COLUMBIA BANKING SYSTEM INC
10-K, 1999-03-30
SAVINGS INSTITUTION, FEDERALLY CHARTERED
Previous: LORD ABBETT RESEARCH FUND INC, 485APOS, 1999-03-30
Next: BRADLEES INC, 4, 1999-03-30



<PAGE>
 
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                                   Form 10-K

(Mark One)
[X]  Annual report pursuant to Section 13 or 15(d) of the Securities Exchange
     Act of 1934
                                [Fee Required]
                For the fiscal year ended December 31, 1998 or
[  ] Transition report pursuant to Section 13 or 15(d) of the Securities
     Exchange Act of 1934
                               [No Fee Required]
                        Commission File Number 0-20288

                         Columbia Banking System, Inc.
            (Exact name of registrant as specified in its charter)

         Washington                                     91-1422237
(State or other jurisdiction of                      (I.R.S. Employer
incorporation or organization)                     Identification Number)

                              1102 Broadway Plaza
                           Tacoma, Washington  98402
             (Address of principal executive offices)  (Zip code)

      Registrant's Telephone Number, Including Area Code: (253) 305-1900
       Securities Registered Pursuant to Section 12(b) of the Act: None
          Securities Registered Pursuant to Section 12(g) of the Act:

                           Common Stock, No Par Value

                               (Title of class)

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934
during the preceding 12 months (or for such shorter period that the registrant
was required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days.

                          Yes   X          No
                             -------         -------        

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K (17 C.F.R. 229.405) is not contained herein, and will not be
contained, to the best of registrant's knowledge, in definitive proxy or
information statements incorporated by reference in Part III of this Form 10-K
or any amendment to this Form 10-K.

The aggregate market value of Common Stock held by non-affiliates of registrant
at February 26, 1999 was $172,462,210.
The number of shares of registrant's Common Stock outstanding at February 26,
1999 was  10,070,786

          Documents incorporated by reference and parts of Form 10-K
                           into which incorporated:

Registrant's Annual Report to Shareholders        Parts I and II
 for the year ended December 31, 1998
Registrant's definitive Proxy Statement           Part III
 Dated  March 26, 1999
<PAGE>
 
                             CROSS REFERENCE SHEET

   Location in Annual Report to Shareholders and Definitive Proxy Statement
                        of Items required by Form 10-K

<TABLE>
<CAPTION>
                                                                                                        
                                                                           Annual Report to Shareholders and 
               Form 10-K                                                      Definitive Proxy Statement
- ------------------------------------------------------     -------------------------------------------------------------
 Part and                                                                                                     Page 
 Item No.                       Caption                                       Caption                        Number
- -----------     --------------------------------------     -------------------------------------------     -------------
<S>               <C>                                        <C>                                          <C>  
Part I                                                         Annual Report to Shareholders
Item 1            Business
 
                  Consolidated Average Balance Sheet           Consolidated Five-Year Summary of
                   and Analysis of Net Interest Income          Average Balances and Net Interest 
                   and Expense                                  Revenue                                        48

                                                               Management Discussion and Analysis of
                                                                Financial Condition and Results of
                                                                Operations ("Management Discussion")           13
 
                  Investments                                  Note 5, Notes to Consolidated Financial
                                                                Statements                                     35
 
                                                               Management Discussion - Securities              20
 
                  Lending Activities                           Management Discussion - Loan Portfolio          16
                                                                                                                       
                                                               Management Discussion - Nonperforming
                                                                Assets                                         17
 
                                                               Note 6, Notes to Consolidated Financial
                                                                Statements                                     36
 
                  Summary of Loan Loss Experience              Note 7, Allowance for Loan Losses               37
                                                               Management Discussion - Provision and
                                                                Allowance for Loan Losses                      18
 
                  Supervision and Regulation                   Management Discussion - Capital                 24
 
 Item 2           Properties                                   Note 8, Notes to Consolidated Financial
                                                                Statements                                     37
 
 Item 3           Legal Proceedings                            Note 14, Notes to Consolidated Financial
                                                                Statements                                     42
  
Part II                                                        Annual Report to Shareholders
Item 5            Market for the Registrant's Common           Management Discussion - Quarterly Common
                   Stock and Related Stockholder                Stock Prices and Dividend 
                   Matters                                      Payments                                       26
 
</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                                       
                                                                        Annual Report to Shareholders and
                         Form 10-K                                          Definitive Proxy Statement
- -----------------------------------------------------------   ---------------------------------------------------------
 Part and                                                                                                     Page 
 Item No.                       Caption                                      Caption                         Number
- -----------     --------------------------------------     ------------------------------------------     -------------
<S>               <C>                                        <C>                                          <C>  
Item 6            Selected Financial Data                    Consolidated Highlights                            2
                                                              Consolidated Five-Year Statements of
                                                              Operations                                       47
                                                             Consolidated Five-Year Summary of
                                                              Average Balances and Net Interest
                                                              Revenue                                          48
 
Item 7            Management's Discussion and                Management Discussion                             13
                   Analysis of Financial Condition and
                   Results of Operations                     Consolidated Five-Year Summary of
                                                              Average Balances and Net Interest
                                                              Revenue                                          48
 
Item 7a           Market Risk Disclosure                     Management Discussion-                            16
                                                              Credit Risk Management 

Item 8            Financial Statements and                   Audited Financial Statements                      28
                   Supplementary Data
                                                             Note 17, Summary of Quarterly Financial
                                                              Information (Unaudited)                          46
 
Part III                                                     Definitive Proxy Statement

Item 10           Directors and Executive Officers           Election of Directors                              4
                   of the Registrant                         Section 16(a) Beneficial Ownership
                                                              Reporting Compliance                             15
 
Item 11           Executive Compensation                     Executive Compensation                             7
 
Item 12           Security Ownership of Certain              Security Ownership of Management                   2
                   Beneficial Owners and Management
 
Item 13           Certain Relationships and Related          Interest of Management in Certain
                   Transactions                               Transactions                                     16
 
</TABLE>
<PAGE>
 
                         COLUMBIA BANKING SYSTEM, INC.
                                   FORM 10-K
                               December 31, 1998

                               TABLE OF CONTENTS
<TABLE>
<CAPTION>
 
                                                    PART I                                            Page
                                                                                                   ----------
Item  1.                                           Business
 
<S>        <C>                                                                                     <C>
             General                                                                                    1
             Strategy                                                                                   1
             Market Area                                                                                2
             Competition                                                                                4
             Employees                                                                                  4
             Executive Officers of the Company                                                          4
             Effects of Governmental Monetary Policies                                                  6
             Consolidated Average Balance Sheet and Analysis of Net Interest Income and Expense         6
             Consolidated Analysis of Changes in Interest Income and Expense                            7
             Investments                                                                                7
             Lending Activities                                                                        10
             Summary of Loan Loss Experience                                                           11
             Deposits                                                                                  12
             Significant Financial Ratios                                                              12
             Short-term Borrowings                                                                     12
             Supervision and Regulation                                                                12
                                                                                               
Item  2.     Properties                                                                                14
Item  3.     Legal Proceedings                                                                         14
Item  4.     Submission of Matters to a Vote of Security Holders                                       14
                                                                                               
                                                   PART II                                     
Item  5.     Market for the Registrant's Common Stock and Related Stockholder Matters                  14
Item  6.     Selected Financial Data                                                                   14
Item  7.     Management's Discussion and Analysis of Financial Condition and Results of        
             Operations                                                                                15
Item 7a.     Market Risk Disclosure                                                                    15
Item  8.     Financial Statements and Supplementary Data                                               15
Item  9.     Changes in and Disagreements With Accountants on Accounting and Financial Disclosure      15
                                                                                               
                                                                                               
                                                   PART III                                    
Item 10.     Directors and Executive Officers of the Registrant                                        15
Item 11.     Executive Compensation                                                                    15
Item 12.     Security Ownership of Certain Beneficial Owners and Management                            15
Item 13.     Certain Relationships and Related Transactions                                            16
                                                                                               
                                                   PART IV                                     
Item 14.     Exhibits, Financial Statement Schedules and Reports on Form 8-K                           16
</TABLE>
<PAGE>
                                     PART I
                                        
Item 1.  Business

General

Columbia Banking System, Inc. ("the Company"), a Washington corporation, is a
registered bank holding company whose wholly owned subsidiary, Columbia State
Bank ("Columbia Bank"), conducts a full-service commercial banking business.
Headquartered in Tacoma, Washington, the Company serves small and medium-sized
businesses, professionals and other individuals through 25 banking offices
located in the Tacoma metropolitan area and contiguous parts of the Puget Sound
region of Washington, as well as the Longview and Woodland communities in
southwestern Washington.  At December 31, 1998, the Company had total assets of
$1.1 billion.

The Company was reorganized and additional management was added in 1993 in order
to take advantage of commercial banking business opportunities resulting from
increased consolidation of banks in the Company's principal market area,
primarily through acquisitions by out-of-state holding companies, and the
resulting dislocation of customers.  Since the reorganization, Columbia Bank has
grown from four branch offices at January 1, 1993 to its present 25 branch
offices and has regulatory approval to open three additional branch offices in
its market area.  Between January 1, 1993 and December 31, 1998, the Company
increased its consolidated assets to $1.1 billion from $198.2 million, its loans
to $828.6 million from $146.2 million and its deposits to $938.3 million from
$151.9 million. Net interest income per year increased to $42.0 million from
$14.8 million and net income per year increased to $10.2 million from a loss of
$139,000 during the 5 year period ending December 31, 1998.  The Company's sole
subsidiary, Columbia Bank, is a Washington state-chartered commercial bank, the
deposits of which are insured by the Federal Deposit Insurance Corporation (the
"FDIC").  Columbia Bank is subject to regulation by the FDIC and the Washington
State Department of Financial Institutions, Division of Banks.  Although
Columbia Bank is not a member of the Federal Reserve System, the Board of
Governors of the Federal Reserve System has certain supervisory authority over
the Company, which can also affect Columbia Bank.

Strategy

Management believes the ongoing consolidation among financial institutions in
Washington has created significant gaps in the ability of large banks operating
in Washington to serve certain customers, particularly the Company's target
customer base of small and medium-sized businesses, professionals and other
individuals.  The Company's business strategy is to provide its customers with
the financial sophistication and breadth of products of a regional bank while
retaining the appeal and service level of a community bank. Management believes
that as a result of the Company's strong commitment to highly personalized
relationship-oriented customer service, its varied products, its strategic
branch locations and the long-standing community presence of its managers,
lending officers and branch personnel, it is well positioned to attract new
customers and to increase its market share of loans and deposits.

The Company's goal over the next several years is to create a well-capitalized,
customer focused, Pacific Northwest banking institution with a significant
presence in selected markets.  The Company intends to effect this growth
strategy through a combination of growth at existing branch offices, new branch
openings (usually following the hiring of an experienced branch manager and/or
lending officer with strong community ties and banking relationships) and
acquisitions.  In particular, the Company anticipates continued expansion in
Pierce County, north into King County (the location of Auburn and Bellevue),
south into Thurston County (the location of the state capitol, Olympia) and
northwest into Kitsap County (the location of Bremerton and Port Orchard).
Expansion by acquisition into these and other markets will be considered as
promising opportunities arise.  In order to fund its lending activities and to
allow for increased contact with customers, the Company is establishing a branch
system catering primarily to retail depositors, supplemented by business
customer deposits and other borrowings.  The Company believes this mix of
funding sources will enable it to expand its lending activities rapidly while
attracting a stable core deposit base.  In order to support its strategy 

                                       1
<PAGE>
 
of growth, without compromising its personalized banking approach or its
commitment to asset quality, the Company has made significant investments in
experienced branch, lending and administrative personnel and has incurred
significant costs related to its branch expansion. Although the Company's
expense ratios have improved since 1993, management anticipates that the ratios
will remain relatively high by industry standards for the foreseeable future due
to the Company's aggressive growth strategy and emphasis on convenience and
personal service. Management is placing increased emphasis on control of
noninterest expense.

The Company completed its first bank acquisitions during the fourth quarter of
1997, merging Cascade Bancorp, Inc. ("Cascade") and Bank of Fife ("Fife") into
Columbia Bank, thereby adding three branch office locations. Cascade operated
three banking offices in the south King County market area. Two of the branches
are located in Auburn (a market in which Columbia did not have a branch) and the
third in downtown Kent. Columbia consolidated its Kent branch office into the
Cascade branch location. Fife operated one banking office in the town of Fife, a
commercial market in which Columbia did not have a branch.

During 1998, Columbia Bank opened four new branches. The Westgate branch in
north Tacoma opened in January, and the 176th and Meridian branch in eastern
Pierce County opened in February. Both are newly constructed, full-service
facilities. In November, its fifteenth Pierce County location opened in the
Stadium district of Tacoma. Also, in November the Bank opened its fourth Cowlitz
County branch inside the Triangle Mall Thriftway store in Longview. The Company
opened its twenty-sixth branch and first Kitsap County location in mid-February
1999 in Port Orchard. The Company's future plans include new locations in
Pierce, King, and Thurston counties of western Washington. The Company currently
has regulatory approval to open three additional branch offices in its market
area. Management continues to pursue opportunities for expansion via a
combination of internal and external growth by acquisition. New branches
normally do not contribute to net income for many months after opening.

In addition to its ongoing expansion, the Company continuously reviews new
products and services to give its customers more banking options. In addition,
new technology and services are reviewed for business development and cost
saving purposes. During the third quarter, the Company occupied a new state-of-
the-art Operations Center that will allow for substantial future growth.

Market Area

The economy of the Company's principal market area, while primarily dependent
upon aerospace, foreign trade and natural resources, including agriculture and
timber, has become more diversified over the past decade as a result of the
success of software companies such as Microsoft and the establishment of
numerous research and biotechnology firms. The Washington economy and that of
the Puget Sound region generally have experienced strong growth and stability in
recent years. The Pierce County Economic Index, a regional publication providing
economic forecasts and commentary, reports that "Five years after it started in
late 1992, the Pierce County economy continued its growth through the first half
of 1998. The local economy has grown at an average rate of just under 2.5%,
that's 0.5% above the long-term historical growth rate. The outlook is for some
cooling off and slower growth over the six quarters from the second half of 1998
through 1999."

In the third quarter of 1998 the Company was named in the Fortune magazine
annual ranking of America's 100 fastest growing companies as judged by earnings
growth. The Company was the only banking company on the list and was ranked
82nd.

Pierce County, the area in which the Company's expansion is primarily focused,
is located in the South Puget Sound region. With 15 branch offices in Pierce
County at the end of 1998, the Company is positioning itself to increase its
market share in this County of approximately 687,000 residents, the second most
populous county in Washington State.

                                       2
<PAGE>
 
Bellevue, where the Company has two banking offices, is located in an area known
as the "Eastside," a metropolitan area with a population of approximately
230,000 that includes several King County cities located east of Seattle. A
large portion of that economy is linked to the aerospace, construction, computer
software and biotechnology industries. Microsoft is headquartered just north of
Bellevue and several biotech firms are located on the Eastside. In recent years,
the area has experienced relatively rapid growth in population and employment,
and household incomes are among the highest in Washington.

During 1997, the Company further expanded into neighboring south King County, an
area of several residential communities whose employment base is supported by
light industrial, aerospace, and forest products industries. In early 1997, the
Company opened a branch office in Kent and with the merger of Cascade added two
branches in Auburn, a market where Columbia had no branch offices. The newly
opened Kent branch was then consolidated into Cascade's Kent branch location.
The merger brought the Company's branch office total in south King County to
four, including the Federal Way office, which opened during 1995. With its close
proximity to Tacoma, the south King County market area is considered an
important natural extension of the Company's Pierce County market area. The
Weyerhaeuser Corporation maintains its world headquarters in Federal Way, which
is located in south King County adjacent to the King/Pierce County line. The
Auburn and Kent Valley areas to the east of Federal Way are high residential and
commercial growth markets and considered by management to be natural areas of
expansion for the Company.

The Company's market area also includes the Longview and Woodland communities in
southwest Washington. The population of Cowlitz County, in which Longview and
Woodland are located, is approximately 93,000. Cowlitz County's economy has
become more diversified in recent years, but remains materially dependent on the
forest products industry and, as a result, is relatively vulnerable to the
cyclical downturns of that industry as well as environmental disputes.

Olympia, with a population of approximately 39,000, and the neighboring
community of Lacey, with a population of approximately 28,000, are the principal
cities in Thurston County.  The county has an approximate population of 200,000.
The area enjoys a stable economic climate due largely to state government
employment and the proximity of the Fort Lewis Army Base and McChord Air Force
Base.  According to the Washington State Almanac (an annual publication of
demographic information of Washington State counties and cities), approximately
40% of the average employment in Thurston County was through federal, state, and
local government agencies. The area also has a significant population of retired
military personnel.

Kitsap County, with a population of approximately 229,000 (sixth largest in the
State), is home to the Bremerton Naval shipyard and the Trident Submarine Base.
Directly west of Seattle across Puget Sound, commuters and visitors are able to
travel by ferry in 30 to 60 minutes to jobs and entertainment in Seattle from
residences in Kitsap County.   According to the Washington State Almanac,
approximately 39% of the average employment in Kitsap County was government 
related.

                                       3
<PAGE>
 
Competition

The Company anticipates that the substantial consolidation among financial
institutions in Washington that has occurred to date will continue due in part
to recent federal legislation concerning interstate banking. Federal law allows
mergers or other combinations, relocations of a bank's main office and branching
across state lines. Several other financial institutions, which have greater
resources than the Company, compete with the Company for banking business in the
Company's market area. Among the advantages of some of these institutions are
their ability to make larger loans, finance extensive advertising campaigns,
access international money markets and allocate their investment assets to
regions of highest yield and demand. The Company currently does not have a
significant market share of the deposit-taking or lending activities in the
areas in which it conducts operations, other than in Pierce County where its
share of bank deposits has grown substantially over the last several years. In
June 1998, the Federal Deposit Insurance Corporation (FDIC) market share report
classified the Company with 13.4% of the deposit market share in Pierce County,
which placed the Company second in the County. Although, the Company has been
able to compete effectively in its market areas to date, there can be no
assurance that it will be able to continue to do so in the future.

Employees

At December 31, 1998, the Company had 439 full-time equivalent employees. The
Company has placed a high priority on staff development. This development
involves selective hiring and extensive training (including customer service
training). New hires are selected on the basis of both technical skills and
customer service capabilities. Emphasis has been placed upon hiring and
retaining additional key officers in areas such as lending, administration and
finance. None of the Company's employees are covered by a collective bargaining
agreement with the Company, and management believes that its relationship with
its employees is satisfactory.

Executive Officers of the Company

The following table sets forth certain information about the executive officers
of the Company.

<TABLE>
<CAPTION>
                                                                                         
                                                                                            Has Served as an  
                                                                                          Executive Officer of
       Name                   Age                        Position                          the Company Since   
- ---------------------------------------------------------------------------------------------------------------
<S>                         <C>     <C>                                                     <C>
W. W. Philip/1/               72      Director, Chairman, and Chief Executive Officer             1993         
J. James Gallagher/2/         60      Director and Vice Chairman                                  1998         
Melanie J. Dressel/3/         46      Director, Executive Vice President - the Company;           1997         
                                      President and Chief Operating Officer - Columbia                         
                                      Bank,                                                                    
H. R. Russell/4/              44      Executive Vice President - Senior Credit  Officer           1996         
Gary R. Schminkey/5/          41      Executive Vice President and Chief Financial                1993         
                                      Officer                                                                  
Evans Q. Whitney/6/           55      Executive Vice President, Retail Banking                    1994         
Donald A. Andersen/7/         53      Senior Vice President, Senior Loan Production               1996         
                                      Officer - Columbia Bank                                                  
Janet D. Hildebrand/8/        50      Senior Vice President, Credit Administrator -               1998          
                                      Columbia Bank
</TABLE>

                                       4
<PAGE>
 
/1/  Mr. Philip has been a director of the Company since July 1993. He became
President and Chief Operating Officer of the Company and President and Chief
Executive Officer of Columbia Bank in August 1993 when the Company's
reorganization was completed and the Company began operations in Tacoma. In
November 1997, Mr. Philip was appointed Chairman, President and Chief Executive
Officer of the Company and Columbia Bank. Until his retirement in December 1992,
Mr. Philip was Chairman of the Board and Chief Executive Officer of Puget Sound
Bancorp ("PSB") since its inception in 1981 and was Chairman of the Board and
Chief Executive Officer of Puget Sound National Bank prior to and after the
inception of PSB, having served with that institution for more than 40 years.

/2/  Mr. Gallagher joined the Company as a Director and Vice Chairman in July
1998. From January 1994 until his appointment at Columbia, Mr. Gallagher was a
principal of Gordon, Thomas, Honeywell, Malanca, Peterson & Daheim, P.L.L.C., a
law firm headquartered in Tacoma, Washington, where he served as outside legal
counsel for the Company. Mr. Gallagher, who is a former bank regulator, has over
30 years of experience as legal counsel to financial institutions throughout the
Northwest.

/3/  Ms. Dressel joined Columbia Bank as Senior Vice President -- Private
Banking in June 1993. In November 1997, she was appointed Executive Vice
President -Retail Banking for Columbia Bank and subsequently was appointed
President and Chief Operating Officer in July 1998. She became a Director of the
Company in 1998. Ms. Dressel served as Senior Vice President and directed the
private banking division of Puget Sound National Bank for nearly five years and
was employed by Bank of California for over 14 years.

/4/  Mr. Russell joined Columbia Bank as Senior Vice President -- Commercial
Loans in October 1993. He was appointed Executive Vice President - Senior Credit
Officer for Columbia Bank in November 1997. Mr. Russell was employed by Puget
Sound National Bank and its successor institution for nearly 14 years, having
served as Vice President -- Commercial Loan Officer from 1991 to 1993.

/5/  Mr. Schminkey joined Columbia Bank as Vice President and Controller in
March 1993. In 1994, he was appointed Senior Vice President -- Chief Financial
Officer of Columbia Bank and the Company and subsequently was appointed
Executive Vice President -- Chief Financial Officer in December 1998. Mr.
Schminkey was employed by PSB, Puget Sound National Bank and its successor
institution for nearly 10 years, having served from 1991 to 1993 as Assistant
Vice President -- Assistant Controller for PSB and during that same period as
Vice President -- Accounting and Finance for Puget Sound National Bank and its
successor institution.

/6/  Mr. Whitney joined Columbia Bank as Senior Vice President -- Human
Resources in March 1993. In July 1998, Mr. Whitney was appointed Executive Vice
President -- Retail Banking for Columbia Bank and the Company. Mr. Whitney was
employed by PSB and Puget Sound National Bank for nearly 27 years, having served
as Senior Vice President -- Human Resources for PSB and Puget Sound National
Bank from 1991 to 1993.

/7/  Mr. Andersen joined Columbia Bank as Senior Vice President -- Commercial
Loans in January 1995. Mr. Andersen was employed by Puget Sound National Bank
and its successor institution for nearly 25 years, having served as Vice
President -- Commercial Loan Officer from 1991 to 1995.

/8/  Ms. Hildebrand joined Columbia Bank as Senior Vice President Credit
Administrator in August 1997. Ms. Hildebrand was employed by First Interstate
Bank of Washington and its successor, Wells Fargo Bank, for 23 years, having
served as Senior Vice President and Regional Manager of Loan Review prior to
leaving that institution in 1997.

All officers are elected by the Board of Directors and serve at the pleasure of
the Board for an unspecified term.

                                       5
<PAGE>
 
Effects of Governmental Monetary Policies

Profitability in banking depends on interest rate differentials. In general, the
difference between the interest earned on a bank's loans, securities and other
interest-earning assets and the interest paid on a bank's deposits and other
interest-bearing liabilities are the major source of a bank's earnings. Thus,
the earnings and growth of the Company are affected not only by general economic
conditions, but also by the monetary and fiscal policies of the United States
and its agencies, particularly the Federal Reserve. The Federal Reserve System
implements national monetary policy for such purposes as controlling inflation
and recession by its open-market operations in United States government
securities, control of the discount rate applicable to borrowings from the
Federal Reserve and the establishment of reserve requirements against certain
deposits. The actions of the Federal Reserve in these areas influence growth of
bank loans, investments and deposits and also affect interest rates charged on
loans and paid on deposits. The nature and impact of future changes in monetary
policies and their impact on the Company are not predictable.

Consolidated Average Balance Sheet and Analysis of Net Interest Income and
Expense

For information concerning consolidated daily average balances, along with
average yields for earning assets and average interest rates for interest-
bearing liabilities, see "Consolidated Five-Year Summary of Average Balances and
Net Interest Revenue" at page 48 of the Annual Report to Shareholders for the
year ended December 31, 1998 ("Annual Report"), which is incorporated herein by
reference.  See also "Management Discussion and Analysis of Financial Condition
and Results of Operations" ("Management Discussion") beginning at page 13 of the
Annual Report for additional details on various asset and liability categories.

                                       6
<PAGE>
 
Consolidated Analysis of Changes in Interest Income and Expense

The following table sets forth the amounts of the changes in consolidated net
interest income attributable to changes in volume and changes in interest rates
for the Company.  Changes attributable to the combined effect of volume and
interest rates have been allocated proportionately to the changes due to volume
and the changes due to interest rates.

<TABLE>
<CAPTION>
                                                     1998 Compared to 1997                     1997 Compared to 1996
                                                  Increase (Decrease) Due to                Increase (Decrease) Due to
                                                -------------------------------             --------------------------
(in thousands)                                   Volume      Rate       Total     Volume        Rate          Total
- ----------------------------------------------------------------------------------------------------------------------
<S>                                             <C>        <C>        <C>        <C>        <C>           <C>
Interest Income
Loans:
  Commercial business                            $ 8,086    $  (219)   $ 7,867    $ 5,532       $ 487        $ 6,019    
  One- to four-family residential                 (1,188)    (1,236)    (2,424)      (293)        761            468    
  Five or more family residential and                                                                                   
    commercial properties                          4,081        200      4,281      6,199        (945)         5,254    
  Consumer                                         1,095       (137)       958        916         279          1,195    
- ----------------------------------------------------------------------------------------------------------------------
    Total loans                                   12,074     (1,392)    10,682     12,354         582         12,936    
Securities                                           763        (54)       709      1,284         102          1,386    
Interest-earning deposits with banks                 242        (45)       197       (205)         79           (126)   
- ----------------------------------------------------------------------------------------------------------------------
    Total interest revenue                       $13,079    $(1,491)   $11,588    $13,433       $ 763        $14,196     
======================================================================================================================
 
Interest Expense
Deposits:
  Certificates of deposit                        $ 3,061    $  (161)   $ 2,900    $ 2,414       $(168)       $ 2,246
  Savings accounts                                    43       (100)       (57)       158         (47)           111
  Interest-bearing demand                          2,178        (37)     2,141      2,185        (137)         2,048
- ----------------------------------------------------------------------------------------------------------------------
    Total interest on deposits                     5,282       (298)     4,984      4,757        (352)         4,405
Federal Home Loan Bank advances                      (59)        (4)       (63)        80         (47)            33
Other borrowings                                     (42)       (42)       (84)       (99)        (50)          (149)
- ----------------------------------------------------------------------------------------------------------------------
    Total interest expense                       $ 5,181    $  (344)   $ 4,837    $ 4,738       $(449)       $ 4,289
======================================================================================================================
</TABLE>

Investments

For additional information concerning securities (securities available for sale
and held to maturity), see Note 5 of "Notes to Consolidated Financial
Statements" at page 35 of the Annual Report and "Management Discussion -
Securities" at page 20 of the Annual Report, all of which are incorporated
herein by reference.

Securities to be held for indefinite periods of time and not intended to be held
to maturity or on a long-term basis are classified as available for sale and
carried at market value. Unrealized gains and losses are recorded directly to a
component of shareholders' equity. Securities available for sale include
securities that management intends to use as part of its asset/liability
management strategy and that may be sold in response to changes in interest
rates and/or significant prepayment risk.

Securities held to maturity are those securities which the Company has the
ability and intent to hold to maturity. Events, which may be reasonably
anticipated, are considered when determining the Company's intent to hold
investment securities until maturity. Investment securities are carried at cost,
adjusted for amortization of premiums and accretion of discounts using a method
that approximates the interest method. Gains and losses on the sale of all
securities are determined using the specific identification method.

At December 31, 1998, there were no securities of any issuer, other than the
U.S. Government and its agencies and corporations, that exceeded ten percent of
shareholders' equity.

                                       7
<PAGE>
 
The following table summarizes the amortized cost, gross unrealized gains and
losses and the resulting market value of Company's securities available for sale
for the years ended December 31, 1998, 1997, and 1996.

