SAFECO COMMON STOCK TRUST
NSAR-B, 2000-02-22
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<PAGE>      PAGE  1
000 B000000 12/31/1999
000 C000000 867579
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 SAFECO COMMON STOCK TRUST
001 B000000 811-6167
001 C000000 4253768213
002 A000000 10865 WILLOWS ROAD NE E-2
002 B000000 REDMOND
002 C000000 WA
002 D010000 98052
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000  8
007 C010100  1
007 C020100 SAFECO GROWTH FUND
007 C030100 N
007 C010200  2
007 C020200 SAFECO INCOME FUND
007 C030200 N
007 C010300  3
007 C020300 SAFECO EQUITY FUND
007 C030300 N
007 C010400  4
007 C020400 SAFECO NORTHWEST FUND
007 C030400 N
007 C010500  5
007 C020500 SAFECO INTERNATIONAL STOCK FUND
007 C030500 N
007 C010600  6
007 C020600 SAFECO BALANCED FUND
007 C030600 N
007 C010700  7
007 C020700 SAFECO SMALL COMPANY STOCK FUND
007 C030700 N
007 C010800  8
007 C020800 SAFECO US VALUE FUND
007 C030800 N
007 C010900  9
007 C011000 10
011 A00AA01 SAFECO SECURITIES, INC.
011 B00AA01 8-13470
011 C01AA01 SEATTLE
<PAGE>      PAGE  2
011 C02AA01 WA
011 C03AA01 98185
012 A00AA01 SAFECO SERVICES CORP.
012 B00AA01 84-00138
012 C01AA01 SEATTLE
012 C02AA01 WA
012 C03AA01 98185
013 A00AA01 ERNST & YOUNG, LLP
013 B01AA01 SEATTLE
013 B02AA01 WA
013 B03AA01 98104
018  00AA00 Y
019 A00AA00 Y
019 B00AA00   25
019 C00AA00 SAFECOFUND
020 A000001 INSTINET CORP.
020 B000001 13-3443395
020 C000001    306
020 A000002 SANFORD C BERSTEIN
020 B000002 13-2625874
020 C000002    188
020 A000003 MORGAN STANLEY
020 B000003 13-2655998
020 C000003    171
020 A000004 FIRST ANALYSIS
020 C000004    134
020 A000005 SCHRODER WERTHEIM
020 C000005    134
020 A000006 LEHMAN BROTHERS INC.
020 B000006 13-2518466
020 C000006    121
020 A000007 PAINWEBBER INC.
020 B000007 13-2638166
020 C000007    108
020 A000008 JP MORGAN INSTITUTIONAL PRIME
020 B000008 04-0194456
020 C000008     89
020 A000009 BLAIR WILLIAM & COMPANY
020 C000009     76
020 A000010 CANTOR FITZGERALD
020 B000010 13-2685763
020 C000010     71
021  000000     3677
022 A000001 ASSOCIATES CORP. OF NORTH AMERICA
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<PAGE>      PAGE  3
022 A000003 ASSOCIATES FIRST CAPITAL
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022 D000004      4842
022 A000005 SSGA PRIME MONEY MARKET PORTFOLIO
022 B000005 91-1627438
022 C000005    643231
022 D000005    654573
022 A000006 MERRILL LYNCH
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022 C000006   1007986
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022 A000007 CREDIT SUISSE FIRST BOSTON
022 B000007 13-5659485
022 C000007    919377
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022 A000008 AIM SHORT TERM INVESTMENT COMPANY
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022 C000008    254976
022 D000008    254350
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022 B000010 04-0194456
022 C000010     57842
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<PAGE>      PAGE  4
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<PAGE>      PAGE  5
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<PAGE>      PAGE  6
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<PAGE>      PAGE  7
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<PAGE>      PAGE  8
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<PAGE>      PAGE  9
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<PAGE>      PAGE  10
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008 C000201 801-8254
008 D010201 SEATTLE
008 D020201 WA
008 D030201 98185
015 A000201 STATE STREET BANK
015 B000201 C
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015 C020201 MA
015 C030201 02105
015 C040201 1713
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<PAGE>      PAGE  11
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<PAGE>      PAGE  12
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<PAGE>      PAGE  13
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<PAGE>      PAGE  14
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<PAGE>      PAGE  15
008 D030301 98185
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<PAGE>      PAGE  16
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<PAGE>      PAGE  17
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<PAGE>      PAGE  18
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<PAGE>      PAGE  19
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<PAGE>      PAGE  20
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<PAGE>      PAGE  21
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050  000400 N
051  000400 N
052  000400 N
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053 C000400 N
066 A000400 Y
066 B000400 N
066 C000400 N
066 D000400 Y
066 E000400 N
066 F000400 N
066 G000400 N
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068 A000400 N
068 B000400 N
069  000400 N
070 A010400 Y
070 A020400 N
070 B010400 Y
070 B020400 N
070 C010400 Y
070 C020400 N
070 D010400 Y
070 D020400 N
070 E010400 Y
070 E020400 N
070 F010400 Y
<PAGE>      PAGE  22
070 F020400 N
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070 G020400 N
070 H010400 Y
070 H020400 N
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070 I020400 N
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070 J020400 N
070 K010400 Y
070 K020400 Y
070 L010400 Y
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070 M020400 N
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070 N020400 N
070 O010400 Y
070 O020400 N
070 P010400 Y
070 P020400 N
070 Q010400 N
070 Q020400 N
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070 R020400 N
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<PAGE>      PAGE  23
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<PAGE>      PAGE  24
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008 D010501 SEATTLE
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008 D020502 CT
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015 A000501 CHASE MANHATTEN BANK, N.A.
015 B000501 C
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<PAGE>      PAGE  25
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<PAGE>      PAGE  26
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070 J020500 N
<PAGE>      PAGE  27
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<PAGE>      PAGE  28
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008 B000601 A
008 C000601 801-8254
008 D010601 SEATTLE
008 D020601 WA
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<PAGE>      PAGE  29
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<PAGE>      PAGE  30
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<PAGE>      PAGE  31
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<PAGE>      PAGE  32
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<PAGE>      PAGE  33
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008 B000701 A
008 C000701 801-8254
008 D010701 SEATTLE
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008 D030701 98185
015 A000701 STATE STREET BANK
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<PAGE>      PAGE  34
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<PAGE>      PAGE  35
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<PAGE>      PAGE  36
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<PAGE>      PAGE  37
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<PAGE>      PAGE  38
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008 A000801 SAFECO ASSET MANAGEMENT COMPANY
008 B000801 A
008 C000801 801-8254
008 D010801 SEATTLE
008 D020801 WA
008 D030801 98185
015 A000801 STATE STREET BANK
015 B000801 C
015 C010801 BOSTON
015 C020801 MA
015 C030801 02105
015 C040801 1713
015 E010801 X
024  000800 N
025 D000801       0
025 D000802       0
025 D000803       0
025 D000804       0
025 D000805       0
025 D000806       0
025 D000807       0
025 D000808       0
028 A010800       232
028 A020800         0
028 A030800         0
028 A040800       115
028 B010800       270
028 B020800         0
028 B030800         0
028 B040800       110
028 C010800       178
028 C020800        11
028 C030800         0
028 C040800       188
028 D010800       138
028 D020800         0
028 D030800         0
028 D040800       108
028 E010800       101
028 E020800         0
028 E030800         0
028 E040800       196
028 F010800        84
028 F020800       206
028 F030800         0
028 F040800       290
028 G010800      1003
<PAGE>      PAGE  39
028 G020800       217
028 G030800         0
028 G040800      1007
028 H000800        81
029  000800 Y
030 A000800      5
030 B000800  5.75
030 C000800  0.00
031 A000800      1
031 B000800      0
032  000800      3
033  000800      1
034  000800 Y
035  000800      2
036 A000800 N
036 B000800      0
042 A000800   0
042 B000800   0
042 C000800 100
042 D000800   0
042 E000800   0
042 F000800   0
042 G000800   0
042 H000800   0
043  000800      8
044  000800      0
045  000800 Y
046  000800 N
047  000800 Y
048  000800  0.000
048 A010800   250000
048 A020800 0.700
048 B010800   500000
048 B020800 0.650
048 C010800   500000
048 C020800 0.600
048 D010800        0
048 D020800 0.000
048 E010800        0
048 E020800 0.000
048 F010800        0
048 F020800 0.000
048 G010800        0
048 G020800 0.000
048 H010800        0
048 H020800 0.000
048 I010800        0
048 I020800 0.000
048 J010800        0
048 J020800 0.000
048 K010800  1250000
<PAGE>      PAGE  40
048 K020800 0.550
049  000800 N
050  000800 N
051  000800 N
052  000800 N
053 A000800 Y
053 B000800 Y
053 C000800 N
066 A000800 Y
066 B000800 N
066 C000800 N
066 D000800 N
066 E000800 Y
066 F000800 N
066 G000800 N
067  000800 N
068 A000800 N
068 B000800 N
069  000800 N
070 A010800 Y
070 A020800 N
070 B010800 Y
070 B020800 N
070 C010800 Y
070 C020800 N
070 D010800 Y
070 D020800 N
070 E010800 Y
070 E020800 N
070 F010800 Y
070 F020800 N
070 G010800 Y
070 G020800 N
070 H010800 Y
070 H020800 N
070 I010800 Y
070 I020800 N
070 J010800 Y
070 J020800 N
070 K010800 Y
070 K020800 Y
070 L010800 Y
070 L020800 N
070 M010800 N
070 M020800 N
070 N010800 Y
070 N020800 N
070 O010800 Y
070 O020800 N
070 P010800 Y
070 P020800 N
<PAGE>      PAGE  41
070 Q010800 N
070 Q020800 N
070 R010800 Y
070 R020800 N
071 A000800      5670
071 B000800      6031
071 C000800     10872
071 D000800   52
072 A000800 12
072 B000800       16
072 C000800      219
072 D000800        0
072 E000800        0
072 F000800       80
072 G000800        7
072 H000800        0
072 I000800       26
072 J000800        4
072 K000800        0
072 L000800       10
072 M000800        6
072 N000800       15
072 O000800        0
072 P000800        0
072 Q000800        0
072 R000800       19
072 S000800        0
072 T000800        8
072 U000800        0
072 V000800        0
072 W000800        6
072 X000800      181
072 Y000800       42
072 Z000800       96
072AA000800      451
072BB000800        0
072CC010800        0
072CC020800       51
072DD010800       93
072DD020800        1
072EE000800      452
073 A010800   0.1120
073 A020800   0.0550
073 B000800   0.5000
073 C000800   0.0000
074 A000800        0
074 B000800        0
074 C000800      315
074 D000800        0
074 E000800        0
074 F000800    10940
<PAGE>      PAGE  42
074 G000800        0
074 H000800        0
074 I000800        0
074 J000800        0
074 K000800        0
074 L000800       35
074 M000800        0
074 N000800    11290
074 O000800        0
074 P000800        0
074 Q000800        0
074 R010800        0
074 R020800        0
074 R030800        0
074 R040800      307
074 S000800        0
074 T000800    10983
074 U010800      829
074 U020800       91
074 V010800    11.95
074 V020800    11.94
074 W000800   0.0000
074 X000800     1087
074 Y000800        0
075 A000800        0
075 B000800    11212
076  000800     0.00
083 A000800 N
083 B000800        0
084 A000800 N
084 B000800        0
085 A000800 Y
085 B000800 N
SIGNATURE   DAVID F. HILL
TITLE       PRESIDENT



                Report of Independent Auditors

To  the  Shareholders and Board of Trustees  of  SAFECO  Common
Stock Trust

In   planning  and  performing  our  audit  of  the   financial
statements   of   SAFECO   Common  Stock   Trust   (comprising,
respectively,  the  SAFECO  Growth Fund,  SAFECO  Equity  Fund,
SAFECO Income Fund, SAFECO Northwest Fund, SAFECO International
Stock  Fund,  SAFECO Balanced Fund, SAFECO Small Company  Stock
Fund,  and SAFECO U.S. Value Fund) for the year ended  December
31, 1999, we considered its internal control, including control
activities  for safeguarding securities, in order to  determine
our  auditing  procedures  for the purpose  of  expressing  our
opinion  on  the  financial statements and to comply  with  the
requirements  of  Form  N-SAR,  not  to  provide  assurance  on
internal control.

The  management of SAFECO Common Stock Trust is responsible for
establishing  and maintaining internal control.  In  fulfilling
this responsibility, estimates and judgments by management  are
required  to assess the expected benefits and related costs  of
controls.   Generally, controls that are relevant to  an  audit
pertain  to  the  entity's  objective  of  preparing  financial
statements  for external purposes that are fairly presented  in
conformity with generally accepted accounting principles in the
United  States.   Those controls include  the  safeguarding  of
assets against unauthorized acquisition, use or disposition.

Because  of inherent limitations in internal control, error  or
fraud  may occur and not be detected.  Also, projection of  any
evaluation of internal control to future periods is subject  to
the  risk  that it may become inadequate because of changes  in
conditions  or  that  the  effectiveness  of  the  design   and
operation may deteriorate.

Our  consideration  of internal control would  not  necessarily
disclose all matters in internal control that might be material
weaknesses   under  standards  established  by   the   American
Institute of Certified Public Accountants.  A material weakness
is  a condition in which the design or operation of one or more
of  the  internal  control components  does  not  reduce  to  a
relatively  low  level  the risk that misstatements  caused  by
error or fraud in amounts that would be material in relation to
the  financial statements being audited may occur  and  not  be
detected  within  a timely period by employees  in  the  normal
course  of  performing their assigned functions.   However,  we
noted  no matters involving internal control and its operation,
including  controls  for  safeguarding  securities,   that   we
consider to be material weaknesses as defined above at December
31, 1999.

This  report is intended solely for the information and use  of
management, the Board of Trustees of SAFECO Common Stock Trust,
and  the Securities and Exchange Commission and is not intended
to  be  and  should  not  be used by anyone  other  than  these
specified parties.


                                         /s/  ERNST & YOUNG LLP

Seattle, Washington
February 4, 2000




Shareholder Meeting (Unaudited)

A joint special meeting  of the Funds' shareholders was held on March 30, 1999,
at which time the shareholders voted to approve changes to the Funds'
fundamental investment policies and approved an amended and restated investment
advisory contract, including a change in the fee structure.  Shareholders
elected the Board of Trustees and ratified the selection of
Ernst & Young LLP as independent auditiors.  The results of that meeting are
presented below.