<TABLE>
<CAPTION>
Securities Available For Sale                                             Gross            Gross
                                                        Amortized      Unrealized        Unrealized       Market
(in thousands)                                            Cost            Gains            Losses          Value
- ------------------------------------------------------------------------------------------------------------------
<S>                                                   <C>             <C>             <C>              <C>
December 31, 1998:
U.S. Treasury & government agency                         $81,549            $474                          $82,023
Mortgage-backed                                            10,672               1                           10,673
Other securities                                              992              38                            1,030
- ------------------------------------------------------------------------------------------------------------------
Total                                                     $93,213            $513                          $93,726
==================================================================================================================
December 31, 1997:
U.S. Treasury & government agency                         $48,178            $ 78                          $48,256
Mortgage-backed                                             7,046                           $ (27)           7,019
Other securities                                              990              14                            1,004
- ------------------------------------------------------------------------------------------------------------------
Total                                                     $56,214            $ 92           $ (27)         $56,279
==================================================================================================================
December 31, 1996:
U.S. Treasury & government agency                         $40,562            $104           $ (19)         $40,647
Mortgage-backed                                            10,874                            (114)          10,760
FHLMC preferred stock                                         250               8                              258
Other securities                                              249                              (3)             246
State and municipal securities                                130               3                              133
- ------------------------------------------------------------------------------------------------------------------
Total                                                     $52,065            $115           $(136)         $52,044
==================================================================================================================
</TABLE>

The following table provides the carrying values, maturities and weighted
average yields of the Company's securities available for sale at December 31,
1998.

<TABLE>
<CAPTION>
Securities Available For Sale                                               Maturing
                                        -------------------------------------------------------------------------------
                                                                           After 5 But 
                                                           After 1 But      Within 10     
(dollars in thousands)                   Within 1 Year    Within 5 Years      Years         After 10 Years      Total
- -----------------------------------------------------------------------------------------------------------------------
<S>                                       <C>             <C>             <C>             <C>             <C>
U.S. Treasury
  Balance                                  $ 3,521                                                             $ 3,521
  Weighted Average Yield                      6.19%                                                               6.19%
U.S. government agency
  Balance                                    6,489            $32,293         $39,405           $  293          78,502
  Weighted Average Yield                      5.08%              5.75%           5.98%            7.06%           5.81%
Mortgage-backed (1)
  Balance                                                       1,978                            8,695          10,673
  Weighted Average Yield                                         6.36%                            5.92%           6.00%
Other Securities
  Balance                                                       1,030                                            1,030
  Weighted Average Yield                                         6.75%                                            6.75%
- -----------------------------------------------------------------------------------------------------------------------
Total
  Balance                                  $10,010            $35,301         $39,405           $9,010         $93,726
  Weighted Average Yield                      5.47%              5.81%           5.98%            5.96%           5.86%
- -----------------------------------------------------------------------------------------------------------------------
</TABLE>

(1)  The maturities reported for mortgage-backed securities are based on
     contractual maturities and principal amortization.

                                       8
<PAGE>
 
The following table summarizes the recorded value, gross unrealized gains and
losses and the resulting market value of securities held to maturity for the
years ended December 31, 1998, 1997, and 1996.

<TABLE>
<CAPTION>
Securities Held To Maturity                                            Gross           Gross
                                                     Amortized       Unrealized      Unrealized         Market
(in thousands)                                          Cost           Gains           Losses           Value
- ---------------------------------------------------------------------------------------------------------------
<S>                                                  <C>             <C>             <C>              <C>
December 31, 1998:
U.S. government agency                                $   497            $  7                           $   504
State and municipal securities                          5,115             121                             5,236
Other Securities                                          496              18                               515
FHLMC preferred stock                                     250               1                               251
- ---------------------------------------------------------------------------------------------------------------
Total                                                 $ 6,358            $147                           $ 6,505
===============================================================================================================
December 31, 1997:                                                                                   
U.S. Treasury & government agency                     $ 4,743            $  8                           $ 4,751
State and municipal securities                          4,191              54                             4,245
Other Securities                                          495               6                               501
FHLMC preferred stock                                     250               7                               257
- ---------------------------------------------------------------------------------------------------------------
Total                                                 $ 9,679            $ 75                           $ 9,754
===============================================================================================================
December 31, 1996:                                                                                   
U.S. Treasury & government agency                     $ 8,484            $ 15            $(56)          $ 8,443
State and municipal securities                          2,482              31              (2)            2,511
Other Securities                                          655               1                               656
- ---------------------------------------------------------------------------------------------------------------
Total                                                 $11,621            $ 47            $(58)          $11,610
===============================================================================================================
</TABLE>

The following table provides the carrying values, maturities and weighted
average yields of the Company's securities held to maturity at December 31,
1998.

<TABLE>
<CAPTION>
Securities Held To Maturity                                        Maturing
                                   -------------------------------------------------------------------
                                                   After 1 But   After 5 But
                                       Within 1      Within 5     Within 10     After 10
(dollars in thousands)                   Year         Years         Years         Years        Total
- ------------------------------------------------------------------------------------------------------
<S>                                    <C>         <C>           <C>            <C>          <C>
U.S. government agency
  Balance                                               $  497                                  $  497
  Weighted Average Yield                                  7.10%                                   7.10%
State and municipal securities *                                                            
  Balance                                  $ 732         2,670        $1,713                     5,115
  Weighted Average Yield                    6.63%         6.46%         6.36%                     6.45%
Other securities                                                                            
  Balance                                                  496                                     496
  Weighted Average Yield                                  6.77%                                   6.77%
FHLMC stock                                                                                 
  Balance                                    250                                                   250
  Weighted Average Yield                    6.72%                                                 6.72%
- ------------------------------------------------------------------------------------------------------
Total                                                                                       
  Balance                                  $ 982        $3,663        $1,713                    $6,358
  Weighted Average Yield                    6.65%         6.59%         6.36%                     6.54%
- ------------------------------------------------------------------------------------------------------
</TABLE>

*    Yields on fully taxable equivalent basis, based on a marginal tax rate of
     34%.

                                       9
<PAGE>
 
Lending Activities

The following table sets forth the composition of the Company's loan portfolio
by type of loan at the dates indicated.

<TABLE>
<CAPTION>
(in thousands) December 31,                       1998            1997            1996            1995            1994
- ------------------------------------------------------------------------------------------------------------------------
<S>                                             <C>             <C>             <C>             <C>             <C>
Commercial business                             $332,638        $270,946        $194,843        $133,885        $ 89,546
Real estate:
One-to four-family residential                    61,132          71,095          77,359          77,603          83,582
Five or more family residential and
 commercial properties                           291,868         206,628         151,179         113,784          80,010
- ------------------------------------------------------------------------------------------------------------------------
Total real estate                                353,000         277,723         228,538         325,272         253,138
Real estate construction:
 One- to four-family residential                  26,444          29,695          31,446          32,819          23,462
 Five or more family residential and
  commercial properties                           23,213          33,806          10,724           8,985           4,307
- ------------------------------------------------------------------------------------------------------------------------
  Total real estate construction                  49,657          63,501          42,170          41,804          27,769
Consumer                                          94,572          74,710          58,249          51,788          38,120
- ------------------------------------------------------------------------------------------------------------------------
 Subtotal                                        829,867         686,880         523,800         418,864         319,027
Less deferred loan fees and other                 (1,228)           (991)           (649)           (807)           (953)
- ------------------------------------------------------------------------------------------------------------------------
 Total loans                                    $828,639        $685,889        $523,151        $418,057        $318,074
========================================================================================================================
Loans held for sale                             $ 10,023        $  4,377        $ 11,341        $  1,367        $  1,612
========================================================================================================================
</TABLE>

     Note: During 1994, as part of its focus on loan quality, management
      developed more detailed statistical information on various types of
      lending.  In this connection, the December 31, 1994 through December 31,
      1998 loan balances in the table above reflect changes in classifications
      from prior periods.  Due to the impracticality of developing similar
      information for prior period balances, prior period balances have not been
      restated and, as a result, are not comparable with balances at December
      31, 1994 through December 31, 1998.

The following table presents at December 31, 1998, (i) the aggregate maturities
of loans in each major reportable category of the Company's loan portfolio and
(ii) the aggregate amounts of variable and fixed rate loans that mature after
one year.

<TABLE>
<CAPTION>
                                                                   Maturing
                                     -----------------------------------------------------------------
(in thousands)                       Within 1 Year       After 1 But       After Five
                                                       Within 5 Years         Years            Total
- ------------------------------------------------------------------------------------------------------
<S>                                  <C>               <C>                <C>              <C>
Commercial business                     $191,824           $128,428          $12,386          $332,638
Real estate construction                  44,332              2,707            2,618            49,657
- ------------------------------------------------------------------------------------------------------
      Total                             $236,156           $131,135          $15,004          $382,295
======================================================================================================
Fixed rate loans                                           $ 55,285          $ 6,363          $ 61,648
Variable rate loans                                          75,850            8,641            84,491
- ------------------------------------------------------------------------------------------------------
      Total                                                $131,135          $15,004          $146,139
======================================================================================================
</TABLE>

                                       10
<PAGE>
 
The following table sets forth, at the dates indicated, information with respect
to nonaccrual loans, restructured loans, total nonperforming loans (nonaccrual
loans plus restructured loans), real estate owned, total nonperforming assets,
accruing loans past-due 90 days or more and potential problem loans of the
Company.

<TABLE>
<CAPTION>
(in thousands)
 December 31,                                   1998           1997           1996           1995           1994
- ------------------------------------------------------------------------------------------------------------------
<S>                                             <C>            <C>            <C>            <C>            <C>
Nonaccrual                                     $3,603         $1,462         $2,256         $  449         $  452
Restructured                                    1,783             20             25             29             44
- ------------------------------------------------------------------------------------------------------------------
 Total nonperforming loans                     $5,386         $1,482         $2,281         $  478            496
Real estate owned                                 901            231            484          3,304          3,227
- ------------------------------------------------------------------------------------------------------------------
 Total nonperforming assets                    $6,287         $1,713         $2,765         $3,782         $3,723
==================================================================================================================
 
Accruing loans past-due 90 days or more        $   40                        $  111         $  154         $   82
==================================================================================================================
 
Potential problem loans                        $1,862         $  669         $  346         $  239
==================================================================================================================
</TABLE>

For information pertaining to risk elements, see the appropriate sections in
"Management Discussion - Credit Risk Management" beginning at page 16 of the
Annual Report, "Management Discussion - Nonperforming Assets" beginning at page
17 of the Annual Report, "Management Discussion  Provision and Allowance for
Loan Losses" beginning at page 18 of the Annual Report, and Note 7 of "Notes to
Consolidated Financial Statements" beginning at page 37 of the Annual Report,
all of which are incorporated herein by reference.


The table below shows the allocation of the Allowance for Loan Losses for the
last five years.  The allocation is based on an evaluation of loan problems,
historical ratios of loan losses and other factors which may affect future loan
losses in the categories of loans shown.

<TABLE>
<CAPTION>
(dollars in thousands)
December 31,                   1998                  1997                  1996                  1995                  1994
- -----------------------------------------------------------------------------------------------------------------------------------
                                    % of                 % of                  % of                  % of                   % of 
Balance at End          Amount      Total     Amount     Total     Amount      Total      Amount     Total       Amount     Total
 of Period                          Loans*               Loans*                Loans*                Loans*                 Loans* 
 Applicable to:                      
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                    <C>         <C>        <C>        <C>        <C>        <C>         <C>       <C>         <C>        <C>
Commercial 
 business               $5,540       40.0%    $4,109      39.4%    $3,178       37.2%     $2,006      32.0%      $1,537       28.1%
Real estate and 
 construction:
 One- to four-family 
  residential              972       10.6      1,041      14.7      1,115       20.8         699      26.3          773       33.6
 Five or more family 
  residential and 
  commercial properties  2,008       38.0      1,414      35.0        490       30.9         330      29.3          249       26.4
Consumer                   482       11.4        334      10.9        499       11.1         386      12.4          295       11.9
Unallocated                                              1,542                                         919                     321
- ------------------------------------------------------------------------------------------------------------------------------------
  Total                 $9,002      100.0%    $8,440     100.0%    $5,282      100.0%     $4,340     100.0%      $3,175      100.0%
====================================================================================================================================
</TABLE>

*Represents the total of all outstanding loans in each category as a percent of
 total loans outstanding.

                                      11
<PAGE>
 
Deposits

The following table presents the average balances outstanding and weighted
average interest rate for each major category of deposits:

<TABLE>
<CAPTION>
years ended December 31,                             1998                            1997                            1996
- ------------------------------------------------------------------------------------------------------------------------------------
                                            Average         Average         Average         Average         Average         Average
(dollars in thousands)                      Balance        Rate Paid        Balance        Rate Paid        Balance        Rate Paid
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                  <C>              <C>            <C>              <C>            <C>              <C>
Interest-bearing demand and
  money market accounts                     $287,007          3.43%         $223,514          3.45%         $160,020          3.53%
Savings accounts                              39,768          2.51            38,301          2.75            32,438          2.91
Certificates of deposit                      337,557          5.60           282,899          5.66           240,214          5.73
- ------------------------------------------------------------------------------------------------------------------------------------
  Total interest-bearing deposits            664,332          4.48           544,714          4.55           432,672          4.71
Demand and other noninterest-
  bearing                                    149,353                         111,492                          74,940
- ------------------------------------------------------------------------------------------------------------------------------------
  Total deposits                            $813,685                        $656,206                        $507,612
====================================================================================================================================
</TABLE>
                                                                                

The following table shows the amount and maturity of certificates of deposit
that had balances of more than $100,000:

<TABLE>
<CAPTION>
(in thousands) December 31,                                                                                          1998
- ------------------------------------------------------------------------------------------------------------------------------------
Remaining maturity
<S>                                                                                                      <C>
  Three months or less                                                                                             $ 52,673
  Over three through six months                                                                                      23,827
  Over six through twelve months                                                                                     28,596
  Over twelve months                                                                                                  7,681
- ------------------------------------------------------------------------------------------------------------------------------------
    Total                                                                                                          $112,777
====================================================================================================================================
</TABLE>


Significant Financial Ratios

Ratios for the last three years, based on daily average balances, are as
follows:

<TABLE>
<CAPTION>
                                                                        1998               1997               1996
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                                  <C>                <C>                <C>
Return on assets                                                        1.09%              1.21%              0.78%
Return on equity                                                       12.05              14.41              10.15
Dividend payout ratio
Equity to assets                                                        9.02               8.42               7.67
</TABLE>

Short-term Borrowings

At December 31, 1998, 1997 and 1996, there were no short-term (original maturity
of one year or less) borrowings that exceeded 30 percent of shareholders' equity
at the end of the period.

Supervision and Regulation

The Company is a bank holding company within the meaning of the Bank Holding
Company Act of 1956 ("BHC Act") registered with and subject to examination by
the Federal Reserve Board ("FRB"). The Company's Bank subsidiary is a Washington
state chartered bank and is subject to examination, supervision, and regulation
by the Washington State Department of Financial Institutions - Division of Banks
("Division"). The FDIC insures Columbia Bank's deposits and in that capacity
also regulates the Bank.

                                      12
<PAGE>
 
The Company's earnings and activities are affected by legislation, by actions of
the FRB, the Division, the FDIC and other regulators, and by local legislative
and administrative bodies and decisions of courts in Washington state. For
example, these include limitations on the ability of Columbia Bank to pay
dividends to the Company, numerous federal and state consumer protection laws
imposing requirements on the making, enforcement, and collection of consumer
loans, and restrictions by regulators on the sale of mutual funds and other
uninsured investment products to customers.

Legislation may be enacted or regulations imposed to further regulate banking
and financial services or to limit finance charges or other fees or charges
earned in such activities. There can be no assurance whether any such
legislation or regulation will place additional limitations on the Company's
operations or adversely affect its earnings.

Federal law imposes certain restrictions on transactions between the Company and
any nonbank subsidiaries, on the one hand, and Columbia Bank on the other. With
certain exceptions, federal law also imposes limitations on, and requires
collateral for, extensions of credit by insured depository institutions, such as
Columbia Bank, to their non-bank affiliates, such as the Company.

Subject to certain limitations and restrictions, a bank holding company, with
prior approval of the FRB, may acquire an out-of-state bank. Banks in states
that do not prohibit out-of-state mergers may merge with the approval of the
appropriate federal banking agency. A state bank may establish a de novo branch
out of state if such branching is expressly permitted by the other state.

The activities of bank holding companies are generally limited to managing or
controlling banks. Nonbank acquisitions are generally limited to 5% of voting
shares unless the FRB determines that the acquisition is so closely related to
banking as to be a proper incident to banking or managing or controlling banks.

Among other things, applicable federal and state statutes and regulations which
govern a bank's activities relate to minimum capital requirements, required
reserves against deposits, investments, loans, legal lending limits, mergers and
consolidations, borrowings, issuance of securities, payment of dividends,
establishment of branches and other aspects of its operations. The Division and
the FDIC also have authority to prohibit banks under their supervision from
engaging in what they consider to be unsafe and unsound practices.

Under longstanding FRB policy, a bank holding company is expected to act as a
source of financial strength for its subsidiary banks and to commit resources to
support such banks. The Company could be required to commit resources to its
subsidiary banks in circumstances where it might not do so, absent such policy.

The Company and Columbia Bank are subject to risk-based capital and leverage
guidelines issued by federal banking agencies for banks and bank holding
companies. These agencies are required by law to take specific prompt corrective
actions with respect to institutions that do not meet minimum capital standards
and have defined five capital tiers, the highest of which is "well-capitalized.

Columbia Bank is required to file periodic reports with the FDIC and the
Division and is subject to periodic examinations and evaluations by those
regulatory authorities. These examinations must be conducted every 12 months,
except that certain well-capitalized banks may be examined every 18 months. The
FDIC and the Division may each accept the results of an examination by the other
in lieu of conducting an independent examination.

In the liquidation or other resolution of a failed insured depository
institution, deposits in offices and certain claims for administrative expenses
and employee compensation are afforded a priority over other general unsecured
claims, including non-deposit claims, and claims of a parent company such as the
Company. Such priority creditors would include the FDIC, which succeeds to the
position of insured depositors.

The Company is also subject to the information, proxy solicitation, insider
trading restrictions and other requirements of the Securities Exchange Act of
1934.

                                      13
<PAGE>
 
The earnings of the Company are affected by general economic conditions and the
conduct of monetary policy by the U. S. government.

Item 2. Properties

The Company's executive offices and the Main Office of Columbia Bank are located
in approximately 51,000 square feet of leased space in downtown Tacoma. The
lease of the downtown Tacoma office has an initial lease term of seven years.
With an expiration of August 2000, the lease agreement provides for one renewal
option for three years and two additional renewal options for five years each.
The base rent is approximately $50,745 per month for the first four years,
subject to certain increases for landlord operating expenses. Beginning in the
sixth year of the lease and at each five-year renewal date, the base rent may be
adjusted pursuant to a formula which limits the adjustments to an average of 3%
of the base rent per year or 15% of the base rent over the five-year renewal
term. The downtown lease also includes customer and employee parking spaces at
rates at or below current market rates for downtown parking. As of December 31,
1998, Columbia Bank had 15 offices in Pierce County, including the Main Office
(7 leased and 8 owned), three offices in Longview (two owned and one leased),
two offices in Bellevue (1 leased and 1 owned), two offices in Auburn (both
owned), one office in Federal Way (owned), one office in Kent (owned) and one
office in Woodland (owned). Commerce Plaza, one of Columbia Bank's banking
offices in Longview, houses a retail banking office and other tenants.

For additional information pertaining to properties, see Note 8 of "Notes to
Consolidated Financial Statements" at page 37 of the Annual Report, which is
incorporated herein by reference.

Item 3. Legal Proceedings

For information concerning legal proceedings, see Note 14 of "Notes to
Consolidated Financial Statements" at page 42 of the Annual Report, which is
incorporated herein by reference.

Item 4. Submission of Matters to a Vote of Security Holders

None


                                    PART II

Item 5. Market for the Registrant's Common Stock and Related Stockholder Matters

For information concerning the Company's common stock and related security
holder matters, see "Quarterly Common Stock Prices and Dividend Payments" at
page 26 of the Annual Report, which is incorporated herein by reference.

Item 6. Selected Financial Data

For selected financial data concerning the Company, see "Consolidated
Highlights," "Consolidated Five-Year Statements of Operations" and "Consolidated
Five-Year Summary of Average Balances and Net Interest Revenue" at pages 2, 47
and 48, respectively, of the Annual Report, which are incorporated herein by
reference.

                                      14
<PAGE>
 
Item 7.  Management's Discussion and Analysis of Financial Condition and Results
         of Operations

For management's discussion and analysis, see "Consolidated Analysis of Changes
in Interest Income and Expense" in Part I of this report, "Management Discussion
and Analysis of Financial Condition and Results of Operations" at pages 13
through 26 of the Annual Report and "Consolidated Five-Year Summary of Average
Balances and Net Interest Revenue" at page 48 of the Annual Report, all of which
are incorporated herein by reference.

Item 7a.  Market Risk Disclosure

For market risk disclosure, see "Credit Risk Management" at page 16 of the 
Annual Report which is incorporated herein by reference.

Item 8.  Financial Statements and Supplementary Data

For consolidated financial statements of the Company, see "Audited Financial
Statements" beginning at page 28 of the Annual Report which is incorporated
herein by reference.  Note 17, the "Summary of Quarterly Financial Information
(Unaudited)" on page 46 of the Annual Report is also incorporated herein by
reference.

Item 9.  Changes in and Disagreements With Accountants on Accounting and
         Financial Disclosure

None


                                    PART III

Item 10.  Directors and Executive Officers of the Registrant

Information concerning directors of the registrant is incorporated herein by
reference to the section entitled "Election of Directors" beginning at page 4 of
the Company's definitive Proxy Statement dated March 26, 1999 (the "Proxy
Statement") for the annual meeting of shareholders to be held April 28, 1999.

The required information with respect to the executive officers of the Company
is included under the caption "Executive Officers of the Company" in Part I of
this report.  Part I of this report is incorporated herein by reference.

The required information with respect to compliance with Section 16(a) of the
Exchange Act is incorporated herein by reference to the section entitled
"Section 16(a) Beneficial Ownership Reporting Compliance" beginning at page 15
of the Proxy Statement.

Item 11.  Executive Compensation

For information concerning executive compensation see "Executive Compensation"
beginning at page 7 of the Proxy Statement, which is incorporated herein by
reference.  Neither the Report of the Personnel and Compensation Committee on
Executive Compensation nor the Stock Performance Graph, both of which are
contained in the Proxy Statement, are incorporated by this reference.

Item 12.  Security Ownership of Certain Beneficial Owners and Management

For information concerning security ownership of certain beneficial owners and
of management see "Security Ownership of Management" beginning at page 2 of the
Proxy Statement, which is incorporated herein by reference.

                                       15
<PAGE>
 
                                    PART IV

Item 14.  Exhibits, Financial Statement Schedules and Reports on Form 8-K

List of Financial Statements and Financial Statement Schedules.

(a)  (1)  Financial Statements:

      The following consolidated financial statements of the Company, included
      in the Annual Report of the registrant to its shareholders for the year
      ended December 31, 1998, are incorporated by reference in Item 8:

<TABLE>
<CAPTION>
                                                                                             Page
                                                                                             ----
<S>                                                                                          <C>
      Consolidated Statements of Operations--Years ended December 31, 1998, 1997 and 1996      28
      Consolidated Balance Sheets--December 31, 1998 and 1997                                  29
      Consolidated Statements of Shareholders' Equity--Years ended
         December 31, 1998, 1997, and 1996                                                     30
      Consolidated Statements of Cash Flows--Years ended December 31, 1998, 1997 and 1996      31
      Notes to Consolidated Financial Statements                                               32
      Report of Independent Auditors                                                           27
</TABLE>

     (2)  Exhibits:

      See "Index to Exhibits" at page 19 of this Form 10-K.

(b)  Reports on Form 8-K:

     None

                                       16
<PAGE>
 
SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange
Act of 1934, the registrant has duly caused this report to be signed on its
behalf by the undersigned, thereunto duly authorized, on the 26th day of March,
1999.

                                       Columbia Banking System, Inc.
                                             (Registrant)

                                       By  /s/ W. W. Philip
                                          ------------------
                                             W. W. Philip
                                             Chairman and
                                          Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report
has been signed below by the following persons on behalf of the registrant and
in the capacities indicated, on the 26th day of March, 1999.


                                       Principal Executive Officer:


                                           /s/ W. W. Philip
                                          ------------------
                                             W. W. Philip
                                             Chairman and
                                          Chief Executive Officer


                                       Principal Financial Officer:


                                          /s/ Gary R. Schminkey
                                          ---------------------
                                            Gary R. Schminkey
                                       Executive Vice President and
                                         Chief Financial Officer

                                       17
<PAGE>
 
W. W. Philip, pursuant to powers of attorney which are being filed with this
Annual Report on Form 10-K, has signed this report on March 26, 1999, as
attorney-in-fact for the following directors who constitute a majority of the
board of directors.

<TABLE>
         <S>                                        <C>
          [Richard S. DeVine]                            [John Halleran]
         
          [Melanie J. Dressel]                          [Thomas L. Matson]
         
            [Jack Fabulich]                               [John Powell]
         
            [Jonathan Fine]                           [Robert E. Quoidbach]
         
            [John P. Folsom]                             [Donald Rodman]
         
          [J. James Gallagher]                           [Sidney Snyder]
         
         [Margel S. Gallagher]                      [William T. Weyerhaeuser]
         
         [W. Kelso Gillenwater]                          [James M. Will]
 
</TABLE>

                                                     /s/ W. W. Philip
                                                    ------------------
                                                       W. W. Philip
                                                     Attorney-in-fact
                                                      March 26, 1999

                                       18
<PAGE>
 
INDEX TO EXHIBITS


 Exhibit
   No.
 -------
    3     (a)  Restated Articles of Incorporation of the Company. (5)

          (b)  Restated Bylaws of the Company. (3)

   10     (a)  Lease dated May 7, 1993 between the Company and William B.
                 Swensen Enterprises for Tacoma Main Office premises of Columbia
                 Bank. (1)

          (b)  Stock Option Plan as amended and restated effective
                 April 23, 1997. (4)

         *(c)  Employment agreement between the Company and W. W. Philip
                 effective January 1, 1998, except with respect to sections 4.3
                 and 4.4 (granting restricted stock awards) which are effective
                 August 28, 1996 and January 28, 1998, respectively. (7)

         *(d)  Employment agreement between the Company and J. James Gallagher
                 effective July 1, 1998, except with respect to section 4.3
                 (granting restricted stock award) which is effective April 22,
                 1998.

          (e)  Data processing servicing agreement dated May 3, 1993 between the
                 Company and M&I Data Services. (2)

          (f)  Deferred Compensation Plan for directors and certain key
                 employees effective April 1, 1995. (7)

   11     Statement re computation of per share earnings.

   13     The Company's Annual Report to Shareholders for the fiscal year ended
          December 31, 1998. (6)

   21     Subsidiaries of the Company are:

          (a)  Columbia State Bank, Tacoma, Washington, a Washington state-
                 chartered commercial bank.


                                       19
<PAGE>
 
24      Powers of Attorney dated March 9, 10, and 12, 1999.

27      Financial Data Schedule

<TABLE>
<S>     <C>
 (1)    Incorporated by reference to the Form SB-2 (Registration No. 33-66224)
        previously filed by the Company, declared effective on August 16, 1993.
                                                          
 (2)    Incorporated by reference to the Annual Report on Form 10-KSB for the
        year ended December 31, 1993 previously filed by the Company.
                                                                  
 (3)    Incorporated by reference to the Quarterly Report on Form 10-Q for the
        quarterly period ended March 31, 1997 previously filed by the Company.

 (4)    Incorporated by reference to the definitive Proxy Statement dated March
        20, 1997 for the Annual Meeting of Shareholders held April 23, 1997.
 
 (5)    Incorporated by reference to the Quarterly Report on Form 10-Q for the
        quarterly period ended June 30, 1998 previously filed by the Company.

 (6)    Portions of the Annual Report to Shareholders have been specifically
        incorporated by reference elsewhere in this report.
 
 (7)    Incorporated by reference to the Annual Report on Form 10-K for the year
        ended December 31, 1997 previously filed by the Company.

</TABLE>

  *     The listed documents are management contracts which contain compensatory
        arrangements.

                                       20

<PAGE>
 
                                Exhibit 10 *(d)

<PAGE>
 
                                Exhibit 10 *(d)
EMPLOYMENT AGREEMENT

THIS EMPLOYMENT AGREEMENT (the "Agreement") is made and entered into by and
between Columbia State Bank, a Washington banking corporation ("Columbia Bank")
together with Columbia Banking System, Inc., a Washington corporation ("CBSI")
(collectively, the "Employer"), and J. JAMES GALLAGHER (the "Executive").  This
Agreement shall become effective as of July 1, 1998.

RECITALS

Executive has served as outside legal counsel to Employer and has substantial
knowledge of Employer's affairs and of the business of financial institutions in
general.  Employer has incurred substantial growth and is looking to continue
expansion of its operations, with the assistance of Executive.  Executive is
willing to so assist the Employer and to discontinue his outside legal practice,
in return for consideration provided herein.