(In Thousands)

Proposal    	   Trust/Fund          For    Against    Abstain

Elect Boh A. Dickey
		  Common Stock Trust        93,436    4,372

Elect Barbara J. Dingfield
		  Common Stock Trust        93,416    4,392

Elect David F. Hill
		  Common Stock Trust        93,451    4,356

Elect Richard W. Hubbard
		  Common Stock Trust        93,430    4,377

Elect Richard E. Lundgren
		  Common Stock Trust        93,463    4,344

Elect Larry L. Pinnt
		  Common Stock Trust        93,456    4,351

Elect John W. Schneider
		  Common Stock Trust        93,467    4,340

Selection of Ernst & Young LLP
		  Common Stock Trust        93,848    1,313    2,648

Fundamental Investment Policies
		  Growth Fund               24,660    1,336    6,430
              Equity Fund               38,199    2,881    6,711
              Income Fund                8,319      551      805
              Northwest Fund             2,010      175      247
              International Fund         1,359       51      100
              Balanced Fund              1,145        8       74
              Small Company Fund         1,624       76      368
              U.S. Value Fund              524       38      117

Investment Advisory Contract
		  Growth Fund               22,587    3,380    6,459
              Equity Fund               36,457    4,598    6,737
              Income Fund                7,942      908      824
              Northwest Fund             1,963      220      244
              International Fund         1,318      103       88
              Balanced Fund              1,098       54       76
              Small Company Fund         1,563      146      360
              U.S. Value Fund              531       41      108

WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

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<NAME> SAFECO COMMON STOCK TRUST
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<CURRENCY> U.S. DOLLARS

<S>                             <C>
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<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                      16,750
<SHARES-COMMON-STOCK>                          1,524
<SHARES-COMMON-PRIOR>                          1,566
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<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                        (709)
<NET-ASSETS>                                  18,008
<DIVIDEND-INCOME>                                284
<INTEREST-INCOME>                                560
<OTHER-INCOME>                                     0
<EXPENSES-TOTAL>                                 292
<NET-INVESTMENT-INCOME>                          552
<REALIZED-GAINS-CURRENT>                         438
<APPREC-INCREASE-CURRENT>                       (709)
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<DISTRIBUTIONS-OF-INCOME>                        481
<DISTRIBUTIONS-OF-GAINS>                         344
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                          453
<NUMBER-OF-SHARES-REDEEMED>                     (539)
<SHARES-REINVESTED>                               44
<NET-CHANGE-IN-ASSETS>                         1,048
<ACCUMULATED-NII-PRIOR>                          505
<ACCUMULATED-GAINS-PRIOR>                        890
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                            166
<INTEREST-EXPENSE>                                 0
<GROSS-EXPENSE>                                  342
<AVERAGE-NET-ASSETS>                          19,251
<PER-SHARE-NAV-BEGIN>                          12.22
<PER-SHARE-NII>                                 0.31
<PER-SHARE-GAIN-APPREC>                        (0.18)
<PER-SHARE-DIVIDEND>                           (0.31)
<PER-SHARE-DISTRIBUTIONS>                      (0.23)
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            11.81
<EXPENSE-RATIO>                                 1.14
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

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<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 6
   <NAME> SAFECO BALANCED FUND CLASS A
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