In consideration of the mutual promises made in this Agreement, the parties
agree as follows:

AGREEMENT

1.  Employment.
Employer employs Executive and Executive accepts employment with Employer on the
terms and conditions set forth in this Agreement.
2.  Term.
The term of this Agreement will commence as of July 1, 1998 and will continue
until June 30, 2003, unless extended or sooner terminated as provided in this
Agreement.
3.  Duties.
(a)  Executive will be Vice-Chairman of Columbia Bank and CBSI.  In such
     capacities, and subject to the authority of the Chairman and the Board of
     Directors of Columbia Bank and CBSI, as appropriate, Executive will be
     responsible for strategic planning, merger and acquisition activity, legal
     and regulatory compliance and will in addition render the executive
     management and perform the tasks in connection with the affairs of Columbia
     Bank and CBSI that are normal and customary to the positions that he will
     hold.
(b)  Executive will perform such other duties as may be appropriate to his
     position and as may be prescribed from time to time by the Chairman or the
     Board, or that are provided in the Bylaws, of Columbia Bank or CBSI.  He
     will also report to the Chairman.
(c)  Executive will devote his best efforts and all necessary time, attention,
     and effort to the business and affairs of Employer and its affiliates, as
     such business and affairs now exist or hereafter may be changed or
     supplemented, in order to properly discharge his responsibilities under
     this Agreement.  He may delegate such of his duties as he sees fit to the
     other officers of CBSI or its subsidiaries.

4.  Salary, Bonus, and Other Compensation.
  4.1  Salary.
(a)  During the term of this Agreement, Employer will pay Executive an annual
     (calendar year) base salary of not less than $175,000 per year (payable at
     the rate of $14,583.33 per month) beginning July 1, 1998.
(b)  Columbia Bank will guarantee payment of any portion of Executive's
     compensation that may be allocated to a subsidiary of CBSI.
(c)  If this Agreement terminates prior to June 30, 2003, then Employer will pay
     Executive such greater or lesser amount of the agreed compensation as
     provided in Section 5.

  4.2  Bonus.  Executive will be eligible to participate in the bonus pools, if
any, that the Board of Columbia Bank or CBSI may establish for senior
executives, either under an executive incentive plan or otherwise.

  4.3  1998 Restricted Stock Award.
(a)  Grant of Restricted Stock Award.  In order to further incent Executive in
     his employment as a senior executive officer, CBSI hereby grants and issues
     to and in the name of the Executive as a Restricted Stock Award a total of
     ten thousand (10,000) shares of the no par value common stock of CBSI (the
     "1998 Shares").  The date of grant is April 22, 1998.
<PAGE>
 
(b)  Consideration for Issuance of 1998 Shares.  In consideration for the
     issuance of the 1998 Shares, the Executive agrees to become Vice Chairman
     effective July 1, 1998 and to remain as an active executive officer and/or
     Board member of CBSI and Columbia Bank from July 1, 1998, through the
     period the 1998 Shares are subject to the escrow, as provided herein.
     Should the Executive fail, without the express approval of the Committee,
     to remain in such capacity, the 1998 Shares will be redelivered by the
     Escrow Agent to CBSI and will be canceled.  CBSI will have no other remedy
     for such a breach.
(c)  Escrow.  The certificate(s) evidencing the 1998 Shares shall be deposited
     in escrow immediately upon issuance by CBSI.  Columbia Bank shall act as
     Escrow Agent and, as such, shall hold the 1998 Shares subject to delivery
     to the Executive or redelivery to CBSI in its corporate capacity, all in
     accordance with the terms of this Agreement.  The Executive hereby grants
     an irrevocable power of attorney to the Escrow Agent to transfer and
     deliver the 1998 Shares and the stock certificate(s) evidencing the same in
     accordance with the terms and provisions of this Agreement and the
     directions of the Board of Directors or the Committee.
(d)  Escrow Stock Not Transferable.  No transfer, pledge or other disposition of
     the 1998 Shares may be made by the Executive so long as they are held under
     and remain subject to the escrow.
(e)  Term of Escrow.  The 1998 Shares shall be subject to escrow until April 22,
     2003 unless sooner terminated in accordance with the terms of this
     Employment Agreement.
(f)  Dividends and Voting Rights.  During the period while the 1998 Shares are
     held in escrow, all dividends payable with respect the such 1998 Shares
     shall be paid by the Escrow Agent directly to the Executive and the
     Executive shall be entitled to exercise all voting rights with respect to
     such 1998 Shares, all in the same manner and to the full extent as though
     such 1998 Shares were held by the Executive free of the escrow.
(g)  Release of Stock From Escrow.  1998 Shares held in escrow pursuant to this
     Agreement shall be released from such escrow by the delivery of the stock
     certificate(s) evidencing such 1998 Shares to the Executive (or, in the
     case of death or disability of the Executive, to the Executive's estate or
     legal guardian) at the earlier of:

  (i)  April 22, 2003;
 (ii)  The mandatory retirement of Executive from service as a director, as
       provided in Section 2.3 of CBSI's Bylaws and Section 2.1 of Columbia
       Bank's Bylaws;
(iii)  The death or disability (as defined below) of the Executive;
 (iv)  The determination by the Board of Directors or the Committee to authorize
       the release of such 1998 Shares to the Executive upon the occurrence of
       any event that the Board or Committee determines to warrant such release;
       or
 (iv)  The occurrence of a change in control, as defined in Section 7.2 of this
       Agreement.
(h)  Termination of Service/Forfeiture of 1998 Shares.  In the event of the
     termination of service as an active executive officer and/or Board member
     of CBSI or Columbia Bank during the period that the 1998 Shares are held in
     escrow (and the 1998 Shares are not then released pursuant to the
     provisions of Section 4.3(g) above), such 1998 Shares shall be forfeited to
     CBSI and all rights of the Executive with respect thereto terminated,
     unless, in the case of termination by act of Employer, the Board of
     Directors or the Committee, within thirty (30) days following such
     termination, authorizes the release of such 1998 Shares to Executive.  Upon
     the expiration of such thirty (30) day period without action by the Board
     or Committee to release such 1998 Shares to the Executive, the 1998 Shares
     shall be deemed forfeited and the stock certificate(s) evidencing the same
     shall be redelivered to CBSI, whereupon they shall be canceled and retired.
<PAGE>
 
  (i)  Reliance by Escrow Agent.  The Escrow Agent shall have no liability for
action in reliance upon any instructions delivered to it and believed in good
faith by it to be from the Board or the Committee.

  4.4  Benefits.  In addition to the base salary and bonus payable or
potentially payable to Executive pursuant to this Section 4, Executive will be
entitled to receive benefits similar to those offered to other senior executives
of Employer.

5.  Termination of Agreement.
  5.1  Early Termination.
(a)  This Agreement may be terminated at any time by the Board of Employer or by
     Executive, and it shall terminate upon Executive's death or disability. Any
     termination by the Board of Employer other than termination for cause (as
     defined below) shall not prejudice Executive's right to compensation or
     other benefits under this Agreement. Except as provided in Section 7, if
     Executive voluntarily terminates his employment before June 30, 2003 he
     will be entitled to such payments as he would have the right to receive
     upon termination for cause under subsection 5.1 (b).
(b)  Except as provided in Section 7, if Employer terminates this Agreement
     without cause, Employer shall pay Executive upon the effective date of such
     termination all salary earned, benefits accrued and all reimbursable
     expenses hereunder incurred through such termination date and, in addition,
     liquidated damages in an amount equal to the greater of (i) two years'
     salary, or (ii) salary for the then-remaining term of the Agreement payable
     hereunder; in such event, all forfeiture provisions regarding the
     Restricted Stock Award shall lapse. If Employer terminates this Agreement
     for cause, Employer shall pay Executive upon the effective date of such
     termination only such salary earned, benefits accrued and expenses
     reimbursable hereunder incurred through such termination date. Executive
     shall have no right to receive compensation or other benefits for any
     period after termination for cause.
(c)  For purposes of this Agreement, the term "cause" shall mean (i) willful
     misfeasance or gross negligence in the performance of his duties; (ii)
     conduct demonstrably and significantly harmful to Employer (including
     willful violation of any final cease and desist order applicable to
     Employer or a financial institution subsidiary); or (iii) conviction of a
     felony.  For purposes of this Agreement, "disability" shall mean a
     medically reimbursable physical or mental impairment that may be expected
     to result in death, or to be of long, continued duration, and that renders
     Executive incapable of performing the duties required under this Agreement.
     The Board or the Committee, acting in good faith, shall make the final
     determination of whether Executive is suffering under any disability as
     herein defined and, for purposes of making such determination, may require
     Executive to submit himself to a physical examination by a physician
     mutually agreed upon by Executive and the Board or the Committee at
     Employer's expense.
(d)  In the event of termination of this Agreement by reason of Executive's
     death or disability, all forfeiture provisions regarding the Restricted
     Stock Award shall lapse.

  5.2  Obligations.  Except as otherwise provided in Section 7 or in a
particular option grant, Executive's rights, if any, to vested but unexercised
stock options will continue for a period of one year after early termination,
other than termination for cause. In the case of termination for cause,
Executive's unvested stock options, if any, shall terminate immediately.

6.  Restrictive Covenant.
  6.1  Noncompetition.
(a)  Executive agrees that except as otherwise set forth in this Agreement, he
     will not, during the term of this Agreement and for a period of two years
     after the later of (i) expiration of the term of this Agreement, or (ii)
     completion of service as an active executive officer and/or Board member of
     CBSI or 
<PAGE>
 
     Columbia Bank, directly or indirectly, become interested in, as
     principal shareholder, director, or officer, any financial institution
     (other than an institution controlled by, controlling, or under common
     control with Employer and its affiliates) that competes within the State of
     Washington with Employer or any of its affiliates, with respect to
     activities of the type performed by such companies within such service area
     immediately prior to Executive's termination.
(b)  The restrictions concerning competition after termination as contained in
     this Section 6.1 shall apply only in the event that Executive voluntarily
     terminates his employment with Employer without good reason.  For purposes
     of this Agreement, termination for "good reason" shall mean termination by
     Executive as a result of any material breach of this Agreement by Employer,
     or any diminution of duties of Executive by the Board of either Columbia
     Bank or CBSI.  The provisions restricting competition by Executive may be
     waived by the Employer.

  6.2  Noninterference.  During the noncompetition period described in Section
6.1, Executive shall not solicit or attempt to solicit any other employee of
Employer or its affiliates to leave the employ of those companies, or in any way
interfere with the relationship between Employer and any other employee of
Employer or its affiliates.

  6.3  Interpretation.  If a court or any other administrative body with
jurisdiction over a dispute related to this Agreement should determine that the
restrictive covenants set forth above is unreasonably broad, the parties
authorize such court or administrative body to narrow the covenants so as to
make it reasonable, given all relevant circumstances, and to enforce such
revised covenants.  The covenants in this paragraph shall survive termination of
this Agreement.

7.  Change of Control.

  7.1  Benefits.  The parties recognize that a "change of control" of Employer
(as defined in Section 7.2) could be detrimental to Executive's continued
employment.  Accordingly, in order to give further assurances to the Executive
to enter into this Agreement, if:
(a)  There is a change of control of CBSI; and either
(b)  Within 730 days of such change in control, Executive terminates his
     employment with Employer; or
(c)  At any time from and after sixty days prior to the public announcement by
     Employer of a transaction that will result in the change of control,
     Employer (or its successor) terminates Executive's employment without
     cause, then Executive, as of the date of termination of his employment,
     subject to the remaining provisions of this Section 7.1, shall be paid or
     provided with: (i) continued payment of his base salary and all benefits
     provided for in this Agreement until two years following termination or
     June 30, 2003, whichever is longer; and (ii) vesting of all stock options
     and lapse of all restrictions with respect to the Restricted Stock Award
     shall occur.  The provisions of this Section 7.1 shall survive expiration
     of the term of the Agreement.

  7.2  Definitions.  For purposes of this Agreement, the term "change of
control" shall mean the occurrence of one or more of the following events:
(a)  One person or entity acquiring or otherwise becoming the owner of twenty-
     five percent or more of CBSI's outstanding common stock;
(b)  Replacement of a majority of the incumbent directors of CBSI or Columbia
     Bank by directors whose elections have not been supported by a majority of
     the Board of either company, as appropriate; or
(c)  Dissolution, or sale of fifty percent or more in value of the assets, of
     either CBSI or Columbia Bank.
<PAGE>
 
  7.3  Reimbursement.  In the event the provisions of this Section 7.3 result in
imposition of a tax on Executive under the provisions of Internal Revenue Code
(S) 4999, Employer agrees to reimburse Executive for the same, exclusive of any
tax imposed by reason of receipt of reimbursement under this Section 7.3.

8.  Miscellaneous.

  8.1  This Agreement contains the entire agreement between the parties with
respect to Executive's employment with Employer and his covenant not to compete
with Employer and its affiliates, and is subject to modification or amendment
only upon amendment in writing signed by both parties.

  8.2  This Agreement shall bind and inure to the benefit of the heirs, legal
representatives, successors, and assigns of the parties, except that Employer's
rights and obligations may not be assigned.  The provisions of Section 6.1 of
this Agreement are intended to confer upon CBSI and its subsidiaries and
affiliates the benefits of Executive's covenant not to compete.

  8.3  If any provision of this Agreement is invalid or otherwise unenforceable,
all other provisions shall remain unaffected and shall be enforceable to the
fullest extent permitted by law.

  8.4  This Agreement is made with reference to and is intended to be construed
in accordance with the laws of the State of Washington.  Venue for any action
arising out of or concerning this Agreement shall lie in Pierce County,
Washington.  In the event of a dispute under this Agreement not involving
injunctive relief, the dispute shall be arbitrated pursuant to the Superior
Court Mandatory Arbitration Rules ("MAR") adopted by the Washington State
Supreme Court, irrespective of the amount in controversy.  This Agreement shall
be deemed as stipulation to that effect pursuant to MAR 1.2 and 8.1.  The
arbitrator, in his or her discretion, may award attorney's fees to the
prevailing party or parties.

  8.5  Any notice required to be given under this Agreement to either party
shall be given by personal service or by depositing a copy thereof in the United
States registered or certified mail, postage prepaid, addressed to the following
address, or such other address as addressee shall designate in writing:

          Employer:                 1102 Broadway
                                    Tacoma, WA  98402

          Executive:                23 Lagoon Lane North
                                    Lakewood, WA  98498

This Agreement is dated as of May 27, 1998.

                                       COLUMBIA STATE BANK               
                                                                         
                                                                         
                                       By:  /s/ W.W. Philip              
                                            ---------------              
                                            W.W. Philip                  
                                            Its: Chairman, President and 
                                                 Chief Executive Officer 
                                                                         
                                                                         
                                       COLUMBIA BANKING SYSTEM, INC.      
<PAGE>
 
                         By:  /s/ W.W. Philip
                              ---------------
                         W.W. Philip
                         Its: Chairman, President and Chief Executive Officer

                              /s/ J. James Gallagher
                              ----------------------
                         J. James Gallagher

<PAGE>
 
                                   Exhibit 11

<PAGE>
  
                                  Exhibit 11
                                        

               Statement re computation of per share net income
                         Columbia Banking System, Inc.


<TABLE>
<CAPTION>

                                                                                 Twelve Months Ended December 31,
(in thousands, except per share data)                                     1998                 1997                 1996
- --------------------------------------------------------------------------------------------------------------------------------
 
<S>                                                                     <C>                  <C>                  <C>
- --------------------------------------------------------------------------------------------------------------------------------
Net income applicable to common stock                                   $10,201              $ 9,275               $4,635
================================================================================================================================
                                                          
Average number of basic common shares outstanding                        10,046                9,875                7,192
Dilutive effect of stock options unexercised                                313                  291                  205
- --------------------------------------------------------------------------------------------------------------------------------
Average number of diluted common shares outstanding                      10,359               10,166                7,397
================================================================================================================================
                                                          
         Diluted net income per share                                   $  0.98              $  0.91               $ 0.63
================================================================================================================================
</TABLE>

On April 22, 1998, the Company announced a three shares for two stock split
payable on May 20, 1998, to shareholders of record on May 6, 1998.   Common
shares issued and outstanding, average shares outstanding and net income per
share for all periods presented have been retroactively adjusted to give effect
to this transaction.

For additional information on earnings per share, please see the "Capital"
section of the "Management Discussion and Analysis of Financial Condition and
Results of Operations" beginning at page 24 of the Annual Report, which is
incorporated herein by reference.

<PAGE>
 
                                                                      EXHIBIT 13

                         COLUMBIA BANKING SYSTEM, INC.

                              1998 ANNUAL REPORT
<PAGE>
 
COLUMBIA BANKING SYSTEM, INC. is a Tacoma, Washington-based bank holding company
which operates Columbia Bank, a state-chartered full-service commercial bank
with 26 banking offices in Pierce, King, Cowlitz and Kitsap counties. The
cornerstone of Columbia Bank's business approach is a return to friendly,
old-fashioned banking, coupled with modern convenience and technology. Columbia
Bank is a local bank, strongly committed to its customers and the communities it
serves.

<PAGE>
 
BANKING
IS WHAT
BANKING
WAS

(PHOTO)

                                       1
<PAGE>
 
<TABLE>
<CAPTION>
 
consolidated
         highlights
(dollars in thousands                                                         percent
except per share amounts)                                   1998       1997    change
<S>                                                   <C>          <C>        <C>
for the year
Net interest income                                   $   41,960   $ 35,231      19.1%
Provision for loan losses                                  1,900      4,726     (59.8)
Net income                                                10,201      9,275      10.0
 Net income excluding unusual items *                     10,201      8,165*     25.0
 
per share
Net income (basic)                                    $     1.02   $   0.94       8.5%
Net income (diluted)                                        0.98       0.91       7.7
 Net income excluding unusual items * (basic)               1.02       0.83*     22.9
 Net income excluding unusual items * (diluted)             0.98       0.80*     22.5
Book value                                                  8.90       7.93      12.2
 
at year-end
Assets                                                $1,059,919   $864,555      22.6%
Loans                                                    828,639    685,889      20.8
Allowance for loan losses                                  9,002      8,440       6.7
Deposits                                                 938,345    740,430      26.7
Shareholders' equity                                      89,566     78,353      14.3
 
Number of full-time equivalent employees                     439        327
Number of banking offices at year end                         25         21
 
financial ratios
Net interest margin                                         4.87%      4.96%
Return on average assets                                    1.09       1.21
Return on average equity                                   12.05      14.41
Return on average assets excluding unusual items *          1.09       1.07*
Return on average equity excluding unusual items *         12.05      12.68*
Efficiency ratio                                           67.84      69.00
Average equity to average assets                            9.02       8.42
 
risk-based capital ratios
 Tier I capital                                             9.89%     10.77%
 Total capital                                             10.88      11.93
 Leverage ratio                                             8.72       9.33
</TABLE>
 
*   1997 unusual items include: Key Man Life Insurance proceeds of $3.5 million
(non-taxable), additional loan loss provision of $1.3 million (net of tax), and
merger related expenses of $1.1 million (net of tax).

                                       2
<PAGE>
 
to our shareholders

As Columbia prepares to move into the year 2000, we remain committed to the
values and service that helped us surpass our original goals. The heart and soul
of Columbia Bank is the trust we have in our people and in their connection with
the customers they serve. Our people and the values they embrace leave us well
positioned as we enter the new millennium. I am pleased to announce strong
earnings and loan growth for 1998. Comparing 1998 earnings with 1997 is a bit
confusing due to certain unusual, non-recurring items that occurred in 1997.
Excluding those items, net income in 1998 increased 25 percent. Our profit for
the year was $10.2 million, or $0.98 on a diluted per share basis. The Bank's
deposit generation continued to grow with ongoing branch expansion and demand
for our service. Deposits reached $938 million at year-end, up 27 percent from
one year ago, further increasing our growing share of the retail market. On
September 1, 1993 when we started Columbia Bank, we were last in market share in
Pierce County. We are proud to announce that we have now grown to number 2 in
deposits in Pierce County. Strong loan demand contributed to growth of 21
percent for the year, with loans totaling $828.6 million at December 31, 1998,
up from $685.9 million at year-end 1997.

     Within five years of implementing our aggressive expansion strategy
targeting Pierce and South King counties, your Company reached one billion in
assets by the end of September 1998. At year-end 1998, Columbia Banking System's
assets were $1.1 billion, up 23 percent from $864.6 million at year-end 1997. Of
course, size alone is not the primary measure of our performance. Operating
efficiency continued to improve during a year of expansion, down to 67.8 percent
for 1998, from 69 percent in 1997. Loan growth remains balanced with careful
attention to asset quality. Nonperforming assets were 0.59 percent of total
assets, and nonaccrual loans were 0.43 percent of total loans at year-end.

     During 1998, we expanded lending operations in several major areas. We
established a dealer banking program that helped diversify our loan portfolio.
We also created a Correspondent Banking Department, with the purpose of
providing banking services of all kinds to smaller commercial banks throughout
the northwest. This allows us to sell banking products and services these banks
don't currently offer to their customers. To offer additional support to these
small banks, we enhanced our Merchant Services Department in May of last year.
The department brings in bank card fees and more business deposits. Our consumer
loan portfolio expanded to $95 million in 1998 from $75 million in 1997, an
increase of 27 percent. As the number of retail branches increase, our ability
to provide consumer loans is also improved.

                                       3
<PAGE>
 
     In 1998 we made a commitment to hire management and staff for a full-
service International Department. Our search led to the hiring of well-seasoned,
experienced international bankers; the department was up and running by the end
of February, 1999.

     On a personal note, I announced last year that I will be stepping aside as
an active officer later in 1999. I am very pleased that we have in place the
senior executive team that will guide the Bank's future growth and expansion.
During the third quarter of 1998 we announced the appointment of Melanie Dressel
as President and Chief Operating Officer of Columbia Bank, and Jim Gallagher as
Vice Chairman of the Bank and Columbia Banking System, Inc. Evans "Tex" Whitney
was also appointed as Executive Vice President with responsibility for the
bank's branch network. H.R. Russell, our Executive Vice President of commercial
banking, continues to maintain responsibility for all lending, production and
administration. Gary Schminkey, our Executive Vice President and Chief Financial
Officer, rounds out this group. This accomplished and experienced team will
guide the Company as we meet the opportunities and challenges that lie ahead.

     I am very proud of this team and of what we've accomplished so far - and
we're just beginning. I also thank you, our shareholders, for your continued
support.


                                                 /s/ W. W. Philip
                                       ------------------------------------
                                                   W. W. PHILIP            
                                       Chairman and Chief Executive Officer 



A MESSAGE FROM MELANIE J. DRESSEL

     The financial services environment today continues to create opportunities
for your Bank due to the impact of industry consolidations. Your Company will
continue to focus on commitment to high quality customer service, while
aggressively pursuing growth through acquisition and branching in appropriate
markets.

     Our philosophy and practice continues to be hiring the right banker
familiar with his or her own market - because it works. Our branch network is
built around the experience, skills and individualized relationships of these
bankers with their customers and their community.

     Last year, Columbia Bank continued to expand the franchise in selected
markets as we opened four new branches, bringing the total number of banking
locations to twenty-five in Pierce, King and Cowlitz counties. The branches we
opened in Tacoma's Westgate and Stadium areas, and 176th and Meridian in
Puyallup are traditional, full-service branch facilities. We also added the
Triangle Mall branch in Longview's Thriftway store, offering customers 7-day-a-
week banking and extended hours.

                                       4
<PAGE>
 
Our first Kitsap County branch opened mid-February, 1999 in Port Orchard. We
have identified a potential expansion opportunity in Olympia in Thurston County
and expect a small branch facility to open by the end of first quarter 1999.

     While expansion and growth are important, we must also provide our
customers with the highest quality products and services, through the delivery
channels they demand. Columbia Bank offers choices - to do business face-to-
face, over the phone, by mail, and during 1999, over the Internet. Offering
these choices requires sound technology that's used to enhance, not diminish
customer relationships.

     Through our website at www.columbiabank.com, we expect to offer home
banking during 1999. Customers will be able to check their transactions and
account balances, and transfer funds without the need to visit a branch office.
This will be coupled with a redesign of our home page to provide easier access
to products, services and information for our existing and potential customers.

     Like all banks last year, we saw compressed net interest margins as a
result of lower interest rates and competitive pressure in our market. Loans are
always priced competitively with special attention paid to the overall
relationship and its benefit to both the customer and the Bank.

     A substantial portion of Columbia Bank's readiness strategy for the Year
2000 date change has been completed to our satisfaction. We are continuing our
efforts to ensure our systems, and those provided to us by outside companies
will operate smoothly in the Year 2000. We are confident that our internal
systems will be in compliance well before January 1, 2000, and we expect all
equipment and software in our control will be Year 2000 compliant by this
spring.

     All of us at Columbia are committed to growing your organization and
building long-term value for our shareholders. We know that the foundation of
our growth is the strength of the communities we serve, and in giving back for
the greater good. In that spirit, Columbia Bank and our volunteers give
generously of both their time and money to support a wide variety of programs
for health, education and youth programs, the arts, and community
revitalization.


     Our progress and strong 1998 performance show that our strategies are
working well. We thank our employees, shareholders and customers, all of whom
have contributed to our success.

                           


                            /s/ Melanie J. Dressel
                     --------------------------------------
                              MELANIE J. DRESSEL
                           Executive Vice President,
                         Columbia Banking System, Inc.
                     President and Chief Operating Officer,
                                 Columbia Bank


                                       5
<PAGE>
 
Come into any of our twenty-six branches. Look us up @ www.columbiabank.com. Or
just call on the phone. You'll be treated the way you expect to be treated: not
as a number or as a too small for our attention account, but as an individual.
With your own specific preferences, ideas, needs and goals. To make sure that
banking is what banking was, everything we do begins with the customer: after
all, without customers, what sort of business could we possibly have?
(PHOTO)

                                       6
<PAGE>
 
WE MAKE A
POINT
OF GETTING
INVOLVED
(PHOTO)

                                       7
<PAGE>
 
EXPERIENCE
TO MAKE
DECISIONS
ON THE SPOT
(PHOTO)

                                       8
<PAGE>
 
No one likes to wait. No one likes to be viewed as just another customer with
just another loan. Which are just a few reasons for the way we've built our
business around experienced bankers: people who have the knowledge, insight and
authority to respond to a customer. On the spot. By working from the perspective
of customers, we've developed a culture that has a responsive, one-of-a-kind
mentality. Supported by all the tools and systems to be effective for customers
and for our Company. (PHOTO)

                                       9
<PAGE>
 
It all comes back to loyalty. We find ways to show it to our employees, to our
vendors, to our customers, shareholders and communities every day. In how we
develop new business, and keep relationships strong with the people who have
stayed with us. And we feel loyalty is returned to us. You can measure that
loyalty through our record growth in assets and income, and you can measure it
in the trust customers show us. Not to mention the thanks that come our way for
a job well done. (PHOTO)

                                      10
<PAGE>
 
WE BRING
LOYALTY
BACK TO
BANKING (PHOTO)

                                      11
<PAGE>
 
MD&A..............................................................  13

REPORT OF INDEPENDENT AUDITORS....................................  27

 
AUDITED FINANCIAL STATEMENTS

 
CONSOLIDATED STATEMENTS OF OPERATIONS.............................  28

CONSOLIDATED BALANCE SHEETS.......................................  29

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY...................  30

CONSOLIDATED STATEMENTS OF CASH FLOWS.............................  31

NOTES.............................................................  32

 
SUPPLEMENTAL FINANCIAL DATA (UNAUDITED)
 

CONSOLIDATED FIVE-YEAR STATEMENTS OF OPERATIONS...................  47

CONSOLIDATED FIVE-YEAR SUMMARY OF AVERAGE BALANCES AND
  NET INTEREST REVENUE............................................  48
 

CORPORATE DIRECTORY...............................................  50

SHAREHOLDER INFORMATION...........................................  51

BRANCH LOCATIONS..................................................  N/A

                                      12
<PAGE>
 
MANAGEMENT DISCUSSION AND ANALYSIS
OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

This discussion should be read in conjunction with the consolidated financial
statements of Columbia Banking System, Inc. (the "Company"), and notes thereto
presented elsewhere in this report. In the following discussion, unless
otherwise noted, references to increases or decreases in average balances in
items of income and expense for a particular period and balances at a particular
date refer to the comparison with corresponding amounts for the period or date
one year earlier.

  This discussion contains certain forward-looking statements within the meaning
of the federal securities laws. Actual results and the timing of certain events
could differ materially from those projected in the forward-looking statements
due to a number of factors. Specific factors include, among others, the effect
of interest rate changes, risk associated with acquiring other banks, or opening
and acquiring new branches, controlling expenses, and general economic
conditions.


OVERVIEW

Columbia Banking System, Inc., a Washington corporation, is a registered bank
holding company whose wholly owned subsidiary, Columbia State Bank ("Columbia
Bank"), conducts a full-service commercial banking business. Headquartered in
Tacoma, Washington, the Company serves small and medium-sized businesses,
professionals and other individuals through 25 banking offices located in the
Tacoma metropolitan area and contiguous parts of the Puget Sound region of
Washington, as well as the Longview and Woodland communities in southwestern
Washington. At December 31, 1998, the Company had total assets of $1.1 billion.