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<REALIZED-GAINS-CURRENT>                         438
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<OVERDIST-NET-GAINS-PRIOR>                         0
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<INTEREST-EXPENSE>                                 0
<GROSS-EXPENSE>                                  342
<AVERAGE-NET-ASSETS>                           1,496
<PER-SHARE-NAV-BEGIN>                          12.23
<PER-SHARE-NII>                                 0.22
<PER-SHARE-GAIN-APPREC>                        (0.13)
<PER-SHARE-DIVIDEND>                           (0.22)
<PER-SHARE-DISTRIBUTIONS>                      (0.23)
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            11.87
<EXPENSE-RATIO>                                 1.36
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 6
   <NAME> SAFECO BALANCED FUND CLASS B
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                         21,974
<INVESTMENTS-AT-VALUE>                        23,205
<RECEIVABLES>                                    193
<ASSETS-OTHER>                                     0
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                                23,398
<PAYABLE-FOR-SECURITIES>                           0
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<OTHER-ITEMS-LIABILITIES>                        264
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<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                       2,572
<SHARES-COMMON-STOCK>                            216
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<OVERDISTRIBUTION-NII>                             0
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<OVERDISTRIBUTION-GAINS>                           0
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<NET-ASSETS>                                   2,553
<DIVIDEND-INCOME>                                284
<INTEREST-INCOME>                                560
<OTHER-INCOME>                                     0
<EXPENSES-TOTAL>                                 292
<NET-INVESTMENT-INCOME>                          552
<REALIZED-GAINS-CURRENT>                         438
<APPREC-INCREASE-CURRENT>                       (709)
<NET-CHANGE-FROM-OPS>                            281
<EQUALIZATION>                                     0
<DISTRIBUTIONS-OF-INCOME>                         37
<DISTRIBUTIONS-OF-GAINS>                          49
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                           93
<NUMBER-OF-SHARES-REDEEMED>                      (52)
<SHARES-REINVESTED>                                7
<NET-CHANGE-IN-ASSETS>                         1,048
<ACCUMULATED-NII-PRIOR>                          505
<ACCUMULATED-GAINS-PRIOR>                        890
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                            166
<INTEREST-EXPENSE>                                 0
<GROSS-EXPENSE>                                  342
<AVERAGE-NET-ASSETS>                           2,474
<PER-SHARE-NAV-BEGIN>                          12.24
<PER-SHARE-NII>                                 0.18
<PER-SHARE-GAIN-APPREC>                        (0.18)
<PER-SHARE-DIVIDEND>                           (0.18)
<PER-SHARE-DISTRIBUTIONS>                      (0.23)
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            11.83
<EXPENSE-RATIO>                                 2.14
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 3
   <NAME> SAFECO EQUITY FUND NO-LOAD CLASS
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                      1,546,368
<INVESTMENTS-AT-VALUE>                     2,244,126
<RECEIVABLES>                                  3,755
<ASSETS-OTHER>                                     0
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                             2,247,881
<PAYABLE-FOR-SECURITIES>                           0
<SENIOR-LONG-TERM-DEBT>                            0
<OTHER-ITEMS-LIABILITIES>                     10,697
<TOTAL-LIABILITIES>                           10,697
<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                   1,459,827
<SHARES-COMMON-STOCK>                         89,379
<SHARES-COMMON-PRIOR>                         87,101
<ACCUMULATED-NII-CURRENT>                     16,044
<OVERDISTRIBUTION-NII>                             0
<ACCUMULATED-NET-GAINS>                      108,724
<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                      72,979
<NET-ASSETS>                               2,237,184
<DIVIDEND-INCOME>                             32,457
<INTEREST-INCOME>                              2,991
<OTHER-INCOME>                                     0
<EXPENSES-TOTAL>                              19,339
<NET-INVESTMENT-INCOME>                       16,109
<REALIZED-GAINS-CURRENT>                     108,654
<APPREC-INCREASE-CURRENT>                     72,979
<NET-CHANGE-FROM-OPS>                        197,742
<EQUALIZATION>                                     0
<DISTRIBUTIONS-OF-INCOME>                     15,806
<DISTRIBUTIONS-OF-GAINS>                     104,376
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                       22,947
<NUMBER-OF-SHARES-REDEEMED>                  (25,424)
<SHARES-REINVESTED>                            4,755
<NET-CHANGE-IN-ASSETS>                       144,721
<ACCUMULATED-NII-PRIOR>                       17,446
<ACCUMULATED-GAINS-PRIOR>                     79,369
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                         12,814
<INTEREST-EXPENSE>                                 1
<GROSS-EXPENSE>                               19,363
<AVERAGE-NET-ASSETS>                       2,193,152
<PER-SHARE-NAV-BEGIN>                          23.25
<PER-SHARE-NII>                                 0.18
<PER-SHARE-GAIN-APPREC>                         2.00
<PER-SHARE-DIVIDEND>                           (0.18)
<PER-SHARE-DISTRIBUTIONS>                      (1.23)
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            24.02
<EXPENSE-RATIO>                                 0.83
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 3
   <NAME> SAFECO EQUITY FUND CLASS A
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                      1,546,368
<INVESTMENTS-AT-VALUE>                     2,244,126
<RECEIVABLES>                                  3,755
<ASSETS-OTHER>                                     0
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                             2,247,881
<PAYABLE-FOR-SECURITIES>                           0
<SENIOR-LONG-TERM-DEBT>                            0
<OTHER-ITEMS-LIABILITIES>                     10,697
<TOTAL-LIABILITIES>                           10,697
<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                      53,176
<SHARES-COMMON-STOCK>                          2,561
<SHARES-COMMON-PRIOR>                          2,164
<ACCUMULATED-NII-CURRENT>                     16,044
<OVERDISTRIBUTION-NII>                             0
<ACCUMULATED-NET-GAINS>                      108,724
<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                      72,979
<NET-ASSETS>                                  61,625
<DIVIDEND-INCOME>                             32,457
<INTEREST-INCOME>                              2,991
<OTHER-INCOME>                                     0
<EXPENSES-TOTAL>                              19,339
<NET-INVESTMENT-INCOME>                       16,109
<REALIZED-GAINS-CURRENT>                     108,654
<APPREC-INCREASE-CURRENT>                     72,979
<NET-CHANGE-FROM-OPS>                        197,742
<EQUALIZATION>                                     0
<DISTRIBUTIONS-OF-INCOME>                        255
<DISTRIBUTIONS-OF-GAINS>                       2,993
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                          784
<NUMBER-OF-SHARES-REDEEMED>                     (518)
<SHARES-REINVESTED>                              132
<NET-CHANGE-IN-ASSETS>                       144,721
<ACCUMULATED-NII-PRIOR>                       17,446
<ACCUMULATED-GAINS-PRIOR>                     79,369
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                         12,814
<INTEREST-EXPENSE>                                 1
<GROSS-EXPENSE>                               19,363
<AVERAGE-NET-ASSETS>                          59,236
<PER-SHARE-NAV-BEGIN>                          23.27
<PER-SHARE-NII>                                 0.11
<PER-SHARE-GAIN-APPREC>                         2.02
<PER-SHARE-DIVIDEND>                           (0.11)
<PER-SHARE-DISTRIBUTIONS>                      (1.23)
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            24.06
<EXPENSE-RATIO>                                 1.12
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 3
   <NAME> SAFECO EQUITY FUND CLASS B
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                      1,546,368
<INVESTMENTS-AT-VALUE>                     2,244,126
<RECEIVABLES>                                  3,755
<ASSETS-OTHER>                                     0
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                             2,247,881
<PAYABLE-FOR-SECURITIES>                           0
<SENIOR-LONG-TERM-DEBT>                            0
<OTHER-ITEMS-LIABILITIES>                     10,697
<TOTAL-LIABILITIES>                           10,697
<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                      26,445
<SHARES-COMMON-STOCK>                          1,186
<SHARES-COMMON-PRIOR>                            744
<ACCUMULATED-NII-CURRENT>                     16,044
<OVERDISTRIBUTION-NII>                             0
<ACCUMULATED-NET-GAINS>                      108,724
<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                      72,979
<NET-ASSETS>                                  28,260
<DIVIDEND-INCOME>                             32,457
<INTEREST-INCOME>                              2,991
<OTHER-INCOME>                                     0
<EXPENSES-TOTAL>                              19,339
<NET-INVESTMENT-INCOME>                       16,109
<REALIZED-GAINS-CURRENT>                     108,654
<APPREC-INCREASE-CURRENT>                     72,979
<NET-CHANGE-FROM-OPS>                        197,742
<EQUALIZATION>                                     0
<DISTRIBUTIONS-OF-INCOME>                          0
<DISTRIBUTIONS-OF-GAINS>                       1,372
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                          540
<NUMBER-OF-SHARES-REDEEMED>                     (156)
<SHARES-REINVESTED>                               57
<NET-CHANGE-IN-ASSETS>                       144,721
<ACCUMULATED-NII-PRIOR>                       17,446
<ACCUMULATED-GAINS-PRIOR>                     79,369
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                         12,814
<INTEREST-EXPENSE>                                 1
<GROSS-EXPENSE>                               19,363
<AVERAGE-NET-ASSETS>                          24,268
<PER-SHARE-NAV-BEGIN>                          23.15
<PER-SHARE-NII>                                (0.07)
<PER-SHARE-GAIN-APPREC>                         0.75
<PER-SHARE-DIVIDEND>                            0.00
<PER-SHARE-DISTRIBUTIONS>                      (1.23)
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            23.83
<EXPENSE-RATIO>                                 1.95
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 1
   <NAME> SAFECO GROWTH FUND NO-LOAD CLASS
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                        DEC-31-1999
<PERIOD-START>                           JAN-01-1999
<PERIOD-END>                             DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                        858,375
<INVESTMENTS-AT-VALUE>                       858,383
<RECEIVABLES>                                  5,764
<ASSETS-OTHER>                                     0
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                               864,147
<PAYABLE-FOR-SECURITIES>                       3,813
<SENIOR-LONG-TERM-DEBT>                            0
<OTHER-ITEMS-LIABILITIES>                      3,059
<TOTAL-LIABILITIES>                            6,872
<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                     849,008
<SHARES-COMMON-STOCK>                         34,982
<SHARES-COMMON-PRIOR>                         61,427
<ACCUMULATED-NII-CURRENT>                     (6,033)
<OVERDISTRIBUTION-NII>                             0
<ACCUMULATED-NET-GAINS>                      (30,207)
<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                       8,592
<NET-ASSETS>                                 857,275
<DIVIDEND-INCOME>                              4,423
<INTEREST-INCOME>                                239
<OTHER-INCOME>                                     0
<EXPENSES-TOTAL>                              10,695
<NET-INVESTMENT-INCOME>                       (6,033)
<REALIZED-GAINS-CURRENT>                     (30,246)
<APPREC-INCREASE-CURRENT>                      8,592
<NET-CHANGE-FROM-OPS>                        (27,687)
<EQUALIZATION>                                     0
<DISTRIBUTIONS-OF-INCOME>                          0
<DISTRIBUTIONS-OF-GAINS>                           0
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                       26,975
<NUMBER-OF-SHARES-REDEEMED>                  (53,419)
<SHARES-REINVESTED>                                0
<NET-CHANGE-IN-ASSETS>                      (586,231)
<ACCUMULATED-NII-PRIOR>                         (918)
<ACCUMULATED-GAINS-PRIOR>                     44,781
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                          6,137
<INTEREST-EXPENSE>                               390
<GROSS-EXPENSE>                               11,271
<AVERAGE-NET-ASSETS>                         983,336
<PER-SHARE-NAV-BEGIN>                          22.70
<PER-SHARE-NII>                                (0.16)
<PER-SHARE-GAIN-APPREC>                         0.76
<PER-SHARE-DIVIDEND>                            0.00
<PER-SHARE-DISTRIBUTIONS>                       0.00
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            23.30
<EXPENSE-RATIO>                              1.02
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                               0



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 1
   <NAME> SAFECO GROWTH FUND CLASS A
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                        DEC-31-1999
<PERIOD-START>                           JAN-01-1999
<PERIOD-END>                             DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                        858,375
<INVESTMENTS-AT-VALUE>                       858,383
<RECEIVABLES>                                  5,764
<ASSETS-OTHER>                                     0
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                               864,147
<PAYABLE-FOR-SECURITIES>                       3,813
<SENIOR-LONG-TERM-DEBT>                            0
<OTHER-ITEMS-LIABILITIES>                      3,059
<TOTAL-LIABILITIES>                            6,872
<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                      30,145
<SHARES-COMMON-STOCK>                          1,189
<SHARES-COMMON-PRIOR>                          1,488
<ACCUMULATED-NII-CURRENT>                     (6,033)
<OVERDISTRIBUTION-NII>                             0
<ACCUMULATED-NET-GAINS>                      (30,207)
<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                       8,592
<NET-ASSETS>                                  27,597
<DIVIDEND-INCOME>                              4,423
<INTEREST-INCOME>                                239
<OTHER-INCOME>                                     0
<EXPENSES-TOTAL>                              10,695
<NET-INVESTMENT-INCOME>                       (6,033)
<REALIZED-GAINS-CURRENT>                     (30,246)
<APPREC-INCREASE-CURRENT>                      8,592
<NET-CHANGE-FROM-OPS>                        (27,687)
<EQUALIZATION>                                     0
<DISTRIBUTIONS-OF-INCOME>                          0
<DISTRIBUTIONS-OF-GAINS>                           0
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                          536
<NUMBER-OF-SHARES-REDEEMED>                     (835)
<SHARES-REINVESTED>                                0
<NET-CHANGE-IN-ASSETS>                      (586,231)
<ACCUMULATED-NII-PRIOR>                         (918)
<ACCUMULATED-GAINS-PRIOR>                     44,781
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                          6,137
<INTEREST-EXPENSE>                               390
<GROSS-EXPENSE>                               11,271
<AVERAGE-NET-ASSETS>                          28,610
<PER-SHARE-NAV-BEGIN>                          22.66
<PER-SHARE-NII>                                (0.19)
<PER-SHARE-GAIN-APPREC>                         0.74
<PER-SHARE-DIVIDEND>                            0.00
<PER-SHARE-DISTRIBUTIONS>                       0.00
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            23.21
<EXPENSE-RATIO>                                 1.23
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                               0



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 1
   <NAME> SAFECO GROWTH FUND CLASS B
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                        DEC-31-1999
<PERIOD-START>                           JAN-01-1999
<PERIOD-END>                             DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                        858,375
<INVESTMENTS-AT-VALUE>                       858,383
<RECEIVABLES>                                  5,764
<ASSETS-OTHER>                                     0
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                               864,147
<PAYABLE-FOR-SECURITIES>                       3,813
<SENIOR-LONG-TERM-DEBT>                            0
<OTHER-ITEMS-LIABILITIES>                      3,059
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<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                      15,645
<SHARES-COMMON-STOCK>                            649
<SHARES-COMMON-PRIOR>                            701
<ACCUMULATED-NII-CURRENT>                     (6,033)
<OVERDISTRIBUTION-NII>                             0
<ACCUMULATED-NET-GAINS>                      (30,207)
<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                       8,592
<NET-ASSETS>                                  14,637
<DIVIDEND-INCOME>                              4,423
<INTEREST-INCOME>                                239
<OTHER-INCOME>                                     0
<EXPENSES-TOTAL>                              10,695
<NET-INVESTMENT-INCOME>                       (6,033)
<REALIZED-GAINS-CURRENT>                     (30,246)
<APPREC-INCREASE-CURRENT>                      8,592
<NET-CHANGE-FROM-OPS>                        (27,687)
<EQUALIZATION>                                     0
<DISTRIBUTIONS-OF-INCOME>                          0
<DISTRIBUTIONS-OF-GAINS>                           0
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                          211
<NUMBER-OF-SHARES-REDEEMED>                     (264)
<SHARES-REINVESTED>                                0
<NET-CHANGE-IN-ASSETS>                      (586,231)
<ACCUMULATED-NII-PRIOR>                         (918)
<ACCUMULATED-GAINS-PRIOR>                     44,781
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                          6,137
<INTEREST-EXPENSE>                               390
<GROSS-EXPENSE>                               11,271
<AVERAGE-NET-ASSETS>                          14,400
<PER-SHARE-NAV-BEGIN>                          22.21
<PER-SHARE-NII>                                (0.35)
<PER-SHARE-GAIN-APPREC>                         0.71
<PER-SHARE-DIVIDEND>                               0
<PER-SHARE-DISTRIBUTIONS>                       0.00
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            22.57
<EXPENSE-RATIO>                                 2.02
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                               0