  The Company was reorganized and additional management was added in 1993 in
order to take advantage of commercial banking business opportunities resulting
from increased consolidation of banks in the Company's principal market area,
primarily through acquisitions by out-of-state holding companies, and the
resulting dislocation of customers. Since the reorganization, Columbia Bank has
grown from four branch offices at January 1, 1993 to its present 25 branch
offices and has regulatory approval to open three additional branch offices in
its market area. Between January 1, 1993 and December 31, 1998, the Company
increased its consolidated assets to $1.1 billion from $198.2 million, its loans
to $828.6 million from $146.2 million and its deposits to $938.3 million from
$151.9 million. Net interest income per year increased to $42.0 million from
$14.8 million and net income per year increased to $10.2 million from a loss of
$139,000 during the 5 year period ending December 31, 1998.

  The Company's sole subsidiary, Columbia Bank, is a Washington state-chartered
commercial bank, the deposits of which are insured by the Federal Deposit
Insurance Corporation (the "FDIC"). Columbia Bank is subject to regulation by
the FDIC and the Washington State Department of Financial Institutions, Division
of Banks (the "Division"). Although Columbia Bank is not a member of the Federal
Reserve System, the Board of Governors of the Federal Reserve System (the
"Federal Reserve Board") has certain supervisory authority over the Company,
which can also affect Columbia Bank.

  Management believes the ongoing consolidation among financial institutions in
Washington has created significant gaps in the ability of large banks operating
in Washington to serve certain customers, particularly the Company's target
customer base of small and medium-sized businesses, professionals and other
individuals. The Company's business strategy is to provide its customers with
the financial sophistication and breadth of products of a regional bank while
retaining the appeal and service level of a community bank. Management believes
that as a result of the Company's strong commitment to highly personalized
relationship-oriented customer service, its varied products, its strategic
branch locations and the long-standing community presence of its managers,
lending officers and branch personnel, it is well positioned to attract new
customers and to increase its market share of loans and deposits.

  The Company's goal over the next several years is to create a well-
capitalized, customer focused, Pacific Northwest banking institution with a
significant presence in selected markets. The Company intends to effect this
growth strategy through a combination of growth at existing branch offices, new
branch openings (usually following the hiring of an experienced branch manager
and/or lending officer with strong community ties and banking relationships) and
acquisitions. In particular, the Company anticipates continued expansion in
Pierce County, north into King County (the location of Auburn and Bellevue),
south into Thurston County (the location of the state capitol, Olympia) and
northwest into Kitsap County (the location of Bremerton and Port Orchard).
Expansion by acquisition into these and other markets will be considered as
promising opportunities arise. In order to fund its lending activities and to
allow for increased contact with customers, the Company is establishing a branch
system catering primarily to retail depositors, supplemented by business
customer deposits and other borrowings. The Company believes this mix of funding
sources will enable it to expand lending activities rapidly while attracting a
stable core deposit base. In order to support its strategy of growth, without
compromising its personalized banking approach or its commitment to asset
quality, the Company has made significant investments in experienced branch,
lending and administrative personnel and has incurred significant costs related
to its branch expansion. Although the Company's expense ratios have improved
since 1993, management anticipates that the ratios will remain relatively high
by industry standards for the foreseeable future due to the Company's aggressive
growth strategy and emphasis on convenience and personal service. Management is
placing increased emphasis on control of noninterest expense.

                                      13
<PAGE>
 
  During 1998, Columbia Bank opened four new branches. The Westgate branch in
north Tacoma opened in January and the 176th and Meridian branch in eastern
Pierce County opened in February. Both are newly constructed, full-service
facilities. In November, its fifteenth Pierce County location opened in the
Stadium district of Tacoma. Also, in November the Bank opened its fourth Cowlitz
County branch inside the Triangle Mall Thriftway store in Longview. The
Company's future plans include new locations in Pierce, King, Kitsap and
Thurston counties of western Washington. The Company currently has regulatory
approval to open three additional branches in its market area. Management
continues to pursue opportunities for expansion via a combination of internal
and external growth by acquisition. New branches normally do not contribute to
net income for many months after opening.

  The Company opened its twenty-sixth branch and first Kitsap County location in
mid-February 1999 in Port Orchard. Located just south of the port city of
Bremerton, Port Orchard is a fast growing residential community that provides
easy access for employees of the Bremerton Naval shipyard and the Trident
Submarine Base.

  In addition to its ongoing expansion, the Company continuously reviews new
products and services to give its customers more banking options. In addition,
new technology and services are reviewed for business development and cost
saving purposes. During the third quarter, the Company occupied a new state-of-
the-art Operations Center that will allow for substantial future growth.

  The economy of the Company's principal market area, while primarily dependent
upon aerospace, foreign trade and natural resources, including agriculture and
timber, has become more diversified over the past decade as a result of the
success of software companies such as Microsoft and the establishment of
numerous research and biotechnology firms. The Washington economy and that of
the Puget Sound region generally have experienced strong growth and stability in
recent years. The Pierce County Economic Index, a regional publication providing
economic forecasts and commentary, reports that "Five years after it started in
late 1992, the Pierce County economy continued its growth through the first half
of 1998. The local economy has grown at an average rate of just under 2.5%,
that's 0.5% above the long-term historical growth rate. The outlook is for some
cooling off and slower growth over the six quarters from the second half of 1998
through 1999." In the third quarter of 1998 the Company was named in the Fortune
magazine annual ranking of America's 100 fastest growing companies as judged by
earnings growth. The Company was the only banking company on the list and was
ranked 82/nd/.


RESULTS OF OPERATIONS

The results of operations of the Company are dependent to a large degree on the
Company's net interest income. The Company also generates noninterest income
through service charges and fees and income from mortgage banking operations.
The Company's operating expenses consist primarily of compensation and employee
benefit expense, occupancy expense, and merchant services and bank card
expenses. Like most financial institutions, the Company's interest income and
cost of funds are affected significantly by general economic conditions,
particularly changes in market interest rates, and by government policies and
actions of regulatory authorities.

  For 1998, the Company recorded net income of $10.2 million, compared with net
income of $9.3 million in 1997 and net income of $4.6 million in 1996. On a
diluted per share basis, net income for 1998 was $0.98 per share, compared with
$0.91 per share in 1997, and $0.63 per share in 1996.

  Excluding certain unusual items which occurred in 1997 and 1996, net income
was $10.2 million in 1998, compared with net income of $8.2 million in 1997, and
$5.2 million in 1996, increases of 25% and 58% for the years ended December 31,
1998 and 1997, respectively. On a diluted per share basis, 1998 net income was
$0.98 per share compared with net income excluding unusual items of $0.80 per
share in 1997, and $0.71 per share in 1996.

  The 1997 unusual items consisted of proceeds from a Key Man Life Insurance
policy upon the passing of Chairman A.G. Espe and expenses associated with two
completed mergers. Also, excluded was an additional loan loss provision made in
the fourth quarter to reflect increased credit risk and portfolio growth during
1997. In the third quarter 1996, federal legislation designed to recapitalize
the Savings Association Insurance Fund ("SAIF") of the FDIC resulted in a one-
time charge to earnings of $612,000.

  The Company completed its first bank acquisitions during the fourth quarter of
1997, merging Cascade Community Bank and Bank of Fife into Columbia Bank. The
mergers were accounted for on a pooling-of-interest basis, and Company financial
statements for all reported periods have been restated to reflect the mergers.

NET INTEREST INCOME  Net interest income increased $6.7 million, or 19%, in 1998
compared with $9.9 million, or 39%, in 1997. The 1998 increase in net interest
income was largely due to the overall growth of the Company. Net interest income
was favorably affected by average interest-earning assets increasing more
rapidly than average interest-bearing liabilities, with the difference funded by
noninterest-bearing deposits and shareholders' equity. Average interest-earning
assets increased $151.7 million and $156.5 million in 1998 and 1997,
respectively, while average interest-bearing liabilities increased only
$116.9 million and $111.8 million, respectively.

  Net interest margin (net interest income divided by average interest-earning
assets) decreased to 4.87% for 1998, compared with 4.96% in 1997 and 4.58% in
1996. While interest-earning assets grew during 1998, the average yield on
interest-earning assets decreased to 8.54%, from 8.73% in 1997. In comparison,
the average cost of interest-bearing liabilities decreased to 4.53% in 1998 from
4.61% in 1997. The decrease in net interest margin is primarily due to
decreasing interest rates and to deposit growth exceeding loan growth with
consequent investments in lower

                                      14
<PAGE>
 
yielding assets. Competition and declining interest rates have caused loan
yields to decline to a greater degree than corresponding decreases in deposit
and borrowing costs, causing the net interest margin to decrease. Interest rates
in general have exhibited a downward trend during 1998 due to a variety of
economic factors, including slowing of economic growth and low inflation.

PROVISION FOR LOAN LOSSES  For the years ended December 31, 1998, 1997 and 1996,
net loan charge-offs amounted to $1.3 million, $1.6 million and $693,000,
respectively. The Company's provision for loan losses was $1.9 million for 1998,
compared with $4.7 million for 1997 and $1.6 million for 1996. During 1998, the
allowance for loan losses increased $562,000 to $9.0 million as compared with
$8.4 million and $5.3 million at the end of 1997 and 1996, respectively. The
allowance for loan losses as a percentage of loans (excluding loans held for
sale at each date) decreased to 1.09% at December 31, 1998 as compared to 1.23%
and 1.01% of loans at December 31, 1997 and 1996, respectively. At year-end
1998, the allowance for loan losses to nonperforming loans was 167.14% compared
to 569.50% and 231.57% at December 31, 1997 and 1996, respectively.

NONINTEREST INCOME  Total noninterest income, excluding proceeds from a Key Man
Life Insurance policy, increased $2.7 million, or 29%, in 1998, and $3.0
million, or 47%, in 1997. Increases in noninterest income during 1998 were
centered in account service charges, merchant services and mortgage banking
income. In general, increases in account service charges and merchant services
are due to the growth of the Company, and increases in mortgage banking income
reflect a greater volume of residential real estate loan originations due to
lower long term interest rates, as compared with the year ended December 31,
1997.

NONINTEREST EXPENSE  Excluding nonrecurring items (merger expense in 1997 and
SAIF assessment in 1996), total noninterest expense increased $6.6 million, or
22.0%, in 1998 and $5.7 million, or 23.5%, in 1997. The increase was primarily
due to personnel costs associated with the Company's expansion as well as
occupancy, merchant services and bank card, advertising, and other expenses. The
Company's efficiency ratio (noninterest expense, excluding unusual and
nonrecurring items, divided by the sum of net interest income plus noninterest
income, excluding unusual and nonrecurring items) was 67.8% for 1998 compared
with 69.0% and 76.7% for 1997 and 1996, respectively. A portion of compensation
expense related to loan originations is deferred and deducted from interest
income over the life of the related loans. Other categories of expense are
volume driven and reflect the Company's rapid growth. Total noninterest expense
for the Company is expected to decline in relation to revenues as the Company's
asset base grows.

  Set forth below is a schedule showing additional detail concerning increases
and decreases in the Company's noninterest expense.
<TABLE>
<CAPTION>
 
YEAR ENDED DECEMBER 31,                            INCREASE/             INCREASE/
(IN THOUSANDS)                            1998     (DECREASE)   1997     (DECREASE)  1996
<S>                                    <C>        <C>         <C>      <C>         <C>
Compensation and employee benefits       $17,925    $ 2,669   $15,256     $2,671   $12,585
   Less: loan origination costs            2,109        182     1,927       (373)    2,300
- ------------------------------------------------------------------------------------------ 
Net compensation and
    employee benefits (as reported)       15,816      2,487    13,329      3,044    10,285
Occupancy                                  5,215        727     4,488        240     4,248
Professional services                        951        353       598        (73)      671
Advertising and promotion                  1,848        584     1,264        458       806
Printing and supplies                        688        (51)      739        192       547
Regulatory assessments                       198        (47)      245        (97)      342
Data processing                            1,731        187     1,544        322     1,222
Losses on real estate owned                   62        (62)      124        124
Telephone and network                        465        (35)      500        127       373
Postage & delivery                           473        (58)      531        175       356
ATM network                                  281         60       221         12       209
Merchant services and bank card            3,308      1,314     1,994        513     1,481
Taxes, licenses and fees                   1,320        330       990        202       788
Other                                      4,247        814     3,433        468     2,965
SAIF special assessment                                                     (612)      612
Merger expenses                                      (1,234)    1,234      1,234
- ------------------------------------------------------------------------------------------ 
    Total noninterest expense            $36,603    $ 5,369   $31,234     $6,329   $24,905
==========================================================================================
</TABLE>

                                      15
<PAGE>
 
CREDIT RISK MANAGEMENT

The extension of credit in the form of loans to individuals and businesses is a
major portion of the Company's principal business activity. Company policies and
applicable laws and regulations require risk analysis as well as ongoing
portfolio and credit management. The Company manages its credit risk through
lending limit constraints, credit review, approval policies and extensive,
ongoing internal monitoring. The Company also manages credit risk through
diversification of the loan portfolio by type of loan, type of industry,
aggregation of debt limits to a single borrower and the type of borrower.

  In analyzing its existing portfolio, the Company reviews its consumer and
residential loan portfolios by risk rating each loan and analyzing their
performance as a pool of loans since no single loan is individually significant,
judged by its risk rating size or potential risk of loss. In contrast, the
monitoring process for the commercial business, real estate construction, and
commercial real estate portfolios includes periodic reviews of individual loans
with risk ratings assigned to each loan and performance judged on a loan by loan
basis. The Company reviews these loans to assess the ability of the borrower to
service all of its interest and principal obligations and as a result the risk
rating may be adjusted accordingly. In the event that full collection of
principal and interest is not reasonably assured, the loan is appropriately
downgraded and, if warranted, placed on nonaccrual status even though the loan
may be current as to principal and interest payments.

  Loan policies, credit quality criteria, portfolio guidelines and other
controls are established under the guidance of the Company's Senior Credit
Officer and approved, as appropriate, by the Board. Credit Administration,
together with appropriate loan committees, has the responsibility for
administering the credit approval process. As another part of its control
process, the Company uses an independent internal credit review and examination
function to provide assurance that loans and commitments are made and maintained
as prescribed by its credit policies. This includes a review of documentation
when the loan is initially extended and subsequent examination to ensure
continued performance and proper risk assessment.


LENDING ACTIVITIES

The Company is a full service commercial bank, which originates a wide variety
of loans. Consistent with the trend begun in 1993, the Company continues to have
success originating commercial business and commercial real estate loans.

The following table sets forth the Company's loan portfolio by type of loan for
the dates indicated:
<TABLE>
<CAPTION>
 
(IN THOUSANDS)                                   % OF               % OF               % OF
DECEMBER 31,                           1998     TOTAL     1997     TOTAL     1996     TOTAL
<S>                                  <C>        <C>     <C>        <C>     <C>        <C>
Commercial business                  $332,638    40.1%  $270,946    39.5%  $194,843    37.2%
Real estate:
 One- to four-family residential       61,132     7.4     71,095    10.4     77,359    14.8
Five or more family residential
   and commercial properties          291,868    35.2    206,628    30.1    151,179    28.9
- ------------------------------------------------------------------------------------------- 
   Total real estate                  353,000    42.6    277,723    40.5    228,538    43.7
Real estate construction:
 One- to four-family residential       26,444     3.2     29,695     4.3     31,446     6.0
 Five or more family residential
   and commercial properties           23,213     2.8     33,806     4.9     10,724     2.1
- ------------------------------------------------------------------------------------------- 
   Total real estate construction      49,657     6.0     63,501     9.2     42,170     8.1
Consumer                               94,572    11.4     74,710    10.9     58,249    11.1
- ------------------------------------------------------------------------------------------- 
 Subtotal                             829,867   100.1    686,880   100.1    523,800   100.1
Less deferred loan fees and other      (1,228)   (0.1)      (991)   (0.1)      (649)   (0.1)
- ------------------------------------------------------------------------------------------- 
 
 Total loans                         $828,639   100.0%  $685,889   100.0%  $523,151   100.0%
=========================================================================================== 
Loans held for sale                  $ 10,023           $  4,377           $ 11,341
===================================================================================
</TABLE>

  Total loans at year-end increased $142.8 million, or 20.8%, from year-end
1997. All loan categories except for one- to four-family residential and real
estate construction loans contributed significantly to the increase.

  Commercial loans increased to $332.6 million at December 31, 1998,
representing 40.1% of total loans, from

                                      16
<PAGE>
 
$270.9 million, or 39.5% of total loans, at December 31, 1997. This increase
reflects management's ongoing commitment to provide competitive commercial
lending in the Company's primary market areas. The Company expects to continue
to expand its commercial lending products and to emphasize in particular its
relationship banking with businesses, business owners and professional
individuals.

  Residential one- to four-family loans decreased $10.0 million to $61.1 million
at December 31, 1998, representing 7.4% of total loans, compared with $71.1
million, or 10.4% of total loans, at December 31, 1997. The decrease is
attributable to maturities and prepayments of the portfolio. These loans are
used by the Company to collateralize advances from the FHLB. The Company's
underwriting standards require that one- to four-family portfolio loans
generally be owner-occupied and that loan amounts not exceed 80% (90% with
private mortgage insurance) of the appraised value or cost, whichever is lower,
of the underlying collateral at origination. Generally, management's policy is
to originate for sale to third parties residential loans secured by properties
located within the Company's primary market areas.

  The Company makes multi-family and commercial real estate loans in its primary
market areas. Multi-family and commercial real estate lending increased to
$291.9 million at December 31, 1998, representing 35.2% of total loans, from
$206.6 million, or 30.1% of total loans, at December 31, 1997. The Company's
underwriting standards generally require that the loan-to-value ratio for multi-
family and commercial loans not exceed 75% of appraised value or cost, whichever
is lower, and that commercial properties maintain debt coverage ratios (net
operating income divided by annual debt servicing) which management considers
adequate. Underwriting standards can be influenced by competition. The Company
endeavors to maintain the highest practical underwriting standards while
balancing the need to remain competitive in its lending practices.

  The Company originates a variety of real estate construction loans. One- to
four-family residential construction loans are originated for the construction
of custom homes (where the home buyer is the borrower) and provides financing to
builders for the construction of pre-sold homes and speculative residential
construction. Construction loans on one- to four-family residences decreased to
$26.4 million at December 31, 1998, representing 3.2% of total loans, from $29.7
million, or 4.3% of total loans at December 31, 1997. Multi-family and
commercial real estate construction loans decreased to $23.2 million at December
31, 1998, representing 2.8% of total loans, from $33.8 million, or 4.9% of total
loans, at December 31, 1997. The decrease is a result of growing competition
fueled in part by declining interest rates during 1998 as well as management's
intention to focus on commercial loans.

  The Company endeavors to limit its construction lending risk through adherence
to strict underwriting procedures.

  At December 31, 1998, the Company had $94.6 million of consumer loans
outstanding, representing 11.4% of total loans, as compared with $74.7 million,
or 10.9% of total loans, at December 31, 1997. Consumer loans made by the
Company include automobile loans, boat and recreational vehicle financing, home
equity and home improvement loans and miscellaneous personal loans.

  At December 31, 1998, the Company had no loans to foreign domiciled businesses
or foreign countries, or loans related to highly leveraged transactions.

  Management's growth strategy to date has concentrated on the Tacoma/Pierce
County market. The results of that strategy are evident in the following summary
of loan growth by market area. Management has recently turned its attention to
growth in Thurston County, south King County and the Bellevue/Eastside areas.

<TABLE>
<CAPTION>
 
(IN THOUSANDS)                                                         INCREASE           
DECEMBER 31,                                         1998      1997     AMOUNT   PERCENT  
<S>                                                <C>       <C>       <C>       <C>      
                                                                                          
Pierce County                                      $619,688  $485,863  $133,825     27.5% 
All other counties                                  208,951   200,026     8,925      4.5  
- ----------------------------------------------------------------------------------------  
 Total                                             $828,639  $685,889  $142,750     20.8% 
========================================================================================   
</TABLE>

NONPERFORMING ASSETS

Nonperforming assets consist of: (i) nonaccrual loans, which are loans placed on
a nonaccrual basis generally when the loan becomes past due 90 days or when
there are otherwise serious doubts about the collectibility of principal or
interest; (ii) restructured loans, for which concessions, including the
reduction of interest rates below a rate otherwise available to that borrower or
the deferral of interest or principal, have been granted due to the borrower's
weakened financial condition (interest on restructured loans is accrued at the
restructured rates when it is anticipated that no loss of original principal
will occur); and (iii) accruing loans which are contractually past due ninety
days or more as to interest or principal payments. Potential problem loans are
loans which are currently performing and are not included in nonaccrual or
restructured loans, but about which there are serious doubts as to the
borrower's ability to comply with present repayment terms and which may later be
included in nonaccrual, past due or restructured loans.

                                      17
<PAGE>
  The following tables set forth, at the dates indicated, information with
respect to nonaccrual loans, restructured loans, total nonperforming loans
(nonaccrual loans plus restructured loans), real estate owned, total
nonperforming assets, accruing loans past-due 90 days or more and potential
problem loans of the Company:
<TABLE>
<CAPTION>
 
(IN THOUSANDS)
DECEMBER 31,                                      1998     1997     1996
<S>                                              <C>      <C>      <C>
Nonaccrual:
 One- to four-family residential                 $  722   $  661   $1,645
 Commercial real estate                           1,542
 Commercial business                              1,214      728      385
 Consumer                                           125       73      226
- -------------------------------------------------------------------------
   Total                                          3,603    1,462    2,256
Restructured:
 One- to-four-family residential                     15       20       25
 One- to-four-family residential construction     1,768
- -------------------------------------------------------------------------
   Total                                          1,783       20       25
 
   Total nonperforming loans                     $5,386   $1,482   $2,281
=========================================================================
Real estate owned                                   901      231      484
- -------------------------------------------------------------------------
   Total nonperforming assets                    $6,287   $1,713   $2,765
=========================================================================
Accruing loans past due 90 days or more          $   40            $  111
Impaired loans                                    2,756   $  728      385
Potential problem loans                           1,862      669      346
Allowance for loan losses                         9,002    8,440    5,282
Nonperforming loans to loans                       0.65%    0.22%    0.44%
Nonperforming assets to total assets               0.59     0.20     0.39
=========================================================================
</TABLE>

  The consolidated financial statements are prepared according to the accrual
basis of accounting. This includes the recognition of interest income on the
loan portfolio, unless a loan is placed on a nonaccrual basis, which occurs when
there are serious doubts about the collectibility of principal or interest. The
policy of the Company generally is to discontinue the accrual of interest on all
loans past due 90 days or more and place them on nonaccrual status.

  Impaired loans, generally, refer to non-homogeneous loans that are
restructured in a troubled debt restructuring involving a modification of terms,
nonaccrual loans and loans past due 90 days and still accruing.

  Nonperforming loans increased to $5.4 million, or 0.65% of total loans
(excluding loans held for sale), at December 31, 1998, from $1.5 million, or
0.22% of total loans at December 31, 1997 due principally to increases in the
commercial business, commercial real estate, and residential construction loan
categories.

  The increase in nonaccrual loans and other nonperforming assets is centered in
a small number of lending relationships which management considers to be
adequately reserved. All nonperforming loans are to Washington businesses.

  Real estate owned, which is comprised of foreclosed real estate loans ("REO"),
increased to $901,000 at December 31, 1998, from $231,000 at December 31, 1997.
During 1998, the Company foreclosed on $1.0 million of loans collateralized by
real estate and transferred the real estate to REO. Also, the Company reduced
REO by $343,000, with proceeds of $308,000 from sales and net losses on sales of
$35,000. At year-end 1998, REO consisted of two foreclosed properties.

  Total nonperforming assets increased to $6.3 million, or 0.59% of period-end
assets at December 31, 1998, from $1.7 million, or 0.20% of period-end assets at
December 31, 1997.


PROVISION AND ALLOWANCE FOR LOAN LOSSES

The Company maintains an allowance for loan losses to absorb losses inherent in
the loan portfolio. The size of the allowance is determined through quarterly
assessments of the probable estimated losses in the loan portfolio. The
Company's methodology for making such assessments and determining the adequacy
of the allowance includes the following key elements:

 1. Formula based allowances calculated on minimum thresholds and historical
    performance of the portfolio for the past five years
 2. Specific allowances for identified problem loans and/or portfolio segments
 3. Unallocated allowance

                                      18
<PAGE>
 
  In addition, the allowance incorporates the results of measuring impaired
loans as provided in the Statement of Financial Standards ("SFAS") No. 114,
"Accounting by Creditors for Impairment of a Loan", and SFAS No. 118, which
amended SFAS No. 114.  These accounting standards prescribe the measurement
methods, income recognition and disclosures concerning impaired loans.

  On a quarterly basis (semi-annual in the case of economic and business
conditions reviews) the senior credit officers of the Company review with
Executive Management and the Board of Directors the various additional factors
that management considers when determining the adequacy of the allowance. These
factors include the following as of the applicable balance sheet date:

 1. Existing general economic and business conditions affecting the Company's
    market place
 2. Credit quality trends, including trends in nonperforming loans
 3. Collateral values
 4. Seasoning of the loan portfolio
 5. Bank regulatory examination results
 6. Findings of internal credit examiners
 7. Duration of current business cycle

  The allowance is increased by provisions charged to operations, and is reduced
by loans charged off, net of recoveries. While management believes it uses the
best information available to determine the allowance for loan losses,
unforeseen market conditions could result in adjustments to the allowance, and
net income could be significantly affected, if circumstances differ
substantially from the assumptions used in determining the allowance.

  At December 31, 1998, the Company's allowance for loan losses was $9.0
million, or 1.09% of the total loan portfolio, and 167% of nonperforming loans.
This compares with an allowance of $8.4 million, or 1.23% of the total loan
portfolio, and 570% of nonperforming loans, at December 31, 1997.  During the
year ended December 31, 1998, the Company set aside $1.9 million as a provision
for loan losses as compared with $4.7 million during 1997.  For the years ended
December 31, 1998, 1997 and 1996, net loan charge-offs amounted to $1.3 million,
$1.6 million, and $693,000, respectively.

  During 1998, there were no changes in estimation methods or assumptions that
affected the Company's methodology for assessing the appropriateness of the
allowance, except that certain changes in assumptions regarding the effect of
portfolio maturity and of economic and business conditions on borrowers affected
the assessment of the appropriate provision for the year 1998.  In 1997
management concluded that loss potential had increased in the loan portfolio as
a result of average annual growth in the portfolio of approximately 31% since
1993 combined with indications of a business downturn resulting from the effect
of global economic conditions from the Asian financial crisis and, in
particular, potential adverse effects on the aerospace, foreign trade and timber
industries.  This judgement was made despite the absence of a manifested
increase in nonaccrual loans or nonperforming assets but after considering the
additional factors management considers when determining the adequacy of the
allowance, as discussed above.  Thus management substantially increased the
provision in 1997 to reserve for such loss potential.

  During 1998, nonperforming loan levels did rise significantly but the reasons
for the increase were determined by management to be a reflection of the
maturing of the portfolio rather than problems in the aerospace, foreign trade
and timber industries.  Those borrowers who were downgraded to nonperforming
status received close supervision by the Bank with the objective of seeing
substantial improvement in performance or elimination from the portfolio by
refinancing outside the Bank or other means. Progress in improving their
condition was made by several borrowers during 1998. Also, the stability of
other borrowers despite the downturn convinced management that a similarly large
provision in 1998 was not required.  Thus the 1998 provision was reduced to an
amount which did not anticipate further significant deterioration in the quality
of the loan portfolio.  Further, management has determined that, absent an
unanticipated decline in credit quality, the provision in 1999 will be
maintained at an amount which holds the allowance in a range of 1.00% to 1.20%
of average outstanding loans, in line with industry norms.

                                      19
<PAGE>
 
 The following table provides an analysis of net losses by loan type for the
last five years.
<TABLE>
<CAPTION>
(DOLLARS IN THOUSANDS)
December 31,                                          1998       1997       1996       1995       1994   
<S>                                                 <C>        <C>        <C>        <C>        <C>
 
Total loans, net at end of period /(1)/             $828,639   $685,889   $523,151   $418,057   $318,075
Daily average loans                                  748,587    613,671    473,887    373,560    264,761
- -------------------------------------------------------------------------------------------------------- 
Balance of allowance for loan
 losses at beginning of period                      $  8,440   $  5,282   $  4,340   $  3,175   $  2,354
Charge-offs:
 One- to four-family residential                         (57)      (364)        (7)
 Commercial business                                  (1,195)    (1,025)      (514)      (148)      (258)
 Consumer                                               (333)      (270)      (199)      (119)      (111)
- ---------------------------------------------------------------------------------------------------------
   Total charge-offs                                  (1,585)    (1,659)      (720)      (267)      (369)
Recoveries:
 One- to four-family residential                                      1          7
 Commercial business                                     175         43         17         45         83
 Consumer                                                 72         47          3          5
- ---------------------------------------------------------------------------------------------------------
   Total recoveries                                      247         91         27         50         83
     Net charge-offs                                  (1,338)    (1,568)      (693)      (217)      (286)
Provision charged to expense                           1,900      4,726      1,635      1,382      1,107
- ---------------------------------------------------------------------------------------------------------
 Balance of allowance for loan losses
   at end of period                                 $  9,002   $  8,440   $  5,282   $  4,340   $  3,175
=========================================================================================================
Net charge-off to average loans outstanding             0.18%      0.26%      0.15%      0.06%      0.11%
Allowance for loan losses to loans                      1.09       1.23       1.01       1.04       1.01
Allowance for loan losses to nonperforming loans      167.14     569.50     231.57     907.95     640.12
=========================================================================================================
/(1)/ Excludes loans held for sale
</TABLE>

SECURITIES
The Company's securities (securities available for sale and securities held to
maturity) increased by $34.1 million to $100.1 million from year-end 1997 to
year-end 1998.  The Company had no sales of securities during 1998.  Purchases
during the year totaled $92.9 million while maturities and prepayments totaled
$59.0 million.  U.S. Treasury and government agency securities comprise 82.5% of
the investment portfolio, with mortgage-backed securities at 10.7% and state and
municipal securities at 5.1%.  The average maturity of the securities portfolio
was 5 years, 10 months at December 31, 1998.

  Approximately 93.6% of the Company's securities are classified as available
for sale and carried at market value.  These securities are used by management
as part of its asset/liability management strategy and may be sold in response
to changes in interest rates and/or significant prepayment risk.  For further
information on investment securities, including gross unrealized gains and
losses in the portfolio and gross realized gains and losses on sales of
securities, see Note 5 to the consolidated financial statements.


PREMISES AND EQUIPMENT
In 1998, fixed assets increased $9.8 million, or 36% from 1997.  The net change
includes purchases of $12.5 million, disposals of $54,000 and depreciation
expense of $2.6 million.  The Company's capital expenditures in 1999 are
anticipated to be approximately $2.1 million.  Such expenditures are expected to
include approximately $1.6 million for new buildings and for remodeling existing
structures, and $500,000 for new furniture and equipment.


LIQUIDITY AND SOURCES OF FUNDS
The Company's primary sources of funds are customer deposits and advances from
the FHLB. These funds, together with loan repayments, loan sales, retained
earnings, equity and other borrowed funds, are used to make loans, to acquire
securities and other assets, and to fund continuing operations.

                                      20
<PAGE>
 
DEPOSIT ACTIVITIES
The Company experienced overall average deposit growth of 24.0% and 29.3% in
1998 and 1997, respectively. All categories of deposits increased during both
years. The average interest-bearing and noninterest-bearing demand deposits
increased 28.4% and 34.0% in 1998, and 39.7% and 48.8% in 1997, respectively.

Average deposits are summarized in the following table:
<TABLE>
<CAPTION>
 
(IN THOUSANDS)
YEARS ENDED DECEMBER 31,                  1998      1997      1996
<S>                                     <C>       <C>       <C>
Demand and other noninterest-bearing    $149,353  $111,492  $ 74,940
Interest-bearing demand                  287,007   223,514   160,020
Savings                                   39,768    38,301    32,438
Certificates of deposit                  337,557   282,899   240,214
 Total average deposits                 $813,685  $656,206  $507,612
====================================================================
</TABLE>

  The Company is establishing a branch system catering primarily to retail
depositors, supplemented by business customer deposits and other borrowings.
While that stable core deposit base is being established, management's strategy
for funding growth has been to make use of brokered and other wholesale
deposits. During 1998, total deposits increased $197.9 million to $938.3 million
at December 31, 1998. The increase occurred primarily in "core deposits".
Brokered and other wholesale deposits (excluding public deposits) increased $3.8
million to $7.3 million, or 0.78% of total deposits, at December 31, 1998, from
$3.5 million, or 0.47% of total deposits, at December 31, 1997.

  Brokered and other wholesale deposits are summarized below.  The average
interest rate for these deposits was 5.59% and 5.77% at December 31, 1998 and
1997, respectively.
<TABLE>
<CAPTION>
December 31,                                               1998               1997
(dollars in thousands)                                        PERCENT             PERCENT
                                                              OF TOTAL            OF TOTAL
                                                     AMOUNT   DEPOSITS  AMOUNT    DEPOSITS
<S>                                               <C>       <C>       <C>         <C>
Maturing within one year                            $2,000     0.21%    $1,486     0.20%
Maturing after one year but within three years       5,327     0.57      2,000     0.27
- ----------------------------------------------------------------------------------------
 Total brokered and other wholesale deposits        $7,327     0.78%    $3,486     0.47%
========================================================================================
 </TABLE>

The increase in deposits is largely due to management's growth strategy
emphasizing the Tacoma/Pierce County market area.  Following is a summary of
year-end deposits by county:

<TABLE>
<CAPTION>
 
(IN THOUSANDS)                            INCREASE
DECEMBER 31,            1998      1997     AMOUNT   PERCENT
<S>                   <C>       <C>       <C>       <C>
Pierce County         $678,019  $505,212  $172,807     34.2%
All other counties     260,326   235,218    25,108     10.7
- ------------------------------------------------------------
 Total                $938,345  $740,430  $197,915     26.7%
============================================================
</TABLE>

BORROWINGS
The Company relies on FHLB advances to supplement its funding sources, and the
FHLB serves as the Company's primary source of long-term borrowing.  FHLB
advances are secured by one- to four-family real estate mortgages and certain
other assets.  At December 31, 1998, the Company had one advance of  $25.0
million at an interest rate of 5.39%.  At December 31, 1998 the maximum
borrowing line from the FHLB was $123.1 million.  Management anticipates that
the Company will continue to rely on the same sources of funds in the future,
and will use those funds primarily to make loans and purchase securities.

                                      21
<PAGE>
INTEREST RATE SENSITIVITY
Columbia Bank is exposed to interest rate risk, which is the risk that changes
in prevailing interest rates will adversely affect assets, liabilities, capital,
income and expenses at different times or in different amounts.  Generally,
there are four sources of interest rate risk as described below:

REPRICING RISK    Generally, repricing risk is the risk of adverse consequences
from a change in interest rates that arises because of differences in the timing
of when those interest rate changes affect an institution's assets and
liabilities.

BASIS RISK    Basis risk is the risk of adverse consequence resulting from
unequal changes in the spread between two or more rates for different
instruments with the same maturity.

YIELD CURVE RISK    Yield curve risk is the risk of adverse consequence
resulting from unequal changes in the spread between two or more rates for
different maturities for the same instrument.

OPTION RISK    In banking, option risks are known as borrower options to prepay
loans and depositor options to make deposits, withdrawals, and early
redemptions.  Option risk arises whenever bank products give customers the
right, but not the obligation, to alter the quantity or the timing of cash
flows.

  The Company maintains an asset/liability management policy that provides
guidelines for controlling exposure to interest rate risk.  The guidelines
direct management to assess the impact of changes in interest rates upon both
earnings and capital. The guidelines further provide that in the event of an
increase in interest rate risk beyond preestablished limits, management will
consider steps to reduce interest rate risk to acceptable levels.

  The analysis of an institution's interest rate gap (the difference between the
repricing of interest-earning assets and interest-bearing liabilities during a
given period of time) is one standard tool for the measurement of the exposure
to interest rate risk. The Company believes that because interest rate gap
analysis does not address all factors that can affect earnings performance, it
should be used in conjunction with other methods of evaluating interest rate
risk.

  The following table sets forth the estimated maturity or repricing, and the
resulting interest rate gap of the Company's interest-earning assets and
interest-bearing liabilities at December 31, 1998. The amounts in the table are
derived from the Company's internal data and are based upon regulatory reporting
formats. Therefore, they may not be consistent with financial information
appearing elsewhere herein that has been prepared in accordance with generally
accepted accounting principles. The amounts could be significantly affected by
external factors such as changes in prepayment assumptions, early withdrawal of
deposits and competition. For example, although certain assets and liabilities
may have similar maturities or periods to repricing, they may react in different
degrees to changes in market interest rates. Also, the interest rates on certain
types of assets and liabilities may fluctuate in advance of changes in market
interest rates, while other types may lag behind changes in market interest
rates. Additionally, certain assets, such as adjustable-rate mortgages, have
features which restrict changes in the interest rates of such assets both on a
short-term basis and over the lives of such assets. Further, in the event of a
change in market interest rates, prepayment and early withdrawal levels could
deviate significantly from those assumed in calculating the tables. Finally, the
ability of many borrowers to service their adjustable-rate debt may decrease in
the event of a substantial increase in market interest rates.
 
                                      22
<PAGE>
 
<TABLE>
<CAPTION>
                                                               ESTIMATED MATURITY OR REPRICING
                                                               -------------------------------
<S>                                     <C>        <C>        <C>               <C>              <C>         <C>
(DOLLARS IN THOUSANDS)                       0-3       4-12               1-5             5-10   MORE THAN
DECEMBER 31, 1998                         MONTHS     MONTHS             YEARS            YEARS    10 YEARS        TOTAL
 
INTEREST-EARNING ASSETS
Interest-earning deposits               $ 22,816                                                             $   22,816
Securities                                 8,191   $  3,653          $ 38,966         $ 45,814    $  9,010      105,634
Loans:
 Business and commercial
   real estate                           284,040     23,665           172,913           24,245       2,233      507,096
 
 One- to four-family and owner-
   occupied residential real estate       76,512     56,027            75,463            8,931      10,021      226,954
 
 Consumer                                 32,634     31,533            30,290            6,264         683      101,404
- -----------------------------------------------------------------------------------------------------------------------
 Total interest-earning assets          $424,193   $114,878          $317,632         $ 85,254    $ 21,947   $  963,904
=======================================================================================================================
Noninterest-earning assets                            3,207                                         92,808       96,015
- -----------------------------------------------------------------------------------------------------------------------
 Total assets                           $424,193   $118,085          $317,632         $ 85,254    $114,755   $1,059,919
=======================================================================================================================
Percent of total interest-
 earning assets                            44.01%     11.92%            32.95%            8.84%       2.28%      100.00%
=======================================================================================================================
 
INTEREST-BEARING LIABILITIES
Deposits:
 Money market checking                  $267,372                                                             $  267,372
 NOW accounts                             18,286                     $ 73,144                                    91,430
 Savings accounts                         14,447                                      $ 14,447    $ 14,447       43,341
 Time certificates of deposit            130,007   $183,668            43,489                                   357,164
FHLB advances                                                          25,000                                    25,000
- -----------------------------------------------------------------------------------------------------------------------
 Total interest-bearing liabilities     $430,112   $183,668          $141,633         $ 14,447    $ 14,447   $  784,307
=======================================================================================================================
Noninterest-bearing liabilities
 and equity                              143,230                       35,808                       96,574      275,612
=======================================================================================================================
 
 Total liabilities and equity           $573,342   $183,668          $177,441         $ 14,447    $111,021   $1,059,919
=======================================================================================================================
Percent of total interest-
 earning assets                            44.62%     19.06%            14.69%            1.50%       1.50%       81.37%
=======================================================================================================================
Rate sensitivity gap                    $ (5,919)  $(68,790)         $175,999         $ 70,807    $  7,500   $  179,597
Cumulative rate sensitivity gap           (5,919)   (74,709)          101,290          172,097     179,597
- -----------------------------------------------------------------------------------------------------------------------
Rate sensitivity gap as a percentage
 of interest-earning assets               (0.61)%    (7.14)%            18.26%            7.34%       0.78%       18.63%
Cumulative rate sensitivity gap
 as a percentage of interest-
 earning assets                           (0.61)%    (7.75)%            10.51%           17.85%      18.63%
=======================================================================================================================
</TABLE>

INTEREST RATE SENSITIVITY ON NET INTEREST INCOME

A number of measures are used to monitor and manage interest rate risk,
including income simulations and interest sensitivity (gap) analyses. An income
simulation model is the primary tool used to assess the direction and magnitude
of changes in net interest income resulting from changes in interest rates. Key
assumptions in the model include prepayment speeds on certain assets, cash flows
and maturities of other investment securities, loan and deposit volumes and
pricing. These assumptions are inherently uncertain and, as a result, the model
cannot precisely estimate net interest income or precisely predict the impact of
higher or lower interest rates on net interest income. Actual results will
differ from simulated results due to timing, magnitude and frequency of interest
rate changes and changes in market conditions and management strategies, among
other factors.

  Based on the results of the simulation model as of December 31, 1998, the
Company would expect an increase in net interest income of $470,000 and a
decrease in net interest income of $461,000 if interest rates gradually decrease
or increase, respectively, from current rates by 100 basis points over a twelve-
month period. Similarly, based on the results of the simulation model as of
December 31, 1997, the Company would expect an increase in net interest income
of $332,000 and a decrease in net interest income of $333,000 if interest rates
gradually decrease or increase, respectively, from the then current rates by 100
basis points over a twelve-month period.

                                      23
<PAGE>

INCOME TAX

Prior to December 31, 1996, for federal income tax purposes, the Company had net
operating loss ("NOL") carryforwards. The carryforwards were used, subject to
certain restrictions and limitations, to offset taxable income and the tax
liability of the Company. At December 31, 1996, all available NOL carryforwards
had been utilized to offset taxable income and the Company is now fully taxable.

  For the years ending December 31, 1998 and 1997, the Company recorded income
tax provisions of $5.2 million and $2.8 million, respectively.

CAPITAL

Shareholders' equity increased to $89.6 million at December 31, 1998, from $78.4
million at December 31, 1997. The increase is due primarily to net income for
the year of $10.2 million. Shareholders' equity was 8.45% and 9.06% of total
assets at December 31, 1998 and December 31, 1997, respectively.

  Banking regulations require bank holding companies to maintain a minimum
"leverage" ratio of core capital to adjusted quarterly average total assets of
at least 3%. At December 31, 1998, the Company's leverage ratio was 8.72%,
compared with 9.33% at December 31, 1997. In addition, banking regulators have
adopted risk-based capital guidelines, under which risk percentages are assigned
to various categories of assets and off-balance sheet items to calculate a risk-
adjusted capital ratio. Tier I capital generally consists of common
shareholders' equity, less goodwill and certain identifiable intangible assets,
while Tier II capital includes the allowance for loan losses and subordinated
debt, both subject to certain limitations. Regulatory minimum risk-based capital
guidelines require Tier I capital of 4% of risk-adjusted assets and total
capital (combined Tier I and Tier II) of 8%. The Company's Tier I and total
capital ratios were 9.89% and 10.88%, respectively, at December 31, 1998,
compared with 10.77% and 11.93%, respectively, at December 31, 1997.

  Applicable federal and Washington state regulations restrict capital
distributions by institutions such as Columbia Bank, including dividends. Such
restrictions are tied to the institution's capital levels after giving effect to
distributions. The Company's ability to pay cash dividends is substantially
dependent upon receipt of dividends from the Bank.

  On April 22, 1998, the Company announced a three shares for two stock split
payable on May 20, 1998, to shareholders of record on May 6, 1998. Common shares
issued and outstanding, average shares outstanding and net income per share for
all periods presented have been retroactively adjusted to give effect to this
transaction.

IMPACT OF INFLATION AND CHANGING PRICES

The impact of inflation on the Company's operations is increased operating
costs. Unlike most industrial companies, virtually all the assets and
liabilities of a financial institution are monetary in nature. As a result,
interest rates generally have a more significant impact on a financial
institution's performance than the effect of general levels of inflation.
Although interest rates do not necessarily move in the same direction or to the
same extent as the prices of goods and services, increases in inflation
generally have resulted in increased interest rates.

IMPACT OF THE YEAR 2000 ISSUE (Y2K)

Many existing computer systems, including the systems used by the Company, use
only two digits to identify a year in the date field. These programs were
designed and developed without considering the impact of the upcoming change in
the century. If not corrected, many computer applications could fail or create
erroneous results by or at the Year 2000. Financial institutions, such as
Columbia, are dependent on many types of automated computer systems for their
day to day operations. The failure of any of theses systems to recognize the
Year 2000, could have a material effect on the Company's business, results of
operations, and/or financial condition.

THE COMPANY'S STATE OF READINESS  The Company currently is preparing its
operations for the Year 2000 and has established a project team, which has
developed a project plan intended to insure that the Company will be Y2K
compatible well before December 31, 1999. The project plan incorporates five
phases: awareness, assessment, renovation, validation, and implementation.

  The awareness phase is ongoing and incorporates monthly updates to the Board
of Directors, management, and staff. In addition, shareholders and customers are
informed through mailings and financial reports. The Y2K project team meets
regularly. Loan officers have been trained in interviewing and surveying credit
customers on the state of readiness of their businesses and have begun those
activities.

  The Company has completed its assessment of all of its computer systems,
hardware, software, networks, telecommunications, ATM, property, and equipment
that could potentially be either directly or indirectly affected by Y2K. The
Company has identified all vendors that supply services and/or products that
could be considered critical to day-to-day operations to determine if they are
Y2K compatible. The Company is identifying all customers who have a total
borrowing relationship of $250,000 or more or otherwise have the potential to
adversely affect the Company's asset quality or profitability if they do not
become Y2K compatible.

                                      24
<PAGE>

  Based on its assessment, the Company has essentially completed renovating all
systems and equipment that have been identified needing Y2K up-grades. In early
October, the Company's data processing provider advised the Company that it had
successfully converted its systems to Y2K compatibility. Testing is scheduled to
be completed and the Company's data processing system is expected to be fully
compliant by March 31, 1999. All other systems and equipment have been upgraded
or are in process of being upgraded. The Company is monitoring vendors that are
in the process of upgrading or have not begun upgrading their businesses.

  The validation process involves testing all systems and equipment for Y2K
compatibility. Bank hardware has been tested and the Company is in the process
of replacing obsolete equipment as part of our normal business operations.

  The implementation phase is ongoing and incorporates the development of
contingency plans for the century date change. The Company has developed a
credit risk mitigation plan, a liquidity contingency plan, and ongoing
disclosures and inquiries to customers and vendors.

THE COSTS TO ADDRESS THE COMPANY'S YEAR 2000 ISSUES  The Company has expended
approximately $53,000 in staff time and travel expenses in addressing the Y2K
issue. Equipment upgrades are expected to cost approximately $543,000. Much of
the Company's equipment, such as PCs, was upgraded in 1998 as part of normal
business operations. The Company is relatively new and the majority of its
hardware and software are recent purchases or are being upgraded to meet growth
demands. The Company moved into a new state-of-the-art operations center in
August 1998. The center included the installation of new item processing
hardware and software, a new voice response unit, a new wire transfer system,
and a new optical storage system, all of which are Y2K compatible. Future
expenses cannot be predicted with certainty at this time, however, management
does not believe that expenses relating to meeting the Company's Y2K challenges
will have a material effect on its operations or financial performance.

THE RISKS OF THE COMPANY'S YEAR 2000 ISSUES  Although the Company can and will
prepare its operations for the century change, there can be no assurance that
forces beyond its control will not impact its operations. The Company purchases
systems, equipment, and data processing services from vendors and suppliers. It
also depends on many other vendors for various services needed for day-to-day
operations. The Company's customers could also be impacted adversely by the
century change and thereby impact the financial performance of the Company. In
spite of the Company's diligent efforts in assuring its outside suppliers,
vendors and customers are Y2K compliant, there can be no assurance that when the
century changes, certain systems, technology and equipment of Columbia, its
vendors and its customers will not be impacted and consequently impact the
operations of the Company.

THE COMPANY'S CONTINGENCY PLANS  The Company has developed a comprehensive Year
2000 contingency plan. Although the Company has taken precautions to assure its
technology is Y2K ready, it will continue to address possible emergency
scenarios.

  The Company's new state-of-the-art operations center has a generator backup to
run the entire facility. All branches have special procedures in order to
operate without the usual telecommunications links so that, in the event of a
telecommunications failure, the Company is able to process its data through a
remote site.

                                      25
<PAGE>
 
QUARTERLY COMMON STOCK PRICES AND DIVIDEND PAYMENTS

The Company's common stock trades on The Nasdaq Stock Market under the symbol
COLB. Price information generally appears daily in the Nasdaq National Market
Issues section of The Wall Street Journal and in most major Pacific Northwest
metropolitan newspapers. On December 31, 1998, the last sale price for the
Company's stock in the over-the-counter market was $18/1/2/.

  The Company presently intends to retain earnings to support anticipated
growth. Accordingly, the Company does not intend to pay cash dividends on its
common stock in the foreseeable future. Please refer to the "Capital" section of
the "Management Discussion and Analysis of Financial Condition and Results of
Operations" and Note 4 to the consolidated financial statements, contained
elsewhere in this report, for regulatory capital requirements and restrictions
on dividends to shareholders.

  The Company is aware that large blocks of its stock are held in street name by
brokerage firms. At December 31, 1998, the number of shareholders of record was
1,349.

  The following are high and low sales prices as reported in Nasdaq according to
information furnished by the National Association of Securities Dealers. Prices
do not include retail mark-ups, mark-downs or commissions.
 

                       1998                   1997
                       HIGH        LOW        HIGH        LOW

   First quarter     $ 21/1/4/  $ 17/7/8/  $ 11/9/16/  $9/27/32/
   Second quarter     27/5/32/    19/7/8/     13/3/4/     9/3/8/
   Third quarter       23/1/2/    14/3/8/    17/5/32/   13/5/32/
   Fourth quarter      22/1/2/   15/7/16/   18/27/32/         15
   For the year       27/5/32/    14/3/8/   18/27/32/     9/3/8/


                                      26
<PAGE>
 
REPORT OF
INDEPENDENT AUDITORS

To the Board of Directors and Shareholders of Columbia Banking System, Inc.

We have audited the accompanying consolidated balance sheet of Columbia Banking
System, Inc. and its subsidiaries (the Company) as of December 31, 1998 and
1997, and the related consolidated statements of operations, shareholders'
equity and cash flows for the years then ended. These financial statements are
the responsibility of the Company's management. Our responsibility is to express
an opinion on these financial statements based on our audits.

  We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

  In our opinion, such consolidated financial statements present fairly in all
material respects, the financial position of the Company at December 31, 1998
and 1997, and the results of its operations and its cash flows for the two years
then ended, in conformity with generally accepted accounting principles.

  The accompanying consolidated financial statements give retroactive effect to
the mergers of the Company and Cascade Bancorp, Inc. and the Company and Bank of
Fife, which have been accounted for as poolings of interests as described in
Note 3 to the consolidated financial statements.

  The consolidated financial statements of the Company for the year ended
December 31, 1996, prior to their restatement for the 1997 poolings of
interests, were audited by other auditors whose report dated January 22, 1997
expressed an unqualified opinion on those statements. The contribution of the
Company represented 77% of restated net income in 1996. Separate financial
statements of the other companies included in the Company's restated
consolidated financial statements for the year ended December 31, 1996 were
audited and reported on separately by other auditors. We have audited the
statements of operations, shareholders' equity, and cash flows for the year
ended December 31, 1996, after restatement for the 1997 poolings of interests;
in our opinion, such consolidated statements have been properly combined on the
basis as described in Note 3 of the notes to the consolidated financial
statements.


/s/ Deloitte & Touche LLP
_____________________________
Deloitte & Touche LLP
Seattle, Washington

January 29, 1999

                                      27
<PAGE>
 
CONSOLIDATED STATEMENTS OF
OPERATIONS
<TABLE>
<CAPTION>
 
 
(IN THOUSANDS EXCEPT PER SHARE) YEARS ENDED DECEMBER 31,                                  1998            1997            1996
<S>                                                                                  <C>           <C>              <C>
INTEREST INCOME
Loans                                                                                  $  66,858      $   56,176       $  43,240
Securities available for sale                                                              4,696           3,800           2,360
Securities held to maturity                                                                  419             628             702
Deposits with banks                                                                        1,654           1,457           1,583
- --------------------------------------------------------------------------------------------------------------------------------
 Total interest income                                                                    73,627          62,061          47,885
 
INTEREST EXPENSE
Deposits                                                                                  29,759          24,775          20,370
Federal Home Loan Bank advances                                                            1,908           1,971           1,938
Other borrowings                                                                                              84             233
- --------------------------------------------------------------------------------------------------------------------------------
 Total interest expense                                                                   31,667          26,830          22,541
- --------------------------------------------------------------------------------------------------------------------------------
Net Interest Income                                                                       41,960          35,231          25,344
 
Provision for loan losses                                                                  1,900           4,726           1,635
- --------------------------------------------------------------------------------------------------------------------------------
 Net interest income after provision for loan losses                                      40,060          30,505          23,709
 
NONINTEREST INCOME
Service charges and other fees                                                             5,679           4,234           2,837
Mortgage banking                                                                           1,677           1,032             701
Gains on sales of loans, net                                                                               1,035
Other                                                                                      4,635           2,973           2,772
Key Man Life Insurance                                                                                     3,518
- --------------------------------------------------------------------------------------------------------------------------------
 Total noninterest income                                                                 11,991          12,792           6,310
 
NONINTEREST EXPENSE
Compensation and employee benefits                                                        15,816          13,329          10,285
Occupancy                                                                                  5,215           4,488           4,248
Advertising and promotion                                                                  1,848           1,264             806
Data processing                                                                            1,731           1,544           1,222
Other                                                                                     11,993           9,375           7,732
SAIF special assessment                                                                                                      612
Merger expenses                                                                                            1,234
- --------------------------------------------------------------------------------------------------------------------------------
 Total noninterest expense                                                                36,603          31,234          24,905
- --------------------------------------------------------------------------------------------------------------------------------
   Income before income taxes                                                             15,448          12,063           5,114
Provision for income taxes                                                                 5,247           2,788             479
- --------------------------------------------------------------------------------------------------------------------------------
Net Income                                                                             $  10,201      $    9,275       $   4,635
================================================================================================================================
 
NET INCOME PER COMMON SHARE:
 Basic                                                                                     $1.02           $0.94           $0.64
 Diluted                                                                                    0.98            0.91            0.63
 
Average number of common shares outstanding                                               10,046           9,875           7,192
Average number of diluted common shares outstanding                                       10,359          10,166           7,397
</TABLE> 
 
See accompanying notes to consolidated financial statements.

                                      28
<PAGE>
 
CONSOLIDATED
BALANCE SHEETS
<TABLE> 
<CAPTION> 
 
(IN THOUSANDS) DECEMBER 31,                                                                                 1998            1997
<S>                                                                                                  <C>             <C>  
ASSETS
Cash and due from banks                                                                               $   53,602       $  47,604
Interest-earning deposits with banks                                                                      22,816          28,108
 
Securities available for sale                                                                             93,726          56,279
Securities held to maturity                                                                                6,358           9,679
FHLB stock                                                                                                 5,550           5,144
 
Loans held for sale                                                                                       10,023           4,377
Loans                                                                                                    828,639         685,889
 Less: allowance for loan losses                                                                           9,002           8,440
- --------------------------------------------------------------------------------------------------------------------------------
   Loans, net                                                                                            819,637         677,449
 
Interest receivable                                                                                        6,420           5,023
Premises and equipment, net                                                                               37,077          27,246
Real estate owned                                                                                            901             231
Other                                                                                                      3,809           3,415
- --------------------------------------------------------------------------------------------------------------------------------
 Total Assets                                                                                         $1,059,919       $ 864,555
================================================================================================================================
 
LIABILITIES AND SHAREHOLDERS' EQUITY
Deposits:
Noninterest-bearing                                                                                   $  180,445       $ 146,063
Interest-bearing                                                                                         757,900         594,367
- --------------------------------------------------------------------------------------------------------------------------------
 Total deposits                                                                                          938,345         740,430
 
Federal Home Loan Bank advances                                                                           25,000          39,000
Other liabilities                                                                                          7,008           6,772
- --------------------------------------------------------------------------------------------------------------------------------
 Total liabilities                                                                                       970,353         786,202
 
Commitments and contingent liabilities (Note 14)
 
Shareholders' equity:'
 Preferred stock (no par value)
   Authorized, 2 million shares; none outstanding
 
                                                                                 DECEMBER 31,
Common stock (no par value)                                                   1998          1997
 
Authorized shares                                                           45,000        16,500
Issued and outstanding                                                      10,062         9,880          68,612          67,901
Retained earnings                                                                                         20,616          10,415
Accumulated other comprehensive income
 Unrealized gains on securities available for sale, net of tax                                               338              37
- --------------------------------------------------------------------------------------------------------------------------------
 Total shareholders' equity                                                                               89,566          78,353
Total Liabilities and Shareholders' Equity                                                            $1,059,919        $864,555
================================================================================================================================
</TABLE> 
See accompanying notes to consolidated financial statements.