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 2
   <NAME> SAFECO INCOME FUND NO-LOAD CLASS
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                        234,471
<INVESTMENTS-AT-VALUE>                       309,849
<RECEIVABLES>                                    980
<ASSETS-OTHER>                                     0
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                               310,829
<PAYABLE-FOR-SECURITIES>                           0
<SENIOR-LONG-TERM-DEBT>                            0
<OTHER-ITEMS-LIABILITIES>                      2,881
<TOTAL-LIABILITIES>                            2,881
<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                     227,795
<SHARES-COMMON-STOCK>                         13,555
<SHARES-COMMON-PRIOR>                         17,014
<ACCUMULATED-NII-CURRENT>                      7,463
<OVERDISTRIBUTION-NII>                             0
<ACCUMULATED-NET-GAINS>                       11,162
<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                     (17,088)
<NET-ASSETS>                                 303,537
<DIVIDEND-INCOME>                              9,667
<INTEREST-INCOME>                              1,229
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<EXPENSES-TOTAL>                               3,429
<NET-INVESTMENT-INCOME>                        7,467
<REALIZED-GAINS-CURRENT>                      11,161
<APPREC-INCREASE-CURRENT>                    (17,088)
<NET-CHANGE-FROM-OPS>                          1,540
<EQUALIZATION>                                     0
<DISTRIBUTIONS-OF-INCOME>                      7,391
<DISTRIBUTIONS-OF-GAINS>                      10,871
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                        1,419
<NUMBER-OF-SHARES-REDEEMED>                   (5,594)
<SHARES-REINVESTED>                              717
<NET-CHANGE-IN-ASSETS>                       (95,580)
<ACCUMULATED-NII-PRIOR>                            0
<ACCUMULATED-GAINS-PRIOR>                          0
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                          2,300
<INTEREST-EXPENSE>                                 0
<GROSS-EXPENSE>                                3,437
<AVERAGE-NET-ASSETS>                         338,950
<PER-SHARE-NAV-BEGIN>                          23.47
<PER-SHARE-NII>                                 0.50
<PER-SHARE-GAIN-APPREC>                        (0.25)
<PER-SHARE-DIVIDEND>                           (0.50)
<PER-SHARE-DISTRIBUTIONS>                      (0.83)
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            22.39
<EXPENSE-RATIO>                                 0.99
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 2
   <NAME> SAFECO INCOME FUND CLASS A
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                        234,471
<INVESTMENTS-AT-VALUE>                       309,849
<RECEIVABLES>                                    980
<ASSETS-OTHER>                                     0
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                               310,829
<PAYABLE-FOR-SECURITIES>                           0
<SENIOR-LONG-TERM-DEBT>                            0
<OTHER-ITEMS-LIABILITIES>                      2,881
<TOTAL-LIABILITIES>                            2,881
<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                       2,216
<SHARES-COMMON-STOCK>                             91
<SHARES-COMMON-PRIOR>                             88
<ACCUMULATED-NII-CURRENT>                      7,463
<OVERDISTRIBUTION-NII>                             0
<ACCUMULATED-NET-GAINS>                       11,162
<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                     (17,088)
<NET-ASSETS>                                   2,046
<DIVIDEND-INCOME>                              9,667
<INTEREST-INCOME>                              1,229
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<NET-INVESTMENT-INCOME>                        7,467
<REALIZED-GAINS-CURRENT>                      11,161
<APPREC-INCREASE-CURRENT>                    (17,088)
<NET-CHANGE-FROM-OPS>                          1,540
<EQUALIZATION>                                     0
<DISTRIBUTIONS-OF-INCOME>                         42
<DISTRIBUTIONS-OF-GAINS>                          73
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                           41
<NUMBER-OF-SHARES-REDEEMED>                      (42)
<SHARES-REINVESTED>                                4
<NET-CHANGE-IN-ASSETS>                       (95,580)
<ACCUMULATED-NII-PRIOR>                            0
<ACCUMULATED-GAINS-PRIOR>                          0
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                          2,300
<INTEREST-EXPENSE>                                 0
<GROSS-EXPENSE>                                3,437
<AVERAGE-NET-ASSETS>                           2,261
<PER-SHARE-NAV-BEGIN>                          23.55
<PER-SHARE-NII>                                 0.42
<PER-SHARE-GAIN-APPREC>                        (0.20)
<PER-SHARE-DIVIDEND>                           (0.42)
<PER-SHARE-DISTRIBUTIONS>                      (0.83)
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            22.52
<EXPENSE-RATIO>                                 1.31
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 2
   <NAME> SAFECO INCOME FUND CLASS B
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                        234,471
<INVESTMENTS-AT-VALUE>                       309,849
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<ASSETS-OTHER>                                     0
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                               310,829
<PAYABLE-FOR-SECURITIES>                           0
<SENIOR-LONG-TERM-DEBT>                            0
<OTHER-ITEMS-LIABILITIES>                      2,881
<TOTAL-LIABILITIES>                            2,881
<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                       2,562
<SHARES-COMMON-STOCK>                            105
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<ACCUMULATED-NII-CURRENT>                      7,463
<OVERDISTRIBUTION-NII>                             0
<ACCUMULATED-NET-GAINS>                       11,162
<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                     (17,088)
<NET-ASSETS>                                   2,365
<DIVIDEND-INCOME>                              9,667
<INTEREST-INCOME>                              1,229
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<NET-INVESTMENT-INCOME>                        7,467
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<APPREC-INCREASE-CURRENT>                    (17,088)
<NET-CHANGE-FROM-OPS>                          1,540
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<DISTRIBUTIONS-OF-INCOME>                         25
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<NUMBER-OF-SHARES-SOLD>                           35
<NUMBER-OF-SHARES-REDEEMED>                      (27)
<SHARES-REINVESTED>                                4
<NET-CHANGE-IN-ASSETS>                       (95,580)
<ACCUMULATED-NII-PRIOR>                       10,977
<ACCUMULATED-GAINS-PRIOR>                     20,424
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                          2,300
<INTEREST-EXPENSE>                                 0
<GROSS-EXPENSE>                                3,437
<AVERAGE-NET-ASSETS>                           2,330
<PER-SHARE-NAV-BEGIN>                          23.57
<PER-SHARE-NII>                                 0.25
<PER-SHARE-GAIN-APPREC>                        (0.21)
<PER-SHARE-DIVIDEND>                           (0.25)
<PER-SHARE-DISTRIBUTIONS>                      (0.83)
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            22.53
<EXPENSE-RATIO>                                 2.06
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 5
   <NAME> SAFECO INTERNATIONAL FUND NO-LOAD CLASS
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                         25,673
<INVESTMENTS-AT-VALUE>                        38,242
<RECEIVABLES>                                    360
<ASSETS-OTHER>                                 1,135
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                                39,737
<PAYABLE-FOR-SECURITIES>                           0
<SENIOR-LONG-TERM-DEBT>                            0
<OTHER-ITEMS-LIABILITIES>                        163
<TOTAL-LIABILITIES>                              163
<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                      25,361
<SHARES-COMMON-STOCK>                          2,181
<SHARES-COMMON-PRIOR>                          1,682
<ACCUMULATED-NII-CURRENT>                         49
<OVERDISTRIBUTION-NII>                             0
<ACCUMULATED-NET-GAINS>                         (190)
<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                       7,927
<NET-ASSETS>                                  36,967
<DIVIDEND-INCOME>                                453
<INTEREST-INCOME>                                 44
<OTHER-INCOME>                                     0
<EXPENSES-TOTAL>                                 448
<NET-INVESTMENT-INCOME>                           49
<REALIZED-GAINS-CURRENT>                         488
<APPREC-INCREASE-CURRENT>                      7,927
<NET-CHANGE-FROM-OPS>                          8,464
<EQUALIZATION>                                     0
<DISTRIBUTIONS-OF-INCOME>                          0
<DISTRIBUTIONS-OF-GAINS>                           0
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                        3,678
<NUMBER-OF-SHARES-REDEEMED>                   (3,179)
<SHARES-REINVESTED>                                0
<NET-CHANGE-IN-ASSETS>                        16,057
<ACCUMULATED-NII-PRIOR>                           14
<ACCUMULATED-GAINS-PRIOR>                       (910)
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                            301
<INTEREST-EXPENSE>                                 0
<GROSS-EXPENSE>                                  521
<AVERAGE-NET-ASSETS>                          27,439
<PER-SHARE-NAV-BEGIN>                          13.14
<PER-SHARE-NII>                                 0.03
<PER-SHARE-GAIN-APPREC>                         3.78
<PER-SHARE-DIVIDEND>                            0.00
<PER-SHARE-DISTRIBUTIONS>                       0.00
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            16.95
<EXPENSE-RATIO>                                 1.48
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 5
   <NAME> SAFECO INTERNATIONAL FUND CLASS A
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                         25,673
<INVESTMENTS-AT-VALUE>                        38,242
<RECEIVABLES>                                    360
<ASSETS-OTHER>                                 1,135
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                                39,737
<PAYABLE-FOR-SECURITIES>                           0
<SENIOR-LONG-TERM-DEBT>                            0
<OTHER-ITEMS-LIABILITIES>                        163
<TOTAL-LIABILITIES>                              163
<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                         889
<SHARES-COMMON-STOCK>                             72
<SHARES-COMMON-PRIOR>                             48
<ACCUMULATED-NII-CURRENT>                         49
<OVERDISTRIBUTION-NII>                             0
<ACCUMULATED-NET-GAINS>                         (190)