                                      29
<PAGE>
 
CONSOLIDATED STATEMENTS OF
SHAREHOLDERS' EQUITY
<TABLE> 
<CAPTION> 
 
                                                                                                     ACCUMULATED
                                                                    COMMON STOCK                           OTHER           TOTAL
                                                                NUMBER OF               RETAINED   COMPREHENSIVE    SHAREHOLDERS'   
(IN THOUSANDS)                                                     SHARES   AMOUNT      EARNINGS    INCOME (LOSS)         EQUITY
<S>                                                             <C>       <C>        <C>             <C>             <C> 
Balance at December 31, 1995                                        6,505  $37,414     $   2,804      $      (98)      $  40,120
 
Comprehensive income:
Net income for 1996                                                                        4,635
Change in unrealized gains and (losses)
 on securities available for sale, net of tax                                                                 60
 
 Total comprehensive income                                                                                                4,695
Issuance of shares of common stock, net                             2,238   20,900                                        20,900
Issuance of shares of common stock -
 5% stock dividend                                                    246    2,157        (2,157)
 
Conversion of Convertible Subordinated Notes                          383    2,509                                         2,509
- -------------------------------------------------------------------------------------------------------------------------------- 
Balance at December 31, 1996                                        9,372   62,980         5,282             (38)         68,224
 
Comprehensive income:
Net income for 1997                                                                        9,275
Change in unrealized gains and (losses)
 on securities available for sale, net of tax                                                                 75
 
 Total comprehensive income                                                                                                9,350
Issuance of shares of common stock, net                               117      779                                           779
Issuance of shares of common stock --
 5% stock dividend                                                    391    4,142        (4,142)
- -------------------------------------------------------------------------------------------------------------------------------- 
 
Balance at December 31, 1997                                        9,880   67,901        10,415              37          78,353
 
Comprehensive income:
Net income for 1998                                                                       10,201
Change in unrealized gains and (losses)
 on securities available for sale, net of tax                                                                301
 
 Total comprehensive income                                                                                               10,502
Issuance of shares of common stock, net                               182      711                                           711
- -------------------------------------------------------------------------------------------------------------------------------- 
Balance at December 31, 1998                                       10,062  $68,612     $  20,616      $      338       $  89,566
================================================================================================================================
</TABLE> 
 
See accompanying notes to consolidated financial statements.

                                      30
<PAGE>
 
CONSOLIDATED STATEMENTS OF
 CASH FLOWS
 
<TABLE> 
<CAPTION> 
(IN THOUSANDS)                                                                              1998            1997            1996
<S>                                                                                     <C>            <C>            <C> 
OPERATING ACTIVITIES
Net income                                                                             $  10,201      $    9,275       $   4,635
Adjustments to reconcile net income to net cash provided (used)
 by operating activities:
 Provision for loan losses                                                                 1,900           4,726           1,635
 Deferred income tax expense (benefit)                                                        30             956             (12)
 Losses on real estate owned                                                                  35             105              41
 Depreciation and amortization                                                             2,304           2,189           2,681
 Net realized losses (gains) on sale of assets                                               (55)           (971)            218
 (Increase) decrease in loans held for sale                                               (5,646)          6,964          (9,974)
 Increase in interest receivable                                                          (1,397)           (903)         (1,109)
 Increase in interest payable                                                                660             528             423
 Net changes in other assets and liabilities                                                (883)         (3,546)            208
- ----------------------------------------------------------------------------------------------------------------------------------
   Net cash provided (used) by operating activities                                        7,149          19,323          (1,254)
 
INVESTING ACTIVITIES
 Proceeds from maturities of securities available for sale                                49,250          25,337          17,885
 Purchase of securities available for sale                                               (83,186)        (34,831)        (46,770)
 Proceeds from maturities of mortgage-backed securities available for
  sale                                                                                     5,075           3,814           1,682
 Purchase of mortgage-backed securities available for sale                                (8,710)
 Proceeds from maturities of securities held to maturity                                   4,698           4,414           1,471
 Purchases of securities held to maturity                                                 (1,380)         (1,470)         (3,014)
 Loans originated and acquired, net of principal collected                              (144,585)       (173,877)       (106,888)
 Proceeds from sales of loans                                                                             10,177
 Purchases of premises and equipment                                                     (12,546)        (11,043)         (7,181)
 Proceeds from disposal of premises and equipment                                             20             400           1,273
 Proceeds from sale of real estate owned                                                     308             588           3,307
 Other, net                                                                                  (13)            (83)           (495)
- ----------------------------------------------------------------------------------------------------------------------------------
   Net cash used by investing activities                                                (191,069)       (176,574)       (138,730)
 
FINANCING ACTIVITIES
 Net increase in deposits                                                                197,915         143,926         149,605
 Proceeds from FHLB advances and other long-term debt                                                     25,000          32,800
 Repayment of FHLB advances and other long-term debt                                     (14,000)        (20,000)        (23,800)
 Increase in securities sold under repurchase agreements                                                                   1,366
 Proceeds from issuance of common stock, net                                                 711             779          20,900
- ----------------------------------------------------------------------------------------------------------------------------------
   Net cash provided by financing activities                                             184,626         149,705         180,871
- ----------------------------------------------------------------------------------------------------------------------------------
     Increase (decrease) in cash and cash equivalents                                        706          (7,546)         40,887
     Cash and cash equivalents at beginning of period                                     75,712          83,258          42,371
- ----------------------------------------------------------------------------------------------------------------------------------
 Cash and cash equivalents at end of period                                            $  76,418      $   75,712       $  83,258
==================================================================================================================================
 
SUPPLEMENTAL INFORMATION:
Cash paid for interest                                                                 $  31,007      $   26,302       $  22,117
Cash paid for income taxes                                                                 5,547           3,380             460
Transfer from securities available for sale to held to
 maturity                                                                                                    996
Loans foreclosed and transferred to real estate owned                                      1,000             440             528
Issuance of common stock from conversion of convertible subordinated notes                                                 2,509
See accompanying notes to consolidated financial statements.
</TABLE> 

                                      31
<PAGE>
 
NOTES
     TO CONSOLIDATED FINANCIAL STATEMENTS

Columbia Banking System, Inc. (the "Company") is a registered bank holding
company whose wholly owned subsidiary, Columbia State Bank ("Columbia Bank"),
conducts a full-service commercial  banking business.  Headquartered in Tacoma,
Washington, the Company provides a full range of  banking services to small and
medium-sized businesses, professionals and other individuals through banking
offices located in the Tacoma metropolitan area and contiguous parts of the
Puget Sound region of Washington, as well as the Longview and Woodland
communities in southwestern Washington.  Substantially all of the Company's
loans, loan commitments and core deposits are geographically concentrated in its
service areas.



NOTE 1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The financial statements have been prepared in accordance with generally
accepted accounting principles.  Accordingly, they include all of the
information and footnotes required by generally accepted accounting principles
for complete financial statements.  In the opinion of management, all
adjustments including normal recurring accruals necessary for a fair
presentation of results of operations for all periods included herein have been
made.  The results of operations for the year ending December 31, 1998 are not
necessarily indicative of results to be anticipated for future periods.

CONSOLIDATION    The consolidated financial statements of the Company include
the accounts of the corporation and its wholly owned subsidiaries after the
elimination of all material intercompany transactions and accounts.

ACCOUNTING TREATMENT OF MERGERS    All mergers during the reported periods
qualify for "pooling of interests" accounting treatment.  Under the pooling of
interests method of accounting, the historical basis of the assets, liabilities,
and equity are combined and carried forward at their previously recorded
amounts.  Income and other financial statements after the mergers are restated
retroactively as if the mergers had taken place prior to the periods covered by
such financial statements.  No recognition of goodwill arising from the mergers
is required under the pooling of interests accounting method.

SECURITIES AVAILABLE FOR SALE    Securities to be held for indefinite periods of
time and not intended to be held to maturity or on a long-term basis are
classified as available for sale and carried at market value.  Unrealized gains
and losses are recorded directly to a component of shareholders' equity.
Securities available for sale include securities that management intends to use
as part of its asset/liability management strategy and that may be sold in
response to changes in interest rates and/or significant prepayment risk.

SECURITIES HELD TO MATURITY    Securities held to maturity are those securities
which the Company has the ability and intent to hold to maturity. Events which
may be reasonably anticipated are considered when determining the Company's
intent to hold investment securities until maturity. Investment securities are
carried at cost, adjusted for amortization of premiums and accretion of
discounts using a method that approximates the interest method. Gains and losses
on the sale of all securities are determined using the specific identification
method.

LOANS    Loans are stated at their principal amount outstanding, less any
unamortized discounts and deferred net loan fees.  Loans held for sale are
carried at the lower of cost or market value.  The amount by which cost exceeds
market for loans held for sale is accounted for as a valuation allowance, and
changes in the allowance are included in the determination of net income in the
period in which the change occurs.

  The current policy of the Company generally is to discontinue the accrual of
interest on all loans past due 90 days or more and place them on nonaccrual
status.

  The Bank evaluates commercial real estate and commercial business loans for
impairment on an individual basis. A loan is considered impaired when it is
probable that a creditor will be unable to collect all amounts due according to
the terms of the loan agreement. Factors involved in determining impairment
include, but are not limited to, the financial condition of the borrower, value
of the underlying collateral, and current economic conditions. The valuation of
impaired loans is based on either the present value of expected future cash
flows discounted at the loan's effective interest rate or at the loan's
observable market price or the fair value of the collateral if the loan is
collateral dependent. The amount by which the recorded investment in the loan
exceeds either the present value of expected future cash flows or the value of
the impaired loan's collateral when applicable, would be a specifically
allocated reserve for loan losses. Any portion of an impaired loan classified as
loss under regulatory guidelines is charged-off.

  Premiums or discounts on loans purchased are amortized, using the interest
method, over periods which approximate the average life of the loans.

                                      32
<PAGE>
 
LOAN FEE INCOME    Loan origination fees and certain direct loan origination
costs are deferred and the net amount recognized as an adjustment to yield over
the contractual life of the related loans.  Costs related to origination of
credit cards are expensed as incurred.  Fees related to lending activity other
than the origination or purchase of loans are recognized as noninterest income
during the period the related services are performed.

ALLOWANCE FOR LOAN LOSSES    The allowance for loan losses is maintained at a
level believed to be sufficient to absorb potential losses in the portfolio.
Management's determination of the adequacy of the allowance is based on a number
of factors, including the level of nonperforming loans, loan loss experience,
credit concentrations, a review of the quality of the loan portfolio, collateral
values and uncertainties in economic conditions.

PREMISES AND EQUIPMENT    Premises and equipment are recorded at cost and
depreciated over the estimated useful lives of the assets. Depreciation and
amortization are computed using the straight-line method.  Gains or losses on
dispositions are reflected in operations.  Expenditures for improvements and
major renewals are capitalized, and ordinary maintenance, repairs and small
purchases are charged to operations as incurred.

REAL ESTATE OWNED    All real estate acquired in satisfaction of a loan is
considered held for sale and reported as "real estate owned."  Real estate owned
is carried at the lower of cost or fair value less estimated cost of disposal.
Cost at the time of foreclosure is defined as the fair value of the asset less
estimated disposal costs.

INCOME TAX    The provision for income tax, generally, is based on income and
expense reported for financial statement purposes, using the "asset and
liability method" for accounting for deferred income tax.  Deferred tax assets
and liabilities are recognized for the future tax consequences attributable to
differences between the financial statement carrying amounts of existing assets
and liabilities and their respective tax bases.  Deferred tax assets and
liabilities are measured using enacted tax rates expected to apply to taxable
income in the years in which those temporary differences are expected to be
recovered or settled. The effect on deferred tax assets and liabilities of a
change in tax rates is recognized in income in the period that includes the
enactment date.  A valuation allowance is recorded against any deferred tax
assets for which it is more likely than not that the deferred tax asset will not
be realized.

EARNINGS PER SHARE    Earnings per share is computed using the weighted average
number of common and diluted common shares outstanding during the period.  Basic
EPS is computed by dividing income available to common stockholders by the
weighted average number of common shares outstanding for the period.  Diluted
EPS reflects the potential dilution that could occur if securities or other
contracts to issue common stock were exercised or converted into common stock.
The only reconciling item affecting the calculation of earnings per share is the
inclusion of stock options affecting the shares outstanding in diluted earnings
per share of 313,000, 291,000, and 205,000 in 1998, 1997, and 1996 respectively.

USE OF ESTIMATES     The preparation of financial statements in conformity with
generally accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities and
the disclosure of contingent assets and liabilities at the date of the financial
statements, and the reported amounts of revenues and expenses during the
reporting period.  Actual results could differ from those estimates.
Significant estimates are used in determining the level of the allowance for
loan losses, valuation allowance on deferred tax assets, depreciation of
premises and equipment and others.

STATEMENT OF CASH FLOWS    The accompanying consolidated statements of cash
flows has been prepared using the "indirect" method for presenting cash flows
from operating activities.  For purposes of this statement, cash and cash
equivalents include cash and due from banks, interest-earning deposits with
banks and federal funds sold.

RECLASSIFICATION    Certain amounts in the 1997 and 1996 consolidated financial
statements have been reclassified to conform with the 1998 presentation.  These
reclassifications had no effect on net income.

PROSPECTIVE ACCOUNTING PRONOUNCEMENT     In June 1997, the Financial Accounting
Standards Board ("FASB") issued Statement of Financial Accounting Standards
("SFAS") No. 130, "Reporting Comprehensive Income" ("SFAS 130").  The statement
provides standards for reporting comprehensive, or all-inclusive income.  In the
Company's case, based on current operations, it would include as an addition or
deduction to reported net income, the change in the securities valuation
reserve.  This statement will not affect reported net income of the Company.
SFAS No. 130 is effective in the Company's 1998 financial statements and all
prior periods shown on the financial statements have been restated.

  In June 1997, the FASB issued SFAS No. 131, "Disclosures about Segments of an
Enterprise and Related Information".  The statement provides standards for
reporting of information about operating segments in annual financial statements
that public business enterprises report and requires that those enterprises
report selected information about operating segments in interim financial
reports issued to shareholders.  SFAS No.131 is effective for financial
statements for periods beginning after December 15, 1997.  The Company, after
reviewing SFAS No. 131, has determined that its current business and operations
are not divided and reported on in segments.  All of the Company's operations
are interrelated and to breakout any of its operations into segments would not
be meaningful or consistent with its current management and reporting practices
and therefore could possibly be misleading to the reader and/or investor.

                                      33
<PAGE>
 
  In February 1998, the FASB issued SFAS No. 132, "Employers' Disclosures about
Pensions and Other Postretirement Benefits." The Statement revises employers'
disclosures about pension and other postretirement benefit plans to facilitate
financial analysis, and to eliminate disclosures that are no longer useful. SFAS
No. 132 is effective for fiscal years beginning after December 15, 1997.
Adoption of SFAS No. 132 has no material effect on the Company's financial
statements.

  In June 1998, the FASB issued SFAS No. 133, "Accounting for Derivative
Instruments and Hedging Activities." The Statement establishes accounting and
reporting standards requiring that every derivative instrument be recorded in
the balance sheet measured at its fair value.  This Statement requires that
changes in the derivative's fair value be recognized currently in earnings
unless specific hedge accounting criteria are met. SFAS No. 133 is effective for
fiscal years beginning after June 15, 1999.  The Company currently has no
activity in derivative instruments and hedging activities, and does not expect
adopting of SFAS No. 133 to have a material effect on the financial statements.

  In October 1998, the FASB issued SFAS No. 134, "Accounting for Mortgage-Backed
Securities Retained after the Securitization of Mortgage Loans Held for Sale by
a Mortgage Banking Enterprise." The Statement establishes accounting and
reporting standards requiring that after the securitization of mortgage loans
held for sale, an entity engaged in mortgage banking activities classify the
resulting mortgage-backed securities or other retained interests based on its
ability and intent to sell or hold those investments.  SFAS No. 134 is effective
for the first fiscal quarter beginning after December 15, 1998.  The Company
currently has no activity in securitizing mortgage loans held for sale, and does
not expect adopting of SFAS No. 134 to have a material effect on the financial
statements.


NOTE 2.  STOCK SPLIT

On April 22, 1998, the Company announced a three shares for two stock split
payable on May 20, 1998, to shareholders of record on May 6, 1998.  Common
shares authorized, issued and outstanding, average shares outstanding and net
income per share for all periods presented have been retroactively adjusted to
give effect to this transaction.


NOTE 3.  BUSINESS COMBINATIONS/RESTRUCTURING

On December 1,1997, the Company merged with Cascade Bancorp ("Cascade") and Bank
of Fife ("Fife").  At December 1, 1997, Cascade Bancorp had assets of $90.3
million, deposits of $78.7 million and shareholder's equity of $6.8 million. At
December 1, 1997, Bank of Fife had assets of $34.0 million, deposits of $30.2
million and stockholder's equity of $3.5 million.   The Company issued 1,128,758
shares of common stock to complete the merger with Cascade Bancorp and 465,276
shares to complete the merger with Bank of Fife (adjusted for 1998 stock split,
see Note 2).  The mergers were treated as a pooling of interests.  The financial
information presented in this document reflects the pooling of interests method
of accounting for both mergers.  Accordingly, under generally accepted
accounting principles, the assets, liabilities and stockholders' equity of
Cascade Bancorp and Bank of Fife were recorded on the books of the resulting
institution at their values as reported on the books of Cascade Bancorp and Bank
of Fife immediately prior to the consummation of the mergers.  No goodwill was
created in the mergers.  This presentation required the restatement of prior
periods as if the companies had been combined for all years presented.

NOTE 4.  RESTRICTIONS ON SUBSIDIARY CASH, LOANS AND DIVIDENDS

  Columbia Bank is required to maintain reserve balances with the Federal
Reserve Bank. The average required reserves for the year ended December 31, 1998
were approximately $4.4 million. The required reserves are based on specified
percentages of the Bank's total average deposits, which are established by the
Federal Reserve Board.

  Under Federal Reserve regulations, Columbia Bank, generally, is limited as to
the amount it may loan to the Company, to 10% of its capital stock and
additional paid-in capital.  Such loans must be collateralized by specified
obligations.

  Under Washington state banking regulations, Columbia Bank is limited as to the
ability to declare or pay dividends to the Company up to the amount of the
Columbia Bank's net profits then on hand, less any required transfers to
additional paid-in capital.

                                      34
<PAGE>
 
NOTE 5.  SECURITIES

The following table summarizes the amortized cost, gross unrealized gains and
losses and the resulting market value of securities available for sale.
<TABLE>
<CAPTION>
 
SECURITIES AVAILABLE FOR SALE
                                                   GROSS        GROSS
                                      AMORTIZED  UNREALIZED  UNREALIZED   MARKET 
(IN THOUSANDS)                          COST       GAINS       LOSSES      VALUE 
<S>                                   <C>        <C>         <C>          <C>
December 31, 1998:
 U.S. Treasury & government agency      $81,549        $474               $82,023
 Mortgage-backed                         10,672           1                10,673
 Other securities                           992          38                 1,030
- ----------------------------------------------------------------------------------
   Total                                $93,213        $513               $93,726
==================================================================================
 
December 31, 1997:
 U.S. Treasury & government agency      $48,178        $ 78               $48,256
 Mortgage-backed                          7,046                    $(27)    7,019
 Other securities                           990          14                 1,004
- ----------------------------------------------------------------------------------
   Total                                $56,214        $ 92        $(27)  $56,279
==================================================================================
</TABLE>
  There were no sales of securities available for sale during the years ended
December 31, 1998 and 1997.

  At December 31, 1998 and 1997, securities available for sale with a fair value
of $4.8 million and $4.3 million, respectively, were pledged to secure public
deposits and for other purposes as required or permitted by law.

  The following table summarizes the amortized cost and market values of
securities available for sale by contractual maturity groups:
<TABLE>
<CAPTION>
                                                                            AMORTIZED   MARKET 
(IN THOUSANDS) DECEMBER 31, 1998                                               COST     VALUE 
<S>                                                                           <C>       <C>
Amount maturing:
 Within one year                                                              $ 9,988  $10,010
 Greater than one year and less than five years                                35,127   35,301
 Greater than five years and less than ten years                               39,088   39,405
 After ten years                                                                9,010    9,010
- ----------------------------------------------------------------------------------------------
   Total                                                                      $93,213  $93,726
==============================================================================================
</TABLE> 
 
<TABLE> 
SECURITIES HELD TO MATURITY                                         GROSS       GROSS         
                                                    AMORTIZED  UNREALIZED  UNREALIZED   MARKET
(IN THOUSANDS)                                           COST       GAINS      LOSSES    VALUE
<S>                                                     <C>          <C>               <C>
December 31, 1998:
 U.S. Treasury & government agency                     $  497        $  7              $   504
 State and municipal securities                         5,115         121                5,236
 Other Securities                                         496          18                  514
 FHLMC preferred stock                                    250           1                  251
- ----------------------------------------------------------------------------------------------
   Total                                               $6,358        $147              $ 6,505
==============================================================================================
 
December 31, 1997:
 U.S. Treasury & government agency                     $4,743        $  8              $ 4,751
 State and municipal securities                         4,191          54                4,245
 Other Securities                                         495           6                  501
 FHLMC preferred stock                                    250           7                  257
- ----------------------------------------------------------------------------------------------
   Total                                               $9,679        $ 75              $ 9,754
==============================================================================================
</TABLE> 

                                      35
<PAGE>
 
<TABLE> 
                                                                            AMORTIZED   MARKET
(IN THOUSANDS) DECEMBER 31, 1998                                                 COST    VALUE
<S>                                                                         <C>       <C> 
Amount maturing:
 Within one year                                                              $   982  $   990
 Greater than one year and less than five years                                 3,663    3,751
 Greater than five years and less than ten years                                1,713    1,764
- ----------------------------------------------------------------------------------------------
   Total                                                                      $ 6,358  $ 6,505
==============================================================================================
</TABLE>
There were no sales of securities held to maturity during the years ended
December 31, 1998 and 1997.


NOTE 6.  LOANS

The following is an analysis of the loan portfolio by major types of loans:
<TABLE>
<CAPTION>
 
(IN THOUSANDS) DECEMBER 31,                                     1998       1997
<S>                                                           <C>        <C>
Commercial business                                           $332,638   $270,946
Real estate:
 One- to four-family residential                                61,132     71,095
 Five or more family residential and commercial properties     291,868    206,628
- ---------------------------------------------------------------------------------
   Total real estate                                           353,000    277,723
Real estate construction:
 One- to four-family residential                                26,444     29,695
 Five or more family residential and commercial properties      23,213     33,806
- ---------------------------------------------------------------------------------
   Total real estate construction                               49,657     63,501
Consumer                                                        94,572     74,710
- ---------------------------------------------------------------------------------
 Subtotal                                                      829,867    686,880
Less deferred loan fees, net and other                          (1,228)      (991)
- ---------------------------------------------------------------------------------
 Total loans                                                  $828,639   $685,889
=================================================================================
Loans held for sale                                           $ 10,023   $  4,377
=================================================================================
</TABLE>

  At December 31, 1998 and 1997, residential real estate loans with recorded
values of $30.0 million and $46.8 million, respectively, were pledged to secure
Federal Home Loan Bank advances and for other purposes.

 The following table summarizes certain information related to nonperforming
loans:
<TABLE>
<CAPTION>
 
(IN THOUSANDS) DECEMBER 31,                   1998    1997    1996 
<S>                                          <C>     <C>     <C>
Loans accounted for on a nonaccrual basis    $3,603  $1,462  $2,256
Restructured loans                            1,783      20      25
- -------------------------------------------------------------------
 Total nonperforming loans                   $5,386  $1,482  $2,281
===================================================================

Originally contracted interest               $  408  $   68  $  219
Recorded interest                               221      12     102
- -------------------------------------------------------------------
Reduction in interest income                 $  187  $   56  $  117
===================================================================
</TABLE>

  At December 31, 1998 and 1997, the recorded investment in impaired loans was
$1.2 million and $728,000, respectively. No specific allocated allowance for
loan losses has been made for impaired loans. The average recorded investment in
impaired loans for the period ended December 31, 1998 and 1997 was $1.5 million
and $570,000, respectively.

  At December 31, 1998 and 1997, there were no commitments for additional funds
for loans accounted for on a nonaccrual basis.

  At December 31, 1998 and 1997, the Company had no loans to foreign domiciled
businesses or foreign countries, or loans related to highly leveraged
transactions.

  The Company's banking subsidiary has granted loans to officers and directors
of the Company and their associates. These loans are made on substantially the
same terms, including interest rates and collateral, as those prevailing at the
time for comparable transactions with unrelated persons and do not involve more
than the normal risk of collectibility. The aggregate dollar amount of these
loans was $27.6 million and $5.9 million at December 31, 1998 and 1997,
respectively. During 1998, $21.8 million of new related party loans were made,
and repayments and transfers totaled $100,000.

                                      36
<PAGE>
 
NOTE 7.  ALLOWANCE FOR LOAN LOSSES

Transactions in the allowance for loan losses are summarized as follows:
<TABLE>
<CAPTION>
 
(IN THOUSANDS) YEARS ENDED DECEMBER 31,      1998      1997     1996 
<S>                                        <C>       <C>       <C>
 
Balance at beginning of period             $ 8,440   $ 5,282   $4,340
Loans charged off                           (1,585)   (1,659)    (720)
Recoveries                                     247        91       27
- ---------------------------------------------------------------------
 Net charge-offs                            (1,338)   (1,568)    (693)
Provision charged to operating expense       1,900     4,726    1,635
- ---------------------------------------------------------------------
 Balance at end of period                  $ 9,002   $ 8,440   $5,282
=====================================================================
</TABLE>

NOTE 8.  PREMISES AND EQUIPMENT

Land, buildings, and furniture and equipment, less accumulated depreciation and
amortization, were as follows:
<TABLE>
<CAPTION>
 
(IN THOUSANDS) DECEMBER 31,                         1998       1997
<S>                                               <C>        <C>
Land                                              $  8,667   $ 5,452
Buildings                                           21,337    17,762
Leasehold improvements                               1,583     1,424
Furniture and equipment                             13,180     9,303
Vehicles                                               181       118
Computer software                                    2,610     1,360
- --------------------------------------------------------------------
 Total cost                                         47,558    35,419
Less accumulated depreciation and amortization     (10,481)   (8,173)
- --------------------------------------------------------------------
 Total                                            $ 37,077   $27,246
====================================================================
</TABLE>

  Total depreciation and amortization expense on buildings and furniture and
equipment was $2.6 million, $2.1 million, and $2.1 million for the years ended
December 31, 1998, 1997 and 1996, respectively.

  The Company is obligated under various noncancellable lease agreements for
property and equipment (primarily for land and buildings) which require future
minimum rental payments, exclusive of taxes and other charges, as follows:

<TABLE>
<CAPTION>
(IN THOUSANDS) YEAR ENDING DECEMBER 31,
<S>                                                    <C>   
1999                                                   $1,270
2000                                                    1,000
2001                                                      610
2002                                                      478
2003                                                      404 
2004 and thereafter                                     2,827
- -------------------------------------------------------------
   Total minimum payments                              $6,589
=============================================================
</TABLE>

  Total rental expense on buildings and equipment was $1.2 million for each of
the years ended December 31, 1998, 1997 and 1996, respectively.

                                      37
<PAGE>
 
NOTE 9.  FEDERAL HOME LOAN BANK ADVANCES AND LONG-TERM DEBT

The Company had Federal Home Loan Bank ("FHLB") advances of $25.0 million and
$39.0 million at December 31, 1998 and 1997, respectively.

  FHLB advances are at the following interest rates:

<TABLE>
<CAPTION>
 
(DOLLARS IN THOUSANDS) DECEMBER 31,                                      1998     1997
<S>                                                                     <C>      <C>
6.14%                                                                            $ 2,000
6.07                                                                               2,000
5.39                                                                    $25,000   25,000
5.32                                                                               5,000
5.20                                                                               5,000
- ----------------------------------------------------------------------------------------
Total                                                                   $25,000  $39,000
========================================================================================
</TABLE>                                                    

Aggregate maturities of FHLB advances due in years ending after December 31,
1998, are as follows:
                                                            
<TABLE>                                                     
<CAPTION>                                                   
(IN THOUSANDS)                                                                    AMOUNT
<S>                                                                             <C>  
2002                                                                             $25,000
========================================================================================
</TABLE>

FHLB advances are collateralized by residential real estate loans with a
recorded value of approximately $30.0 million at December 31, 1998, and $46.8
million at December 31, 1997 (see Note 6). Penalties are generally required for
prepayments of certain long-term FHLB advances.

                                      38
<PAGE>
 
NOTE 10.  INCOME TAX

The components of income tax expense are as follows:
<TABLE>
<CAPTION>
(IN THOUSANDS) YEARS ENDED DECEMBER 31,     1998     1997     1996
<S>                                        <C>     <C>       <C>
 
Current                                    $5,217  $ 4,258   $ 491
Deferred (benefit)                             30   (1,470)    (12)
- ------------------------------------------------------------------
 Total                                     $5,247  $ 2,788   $ 479
==================================================================
</TABLE>

Significant components of the Company's deferred tax assets and liabilities at
December 31, 1998 and 1997 are as follows:

<TABLE>
<CAPTION>
(IN THOUSANDS) DECEMBER 31,                                                                         1998      1997
<S>                                                                                             <C>       <C>
Deferred tax assets:
 Allowance for loan losses                                                                        $ 3,099   $ 2,914 
- -------------------------------------------------------------------------------------------------------------------
  Total deferred tax assets                                                                         3,099     2,914                 
                                                                                                                                    
Deferred tax liabilities:                                                                                                           
 FHLB stock dividends                                                                                (938)     (775)                
 Unrealized gain on investment securities available for sale                                         (174)      (22)                
 Depreciation                                                                                        (100)     (157)                
 Other                                                                                               (195)     (238)                
- -------------------------------------------------------------------------------------------------------------------
  Total deferred tax liabilities                                                                   (1,407)   (1,192)                
- -------------------------------------------------------------------------------------------------------------------
   Net deferred tax assets                                                                        $ 1,692   $ 1,722                 
===================================================================================================================        
</TABLE> 
A reconciliation of the Company's effective income tax rate with the federal
statutory tax rate is as follows:
 
(DOLLARS IN THOUSANDS)
<TABLE> 
<CAPTION> 
YEARS ENDED DECEMBER 31,                                      1998              1997               1996
                                                       AMOUNT    PERCENT  AMOUNT   PERCENT   AMOUNT   PERCENT
<S>                                                    <C>       <C>     <C>       <C>      <C>        <C> 
Income tax based on statutory rate                     $5,252       34%  $ 4,101       34%  $ 1,739      34%
Increase (reduction) resulting from:                                                                 
 Tax-exempt income                                        (32)      (1)   (1,252)     (10)      (40)     (1)
 Other nondeductible items                                 27        1       707        5        23  
 Valuation allowance                                                        (768)      (6)   (1,243)    (24)
- ------------------------------------------------------------------------------------------------------------
Income tax                                             $5,247       34%  $ 2,788       23%  $   479       9%
============================================================================================================
 </TABLE>

                                      39
<PAGE>
 
NOTE 11.  STOCK OPTIONS

The Company has an employee stock option plan ("the Plan") to provide additional
incentives to key employees, thereby helping to attract and retain the best
available personnel.  The Company applies APB Opinion 25 and related
interpretations in accounting for the Plan.  Accordingly, no compensation cost
has been recognized for the Plan.