<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                       7,927
<NET-ASSETS>                                   1,215
<DIVIDEND-INCOME>                                453
<INTEREST-INCOME>                                 44
<OTHER-INCOME>                                     0
<EXPENSES-TOTAL>                                 448
<NET-INVESTMENT-INCOME>                           49
<REALIZED-GAINS-CURRENT>                         488
<APPREC-INCREASE-CURRENT>                      7,927
<NET-CHANGE-FROM-OPS>                          8,464
<EQUALIZATION>                                     0
<DISTRIBUTIONS-OF-INCOME>                          0
<DISTRIBUTIONS-OF-GAINS>                           0
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                           47
<NUMBER-OF-SHARES-REDEEMED>                      (23)
<SHARES-REINVESTED>                                0
<NET-CHANGE-IN-ASSETS>                        16,057
<ACCUMULATED-NII-PRIOR>                           14
<ACCUMULATED-GAINS-PRIOR>                       (910)
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                            301
<INTEREST-EXPENSE>                                 0
<GROSS-EXPENSE>                                  521
<AVERAGE-NET-ASSETS>                             892
<PER-SHARE-NAV-BEGIN>                          13.13
<PER-SHARE-NII>                                (0.01)
<PER-SHARE-GAIN-APPREC>                         3.77
<PER-SHARE-DIVIDEND>                            0.00
<PER-SHARE-DISTRIBUTIONS>                       0.00
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            16.89
<EXPENSE-RATIO>                                 1.73
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 5
   <NAME> SAFECO INTERNATIONAL FUND CLASS B
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                         25,673
<INVESTMENTS-AT-VALUE>                        38,242
<RECEIVABLES>                                    360
<ASSETS-OTHER>                                 1,135
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                                39,737
<PAYABLE-FOR-SECURITIES>                           0
<SENIOR-LONG-TERM-DEBT>                            0
<OTHER-ITEMS-LIABILITIES>                        163
<TOTAL-LIABILITIES>                              163
<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                       1,037
<SHARES-COMMON-STOCK>                             84
<SHARES-COMMON-PRIOR>                             60
<ACCUMULATED-NII-CURRENT>                         49
<OVERDISTRIBUTION-NII>                             0
<ACCUMULATED-NET-GAINS>                         (190)
<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                       7,927
<NET-ASSETS>                                   1,392
<DIVIDEND-INCOME>                                453
<INTEREST-INCOME>                                 44
<OTHER-INCOME>                                     0
<EXPENSES-TOTAL>                                 448
<NET-INVESTMENT-INCOME>                           49
<REALIZED-GAINS-CURRENT>                         488
<APPREC-INCREASE-CURRENT>                      7,927
<NET-CHANGE-FROM-OPS>                          8,464
<EQUALIZATION>                                     0
<DISTRIBUTIONS-OF-INCOME>                          0
<DISTRIBUTIONS-OF-GAINS>                           0
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                           35
<NUMBER-OF-SHARES-REDEEMED>                      (11)
<SHARES-REINVESTED>                                0
<NET-CHANGE-IN-ASSETS>                        16,057
<ACCUMULATED-NII-PRIOR>                           14
<ACCUMULATED-GAINS-PRIOR>                       (910)
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                            301
<INTEREST-EXPENSE>                                 0
<GROSS-EXPENSE>                                  521
<AVERAGE-NET-ASSETS>                           1,020
<PER-SHARE-NAV-BEGIN>                          12.99
<PER-SHARE-NII>                                (0.10)
<PER-SHARE-GAIN-APPREC>                         3.67
<PER-SHARE-DIVIDEND>                            0.00
<PER-SHARE-DISTRIBUTIONS>                       0.00
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            16.56
<EXPENSE-RATIO>                                 2.51
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 4
   <NAME> SAFECO NORTHWEST FUND NO-LOAD CLASS
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                         58,723
<INVESTMENTS-AT-VALUE>                       107,764
<RECEIVABLES>                                    875
<ASSETS-OTHER>                                     0
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                               108,639
<PAYABLE-FOR-SECURITIES>                           0
<SENIOR-LONG-TERM-DEBT>                            0
<OTHER-ITEMS-LIABILITIES>                      1,489
<TOTAL-LIABILITIES>                            1,489
<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                      50,855
<SHARES-COMMON-STOCK>                          3,851
<SHARES-COMMON-PRIOR>                          3,587
<ACCUMULATED-NII-CURRENT>                       (443)
<OVERDISTRIBUTION-NII>                             0
<ACCUMULATED-NET-GAINS>                        8,393
<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                      28,195
<NET-ASSETS>                                  97,534
<DIVIDEND-INCOME>                                365
<INTEREST-INCOME>                                 59
<OTHER-INCOME>                                     0
<EXPENSES-TOTAL>                                 868
<NET-INVESTMENT-INCOME>                         (444)
<REALIZED-GAINS-CURRENT>                       8,020
<APPREC-INCREASE-CURRENT>                     28,195
<NET-CHANGE-FROM-OPS>                         35,771
<EQUALIZATION>                                     0
<DISTRIBUTIONS-OF-INCOME>                          0
<DISTRIBUTIONS-OF-GAINS>                       7,222
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                        1,370
<NUMBER-OF-SHARES-REDEEMED>                   (1,343)
<SHARES-REINVESTED>                              238
<NET-CHANGE-IN-ASSETS>                        38,745
<ACCUMULATED-NII-PRIOR>                         (373)
<ACCUMULATED-GAINS-PRIOR>                      1,091
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                            534
<INTEREST-EXPENSE>                                 0
<GROSS-EXPENSE>                                  929
<AVERAGE-NET-ASSETS>                          68,983
<PER-SHARE-NAV-BEGIN>                          17.73
<PER-SHARE-NII>                                (0.10)
<PER-SHARE-GAIN-APPREC>                         9.71
<PER-SHARE-DIVIDEND>                            0.00
<PER-SHARE-DISTRIBUTIONS>                      (2.01)
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            25.33
<EXPENSE-RATIO>                                 1.10
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 4
   <NAME> SAFECO NORTHWEST FUND CLASS A
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                         58,723
<INVESTMENTS-AT-VALUE>                       107,764
<RECEIVABLES>                                    875
<ASSETS-OTHER>                                     0
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                               108,639
<PAYABLE-FOR-SECURITIES>                           0
<SENIOR-LONG-TERM-DEBT>                            0
<OTHER-ITEMS-LIABILITIES>                      1,489
<TOTAL-LIABILITIES>                            1,489
<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                       3,556
<SHARES-COMMON-STOCK>                            191
<SHARES-COMMON-PRIOR>                            126
<ACCUMULATED-NII-CURRENT>                       (443)
<OVERDISTRIBUTION-NII>                             0
<ACCUMULATED-NET-GAINS>                        8,393
<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                      28,195
<NET-ASSETS>                                   4,774
<DIVIDEND-INCOME>                                365
<INTEREST-INCOME>                                 59
<OTHER-INCOME>                                     0
<EXPENSES-TOTAL>                                 868
<NET-INVESTMENT-INCOME>                         (444)
<REALIZED-GAINS-CURRENT>                       8,020
<APPREC-INCREASE-CURRENT>                     28,195
<NET-CHANGE-FROM-OPS>                         35,771
<EQUALIZATION>                                     0
<DISTRIBUTIONS-OF-INCOME>                          0
<DISTRIBUTIONS-OF-GAINS>                         358
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                           78
<NUMBER-OF-SHARES-REDEEMED>                      (26)
<SHARES-REINVESTED>                               13
<NET-CHANGE-IN-ASSETS>                        38,745
<ACCUMULATED-NII-PRIOR>                         (373)
<ACCUMULATED-GAINS-PRIOR>                      1,091
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                            534
<INTEREST-EXPENSE>                                 0
<GROSS-EXPENSE>                                  929
<AVERAGE-NET-ASSETS>                           2,774
<PER-SHARE-NAV-BEGIN>                          17.56
<PER-SHARE-NII>                                (0.12)
<PER-SHARE-GAIN-APPREC>                         9.58
<PER-SHARE-DIVIDEND>                            0.00
<PER-SHARE-DISTRIBUTIONS>                      (2.01)
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            25.01
<EXPENSE-RATIO>                                 1.36
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 4
   <NAME> SAFECO NORTHWEST FUND CLASS B
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                         58,723
<INVESTMENTS-AT-VALUE>                       107,764
<RECEIVABLES>                                    875
<ASSETS-OTHER>                                     0
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                               108,639
<PAYABLE-FOR-SECURITIES>                           0
<SENIOR-LONG-TERM-DEBT>                            0
<OTHER-ITEMS-LIABILITIES>                      1,489
<TOTAL-LIABILITIES>                            1,489
<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                       3,699
<SHARES-COMMON-STOCK>                            198
<SHARES-COMMON-PRIOR>                            150
<ACCUMULATED-NII-CURRENT>                       (443)
<OVERDISTRIBUTION-NII>                             0
<ACCUMULATED-NET-GAINS>                        8,393
<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                      28,195
<NET-ASSETS>                                   4,842
<DIVIDEND-INCOME>                                365
<INTEREST-INCOME>                                 59
<OTHER-INCOME>                                     0
<EXPENSES-TOTAL>                                 868
<NET-INVESTMENT-INCOME>                         (444)
<REALIZED-GAINS-CURRENT>                       8,020
<APPREC-INCREASE-CURRENT>                     28,195
<NET-CHANGE-FROM-OPS>                         35,771
<EQUALIZATION>                                     0
<DISTRIBUTIONS-OF-INCOME>                          0
<DISTRIBUTIONS-OF-GAINS>                         370
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                           49
<NUMBER-OF-SHARES-REDEEMED>                      (16)
<SHARES-REINVESTED>                               14
<NET-CHANGE-IN-ASSETS>                        38,745
<ACCUMULATED-NII-PRIOR>                         (373)
<ACCUMULATED-GAINS-PRIOR>                      1,091
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                            534
<INTEREST-EXPENSE>                                 0
<GROSS-EXPENSE>                                  929
<AVERAGE-NET-ASSETS>                           3,255
<PER-SHARE-NAV-BEGIN>                          17.31
<PER-SHARE-NII>                                (0.25)
<PER-SHARE-GAIN-APPREC>                         9.41
<PER-SHARE-DIVIDEND>                            0.00
<PER-SHARE-DISTRIBUTIONS>                      (2.01)
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            24.46
<EXPENSE-RATIO>                                 2.12
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 7
   <NAME> SAFECO SMALL COMPANY FUND NO-LOAD CLASS
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                         28,117
<INVESTMENTS-AT-VALUE>                        32,062
<RECEIVABLES>                                    152
<ASSETS-OTHER>                                     0
<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                                32,214
<PAYABLE-FOR-SECURITIES>                       1,406
<SENIOR-LONG-TERM-DEBT>                            0
<OTHER-ITEMS-LIABILITIES>                        148
<TOTAL-LIABILITIES>                            1,554
<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                      34,271
<SHARES-COMMON-STOCK>                          2,225
<SHARES-COMMON-PRIOR>                          3,150
<ACCUMULATED-NII-CURRENT>                       (163)
<OVERDISTRIBUTION-NII>                             0
<ACCUMULATED-NET-GAINS>                      (10,162)
<OVERDISTRIBUTION-GAINS>                           0
<ACCUM-APPREC-OR-DEPREC>                       9,193
<NET-ASSETS>                                  28,319
<DIVIDEND-INCOME>                                112
<INTEREST-INCOME>                                105
<OTHER-INCOME>                                     0
<EXPENSES-TOTAL>                                 380
<NET-INVESTMENT-INCOME>                         (163)
<REALIZED-GAINS-CURRENT>                      (5,990)
<APPREC-INCREASE-CURRENT>                      9,193
<NET-CHANGE-FROM-OPS>                          3,040
<EQUALIZATION>                                     0
<DISTRIBUTIONS-OF-INCOME>                          0
<DISTRIBUTIONS-OF-GAINS>                           0
<DISTRIBUTIONS-OTHER>                              0
<NUMBER-OF-SHARES-SOLD>                        3,426
<NUMBER-OF-SHARES-REDEEMED>                   (4,351)
<SHARES-REINVESTED>                                0
<NET-CHANGE-IN-ASSETS>                        (6,756)
<ACCUMULATED-NII-PRIOR>                         (220)
<ACCUMULATED-GAINS-PRIOR>                     (4,172)
<OVERDISTRIB-NII-PRIOR>                            0
<OVERDIST-NET-GAINS-PRIOR>                         0
<GROSS-ADVISORY-FEES>                            239
<INTEREST-EXPENSE>                                 1
<GROSS-EXPENSE>                                  459
<AVERAGE-NET-ASSETS>                          28,512
<PER-SHARE-NAV-BEGIN>                          11.16
<PER-SHARE-NII>                                (0.06)
<PER-SHARE-GAIN-APPREC>                         1.63
<PER-SHARE-DIVIDEND>                            0.00
<PER-SHARE-DISTRIBUTIONS>                       0.00
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            12.73
<EXPENSE-RATIO>                                 1.20
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 7
   <NAME> SAFECO SMALL COMPANY FUND CLASS A
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                         28,117
<INVESTMENTS-AT-VALUE>                        32,062
<RECEIVABLES>                                    152
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<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                                32,214
<PAYABLE-FOR-SECURITIES>                       1,406
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<ACCUMULATED-NII-CURRENT>                       (163)
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<NUMBER-OF-SHARES-SOLD>                           33
<NUMBER-OF-SHARES-REDEEMED>                      (59)
<SHARES-REINVESTED>                                0
<NET-CHANGE-IN-ASSETS>                        (6,756)
<ACCUMULATED-NII-PRIOR>                         (220)
<ACCUMULATED-GAINS-PRIOR>                     (4,172)
<OVERDISTRIB-NII-PRIOR>                            0
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<GROSS-ADVISORY-FEES>                            239
<INTEREST-EXPENSE>                                 1
<GROSS-EXPENSE>                                  459
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<PER-SHARE-NAV-BEGIN>                          11.09
<PER-SHARE-NII>                                (0.09)
<PER-SHARE-GAIN-APPREC>                         1.55
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<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            12.55
<EXPENSE-RATIO>                                 1.47
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 7
   <NAME> SAFECO SMALL COMPANY FUND CLASS B
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                         28,117
<INVESTMENTS-AT-VALUE>                        32,062
<RECEIVABLES>                                    152
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<OTHER-ITEMS-ASSETS>                               0
<TOTAL-ASSETS>                                32,214
<PAYABLE-FOR-SECURITIES>                       1,406
<SENIOR-LONG-TERM-DEBT>                            0
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<TOTAL-LIABILITIES>                            1,554
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<PAID-IN-CAPITAL-COMMON>                       1,370
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<ACCUMULATED-NII-CURRENT>                       (163)
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<NET-INVESTMENT-INCOME>                         (163)
<REALIZED-GAINS-CURRENT>                      (5,990)
<APPREC-INCREASE-CURRENT>                      9,193
<NET-CHANGE-FROM-OPS>                          3,040
<EQUALIZATION>                                     0
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<SHARES-REINVESTED>                                0
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<ACCUMULATED-GAINS-PRIOR>                     (4,172)
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<GROSS-ADVISORY-FEES>                            239
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<GROSS-EXPENSE>                                  459
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<PER-SHARE-NAV-BEGIN>                          10.88
<PER-SHARE-NII>                                (0.16)
<PER-SHARE-GAIN-APPREC>                         1.50
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<EXPENSE-RATIO>                                 2.21
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 8
   <NAME> SAFECO US VALUE FUND NO-LOAD CLASS
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                         10,048
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<PAYABLE-FOR-SECURITIES>                           0
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<SENIOR-EQUITY>                                    0
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<ACCUM-APPREC-OR-DEPREC>                         (51)
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<REALIZED-GAINS-CURRENT>                         451
<APPREC-INCREASE-CURRENT>                        (51)
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<DISTRIBUTIONS-OF-INCOME>                         93
<DISTRIBUTIONS-OF-GAINS>                         408
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<NUMBER-OF-SHARES-SOLD>                          163
<NUMBER-OF-SHARES-REDEEMED>                     (189)
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<ACCUMULATED-GAINS-PRIOR>                        464
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<GROSS-EXPENSE>                                  181
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<PER-SHARE-NII>                                 0.11
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<EXPENSE-RATIO>                                 1.17
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 8
   <NAME> SAFECO US VALUE FUND CLASS A
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                    1
<INVESTMENTS-AT-COST>                         10,048
<INVESTMENTS-AT-VALUE>                        11,255
<RECEIVABLES>                                     35
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<SENIOR-EQUITY>                                    0
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<NUMBER-OF-SHARES-REDEEMED>                       (5)
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<ACCUMULATED-GAINS-PRIOR>                        464
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<PER-SHARE-NAV-BEGIN>                          11.93
<PER-SHARE-NII>                                 0.06
<PER-SHARE-GAIN-APPREC>                         0.51
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<EXPENSE-RATIO>                                 1.40
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000867579
<NAME> SAFECO COMMON STOCK TRUST
<SERIES>
   <NUMBER> 8
   <NAME> SAFECO US VALUE FUND CLASS B
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   ANNUAL
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<PERIOD-START>                            JAN-01-1999
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<EXCHANGE-RATE>                                    1
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<RECEIVABLES>                                     35
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<SENIOR-EQUITY>                                    0
<PAID-IN-CAPITAL-COMMON>                         731
<SHARES-COMMON-STOCK>                             63
<SHARES-COMMON-PRIOR>                             53
<ACCUMULATED-NII-CURRENT>                         94
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<SHARES-REINVESTED>                                2
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<ACCUMULATED-NII-PRIOR>                          102
<ACCUMULATED-GAINS-PRIOR>                        464
<OVERDISTRIB-NII-PRIOR>                            0
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<GROSS-ADVISORY-FEES>                             80
<INTEREST-EXPENSE>                                 0
<GROSS-EXPENSE>                                  181
<AVERAGE-NET-ASSETS>                             718
<PER-SHARE-NAV-BEGIN>                          11.91
<PER-SHARE-NII>                                (0.04)
<PER-SHARE-GAIN-APPREC>                         0.01
<PER-SHARE-DIVIDEND>                            0.00
<PER-SHARE-DISTRIBUTIONS>                      (0.50)
<RETURNS-OF-CAPITAL>                               0
<PER-SHARE-NAV-END>                            11.88
<EXPENSE-RATIO>                                 2.18
[AVG-DEBT-OUTSTANDING]                             0
[AVG-DEBT-PER-SHARE]                            0.00



</TABLE>


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