  At December 31, 1998 and 1997, the Company had stock options outstanding of
549,953 shares and 522,224 shares, respectively, for the purchase of common
stock at options prices ranging from $3.67 to $26.00 per share.  The Company's
policy is to recognize compensation expense at the date the options were granted
due to the difference, if any, between the then market value of the Company's
common stock and the stated option price.  At December 31, 1998, a maximum of
797,823 shares were authorized under the stock option plan.

  Additionally, at December 31, 1998, the Company had options outstanding
granted to a company controlled by a director (now controlled by the estate of
that director) for the purchase of 43,228 and 16,497 shares of common stock at
exercise prices of approximately $3.91 and $5.59 per share, respectively.  These
options are generally exercisable in whole or in part at any time before
September 26, 2000.

 The following table outlines the stock option activity for 1998, 1997 and 1996:
<TABLE>
<CAPTION>
 
(IN THOUSANDS)                                         WEIGHTED
                                          NUMBER OF  AVERAGE PRICE
                                           OPTION      OF OPTION
                                           SHARES       SHARES
<S>                                        <C>         <C>
Balance at December 31, 1995               527,418     $ 5.39
 Issued                                    123,602       9.93
 Exercised                                 (27,795)      2.75
 Terminated                                (10,145)      6.98
- --------------------------------------------------------------
 
Balance at December 31, 1996               613,080       6.40
 Issued                                     94,230      11.59
 Exercised                                (105,273)      5.34
 Terminated                                   (787)      6.19
- --------------------------------------------------------------
 
Balance at December 31, 1997               601,250       7.40
 Issued                                     92,427      24.44
 Exercised                                (100,121)      4.99
 Terminated                                   (375)     18.50
 
Balance at December 31, 1998               593,181     $10.37
==============================================================

Total vested at December 31, 1998          392,614     $ 7.36
==============================================================
</TABLE>

Financial data pertaining to outstanding stock options were as follows:
<TABLE>
<CAPTION>
DECEMBER 31, 1998                                                                                   WEIGHTED
                                             WEIGHTED            WEIGHTED                            AVERAGE
        RANGES OF                             AVERAGE             AVERAGE        NUMBER OF    EXERCISE PRICE
         EXERCISE         NUMBER OF         REMAINING   EXERCISE PRICE OF      EXERCISABLE    OF EXERCISABLE
           PRICES     OPTION SHARES  CONTRACTUAL LIFE       OPTION SHARES    OPTION SHARES     OPTION SHARES
       <S>               <C>           <C>         <C>                <C>            <C>
       $3.67 - $5.37       75,220        2.2 Years             $ 3.85            75,220           $ 3.85
       5.59  -  7.97      251,125        3.3                     6.69           237,894             6.62
       9.53 - 13.49       158,336        7.2                    10.63            63,000            11.59
       18.00 - 26.00      108,500        6.8                    23.02            16,500            18.00
- ------------------------------------------------------------------------------------------------------------
                          593,181        4.8 Years             $10.37           392,614           $ 7.37
============================================================================================================
 </TABLE>

                                      40
<PAGE>
 
  Had compensation cost for the Company's Plan been determined based on the fair
value at the option grant dates, the Company's net income and earnings per share
would have been reduced to the pro forma amounts indicated below:
<TABLE>
<CAPTION>
 
YEAR ENDED DECEMBER 31,
(DOLLARS IN THOUSANDS EXCEPT PER SHARE)      1998     1997    1996 
<S>                                         <C>      <C>     <C>
Net income attributable to common stock:
      As reported                           $10,201  $9,275  $4,635
      Pro forma                               9,947   9,163   4,601
 
Net income per common share:
    Basic:
      As reported                           $  1.02  $ 0.94  $ 0.64
      Pro forma                                0.99    0.93    0.64
    Diluted:
      As reported                           $  0.98  $ 0.91  $ 0.63
      Pro forma                                0.96    0.90    0.62
</TABLE>

The fair value of options granted under the Company's stock option plan is
estimated on the date of grant using the Black-Scholes option-pricing model with
the following weighted-average assumptions used for grants in 1998, 1997 and
1996; expected volatility of 57.0% in 1998, 37.0% in 1997 and 40.1% in 1996;
risk-free rates of 4.5% for 1998, 5.6% for 1997 and 6.0% for 1996; no annual
dividend yields; and expected lives of five years for all years.


NOTE 12.  REGULATORY CAPITAL REQUIREMENTS

The Company is subject to various regulatory capital requirements administered
by the federal banking agencies.  Under capital adequacy guidelines and the
regulatory framework for prompt corrective action, the Company must meet
specific capital guidelines that involve quantitative measures of the Bank's
assets, liabilities, and certain off-balance-sheet items as calculated under
regulatory practices.  The Company's capital amounts and classification are also
subject to qualitative judgment by the regulators about components, risk
weightings, and other factors.

  The FDIC has established minimum amounts and ratios of total and Tier 1
capital to risk-weighted assets, and of Tier 1 capital to average assets.  The
regulations set forth the definitions of capital, risk-weighted and average
assets.  Management believes, as of December 31, 1998, that the Bank meets all
capital adequacy requirements, but is slightly below the criteria necessary to
be "well capitalized" as defined by regulations.

  As of September 30, 1997, the most recent notification from the FDIC
categorized the Bank as adequately capitalized under the regulatory framework
for prompt corrective action.  There are no conditions or events since that
notification that management believes have changed the Bank's category.

 The Bank's actual capital amounts and ratios are as follows:
<TABLE>
<CAPTION>
 
                                                         FOR CAPITAL      TO BE WELL CAPITALIZED
                                                          ADEQUACY        UNDER PROMPT CORRECTIVE
                                        ACTUAL            PURPOSES           ACTION PROVISIONS
                                   AMOUNT   RATIO      AMOUNT    RATIO       AMOUNT    RATIO
                                
AS OF DECEMBER 31, 1998         
<S>                                <C>       <C>      <C>        <C>         <C>       <C>
Total Capital                                                                      
   (to risk-weighted assets)      $87,693    9.8%     $71,863     8.0%      $89,829    10.0%
Tier 1 Capital                                                                     
   (to risk-weighted assets)       78,691    8.8%      35,931     4.0%       53,897     6.0%
Tier 1 Capital                                                                     
   (to average assets)             78,691    7.8%      40,515     4.0%       50,644     5.0%
                                                                                   
AS OF DECEMBER 31, 1997                                                            
Total Capital                                                                      
   (to risk-weighted assets)      $77,164   10.7%     $57,711     8.0%      $72,139    10.0%
Tier 1 Capital                                                                     
   (to risk-weighted assets)       68,724    9.5%      28,856     4.0%       43,284     6.0%
Tier 1 Capital                                                                     
   (to average assets)             68,724    8.3%      32,966     4.0%       41,207     5.0%
</TABLE>

                                      41
<PAGE>
 
NOTE 13.  EMPLOYEE BENEFIT PLAN

The Company maintains a defined contribution plan which allows employees to
contribute up to 15% of their compensation to the plan.  Employees who are at
least 20 1/2 years of age and have completed 6 months of service are eligible
to participate in the plan.  The Company is required to match 50% of employee
contributions up to 3% of each employee's total compensation.  The Company
contributed approximately $273,000, $211,000 and $153,000 in matching funds to
the plan during the years ended December 31, 1998, 1997 and 1996, respectively.

  The Company's amended defined contribution plan provides for a nonmatching,
discretionary contribution as determined annually by the Board of Directors of
the Company.  In January 1999 and 1998, the Company announced discretionary
contributions of approximately $581,000 and $439,000 for the years ended 1998
and 1997, respectively.

  The Company maintains an "Employee Stock Purchase Plan" ("ESPP").
Substantially all employees of the Company who have been continuously employed
for six months are eligible to participate in the ESPP under which Common Stock
is issued at quarterly intervals for cash at a price of 90% of the fair market
value of the stock.  Under the ESPP, 13,238 shares were acquired by employees
for approximately $258,000 in 1998.  There is no charge to income as a result of
issuance of stock under this plan.  At December 31, 1998, 105,270 shares of
common stock were reserved for issuance under this plan.


NOTE 14.  COMMITMENTS AND CONTINGENT LIABILITIES

In the normal course of business, the Company makes loan commitments (unfunded
loans and unused lines of credit) and issues standby letters of credit to
accommodate the financial needs of its customers. Standby letters of credit
commit the Company to make payments on behalf of customers under specified
conditions.  Historically, no significant losses have been incurred by the
Company under standby letters of credit.  Both arrangements have credit risk
essentially the same as that involved in extending loans to customers and are
subject to the Company's normal credit policies, including the obtaining of
collateral, where appropriate.  At December 31, 1998 and 1997, the Company's
loan commitments amounted to $267.5 million and $206.3 million, respectively.
Standby letters of credit were $8.8 million and $6.1 million at December 31,
1998 and 1997, respectively.  In addition, commitments under commercial letters
of credit used to facilitate customers' trade transactions amounted to $591,000
and $3.1 million at December 31, 1998 and 1997, respectively.

  The Company and its subsidiaries are from time to time defendants in and are
threatened with various legal proceedings arising from their regular business
activities.  Management, after consulting with legal counsel, is of the opinion
that the ultimate liability, if any, resulting from these and other pending or
threatened actions and proceedings will not have a material effect on the
financial position or results of operations of the Company and its subsidiaries.

                                      42
<PAGE>
 
NOTE 15.  FAIR VALUE OF FINANCIAL INSTRUMENTS

The following table summarizes carrying amounts and estimated fair values of
selected financial instruments as well as assumptions used by the Company in
estimating fair value:
<TABLE>
<CAPTION>
(IN THOUSANDS) DECEMBER 31,                                                                 1998               1997
                                        ASSUMPTIONS USED IN                          CARRYING     FAIR    CARRYING   FAIR      
                                       ESTIMATING FAIR VALUE                          AMOUNT      VALUE    AMOUNT    VALUE      
<S>                                  <C>                                           <C>         <C>       <C>       <C> 
ASSETS
 Cash and due from banks               Approximately equal to
                                       carrying value                                 $53,602    $53,602   $47,604   $47,604
 
 Interest-earning deposits             Approximately equal to
   with banks                          carrying value                                  22,816     22,816    28,108    28,108
 
 Securities available for sale         Quoted market prices                            99,276     99,276    61,423    61,423
 Securities held for sale              Quoted market prices                             6,358      6,505     9,679     9,754
 
 Loans held for sale                   Approximately equal to
                                       carrying value                                  10,023     10,023     4,377     4,377

 Loans                                 Discounted expected future
                                       cash flows, net of allowance
                                       for loan losses                                819,637    882,836   677,449   739,687
 
LIABILITIES
 Deposits                              Fixed-rate certificates of
                                       deposit: Discounted
                                       expected future cash flows
                                       All other deposits:
                                       Approximately equal to
                                       carrying value                                $938,345   $948,718  $740,430  $740,803
 
 Federal Home Loan Bank
   advances                            Discounted expected future
                                       cash flows                                      25,000     24,994    39,000    39,032
 
   Other borrowings
</TABLE> 

OFF-BALANCE-SHEET FINANCIAL INSTRUMENTS

The fair value of commitments is estimated based upon fees currently charged to
enter into similar agreements, taking into account the remaining terms of the
agreements and the present creditworthiness of the counterparties. For fixed
rate commitments, the fair value estimation takes into consideration an interest
rate risk factor. The fair value of guarantees and letters of credit is based on
fees currently charged for similar agreements. The fair value of these off-
balance sheet items at December 31, 1998 and 1997 approximates the recorded
amounts of the related fees.

                                      43
<PAGE>
 
NOTE 16.  PARENT COMPANY FINANCIAL INFORMATION

CONDENSED
     BALANCE SHEETS
          PARENT COMPANY ONLY

<TABLE>
<CAPTION>
(IN THOUSANDS) DECEMBER 31,                                                            1998      1997
<S>                                                                                <C>       <C>
ASSETS
Cash and due from subsidiary banks                                                             $    479
Interest-earning deposits with unrelated banks                                       $ 4,020      1,878
Securities available for sale                                                          5,998      6,794
Loans                                                                                    360        360
Investments in bank subsidiaries                                                      79,032     68,785
Premises and equipment, net                                                                          11
Other assets                                                                             304        256
- -------------------------------------------------------------------------------------------------------
 Total assets                                                                        $89,714   $ 78,563
- -------------------------------------------------------------------------------------------------------
 
LIABILITIES AND SHAREHOLDERS' EQUITY
Other liabilities                                                                    $   148   $    210
- -------------------------------------------------------------------------------------------------------
 Total liabilities                                                                       148        210
Shareholders' equity                                                                  89,566     78,353
- -------------------------------------------------------------------------------------------------------
 Total liabilities and shareholders' equity                                          $89,714   $ 78,563
=======================================================================================================
</TABLE> 

<TABLE> 
<CAPTION> 
CONDENSED STATEMENTS OF
     OPERATIONS
          PARENT COMPANY ONLY
 
(IN THOUSANDS) YEARS ENDED DECEMBER 31,                                       1998      1997       1996
INCOME
<S>                                                                       <C>       <C>       <C> 
Interest on loans                                                          $    20   $    44   $     48
Interest on securities available for sale                                      376       322         20
 
Interest-earning deposits with unrelated banks                                 154       177         53
Other                                                                           67     3,518         55
- -------------------------------------------------------------------------------------------------------
 Total income                                                                  550     4,061        176
 
EXPENSE
Compensation and employee benefits                                             (16)      313        346
Interest                                                                                            204
Other                                                                          278       330        309
- -------------------------------------------------------------------------------------------------------
 Total expenses                                                                262       643        859
- -------------------------------------------------------------------------------------------------------
Income (loss) before income tax benefit and equity in
 undistributed net income of subsidiaries                                      355     3,418       (683)
Income tax expense (benefit)                                                   100       (14)
- -------------------------------------------------------------------------------------------------------
Income (loss) before equity in undistributed net income of subsidiaries        255     3,432       (683)
Equity in undistributed net income of subsidiaries:                          9,946     5,843      5,318
- -------------------------------------------------------------------------------------------------------
Net income                                                                 $10,201   $ 9,275   $  4,635
=======================================================================================================
</TABLE>

                                      44
<PAGE>
 
CONDENSED STATEMENTS OF
     CASH FLOWS
          PARENT COMPANY ONLY

<TABLE>
<CAPTION>
(IN THOUSANDS) YEARS ENDED DECEMBER 31,                        1998      1997       1996
<S>                                                           <C>       <C>       <C>
OPERATING ACTIVITIES
 Net income                                                   $10,201   $ 9,275   $  4,635
 Adjustments to reconcile net income to net cash
   provided (used) by operating activities:
   Equity in undistributed earnings of subsidiaries            (9,946)   (5,843)    (5,318)
   Loss on sale of real estate owned                                                    41
   Provision for depreciation and amortization                     14        31         35
   Net changes in other assets and liabilities                   (124)      181       (140)
- ------------------------------------------------------------------------------------------
      Net cash provided (used) by operating activities            145     3,644       (747)
 
INVESTING ACTIVITIES
 Purchase of securities available for sale                     (5,995)   (9,792)    (4,000)
 Proceeds from maturities of securities available for sale      6,800     7,000
 Loans originated or acquired, net of principal collected                   360        134
 Contribution of capital - bank subsidiaries                             (3,500)   (16,800)
 Return of capital to parent                                                         3,800
 Proceeds from sale of real estate owned                                             3,263
 Other, net                                                         2      (162)
- ------------------------------------------------------------------------------------------
   Net cash provided (used) by investing activities               807    (6,094)   (13,603)
 
FINANCING ACTIVITIES
 Proceeds from other borrowings                                                      7,000
 Repayment of other borrowings                                                      (9,600)
 Proceeds from issuance of common stock                           711       779     20,868
- ------------------------------------------------------------------------------------------
   Net cash provided by financing activities                      711       779     18,268
- ------------------------------------------------------------------------------------------
     Increase (decrease) in cash and cash equivalents           1,663    (1,670)     3,918
Cash and cash equivalents at beginning of period                2,357     4,027        109
- ------------------------------------------------------------------------------------------
 Cash and cash equivalents at end of period                   $ 4,020   $ 2,357   $  4,027
==========================================================================================
 
Supplemental information:
 Cash paid for interest                                                           $    204
 Issuance of common stock from conversion
   of convertible subordinated notes                                                 2,509
</TABLE>

                                      45

<PAGE>
 
NOTE 17.  SUMMARY OF QUARTERLY FINANCIAL INFORMATION - UNAUDITED

Quarterly financial information for the years ended December 31, 1998 and 1997
is summarized as follows:
<TABLE>
<CAPTION>
 
(IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)     FIRST   SECOND    THIRD   FOURTH    YEAR ENDED
                                            quarter  QUARTER  QUARTER  QUARTER  DECEMBER 31,
<S>                                         <C>      <C>      <C>      <C>      <C>           
1998
Total interest income                       $17,407  $17,885  $19,009  $19,326       $73,627
Total interest expense                        7,376    7,572    8,281    8,438        31,667
- --------------------------------------------------------------------------------------------
 Net interest income                         10,031   10,313   10,728   10,888        41,960
Provision for loan losses                       550      450      450      450         1,900
Noninterest income                            2,520    2,871    3,134    3,466        11,991
Noninterest expense                           8,258    8,837    9,456   10,052        36,603
- --------------------------------------------------------------------------------------------
 Income before income tax                     3,743    3,897    3,956    3,852        15,448
Provision for income tax                      1,330    1,349    1,362    1,206         5,247
- --------------------------------------------------------------------------------------------
Net income                                  $ 2,413  $ 2,548  $ 2,594  $ 2,646       $10,201
============================================================================================
 
Net income per common share:
 Basic                                        $0.24    $0.25    $0.26    $0.26         $1.02  
 Diluted                                       0.23     0.25     0.25     0.26          0.98
 
1997
Total interest income                       $13,728  $15,183  $16,322  $16,828       $62,061
Total interest expense                        6,143    6,505    6,967    7,215        26,830
- --------------------------------------------------------------------------------------------
 Net interest income                          7,585    8,678    9,355    9,613        35,231
Provision for loan losses                       449    1,259      582    2,436         4,726
Noninterest income                            1,719    3,095    2,053    5,925        12,792
Noninterest expense                           6,904    7,418    7,607    9,305        31,234
- --------------------------------------------------------------------------------------------
 Income before income tax                     1,951    3,096    3,219    3,797        12,063
Provision for income tax                        574      918      981      315         2,788
- --------------------------------------------------------------------------------------------
Net income                                  $ 1,377  $ 2,178  $ 2,238  $ 3,482       $ 9,275
============================================================================================
Net income per common share:
 Basic                                        $0.15    $0.22    $0.23    $0.35         $0.94
 Diluted                                       0.14     0.22     0.22     0.34          0.91
</TABLE>

                                       46
<PAGE>
 
CONSOLIDATED FIVE-YEAR STATEMENTS OF
OPERATIONS/(1)/

<TABLE>
<CAPTION>

(DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
YEARS ENDED DECEMBER 31,                              1998      1997     1996     1995     1994 
<S>                                                   <C>      <C>      <C>      <C>      <C> 
INTEREST INCOME:
Loans                                                $66,858  $56,176  $43,240  $36,013  $23,199
Securities held to maturity                            4,696      628      702    1,491    1,547
Securities available for sale                            419    3,800    2,360      705      319
Deposits with banks                                    1,654    1,457    1,583      667      650
- ------------------------------------------------------------------------------------------------
 Total interest income                                73,627   62,061   47,885   38,876   25,715
 
INTEREST EXPENSE:
Deposits                                              29,759   24,775   20,370   16,369    9,121
Federal Home Loan Bank advances                        1,908    1,971    1,938    1,503    1,160
Other borrowings                                                   84      233      302      625
- ------------------------------------------------------------------------------------------------
 Total interest expense                               31,667   26,830   22,541   18,174   10,906
- ------------------------------------------------------------------------------------------------

Net Interest Income                                   41,960   35,231   25,344   20,702   14,809
Provision for loan losses                              1,900    4,726    1,635    1,382    1,107
- ------------------------------------------------------------------------------------------------
Net interest income after provision for
 loan losses                                          40,060   30,505   23,709   19,320   13,702
Noninterest income                                    11,991    9,274    6,310    4,766    3,530
Key Man Life Insurance proceeds                                 3,518
Noninterest expense                                   36,603   30,000   24,293   19,979   17,061
SAIF special assessment                                                    612
Merger expenses                                                 1,234
- ------------------------------------------------------------------------------------------------
Noninterest expense                                   36,603   31,234   24,905   19,979   17,061
 Income (loss) from continuing
 operations before income tax                         15,448   12,063    5,114    4,107      171
Provision for income tax                               5,247    2,788      479      416      156
- ------------------------------------------------------------------------------------------------
 Income (loss) from continuing operations             10,201    9,275    4,635    3,691       15
Extraordinary loss on extinguishment of debt, net                                           (154)
- -------------------------------------------------------------------------------------------------
Net income (loss)                                    $10,201  $ 9,275  $ 4,635  $ 3,691  $  (139)
=================================================================================================
 
NET INCOME PER COMMON SHARE:
Income (loss) from continuing operations               $1.02    $0.94    $0.64    $0.57    $0.00
Extraordinary loss on extinguishment of debt, net                                          (0.02)
 
Net Income (loss) Basic                                 1.02     0.94     0.64     0.57    (0.02)
Net Income (loss) Diluted                               0.98     0.91     0.63     0.56    (0.02)
 
Average number of common
 shares outstanding (basic)                           10,046    9,875    7,192    6,461    6,270
 
Average number of common
 shares outstanding (diluted)                         10,359   10,166    7,397    6,578    6,378
=================================================================================================

Total assets at end of period                     $1,059,919 $864,555 $706,448 $520,059 $394,365
Long-term obligations                                 25,000   39,000   34,000   27,695   19,735
Cash dividends
=================================================================================================
</TABLE>

/(1)/ These unaudited schedules provide selected financial information
      concerning the Company which should be read in conjunction with the
      Management Discussion and Analysis of Financial Condition and Results of
      Operations in this Annual Report.

                                       47
<PAGE>
 
CONSOLIDATED FIVE-YEAR SUMMARY OF
     AVERAGE BALANCES AND NET INTEREST REVENUE

<TABLE> 
<CAPTION> 
                                              1998           
                                   AVERAGE            AVERAGE  
(DOLLARS IN THOUSANDS)       BALANCES/(1)/  INTEREST     RATE  
<S>                              <C>       <C>        <C>      
INTEREST-EARNING ASSETS                                        
Loans:                                                         
 Commercial business              $307,174   $28,039     9.13% 
 Real estate/(2)/:                                             
   One- to four-family                                         
    residential                     96,999     8,512     8.78  
   Five or more family                                         
    residential                                                
     and commercial                                            
      properties                   264,314    23,008     8.70  
                                                               
 Consumer                           80,100     7,299     9.11  
- ---------------------------       --------   -------   ------  
   Total loans                     748,587    66,858     8.93  
                                                               
Securities/(3)/                     83,657     5,221     6.24  
Interest-earning deposits           30,949     1,654     5.35  
 with banks                       --------   -------   ------  
                                                               
   Total interest-earning                                      
    assets                         863,193    73,733     8.54  
                                                               
Noninterest-earning assets          76,081                     
- ---------------------------       --------                     
   Total assets                   $939,274                     
===========================       ========                     
                                                               
                                                               
INTEREST-BEARING LIABILITIES                                   
Certificates of deposit           $337,557   $18,917     5.60% 
Savings accounts                    39,768       997     2.51  
Interest-bearing demand and                                    
 money market accounts             287,007     9,845     3.43  
- ---------------------------       --------   -------   ------  
                                                               
   Total interest-bearing                                      
    deposits                       664,332    29,759     4.48  
                                                               
Federal Home Loan Bank                                         
 advances                           34,538     1,908     5.52  
Other borrowings                                               
- ---------------------------                                    
 Total interest-bearing                                        
  liabilities                      698,870    31,667     4.53  
                                                               
Demand and other                                               
 noninterest-bearing                                           
  deposits                         149,353                     
                                                               
Other noninterest-bearing                                      
 liabilities                         6,371                     
Shareholders' equity                84,680                     
- ---------------------------       --------                     
   Total liabilities and                                       
     shareholders' equity         $939,274                     
===========================       ========                     
 Net interest revenue                        $42,066           
===========================                  =======           
 Net interest spread                                     4.01% 
===========================                            ======  
 Net interest margin                                     4.87% 
===========================                            ======  
Average interest-earning                                       
 assets to                                                     
 average interest-bearing                              
  liabilities                                          123.51% 
===========================                            ======          
</TABLE> 

                                      48
<PAGE>
 
<TABLE> 
<CAPTION> 
                                              1997             
                                   AVERAGE            AVERAGE     
(DOLLARS IN THOUSANDS)       BALANCES/(1)/  INTEREST     RATE 
<S>                              <C>       <C>        <C>      
INTEREST-EARNING ASSETS
Loans:
 Commercial business              $218,560   $20,172    9.23%    
 Real estate/(2)/:                                                     
   One- to four-family                                                
    residential                    109,659    10,936     9.97         
   Five or more family                                                 
    residential                                                       
     and commercial                                                   
      properties                   217,412    18,727     8.61         
                                                                       
 Consumer                           68,040     6,341     9.32         
- ---------------------------       --------   -------   ------          
   Total loans                     613,671    56,176     9.15          
                                                                       
Securities/(3)/                     71,424     4,512     6.32         
Interest-earning deposits           26,389     1,457     5.52          
 with banks                       --------   -------   ------          
                                                                       
   Total interest-earning                                             
    assets                         711,484    62,145     8.73         
                                                                       
Noninterest-earning assets          53,244                            
- ---------------------------       --------                             
   Total assets                   $764,728                             
===========================       ========                             
                                                                       
                                                                      
INTEREST-BEARING LIABILITIES                                          
Certificates of deposit           $282,899   $16,017    5.66%         
Savings accounts                    38,301     1,054     2.75          
Interest-bearing demand and                                            
 money market accounts             223,514     7,704     3.45         
- ---------------------------       --------   -------   ------          
                                                                       
   Total interest-bearing                                             
    deposits                       544,714    24,775     4.55         
                                                                       
Federal Home Loan Bank                                                
 advances                           35,597     1,971     5.54         
Other borrowings                     1,681        84     5.02          
- ---------------------------       --------   -------   ------          
 Total interest-bearing                                                
  liabilities                      581,992    26,830     4.61         
                                                                       
Demand and other                                                      
 noninterest-bearing                                                  
  deposits                         111,492                            
                                                                       
Other noninterest-bearing                                             
 liabilities                         6,860                            
Shareholders' equity                64,384                             
- ---------------------------       --------                             
   Total liabilities and                                               
     shareholders' equity         $764,728                            
===========================       ========                             
 Net interest revenue                        $35,315                   
===========================                  =======                   
 Net interest spread                                    4.12%          
===========================                            ======          
 Net interest margin                                    4.96%          
===========================                            ======          
Average interest-earning                                               
 assets to                                                            
 average interest-bearing                                     
  liabilities                                         122.25%          
===========================                            ======               
                                  


                                              1996            
                                   AVERAGE            AVERAGE   
(DOLLARS IN THOUSANDS)       BALANCES/(1)/  INTEREST     RATE   

INTEREST-EARNING ASSETS                                                                            
Loans:                                                            
 Commercial business              $158,460   $14,153     8.93%   
 Real estate/(2)/:                                               
   One- to four-family                                            
    residential                    112,986    10,468     9.26    
   Five or more family                                           
    residential                                                  
     and commercial                                               
      properties                   144,340    13,473     9.33    
                                                                  
 Consumer                           58,101     5,146     8.86     
- ---------------------------       --------   -------   ------     
   Total loans                     473,887    43,240     9.12    
                                                                  
Securities/(3)/                     51,056     3,126     6.12     
Interest-earning deposits           29,998     1,583     5.28     
 with banks                       --------   -------   ------    
                                                                 
   Total interest-earning                                         
    assets                         554,941    47,949     8.64    
                                                                  
Noninterest-earning assets          40,311                        
- ---------------------------       --------                        
   Total assets                   $595,252                        
===========================       ========                       
                                                                 
                                                                 
INTEREST-BEARING LIABILITIES                                      
Certificates of deposit           $240,214   $13,771     5.73%    
Savings accounts                    32,438       943     2.91    
Interest-bearing demand and                                       
 money market accounts             160,020     5,656     3.53     
- ---------------------------       --------   -------   ------    
                                                                 
   Total interest-bearing                                         
    deposits                       432,672    20,370     4.71    
                                                                 
Federal Home Loan Bank                                            
 advances                           34,096     1,914     5.61     
Other borrowings                     3,454       257     7.44     
- ---------------------------       --------   -------   ------    
 Total interest-bearing                                           
  liabilities                      470,222    22,541     4.79    
                                                                 
Demand and other                                                 
 noninterest-bearing                                              
  deposits                          74,940                       
                                                                 
Other noninterest-bearing                                         
 liabilities                         4,421                        
Shareholders' equity                45,669                        
- ---------------------------       --------                       
   Total liabilities and                                          
     shareholders' equity         $595,252                        
===========================       ========                        
 Net interest revenue                        $25,408              
===========================                  =======              
 Net interest spread                                     3.85%    
===========================                            ======     
 Net interest margin                                     4.58%    
===========================                            ======    
Average interest-earning                                         
 assets to                                                        
 average interest-bearing                                 
  liabilities                                          118.02%   
===========================                            ======           
                                                                         

                                                                     
                                              1995                                             
                                   AVERAGE            AVERAGE                                   
(DOLLARS IN THOUSANDS)       BALANCES/(1)/  INTEREST     RATE       

INTEREST-EARNING ASSETS                
Loans:                                 
 Commercial business              $110,500   $10,855     9.82%       
 Real estate/(2)/:                                                  
   One- to four-family                                              
    residential                    113,341    10,861     9.58       
   Five or more family                                               
    residential                                                     
     and commercial                                                  
      properties                   103,878     9,942     9.57        
                                                                     
 Consumer                           45,841     4,355     9.50       
- ---------------------------       --------   -------   ------        
   Total loans                     373,560    36,013     9.64        
                                                                     
Securities/(3)/                     38,353     2,241     5.84       
Interest-earning deposits           11,055       667     6.03       
 with banks                       --------   -------   ------        
                                                                    
   Total interest-earning                                            
    assets                         422,968    38,921     9.20        
                                                                     
Noninterest-earning assets          35,370                           
- ---------------------------       --------                          
   Total assets                   $458,338                          
===========================       ========                          
                                                                     
                                                                     
INTEREST-BEARING LIABILITIES                                        
Certificates of deposit           $203,978   $11,680     5.73%       
Savings accounts                    33,145       971     2.93        
Interest-bearing demand and                                         
 money market accounts              97,326     3,718     3.82       
- ---------------------------       --------   -------   ------        
                                                                    
   Total interest-bearing                                           
    deposits                       334,449    16,369     4.89        
                                                                     
Federal Home Loan Bank                                               
 advances                           24,915     1,503     6.03       
Other borrowings                     3,331       302     9.07        
- ---------------------------       --------   -------   ------       
 Total interest-bearing                                             
  liabilities                      362,695    18,174     5.01       
                                                                     
Demand and other                                                    
 noninterest-bearing                                                
  deposits                          54,878                           
                                                                     
Other noninterest-bearing                                            
 liabilities                         3,315                          
Shareholders' equity                37,450                           
- ---------------------------       --------                           
   Total liabilities and                                             
     shareholders' equity         $458,338                           
===========================       ========                           
 Net interest revenue                        $20,747                 
===========================                  =======                       
 Net interest spread                                     4.19%             
===========================                              ====              
 Net interest margin                                     4.91%             
===========================                              ====              
Average interest-earning                                            
 assets to                                                          
 average interest-bearing                                  
  liabilities                                          116.62%      
===========================                            ======                 



                                              1994      
                                   AVERAGE            AVERAGE
(DOLLARS IN THOUSANDS)       BALANCES/(1)/  INTEREST     RATE
                                                                     
INTEREST-EARNING ASSETS                                             
Loans:                                                              
 Commercial business              $ 77,279   $ 6,561     8.49%        
 Real estate/(2)/:                                                    
   One- to four-family                                                
    residential                     90,123     7,722     8.57         
   Five or more family                                                
    residential                                                       
     and commercial                                                   
      properties                    68,584     6,418     9.36         
                                                                      
 Consumer                           28,775     2,498     8.68         
- ---------------------------       --------   -------   ------         
   Total loans                     264,761    23,199     8.76         
                                                                      
Securities/(3)/                     35,316     1,891     5.36         
Interest-earning deposits           16,172       650     4.02         
 with banks                       --------   -------   ------         
                                                                      
   Total interest-earning                                             
    assets                         316,249    25,740     8.14         
                                                                      
Noninterest-earning assets          29,805        
- ---------------------------       --------      
   Total assets                   $346,054      
===========================       ========      
                                                                      
                                                                      
INTEREST-BEARING LIABILITIES                                          
Certificates of deposit           $148,229   $ 6,795     4.58%        
Savings accounts                    41,448     1,104     2.66         
Interest-bearing demand and                                           
 money market accounts              54,789     1,222     2.23         
- ---------------------------       --------   -------   ------         
                                                                      
   Total interest-bearing                                             
    deposits                       244,466     9,121     3.73         
                                                                      
Federal Home Loan Bank                                                
 advances                           21,452     1,160     5.41         
Other borrowings                     6,329       625     9.88         
- ---------------------------       --------   -------   ------         
 Total interest-bearing                                               
  liabilities                      272,247    10,906     4.01         
                                                                      
Demand and other                                                      
 noninterest-bearing                                                  
  deposits                          36,819      
                                                                      
Other noninterest-bearing                                             
 liabilities                         2,063      
Shareholders' equity                34,925      
- ---------------------------       --------    
   Total liabilities and                                              
     shareholders' equity         $346,054      
===========================       ========      
 Net interest revenue                          $14,834                  
===========================                    =======                  
 Net interest spread                                     4.13%        
===========================                              ====         
 Net interest margin                                     4.69%        
===========================                              ====         
Average interest-earning                                              
 assets to                                                            
 average interest-bearing                                     
  liabilities                                          116.16%                                                    
===========================                            ======                
                                                                                                
</TABLE>                                                                      
/(1)/  Loans on a nonaccrual status have been included in the computation of  
       average balances.                                                      
/(2)/  Real estate average balances include real estate construction loans.   
/(3)/  Tax equivalent basis.                                                   
 
                                       49
<PAGE>
 
BOARD OF DIRECTORS, EXECUTIVE OFFICERS AND SHAREHOLDER INFORMATION


BOARD OF DIRECTORS

Richard S. DeVine
President, Chinook Resources, Inc.
Chairman, Raleigh, Schwartz & Powell, Inc.

Melanie J. Dressel
Executive Vice President,
Columbia Banking System, Inc. 
President and Chief Operating Officer, Columbia Bank

Jack Fabulich
Chairman, Parker Paint Manufacturing Co., Inc.
President and Commissioner, Port of Tacoma

Jonathan Fine
Chief Executive Officer, American Red Cross, Seattle-King County Chapter

John P. Folsom
President and Chief Executive Officer, Raleigh, Schwartz & Powell, Inc.

J. James Gallagher
Vice Chairman, Columbia Banking System, Inc. and Columbia Bank

Margel S. Gallagher
President, Viva Imports, Ltd.

W. Kelso Gillenwater
Private Investor

John A. Halleran
Private Investor

Thomas L. Matson
Owner and President, Tom Matson Dodge, Inc.

W. W. Philip
Chairman, and Chief Executive Officer, Columbia Banking System, Inc. and
Columbia Bank

John H. Powell
President and Co-owner, Sound Oil Company

Robert E. Quoidbach
Private Investor

Donald Rodman
Owner and Vice President,
Rodman Realty, Inc.

Sidney R. Snyder
Washington State Senator,
Owner of Sid's Food Market and Midtown Market

William T. Weyerhaeuser
Clinical Psychologist
Chairman, Comerco, Inc. (local telephone holding company)

James M. Will
President, Titus-Will Enterprises


EXECUTIVE OFFICERS

W. W. Philip
Chairman and Chief Executive Officer

J. James Gallagher
Vice Chairman

Melanie J. Dressel
Executive Vice President, Columbia Banking System, Inc. 
President and Chief Operating Officer, Columbia Bank

H. R. Russell
Executive Vice President, Senior Credit Officer

Gary R. Schminkey
Executive Vice President, Chief Financial Officer

Evans Q. Whitney
Executive Vice President, Retail Banking

Donald A. Andersen
Senior Vice President, Senior Loan Production Officer

Janet D. Hildebrand
Senior Vice President, Credit Administrator


SENIOR OFFICERS

Stan Ausmus
Senior Vice President, Puyallup Branch Manager

Bret M. Gagliardi
Senior Vice President, Commercial Loans, Kent Valley

Gary Gahan
Senior Vice President, Private Banking, Pierce County

Kurt Graff
Senior Vice President, Lakewood Branch Manager

Eugene Horan
Senior Vice President, Fircrest Branch Manager

Avery Johnson
Senior Vice President, Consumer Services

Trent Jonas
Senior Vice President, Commercial Loans, Gig Harbor

Gary Lindberg
Senior Vice President, Commercial Loans, Pierce County

Donald W. Lisko
Executive Vice President, Auburn/Puyallup Valley

Richard B. Martinez
Senior Vice President, Private Banking, Bellevue

Linda S. McKeag
Senior Vice President, Private Banking Manager

Racardo McLaughlin
Senior Vice President, Residential Lending

Samuel R. Noel
Executive Vice President, Southwest Region

Richard Plummer
Senior Vice President, Commercial Loans, Auburn Valley

Ernie Smith
Senior Vice President, Commercial Loans, Bellevue

Ronald D. Staples
Senior Vice President, Allenmore Branch Manager

Loran W. Todd
Senior Vice President, General Auditor

Rick W. Tunnell
Senior Vice President, Real Estate Division Manager

Brett R. Willis
Senior Vice President, Commercial Loans, Pierce County

Kenneth M. Yokoyama
Senior Vice President, Commercial Loans, Bellevue


                                       50
<PAGE>
 
CORPORATE HEADQUARTERS

Columbia Banking System, Inc.
1102 Broadway Plaza
P.O. Box 2156
Tacoma, WA
98401-2156
(253) 305-1900


INDEPENDENT AUDITORS

Deloitte & Touche LLP


TRANSFER AGENT AND REGISTRAR

American Stock Transfer & Trust Company


MARKET MAKERS

BT Alex. Brown Inc.
Everen Securities, Inc.
Herzog, Heine, Geduld, Inc.
Keefe, Bruyette & Woods, Inc.
Mayer & Schweitzer Inc.
Pacific Crest Securities
Ragen MacKenzie Inc.
Troster Singer Corp.


LEGAL COUNSEL

Gordon, Thomas, Honeywell, Malanca, Peterson & Daheim, PLLC


ANNUAL MEETING

Sheraton Tacoma Hotel
1320 Broadway Plaza
Tacoma, Washington
Wednesday, April 28, 1999
1:00 p.m.


STOCK LISTING

The Company's common stock trades on the Nasdaq National Market tier of The
Nasdaq Stock Market/sm/ under the symbol:  COLB.


FORM 10-K REPORT

Upon request, Columbia Banking System provides to shareholders a copy of the
1998 Annual Report on Form 10-K, as filed with the Securities and Exchange
Commission.  There is no charge for this information.


QUARTERLY REPORTING

In the interest of providing financial results in a timely and cost-effective
manner, the Company does not publish a formal quarterly report.  A copy of the
quarterly earnings news release is available upon request.

Immediate access to the Company's quarterly earnings news release via facsimile
is provided by Company News On Call:
(800) 758-5804, access #152519


For shareholder information,
please contact:

Jo Anne Coy
Vice President,
Marketing Director
P.O. Box 2156, MS 8300
Tacoma, WA
98401-2156
tel (253) 305-1965
fax (253) 305-0317
E-mail: [email protected]

                                      51

<PAGE>
 
                                  Exhibit 24
<PAGE>
 
                               POWER OF ATTORNEY


     The director of Columbia Banking System, Inc. (the "Company"), whose
signature appears below, hereby appoints W. W. Philip and J. James Gallagher, or
either of them, as his attorney to sign, in his name and behalf and in any and
all capacities stated below, the Company's Form 10-K Annual Report pursuant to
Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and
all amendments and other documents relating thereto as shall be necessary, such
person hereby granting to each such attorney power to act with or without the
other and full power of substitution and revocation, and hereby ratifying all
that any such attorney or his substitute may do by virtue hereof.

     This Power of Attorney has been signed by the following person in the
capacity indicated, on the 10 day of    March      , 1999.
                          ----       --------------       
<TABLE> 
<CAPTION> 
Signature                   Title
- ---------                   -----
<S>                         <C> 
/s/ Richard S. Devine       Director
- -----------------------                                                      
Richard S. Devine

</TABLE> 
<PAGE>
 
                               POWER OF ATTORNEY


     The director of Columbia Banking System, Inc. (the "Company"), whose
signature appears below, hereby appoints W. W. Philip and J. James Gallagher, or
either of them, as his attorney to sign, in his name and behalf and in any and
all capacities stated below, the Company's Form 10-K Annual Report pursuant to
Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and
all amendments and other documents relating thereto as shall be necessary, such
person hereby granting to each such attorney power to act with or without the
other and full power of substitution and revocation, and hereby ratifying all
that any such attorney or his substitute may do by virtue hereof.

     This Power of Attorney has been signed by the following person in the
capacity indicated, on the 10  day of    March      , 1999.
                          -----       --------------       
<TABLE> 
<CAPTION> 
Signature                     Title
- ---------                     -----
<S>                           <C> 
/s/ Melanie J. Dressel        Director
- ----------------------------                                                 
Melanie J. Dressel

</TABLE> 
<PAGE>
 
                               POWER OF ATTORNEY


     The director of Columbia Banking System, Inc. (the "Company"), whose
signature appears below, hereby appoints W. W. Philip and J. James Gallagher, or
either of them, as his attorney to sign, in his name and behalf and in any and
all capacities stated below, the Company's Form 10-K Annual Report pursuant to
Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and
all amendments and other documents relating thereto as shall be necessary, such
person hereby granting to each such attorney power to act with or without the
other and full power of substitution and revocation, and hereby ratifying all
that any such attorney or his substitute may do by virtue hereof.

     This Power of Attorney has been signed by the following person in the
capacity indicated, on the 10  day of    March      , 1999.
                          -----       --------------       
<TABLE> 
<CAPTION> 
Signature                     Title
- ---------                     -----
<S>                           <C> 
/s/  Jack Fabulich            Director
- ---------------------------                                                  
Jack Fabulich

</TABLE> 
<PAGE>
 
                               POWER OF ATTORNEY


     The director of Columbia Banking System, Inc. (the "Company"), whose
signature appears below, hereby appoints W. W. Philip and J. James Gallagher, or
either of them, as his attorney to sign, in his name and behalf and in any and
all capacities stated below, the Company's Form 10-K Annual Report pursuant to
Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and
all amendments and other documents relating thereto as shall be necessary, such
person hereby granting to each such attorney power to act with or without the
other and full power of substitution and revocation, and hereby ratifying all
that any such attorney or his substitute may do by virtue hereof.

     This Power of Attorney has been signed by the following person in the
capacity indicated, on the 10  day of    March      , 1999.
                          -----       --------------       
<TABLE> 
<CAPTION> 
Signature                     Title
- ---------                     -----
<S>                           <C>  
/s/  Jonathan Fine            Director
- --------------------------                                                   
Jonathan Fine

</TABLE> 
<PAGE>
 
                               POWER OF ATTORNEY


     The director of Columbia Banking System, Inc. (the "Company"), whose
signature appears below, hereby appoints W. W. Philip and J. James Gallagher, or
either of them, as his attorney to sign, in his name and behalf and in any and
all capacities stated below, the Company's Form 10-K Annual Report pursuant to
Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and
all amendments and other documents relating thereto as shall be necessary, such
person hereby granting to each such attorney power to act with or without the
other and full power of substitution and revocation, and hereby ratifying all
that any such attorney or his substitute may do by virtue hereof.

     This Power of Attorney has been signed by the following person in the
capacity indicated, on the 10 day of    March      , 1999.
                          ----       --------------       

<TABLE> 
<CAPTION> 
Signature                     Title
- ---------                     -----
<S>                           <C>  
/s/  John P. Folsom           Director
- ----------------------------                                              
John P. Folsom

</TABLE> 
<PAGE>
 
                               POWER OF ATTORNEY


     The director of Columbia Banking System, Inc. (the "Company"), whose
signature appears below, hereby appoints W. W. Philip and J. James Gallagher, or
either of them, as his attorney to sign, in his name and behalf and in any and
all capacities stated below, the Company's Form 10-K Annual Report pursuant to
Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and
all amendments and other documents relating thereto as shall be necessary, such
person hereby granting to each such attorney power to act with or without the
other and full power of substitution and revocation, and hereby ratifying all
that any such attorney or his substitute may do by virtue hereof.

     This Power of Attorney has been signed by the following person in the
capacity indicated, on the  9  day of    March      , 1999.
                          -----       --------------       

<TABLE> 
<CAPTION> 
Signature                     Title
- ---------                     -----
<S>                           <C>  
/s/ J. James Gallagher        Director
- ------------------------                                                     
J. James Gallagher

</TABLE> 
<PAGE>
 
                               POWER OF ATTORNEY


     The director of Columbia Banking System, Inc. (the "Company"), whose
signature appears below, hereby appoints W. W. Philip and J. James Gallagher, or
either of them, as his attorney to sign, in his name and behalf and in any and
all capacities stated below, the Company's Form 10-K Annual Report pursuant to
Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and
all amendments and other documents relating thereto as shall be necessary, such
person hereby granting to each such attorney power to act with or without the
other and full power of substitution and revocation, and hereby ratifying all
that any such attorney or his substitute may do by virtue hereof.

     This Power of Attorney has been signed by the following person in the
capacity indicated, on the  10 day of    March      , 1999.
                           ----       --------------       

<TABLE> 
<CAPTION> 
Signature                     Title
- ---------                     -----
<S>                           <C>  
/s/  Margel S. Gallagher      Director
- ---------------------------
Margel S. Gallagher

</TABLE> 
<PAGE>
 
                               POWER OF ATTORNEY


     The director of Columbia Banking System, Inc. (the "Company"), whose
signature appears below, hereby appoints W. W. Philip and J. James Gallagher, or
either of them, as his attorney to sign, in his name and behalf and in any and
all capacities stated below, the Company's Form 10-K Annual Report pursuant to
Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and
all amendments and other documents relating thereto as shall be necessary, such
person hereby granting to each such attorney power to act with or without the
other and full power of substitution and revocation, and hereby ratifying all
that any such attorney or his substitute may do by virtue hereof.

     This Power of Attorney has been signed by the following person in the
capacity indicated, on the 10  day of    March      , 1999.
                          -----       --------------       

<TABLE> 
<CAPTION> 
Signature                     Title
- ---------                     -----
<S>                           <C>  
/s/  W. Kelso Gillenwater     Director
- -------------------------                                                    
W. Kelso Gillenwater

</TABLE> 
<PAGE>
 
                               POWER OF ATTORNEY


     The director of Columbia Banking System, Inc. (the "Company"), whose
signature appears below, hereby appoints W. W. Philip and J. James Gallagher, or
either of them, as his attorney to sign, in his name and behalf and in any and
all capacities stated below, the Company's Form 10-K Annual Report pursuant to
Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and
all amendments and other documents relating thereto as shall be necessary, such
person hereby granting to each such attorney power to act with or without the
other and full power of substitution and revocation, and hereby ratifying all
that any such attorney or his substitute may do by virtue hereof.

     This Power of Attorney has been signed by the following person in the
capacity indicated, on the 10  day of    March      , 1999.
                          -----       --------------       

<TABLE> 
<CAPTION> 
Signature                     Title
- ---------                     -----
<S>                           <C>
/s/  John Halleran            Director
- --------------------------                                                   
John Halleran

</TABLE> 
<PAGE>
 
                               POWER OF ATTORNEY


     The director of Columbia Banking System, Inc. (the "Company"), whose
signature appears below, hereby appoints W. W. Philip and J. James Gallagher, or
either of them, as his attorney to sign, in his name and behalf and in any and
all capacities stated below, the Company's Form 10-K Annual Report pursuant to
Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and
all amendments and other documents relating thereto as shall be necessary, such
person hereby granting to each such attorney power to act with or without the
other and full power of substitution and revocation, and hereby ratifying all
that any such attorney or his substitute may do by virtue hereof.

     This Power of Attorney has been signed by the following person in the
capacity indicated, on the 10  day of    March      , 1999.
                          -----       --------------       

<TABLE> 
<CAPTION> 
Signature                     Title
- ---------                     -----
<S>                           <C>
/s/  Thomas L. Matson         Director
- ---------------------                                                        
Thomas L. Matson

</TABLE> 
<PAGE>
 
                               POWER OF ATTORNEY


     The director of Columbia Banking System, Inc. (the "Company"), whose
signature appears below, hereby appoints W. W. Philip and J. James Gallagher, or
either of them, as his attorney to sign, in his name and behalf and in any and
all capacities stated below, the Company's Form 10-K Annual Report pursuant to
Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and
all amendments and other documents relating thereto as shall be necessary, such
person hereby granting to each such attorney power to act with or without the
other and full power of substitution and revocation, and hereby ratifying all
that any such attorney or his substitute may do by virtue hereof.

     This Power of Attorney has been signed by the following person in the
capacity indicated, on the  10  day of    March      , 1999.
                          ------       --------------       

<TABLE> 
<CAPTION> 
Signature                     Title
- ---------                     -----
<S>                           <C>
/s/  John Powell              Director
- ---------------------------                                                  
John Powell

</TABLE> 
<PAGE>
 
                               POWER OF ATTORNEY


     The director of Columbia Banking System, Inc. (the "Company"), whose
signature appears below, hereby appoints W. W. Philip and J. James Gallagher, or
either of them, as his attorney to sign, in his name and behalf and in any and
all capacities stated below, the Company's Form 10-K Annual Report pursuant to
Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and
all amendments and other documents relating thereto as shall be necessary, such
person hereby granting to each such attorney power to act with or without the
other and full power of substitution and revocation, and hereby ratifying all
that any such attorney or his substitute may do by virtue hereof.

     This Power of Attorney has been signed by the following person in the
capacity indicated, on the 10 day of    March      , 1999.
                          ----       --------------       
<TABLE> 
<CAPTION> 
Signature                     Title
- ---------                     -----
<S>                           <C>
/s/  Robert E. Quoidbach      Director
- ------------------------                                                     
Robert E. Quoidbach
</TABLE> 
<PAGE>
 
                               POWER OF ATTORNEY


     The director of Columbia Banking System, Inc. (the "Company"), whose
signature appears below, hereby appoints W. W. Philip and J. James Gallagher, or
either of them, as his attorney to sign, in his name and behalf and in any and
all capacities stated below, the Company's Form 10-K Annual Report pursuant to
Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and
all amendments and other documents relating thereto as shall be necessary, such
person hereby granting to each such attorney power to act with or without the
other and full power of substitution and revocation, and hereby ratifying all
that any such attorney or his substitute may do by virtue hereof.

     This Power of Attorney has been signed by the following person in the
capacity indicated, on the  9  day of    March      , 1999.
                          -----       --------------       
<TABLE> 
<CAPTION> 
Signature                     Title
- ---------                     -----
<S>                           <C>

/s/ Donald Rodman             Director
- --------------------------                                                   
Donald Rodman
</TABLE> 
<PAGE>
 
                               POWER OF ATTORNEY


     The director of Columbia Banking System, Inc. (the "Company"), whose
signature appears below, hereby appoints W. W. Philip and J. James Gallagher, or
either of them, as his attorney to sign, in his name and behalf and in any and
all capacities stated below, the Company's Form 10-K Annual Report pursuant to
Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and
all amendments and other documents relating thereto as shall be necessary, such
person hereby granting to each such attorney power to act with or without the
other and full power of substitution and revocation, and hereby ratifying all
that any such attorney or his substitute may do by virtue hereof.

     This Power of Attorney has been signed by the following person in the
capacity indicated, on the  10  day of    March      , 1999.
                          ------       --------------       

<TABLE> 
<CAPTION> 
Signature                     Title
- ---------                     -----
<S>                           <C>

/s/  Sidney Snyder            Director
- -------------------------                                                    
Sidney Snyder

</TABLE> 
<PAGE>
 
                               POWER OF ATTORNEY


     The director of Columbia Banking System, Inc. (the "Company"), whose
signature appears below, hereby appoints W. W. Philip and J. James Gallagher, or
either of them, as his attorney to sign, in his name and behalf and in any and
all capacities stated below, the Company's Form 10-K Annual Report pursuant to
Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and
all amendments and other documents relating thereto as shall be necessary, such
person hereby granting to each such attorney power to act with or without the
other and full power of substitution and revocation, and hereby ratifying all
that any such attorney or his substitute may do by virtue hereof.

     This Power of Attorney has been signed by the following person in the
capacity indicated, on the  10 day of    March      , 1999.
                          -----       --------------       

<TABLE> 
<CAPTION> 
Signature                     Title
- ---------                     -----
<S>                           <C>
/s/ William T. Weyerhaeuser   Director
- ---------------------------                                               
William T. Weyerhaeuser
</TABLE> 
<PAGE>
 
                               POWER OF ATTORNEY


     The director of Columbia Banking System, Inc. (the "Company"), whose
signature appears below, hereby appoints W. W. Philip and J. James Gallagher, or
either of them, as his attorney to sign, in his name and behalf and in any and
all capacities stated below, the Company's Form 10-K Annual Report pursuant to
Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and
all amendments and other documents relating thereto as shall be necessary, such
person hereby granting to each such attorney power to act with or without the
other and full power of substitution and revocation, and hereby ratifying all
that any such attorney or his substitute may do by virtue hereof.

     This Power of Attorney has been signed by the following person in the
capacity indicated, on the  12  day of    March      , 1999.
                          ------       --------------       

<TABLE> 
<CAPTION> 
Signature                     Title
- ---------                     -----
<S>                           <C>
/s/ James M. Will             Director
- -------------------------                                                    
James M. Will

</TABLE> 

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   YEAR                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998             DEC-31-1997
<PERIOD-END>                               DEC-31-1998             DEC-31-1997
<CASH>                                          53,602                  47,604
<INT-BEARING-DEPOSITS>                          22,816                  28,108
<FED-FUNDS-SOLD>                                     0                       0
<TRADING-ASSETS>                                     0                       0
<INVESTMENTS-HELD-FOR-SALE>                     93,726                  56,279
<INVESTMENTS-CARRYING>                           6,358                   9,679
<INVESTMENTS-MARKET>                                 0                       0
<LOANS>                                        828,639                 685,889
<ALLOWANCE>                                      9,002                   8,440
<TOTAL-ASSETS>                               1,059,919                 864,555
<DEPOSITS>                                     938,345                 740,430
<SHORT-TERM>                                         0                       0
<LIABILITIES-OTHER>                              7,008                   6,772
<LONG-TERM>                                     25,000                  39,000
                                0                       0
                                          0                       0
<COMMON>                                        68,612                  67,901
<OTHER-SE>                                      20,954                  10,452
<TOTAL-LIABILITIES-AND-EQUITY>               1,059,919                 864,555
<INTEREST-LOAN>                                 66,858                  56,176
<INTEREST-INVEST>                                5,115                   4,428
<INTEREST-OTHER>                                 1,654                   1,457
<INTEREST-TOTAL>                                73,627                  62,061
<INTEREST-DEPOSIT>                              29,759                  24,775
<INTEREST-EXPENSE>                              31,667                  26,830
<INTEREST-INCOME-NET>                           41,960                  35,231
<LOAN-LOSSES>                                    1,900                   4,726
<SECURITIES-GAINS>                                   0                       0
<EXPENSE-OTHER>                                 36,603                  31,234
<INCOME-PRETAX>                                 15,448                  12,063
<INCOME-PRE-EXTRAORDINARY>                      10,201                   9,275
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    10,201                   9,275
<EPS-PRIMARY>                                     1.02                    0.94
<EPS-DILUTED>                                     0.98                    0.91
<YIELD-ACTUAL>                                    4.87                    4.96
<LOANS-NON>                                      3,603                   1,462
<LOANS-PAST>                                         0                       0
<LOANS-TROUBLED>                                 1,783                      20
<LOANS-PROBLEM>                                  1,862                     669
<ALLOWANCE-OPEN>                                 8,440                   5,282
<CHARGE-OFFS>                                    1,585                   1,659
<RECOVERIES>                                       247                      91
<ALLOWANCE-CLOSE>                                9,002                   8,440
<ALLOWANCE-DOMESTIC>                             9,002                   8,440
<ALLOWANCE-FOREIGN>                                  0                       0
<ALLOWANCE-UNALLOCATED>                              0                   1,542
        

</TABLE>


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission