VANGUARD CALIFORNIA TAX FREE FUND
497, 1998-04-01
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<PAGE>
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                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                                   Form N-1A

                  REGISTRATION STATEMENT (NO. 33-1569) UNDER
                          THE SECURITIES ACT OF 1933
                          Pre-Effective Amendment No.
                        Post-Effective Amendment No. 14
                                      and


              REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY
                                  ACT OF 1940
                                Amendment No. 17


                              VANGUARD CALIFORNIA
                                 TAX-FREE FUND
              (Exact Name of Registrant as Specified in Charter)


                                 P.O. Box 2600
                            Valley Forge, PA 19482
                    (Address of Principal Executive Office)

                 Registrant's Telephone Number (610) 669-1000


                         Raymond J. Klapinsky, Esquire
                                 P.O. Box 876
                            Valley Forge, PA 19482


  It is hereby requested that this filing become effective on March 27, 1998,
      pursuant to paragraph(b) of Rule 485 of the Securities Act of 1933.


                 Approximate Date of Proposed Public Offering:
  As soon as practicable after this Registration Statement becomes effective.


     We have elected to register an indefinite number of shares pursuant to
Regulation 24f-2 under the Investment Company Act of 1940. We filed our Rule
24f-2 Notice for the year ended November 30, 1997 on February 27, 1998.

================================================================================
<PAGE>

VANGUARD CALIFORNIA TAX-FREE FUND



Prospectus
March 27, 1998





Money Market
Portfolio

Insured
Intermediate-Term
Portfolio

Insured Long-Term
Portfolio

This prospectus contains financial data for the Fund through the
fiscal year ended November 30, 1997.





                          [GRAPHIC OF SHIP]



                                                       [VANGUARD LOGO]


<PAGE>


VANGUARD CALIFORNIA TAX-FREE FUND



A Federal and California State
Tax-Exempt Income Mutual Fund

CONTENTS

Portfolio Profile         1

Portfolio Expenses        3

Financial Highlights      4

A Word About Risk         6

The Portfolios'
Objectives                6

Who Should Invest         6

Investment Strategy       7

Investment Policies      11

Investment Limitations   13

Investment
Performance              13

Share Price              14

Dividends, Capital
Gains, and Taxes         14

The Portfolios and
Vanguard                 15

Investment Adviser       15

General Information      16

Investing with
Vanguard                 17

Services and
Account Features         17

Types of Accounts        18

Distribution Options     18

Buying Shares            18

Redeeming Shares         20

Transferring
Registration             23

Portfolio and Account
Updates                  23

Glossary  Inside Back Cover

<PAGE>

INVESTMENT OBJECTIVES AND POLICIES
Vanguard California Tax-Free Fund (the "Fund") is a nondiversified,
open-end investment company that includes three separate mutual fund
portfolios: Money Market, Insured Intermediate-Term, and Insured
Long-Term (the "Portfolios").

   Each Portfolio, intended for California residents only, seeks to
provide income that is exempt from both federal and California
personal income taxes. The Money Market Portfolio also seeks to
maintain a constant net asset value of $1 per share. The Money Market
Portfolio emphasizes stability; the Insured Intermediate-Term and
Insured Long-Term Portfolios emphasize income over stability.

   IT IS IMPORTANT TO NOTE THAT ALTHOUGH THE MONEY MARKET PORTFOLIO
SEEKS TO MAINTAIN A STABLE NET ASSET VALUE OF $1 PER SHARE, THIS VALUE
IS NOT GUARANTEED. NONE OF THE PORTFOLIOS' SHARES ARE GUARANTEED OR
INSURED BY THE FDIC OR ANY OTHER AGENCY OF THE U.S. GOVERNMENT OR THE
STATE OF CALIFORNIA. ALTHOUGH THE INTEREST AND PRINCIPAL PAYMENTS FOR
AT LEAST 65% OF THE BONDS IN THE INSURED INTERMEDIATE-TERM PORTFOLIO
AND FOR AT LEAST 80% OF THE BONDS IN THE INSURED LONG-TERM PORTFOLIO
ARE GUARANTEED, THE VALUE OF THE BONDS THEMSELVES IS NOT GUARANTEED.
AS WITH ANY INVESTMENT IN BONDS, WHICH ARE SENSITIVE TO CHANGES IN
INTEREST RATES, YOU COULD LOSE MONEY BY INVESTING IN ANY OF THE
PORTFOLIOS.

FEES AND EXPENSES
The Portfolios are offered on a no-load basis, which means that you
pay no sales commissions or 12b-1 marketing fees. You will, however,
incur expenses for investment advisory, management, administrative,
and distribution services, which are included in each Portfolio's
expense ratio.

ADDITIONAL INFORMATION ABOUT THE PORTFOLIOS
A Statement of Additional Information (dated March 27, 1998)
containing more information about the Portfolios is, by reference,
part of this prospectus and may be obtained without charge by writing
to Vanguard, calling our Investor Information Department at
1-800-662-7447, or visiting the Securities and Exchange Commission's
website (www.sec.gov).
   
WHY READING THIS PROSPECTUS IS IMPORTANT
This prospectus explains the objectives, risks, and strategy of each
Portfolio of Vanguard California Tax-Free Fund. To highlight terms and
concepts important to mutual fund investors, we have provided "Plain
Talk" explanations along the way. Reading the prospectus will help you
to decide which Portfolio, if any, is the right investment for you. We
suggest that you keep it for future reference.
    
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION, NOR HAS THE SECURITIES AND EXCHANGE COMMISSION PASSED UPON
THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY
IS A CRIMINAL OFFENSE.



<PAGE>
PORTFOLIO PROFILE                             Vanguard California Tax-Free Fund


WHO SHOULD INVEST (page 6)
\ \ California residents seeking a municipal bond mutual fund as part of a
    balanced and diversified investment program.
\ \ Income-oriented California residents in a high tax bracket.

WHO SHOULD NOT INVEST
\ \ Investors primarily seeking growth of their investment over time.
\ \ Investors unwilling to accept significant fluctuations in share price (this 
    applies to the Insured Intermediate-Term and Insured Long-Term Portfolios).
\ \ Investors in a retirement account.
   
RISKS OF THE PORTFOLIOS (pages 6-11)
All three Portfolios are subject to income risk (the chance that falling
interest rates will cause a Portfolio's income to decline) and objective risk
(the chance that a particular segment of the municipal bond market--such as
long-term or California-issued bonds--will trail returns from the overall
municipal bond market). The Insured Intermediate-Term and Insured Long-Term
Portfolios are also subject to interest rate risk (the chance that bond prices
will decline because of rising interest rates).
    
   The Money Market Portfolio seeks to maintain, but does not guarantee, a
constant net asset value of $1 per share. The Money Market Portfolio may invest
a significant portion of its assets in a single issuer. As a result, the
Portfolio is riskier than other types of money market funds that require greater
diversification among issuers. The total returns of the Insured
Intermediate-Term and Insured Long-Term Portfolios will fluctuate within a wide
range, so an investor could lose money over short or even extended periods in
these Portfolios. More detailed information about risk--including risks specific
to each Portfolio--is provided beginning on page 6.

DIVIDENDS AND CAPITAL GAINS (page 14)
Dividends are declared daily and paid on the first business day of each month.
Capital gains, if any, are paid annually in December.

INVESTMENT ADVISER (page 15)
Vanguard Fixed Income Group, Valley Forge, Pa., manages all three Portfolios.

MINIMUM INITIAL INVESTMENT: $3,000; $1,000 for custodial accounts for minors

ACCOUNT FEATURES (page 17)
\ \ Telephone Redemption
\ \ Checkwriting
\ \ Vanguard Direct Deposit Service(TM)
\ \ Vanguard Automatic Exchange Servicesm
\ \ Vanguard Fund Express(R)
\ \ Vanguard Dividend Expresssm

AVERAGE ANNUAL TOTAL RETURNS--
PERIODS ENDED NOVEMBER 30, 1997

                                   1 YEAR            5 YEARS           10 YEARS
- --------------------------------------------------------------------------------
California Money Market
  Portfolio                         3.4%               3.1%              4.0%
Lipper Calif. Tax-Exempt
  Money Market Average              3.0                2.7               3.6
- --------------------------------------------------------------------------------
California Insured
  Intermediate-Term Portfolio       5.9%               6.8%*              --
Lipper Calif. Intermediate
  Municipal Debt                    5.4                5.9*               --
- --------------------------------------------------------------------------------
California Insured Long-Term
  Portfolio                         6.5%               7.5%              8.8%
Lipper Calif. Insured Municipal
  Bond Average                      6.4                6.7               8.1
- --------------------------------------------------------------------------------
*Since Portfolio's inception date of March 4, 1994.

IN EVALUATING PAST PERFORMANCE, REMEMBER THAT IT IS NOT INDICATIVE OF FUTURE
PERFORMANCE. PERFORMANCE FIGURES INCLUDE THE REINVESTMENT OF ANY DIVIDEND AND
CAPITAL GAINS DISTRIBUTIONS. THE RETURNS SHOWN ARE NET OF EXPENSES. NOTE, TOO,
THAT BOTH THE RETURN AND (EXCEPT FOR THE MONEY MARKET PORTFOLIO) PRINCIPAL VALUE
OF AN INVESTMENT WILL FLUCTUATE, SO INVESTORS' SHARES, WHEN REDEEMED, MAY BE
WORTH MORE OR LESS THAN THEIR ORIGINAL COST.

                                       1
<PAGE>

PORTFOLIO PROFILE (CONTINUED)


                                               Vanguard California Tax-Free Fund
- --------------------------------------------------------------------------------
                                                      INSURED           INSURED
                                  MONEY MARKET    INTERMEDIATE-TERM    LONG-TERM
- --------------------------------------------------------------------------------
Inception Date:                     6/1/1987          3/4/1994        4/7/1986
Net Assets as of 11/30/1997:      $1.8 billion      $596 million    $1.2 billion
Portfolio's Expense Ratio for
   the Year Ended 11/30/1997:         0.18%             0.18%           0.16%
Loads, 12b-1 Marketing Fee:           None              None            None
Suitable for IRAs:                     No                No              No
Newspaper Abbreviation:              VangCA*           CAInsIT         CAInsLT
CUSIP Number:                       922021209         922021308       922021100
Quotron Symbol:                      VCTXX.Q           VCAIX.Q         VCITX.Q
Vanguard Fund Number:                  062               100             075
- --------------------------------------------------------------------------------
*Money market funds are listed separately from the daily mutual fund listings.

                                       2

<PAGE>

PORTFOLIO EXPENSES

The examples below are designed to help you understand the various costs you 
would bear, directly or indirectly, as an investor in one or more of the 
Portfolios.
         As noted in this table, you do not pay fees of any kind when you buy,
sell, or exchange shares of any Portfolio:

SHAREHOLDER TRANSACTION EXPENSES
Sales Load Imposed on Purchases:                            None
Sales Load Imposed on Reinvested Dividends:                 None
Redemption Fees:                                            None
Exchange Fees:                                              None

         The next table illustrates the operating expenses that you would incur
as a shareholder of each Portfolio. These expenses are deducted from the
Portfolio's income before it is paid to you. Expenses include investment
advisory fees as well as the costs of maintaining accounts, administering a
Portfolio, providing shareholder services, and other activities. The expenses
shown in the tables are based upon those incurred in the fiscal year ended
November 30, 1997.
   
ANNUAL PORTFOLIO OPERATING EXPENSES
- --------------------------------------------------------------------------------
                                                      INSURED
                                          MONEY    INTERMEDIATE-    INSURED
                                         MARKET        TERM        LONG-TERM
- --------------------------------------------------------------------------------
Management and
   Administrative Expenses:               0.13%        0.13%         0.12%
Investment Advisory Expenses:             0.01%        0.01%         0.01%
12b-1 Marketing Fees:                     None         None          None
Other Expenses
   Marketing and Distribution Costs:   0.03%        0.03%         0.02%
   Fund Insurance:                     None         None          None
   Miscellaneous Expenses:             0.01%        0.01%         0.01%
                                       -----        -----         -----
Total Other Expenses:                     0.04%        0.04%         0.03%
                                          ----         ----          ----
   TOTAL OPERATING EXPENSES
      (EXPENSE RATIO):                    0.18%        0.18%         0.16%
                                          ====         ====          ====
    
                                PLAIN TALK ABOUT
                             THE COSTS OF INVESTING

Costs are an important consideration in choosing a mutual fund. That's because
you, as a shareholder, pay the costs of operating a fund plus any transaction
costs associated with buying, selling, or exchanging shares. These costs can
erode a substantial portion of the gross income or capital appreciation a fund
achieves. Even seemingly small differences in fund expenses can, over time, have
a dramatic impact on a fund's performance.

                                PLAIN TALK ABOUT
                                  FUND EXPENSES

All mutual funds have operating expenses. These expenses, which are deducted
from a fund's gross income, are expressed as a percentage of the net assets of
the fund. For example, the Insured Long-Term Portfolio's expense ratio in fiscal
year 1997 was 0.16%, or $1.60 per $1,000 of average net assets. The average
tax-exempt bond mutual fund (excluding money market funds) had expenses during
1997 of 1.03%, or $10.30 per $1,000 of average net assets, according to Lipper
Analytical Services, which reports on the mutual fund industry.


                                       3

<PAGE>
                                PLAIN TALK ABOUT
                   HOW TO READ THE FINANCIAL HIGHLIGHTS TABLE

This explanation uses the Money Market Portfolio as an example. The Portfolio
began fiscal year 1997 with a net asset value (price) of $1 per share. During
the year, the Portfolio earned $0.034 per share from investment income
(interest). All of these earnings were returned to shareholders in the form of
dividend distributions. The earnings ($0.034 per share) less distributions
($0.034 per share) resulted in a share price of $1 at the end of the fiscal
year. Assum-ing that the shareholder had reinvested the distribution in the
purchase of more shares, total return from the Portfolio was 3.41% for the year.
         As of November 30, 1997, the Portfolio had $1.80 billion in net assets;
an expense ratio of 0.18% ($1.80 per $1,000 of net assets); and net investment
income amounting to 3.35% of its average net assets.

         The following example is intended to help you compare the cost of
investing in a Portfolio with the cost of investing in other mutual funds, by
illustrating the hypothetical expenses that you would incur on a $1,000
investment over various periods. The example assumes that (1) the Portfolio
provides a return of 5% a year and (2) you redeem your investment at the end of
each period.

- --------------------------------------------------------------------------------
PORTFOLIO                          1 YEAR    3 YEARS      5 YEARS       10 YEARS
- --------------------------------------------------------------------------------
Money Market                         $2        $6           $10           $23
Insured Intermediate-Term             2         6            10            23
Insured Long-Term                     2         5             9            20
- --------------------------------------------------------------------------------

THIS EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF ACTUAL EXPENSES OR
PERFORMANCE FROM THE PAST OR FOR THE FUTURE, WHICH MAY BE HIGHER OR LOWER THAN
THOSE SHOWN.


FINANCIAL HIGHLIGHTS

The following financial highlights tables show the results for a share
outstanding of each Portfolio for the last ten years or since inception. The
financial statements that include these financial highlights for each of the
last five years ended November 30, 1997, were audited by Price Waterhouse LLP,
independent accountants. You should read this information in conjunction with
each Portfolio's financial statements and accompanying notes, which appear,
along with the audit report from Price Waterhouse, in the Fund's most recent
annual report to shareholders. The annual report is incorporated by reference in
the Statement of Additional Information and in this prospectus, and contains a
more complete
<TABLE>
<CAPTION>
   
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                        MONEY MARKET PORTFOLIO
                                       ---------------------------------------------------------------------------------------------
                                                                        Year Ended November 30,
                                       ---------------------------------------------------------------------------------------------
                                        1997     1996     1995     1994     1993      1992     1991      1990      1989     1988
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                    <C>      <C>      <C>      <C>      <C>       <C>      <C>       <C>       <C>       <C>  
NET ASSET VALUE, BEGINNING OF YEAR     $1.00    $1.00    $1.00    $1.00    $1.00     $1.00    $1.00     $1.00     $1.00     $1.00
                                       ---------------------------------------------------------------------------------------------
INVESTMENT OPERATIONS
 Net Investment Income                  .034     .033     .036     .026     .024      .029     .043      .054      .060      .049
 Net Realized and Unrealized
  Gain (Loss) on Investments              --       --       --       --       --        --       --        --        --        --
                                       ---------------------------------------------------------------------------------------------
  TOTAL FROM INVESTMENT OPERATIONS      .034     .033     .036     .026     .024      .029     .043      .054      .060      .049
- ------------------------------------------------------------------------------------------------------------------------------------
DISTRIBUTIONS
 Dividends from Net Investment Income  (.034)   (.033)   (.036)   (.026)   (.024)    (.029)   (.043)    (.054)    (.060)    (.049)
 Distributions from Realized
  Capital Gains                           --       --       --       --       --        --       --        --        --        --
                                       ---------------------------------------------------------------------------------------------
  TOTAL DISTRIBUTIONS                  (.034)   (.033)   (.036)   (.026)   (.024)    (.029)   (.043)    (.054)    (.060)    (.049)
- ------------------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, END OF YEAR           $1.00    $1.00    $1.00    $1.00    $1.00     $1.00    $1.00     $1.00     $1.00     $1.00
====================================================================================================================================
TOTAL RETURN                            3.41%    3.32%    3.69%    2.59%    2.40%     2.97%    4.44%     5.59%     6.19%     5.06%
====================================================================================================================================
RATIOS/SUPPLEMENTAL DATA
Net Assets, End of Year (Millions)    $1,800   $1,443   $1,202   $1,159   $1,006      $794     $759      $723      $540      $290
Ratio of Total Expenses to
 Average Net Assets                     0.18%    0.19%    0.20%    0.19%    0.19%     0.24%    0.24%     0.25%     0.22%     0.26%
Ratio of Net Investment Income to
 Average Net Assets                     3.35%    3.27%    3.61%    2.57%    2.37%     2.92%    4.32%     5.43%     5.99%     5.02%
Portfolio Turnover Rate                  N/A      N/A      N/A      N/A      N/A       N/A      N/A       N/A       N/A       N/A
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>
    

                                       4

<PAGE>

discussion of each Portfolio's performance. You may have the report sent to you
without charge by writing to Vanguard or by calling our Investor Information
Department.
<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                      INSURED INTERMEDIATE-TERM
                                                                                               PORTFOLIO
                                                                --------------------------------------------------------------------
                                                                            Year Ended
                                                                           November 30, 
                                                                ----------------------------------                Mar. 4*-
                                                                 1997          1996           1995              Nov. 30, 1994
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                             <C>           <C>            <C>                    <C>   
NET ASSET VALUE, BEGINNING OF PERIOD                            $10.58        $10.44         $ 9.64                 $10.00
                                                                --------------------------------------------------------------------
INVESTMENT OPERATIONS
 Net Investment Income                                            .505          .508           .511                   .346
 Net Realized and Unrealized Gain (Loss) on Investments           .102          .140           .800                  (.360)
                                                                --------------------------------------------------------------------
  TOTAL FROM INVESTMENT OPERATIONS                                .607          .648          1.311                  (.014)
- ------------------------------------------------------------------------------------------------------------------------------------
DISTRIBUTIONS
 Dividends from Net Investment Income                            (.505)        (.508)         (.511)                 (.346)
 Distributions from Realized Capital Gains                       (.022)           --             --                     --
                                                                --------------------------------------------------------------------
  TOTAL DISTRIBUTIONS                                            (.527)        (.508)         (.511)                 (.346)
- ------------------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, END OF PERIOD                                  $10.66        $10.58         $10.44                $  9.64
====================================================================================================================================
TOTAL RETURN                                                      5.91%         6.41%         13.88%                 -0.19%
====================================================================================================================================
RATIOS/SUPPLEMENTAL DATA
Net Assets, End of Period (Millions)                              $596          $343           $206                   $100
Ratio of Total Expenses to Average Net Assets                     0.18%         0.19%          0.21%                  0.19%**
Ratio of Net Investment Income to Average Net Assets              4.78%         4.90%          5.05%                  4.97%**
Portfolio Turnover Rate                                             10%           21%            11%                     6%
- ------------------------------------------------------------------------------------------------------------------------------------
 *Inception date.
**Annualized.
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>
<TABLE>
<CAPTION>
   
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                      INSURED LONG-TERM PORTFOLIO
                                        --------------------------------------------------------------------------------------------
                                                                        Year Ended November 30,
                                        --------------------------------------------------------------------------------------------
                                          1997      1996    1995     1994     1993     1992    1991     1990     1989      1988
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                      <C>       <C>     <C>      <C>      <C>      <C>     <C>      <C>      <C>        <C>  
NET ASSET VALUE, BEGINNING OF YEAR       $11.42    $11.27  $ 9.92   $11.30   $10.89   $10.43  $10.22   $10.19   $ 9.71     $9.26
                                        --------------------------------------------------------------------------------------------
INVESTMENT OPERATIONS
 Net Investment Income                     .592      .598    .602     .604     .604     .633    .644     .660     .671      .656
 Net Realized and Unrealized
  Gain (Loss) on Investments               .121      .150   1.350   (1.228)    .609     .464    .210     .030     .480      .450
                                        --------------------------------------------------------------------------------------------
  TOTAL FROM INVESTMENT OPERATIONS         .713      .748   1.952    (.624)   1.213    1.097    .854     .690    1.151     1.106
- ------------------------------------------------------------------------------------------------------------------------------------
DISTRIBUTIONS
 Dividends from Net Investment Income     (.592)    (.598)  (.602)   (.604)   (.604)   (.633)  (.644)   (.660)   (.671)    (.656)
 Distributions from Realized
  Capital Gains                           (.091)       --      --    (.152)   (.199)   (.004)     --       --       --        --
                                        --------------------------------------------------------------------------------------------
  TOTAL DISTRIBUTIONS                     (.683)    (.598)  (.602)   (.756)   (.803)   (.637)  (.644)   (.660)   (.671)    (.656)
- ------------------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, END OF YEAR             $11.45    $11.42  $11.27   $ 9.92   $11.30   $10.89  $10.43   $10.22   $10.19     $9.71
====================================================================================================================================
TOTAL RETURN                               6.52%     6.91%  20.11%   -5.88%   11.53%   10.81%   8.61%    7.06%   12.16%    12.22%
====================================================================================================================================
RATIOS/SUPPLEMENTAL DATA
Net Assets, End of Year (Millions)       $1,207    $1,066    $975     $834   $1,074     $828    $629     $385     $260      $126
Ratio of Total Expenses to
 Average Net Assets                        0.16%     0.19%   0.20%    0.19%    0.19%    0.24%   0.25%    0.26%    0.24%     0.30%
Ratio of Net Investment Income to
 Average Net Assets                        5.26%     5.38%   5.59%    5.60%    5.38%    5.92%   6.24%    6.57%    6.67%     6.83%
Portfolio Turnover Rate                      21%       23%     23%      28%      27%      54%     19%       6%       3%        4%
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>
    
         From time to time, the Vanguard funds advertise yield and total return
figures. Yield is a historical measure of dividend income, and total return is a
measure of past dividend income (assuming that it has been reinvested) plus
realized and unrealized capital appreciation (or depreciation). Neither yield
nor total return should be used to predict the future performance of a fund.

                                       5
<PAGE>
                                PLAIN TALK ABOUT

                                 TAXABLE VERSUS
                             TAX-EXEMPT INVESTMENTS

You may not always profit from a state tax-exempt investment; sometimes a
taxable investment can serve you better. To determine which is more suitable for
you, figure out the state tax-exempt portfolio's taxable equivalent yield. You
do this by: 
/ / First figuring out your effective state bracket. Simply subtract your
    federal tax bracket from 100%; then multiply that number by your state
    bracket. For example, if you are in a 9.3% state tax bracket, and a 36%
    federal tax bracket, your effective state bracket would be 5.95% ([100% -
    36%] x 9.3).
/ / Then adding your federal tax bracket and effective state bracket together
    for your combined tax bracket. In this example, your combined tax bracket
    would be 41.95% (36% + 5.95%).
/ / Finally, dividing the portfolio's tax-exempt yield by the difference
    between 100% and your combined tax bracket. Continuing with this example and
    assuming that you are considering a state tax-exempt portfolio with a 5%
    yield, your taxable equivalent yield would be 8.61% (5% divided by [100% -
    41.95%]).

    In this example, you would choose the state tax-exempt portfolio if its
taxable equivalent yield of 8.61% were greater than the yield of a similar,
though taxable, investment.
    Remember that we have used assumed tax brackets in this example. Please
verify your actual tax brackets--federal, state, and local (if any)--before
calculating taxable equivalent yields of your own.

A WORD ABOUT RISK

This prospectus describes the risks you would face as an investor
in the Portfolios of Vanguard California Tax-Free Fund. It is
important to keep in mind one of the main axioms of investing: The higher the
risk of losing money, the higher the potential reward. The reverse, also, is
generally true: The lower the risk, the lower the potential reward. As you
consider an investment in one or more of the Portfolios, you should take into
account your need to protect your investment, as well as your desire for current
income.
    Look for this "warning flag" [FLAG] symbol throughout the prospectus. It
is used to mark detailed information about each type of risk that you, as a
shareholder of one or more of the Portfolios, would confront.

THE PORTFOLIOS' OBJECTIVES

Each Portfolio seeks to provide varying amounts of income that is exempt from
federal and California personal income taxes. The Money Market Portfolio also
seeks to maintain, but does not guarantee, a constant net asset value of $1 per
share. These objectives are fundamental, which means that they cannot be changed
unless a majority of Portfolio shareholders vote to do so.

[FLAG] BECAUSE OF THE SEVERAL TYPES OF RISKS DESCRIBED ON THE FOLLOWING PAGES,
       YOUR INVESTMENTS IN ONE OR MORE OF THE PORTFOLIOS, AS WITH ANY INVESTMENT
       IN BONDS, COULD LOSE MONEY.

[FLAG] BECAUSE THEY INVEST PRIMARILY IN SECURITIES ISSUED BY
       CALIFORNIA AND ITS MUNICIPALITIES, THE PORTFOLIOS ARE MORE VULNERABLE TO
       UNFAVORABLE DEVELOPMENTS IN CALIFORNIA THAN FUNDS THAT INVEST IN
       MUNICIPAL BONDS OF MANY STATES.
   
WHO SHOULD INVEST

Any of the Portfolios of Vanguard California Tax-Free Fund may be a suitable
investment for you if you are a California resident and:

/ / You wish to add a municipal bond income fund to your existing holdings,
    which could include other tax-exempt--as well as stock, money market, and
    taxable bond--investments.
/ / You seek income that is exempt from federal and California personal income
    taxes. 
    
                                       6


<PAGE>

    However, one Portfolio may more closely meet your personal investment
objectives than the others. For instance, the Money Market Portfolio may be
suitable for you if: n You do not want fluctuation in the share price of your
investment.
/ / You are seeking a short-term investment vehicle. The Insured
    Intermediate-Term Portfolio may be suitable for you if:
/ / You are seeking a potentially greater amount of tax-exempt income and are
    willing to accept moderate fluctuations in share price.
    The Insured Long-Term Portfolio may be suitable for you if:
/ / You are seeking an even greater amount of tax-exempt income and are
    willing to accept significant fluctuations in share price.
  
    None of the Portfolios is an appropriate investment if you are a
market-timer. Investors who engage in excessive in-and-out trading activity
generate additional costs that are borne by all of the shareholders in a
Portfolio. To minimize such costs, which reduce the ultimate returns achieved by
you and other shareholders, the Portfolios have adopted the following policies:

/ / Each Portfolio reserves the right to reject any purchase
    request--including exchanges from other Vanguard funds--that it regards as
    disruptive to the efficient management of the Portfolio. This could be
    because of the timing of the investment or because of a history of excessive
    trading by the investor.
/ / There is a limit on the number of times you can exchange into or out of a
    Portfolio (see "Redeeming Shares" in the INVESTING WITH VANGUARD section).
/ / The Portfolios reserve the right to stop offering shares at any time.


INVESTMENT STRATEGY

This section explains how the Portfolios' investment adviser seeks to provide
income that is exempt from federal and California personal income taxes. It also
explains important risks--income risk, interest rate risk, call risk, objective
risk, credit risk, and manager risk--faced by the Portfolios' shareholders.
Unlike the Portfolios' investment objectives, the adviser's investment strategy
is not fundamental and can be changed by the Fund's Board of Trustees without
shareholder approval. However, before making any important change in its
strategy, a Portfolio will give shareholders 30 days' notice, in writing.

MARKET EXPOSURE
Each of the Portfolios invests primarily in California state and local municipal
bonds that, depending on their maturity and quality, provide varying amounts of
tax-exempt income.
   
[FLAG] EACH PORTFOLIO IS SUBJECT TO INCOME RISK, WHICH IS THE POSSIBILITY THAT A
       PORTFOLIO'S DIVIDENDS (INCOME) WILL DECLINE DUE TO FALLING INTEREST
       RATES. INCOME RISK IS GENERALLY GREATEST FOR SHORT-TERM BONDS AND LEAST 
       FOR LONG-TERM BONDS.
    
                                PLAIN TALK ABOUT
                                 MUNICIPAL BONDS

Municipal bonds are securities issued by state and local governments and
regional government authorities as a way of raising money for public
construction projects (for example, highways, airports, and housing); for
operating expenses; or for loans to public institutions and facilities.


                                       7
<PAGE>

                                PLAIN TALK ABOUT
                            BONDS AND INTEREST RATES

When interest rates rise, bond prices fall. The opposite is also true: Bond
prices go up when interest rates fall. Why do bond prices and interest rates
move in opposite directions? Let's assume that you hold a bond offering a 5%
yield. A year later, interest rates are on the rise and bonds are offered with a
6% yield. With higher-yielding bonds available, you would have trouble selling
your 5% bond for the price you paid--causing you to lower your asking price. On
the other hand, if interest rates were falling and 4% bonds were being offered,
you would be able to sell your 5% bond for more than you paid.

                                PLAIN TALK ABOUT
                                 BOND MATURITIES

A bond is issued with a specific maturity date--the date when the bond's issuer
must pay back the bond's initial value (known as its "face value"). Bond
maturities generally range from less than one year (short term) to 30 years
(long term). The longer a bond's maturity, the more risk you, as a bond
investor, face as interest rates rise--but also the more interest you could
receive. Long-term bonds are more suitable for investors willing to take greater
risks in hope of higher yields; short-term bond investors should be willing to
accept lower yields in return for less fluctuation in the value of their
investment. 
    Changes in interest rates can affect bond prices as well as bond income.

[FLAG] THE INSURED INTERMEDIATE-TERM AND INSURED LONG-TERM PORTFOLIOS ARE
       PARTICULARLY SUBJECT TO INTEREST RATE RISK, WHICH IS THE POSSIBILITY
       THAT BOND PRICES OVERALL WILL DECLINE OVER SHORT OR EVEN EXTENDED
       PERIODS DUE TO RISING INTEREST RATES. INTEREST RATE RISK SHOULD BE
       MODEST FOR SHORTER-TERM BONDS, MODERATE FOR INTERMEDIATE-TERM BONDS, AND
       HIGH FOR LONGER-TERM BONDS.

    In the past, bond investors have seen the value of their investment rise and
fall--sometimes significantly--with changes in interest rates. Between December
1976 and September 1981, for instance, rising interest rates caused long-term
bond prices to fall by almost 48%.
    Changes in interest rates will have a significant impact on the value of the
Insured Intermediate-Term and Insured Long-Term Portfolios' assets. To
illustrate how much of an impact, the following table shows the effect of a 1%
change and a 2% change (both up and down) in interest rates on two bonds with a
face value of $1,000; each has a different maturity, similar to bonds held by
either the Insured Intermediate-Term or Insured Long-Term Portfolio on November
30, 1997.

- --------------------------------------------------------------------------------
           HOW INTEREST RATE CHANGES AFFECT INVESTMENT
- --------------------------------------------------------------------------------
                  VALUE OF A $1,000 INVESTMENT
- --------------------------------------------------------------------------------
                  YIELD/      AFTER A 1%    AFTER A 1%   AFTER A 2%   AFTER A 2%
TYPE OF BOND     MATURITY      INCREASE      DECREASE     INCREASE     DECREASE
- --------------------------------------------------------------------------------
Intermediate-
   Term        4.37%/6.6 yr     $941         $1,054         $889        $1,117
Long-Term     4.81%/11.2 yrs     909          1,081          836         1,181
- --------------------------------------------------------------------------------

    These figures are for illustration only and should not be regarded as an
indication of future returns from the municipal bond market as a whole, or of
any Portfolio in particular.
    Falling interest rates can cause other problems for bond portfolio
shareholders.
   
[FLAG]  THE INSURED INTERMEDIATE-TERM, INSURED LONG-TERM, AND, TO A MUCH LESSER
        EXTENT, MONEY MARKET PORTFOLIOS ARE SUBJECT TO CALL RISK, WHICH IS THE
        POSSIBILITY THAT DURING PERIODS OF FALLING INTEREST RATES, A BOND ISSUER
        WILL "CALL" OR REPAY--ITS HIGH-YIELDING BOND BEFORE ITS MATURITY DATE.
        FORCED TO INVEST THE UNANTICIPATED PROCEEDS AT LOWER INTEREST RATES, THE
        PORTFOLIO WOULD EXPERIENCE A DECLINE IN INCOME--AND THE POTENTIAL FOR
        TAXABLE CAPITAL GAINS.
    
                                       8
<PAGE>

    Longer-term bonds like those held by the Insured Long-Term Portfolio 
generally have "call protection"--that is, assurance that a bond will not be 
called for a specific period, such as ten years.

SECURITY SELECTION
Vanguard Fixed Income Group, adviser to the Portfolios, selects bonds issued by
California state and local governments and regional governmental authorities.
The municipal bonds held by each Portfolio, though, differ significantly in
terms of maturity and quality. Up to 20% of each Portfolio's assets may be
invested in securities that are subject to the alternative minimum tax (AMT).
(See page 10 for a "Plain Talk" on the Alternative Minimum Tax.)
   
[FLAG]  THE PORTFOLIOS ARE SUBJECT TO OBJECTIVE RISK, WHICH IS THE POSSIBILITY
        THAT RETURNS FROM A PARTICULAR BOND MARKET SEGMENT (FOR EXAMPLE,
        LONG-TERM BONDS OR BONDS ISSUED BY CALIFORNIA STATE) WILL TRAIL RETURNS
        FROM THE OVERALL BOND MARKET.

    The MONEY MARKET PORTFOLIO invests at least 80% of its assets in a variety
of high-quality, short-term California municipal securities. The Portfolio seeks
to provide a stable net asset value of $1 per share by investing in securities
with an effective maturity of 13 months or less and by maintaining an average
weighted maturity of 90 days or less. An investment in a money market fund is
neither insured nor guaranteed by the U.S. government, and there can be no
assurance that the Portfolio will be able to maintain a stable net asset value
of $1 per share.
    The INSURED INTERMEDIATE-TERM and the INSURED LONG-TERM PORTFOLIOS buy
longer-term municipal bonds issued by the state of California, its local
governments, and public financing authorities (and, possibly, by certain U.S.
territories). The Portfolios may also buy industrial revenue bonds and bonds
issued by hospitals and universities.
    Normally, a fund that concentrates its assets in one state would be exposed
to considerable credit risk. (Details of the risks of investing in California
can be found in the Statement of Additional Information.) To provide a level of
credit protection, the Insured Intermediate-Term Portfolio invests at least 65%
of assets, and the Insured Long-Term Portfolio at least 80% of assets, in
municipal bonds whose principal and interest payments are guaranteed by
top-rated insurance companies at the time of purchase. This insurance coverage
may take one of several forms:
/ / A new-issue insurance policy, which is purchased by a bond issuer at the
    time the security is issued. This insurance is likely to increase the credit
    rating of the security, as well as its purchase price and resale value.
/ / A mutual fund insurance policy, which is used to guarantee specific bonds
    only while held by a mutual fund. For the Insured Intermediate-Term and
    Insured Long-Term Portfolios (which have each obtained a policy from
    Financial Guaranty
    
                                PLAIN TALK ABOUT
                                 CALLABLE BONDS

Although bonds are issued with clearly defined maturities, a bond issuer may be
able to redeem, or call, a bond earlier than its maturity date. The bondholder
must now replace the called bond with a bond that may have a lower yield than
the original. One way for bond investors to protect themselves against call risk
is to purchase a bond early in its lifetime, when it is less likely to be
called. Another way is to buy bonds with call protection--that is, assurance
that a bond will not be called for a specific time period, such as ten years.

                                PLAIN TALK ABOUT
                                 CREDIT QUALITY

A bond's credit quality depends on the issuer's ability to pay interest on the
bond and, ultimately, to repay the debt. The lower the rating by one of the
independent bond-rating agencies (for example, Moody's or Standard & Poor's),
the greater the chance (in the rating agency's opinion) the bond issuer will
default, or fail to meet its payment obligations. Most bond-rating agencies use
a descending alphabet scale to rate bonds (for example, Aaa is the highest
rating, C among the poorest quality). All things being equal, the lower a bond's
credit rating, the higher the yield the bond seeks to pay (as compensation for
the risks an investor must take).

                                       9
<PAGE>
                                PLAIN TALK ABOUT
                             ALTERNATIVE MINIMUM TAX

Certain tax-exempt bonds whose proceeds are used to fund private, for-profit
organizations are subject to the alternative minimum tax (AMT)--a special tax
system that ensures that individuals pay at least some federal taxes. Although
AMT bond income is exempt from federal income tax, a very limited number of
taxpayers who have many tax deductions may have to pay alternative minimum tax
on the income from bonds considered "tax-preference items."

                                PLAIN TALK ABOUT
                              CONVERSION PERIOD FOR
                               MONEY MARKET FUNDS

Before it can begin earning dividends, your investment in a money market fund
must be converted to federal funds, which are Federal Reserve deposits that
banks and other financial institutions "borrow" from one another to meet
short-term cash needs--and which fund advisers must use to pay for the
securities they buy. Conversion of your money market investment to federal funds
is done by the fund management and usually takes one business day. Because of
this conversion period, your money market account will be credited on the
business day following the day your investment is received. You will begin
earning dividends on your investment on the next calendar day. For example, if
your check is received on a Thursday before the close of trading on the New York
Stock Exchange, your account will be credited the next business day (Friday) and
you will begin earning dividends on Saturday.

Insurance Company), the annual premiums for the policies may reduce
each Portfolio's current yield.
/ / A secondary market insurance policy, which is purchased by an investor (such
    as the Insured Intermediate-Term or Insured Long-Term Portfolio) after a
    bond has been issued and insures the bond until its maturity date.
    Typically, an insured municipal bond in the Insured Intermediate-Term or
Insured Long-Term Portfolios will be covered by only one of the three policies.
For instance, if a bond is covered by a new-issue insurance policy or a
secondary market insurance policy, the security will probably not be insured
under the Portfolio's mutual fund insurance policy.
    Normally, the Insured Intermediate-Term and Insured Long-Term Portfolios
seek to invest substantially all of their assets in insured California municipal
obligations. However, up to 35% of the Insured Intermediate-Term Portfolio and
up to 20% of the Insured Long-Term Portfolio may be invested in either:
/ / Uninsured California municipal securities with the equivalent of a
    minimum-quality rating of AA by a Nationally Recognized Statistical Rating
    Organization (NRSRO), or
/ / Uninsured, high-quality, short-term California municipal securities.
    The Insured Intermediate-Term and Insured Long-Term Portfolios have no
limitations as to the maturities of the securities in which they invest.
However, the Insured Intermediate-Term Portfolio is expected to maintain a
dollar-weighted average maturity of between 7 and 12 years, and the Insured
Long-Term Portfolio is expected to maintain a dollar-weighted average maturity
of between 15 and 25 years.
    Under unusual circumstances, such as a national financial emergency or a
temporary decline in the availability of California obligations, up to 35% of
the Insured Intermediate-Term Portfolio and up to 20% of the Insured Long-Term
Portfolio may be invested in securities, such as short-term municipal securities
issued outside of California or certain taxable fixed-income securities, that
generate income subject to California state or federal personal income taxes.
    As tax-advantaged investments, the Portfolios are particularly vulnerable to
federal and California State tax law changes (for instance, if the Internal
Revenue Service ruled that the income from certain types of state-issued bonds
could no longer be considered tax-exempt).

[FLAG]  THE PORTFOLIOS ARE SUBJECT TO CREDIT RISK, WHICH IS THE POSSIBILITY THAT
        A BOND ISSUER WILL FAIL TO REPAY INTEREST AND PRINCIPAL IN A TIMELY
        MANNER.
                                       10
<PAGE>
    The Money Market Portfolio invests primarily in high-quality, short-term
California securities, and the Insured Intermediate-Term and Insured Long-Term
Portfolios invest primarily in bonds insured by top-rated insurance companies
against the possible default of an issuer. Therefore, credit risk should be
low for the Money Market Portfolio, and very low for the Insured
Intermediate-Term and Insured Long-Term Portfolios. The average qualities of
the Money Market, Insured Intermediate-Term and Insured Long-Term Portfolios,
as rated by Moody's on November 30, 1997, were MIG-1, Aaa, and Aaa,
respectively.

    The Portfolios try to minimize credit risk by purchasing a wide selection of
California municipal securities. As a result, there is less chance that a
Portfolio will be hurt significantly by a particular bond issuer's failure to
repay either principal or interest.

[FLAG]  THE PORTFOLIOS ARE SUBJECT TO MANAGER RISK, WHICH IS THE POSSIBILITY
        THAT VANGUARD FIXED INCOME GROUP WILL DO A POOR JOB OF SELECTING
        SECURITIES.

    To help you distinguish between the Portfolios and their various risks, a
summary table is presented below.

- --------------------------------------------------------------------------------
                                RISKS OF THE PORTFOLIO
- --------------------------------------------------------------------------------
                             INCOME       INTEREST       CALL       CREDIT
PORTFOLIO                     RISK        RATE RISK      RISK        RISK
- --------------------------------------------------------------------------------
Money Market                 High           Low        Negligible    Low
Insured Intermediate-Term  Moderate       Moderate       Low       Very Low
Insured Long-Term            Low            High         High      Very Low
- --------------------------------------------------------------------------------
   
PORTFOLIO TURNOVER
Although the Insured Intermediate-Term and Insured Long-Term Portfolios
generally seek to invest for the long term, they retain the right to sell
securities regardless of how long they have been held. Shorter-term bonds will
mature--and need to be replaced--more frequently than longer-term bonds. As a
result, shorter-term bond portfolios may tend to have higher portfolio turnover
rates than longer-term bond portfolios.
    
INVESTMENT POLICIES

Besides investing in high-quality municipal bonds, each Portfolio may follow a
number of other investment policies to achieve its objectives.

[FLAG]  EACH OF THE FUND'S PORTFOLIOS MAY INVEST, TO A LIMITED EXTENT, IN
        DERIVATIVES.

    The Money Market Portfolio may invest in partnership and grantor trust-type
derivatives. Ownership of derivative securities allows the purchaser to receive
principal and interest payments on underlying municipal bonds or municipal
notes. There are many types of deriva-

                                PLAIN TALK ABOUT
                               PORTFOLIO TURNOVER

Before investing in a mutual fund, you should review its portfolio turnover rate
for an indication of the potential effect of transaction costs on the fund's
future returns. In general, the greater the volume of buying and selling by the
fund, the greater the impact that brokerage commissions and other transaction
costs will have on its return. Also, funds with high portfolio turnover rates
may be more likely than low-turnover funds to generate capital gains that must
be distributed to shareholders as taxable income. The average turnover rate for
actively managed tax-exempt bond funds (excluding money market funds) is 44%.

                                PLAIN TALK ABOUT
                                   DERIVATIVES

A derivative is a financial contract whose value is based on (or "derived from")
a traditional security (such as a stock or a bond), an asset (such as a
commodity like gold), or a market index (such as the S&P 500 Index). Futures and
options are derivatives that have been trading on regulated exchanges for more
than two decades. These "traditional" derivatives are standardized contracts
that can easily be bought and sold, and whose market values are determined and
published daily. It is these characteristics that differentiate futures and
options from the relatively new types of derivatives such as swap agreements and
partnerships or grantor trust-type derivatives (which, if used for speculation
or as leveraged investments, can carry considerable risks). 

                                       11
<PAGE>

tives, including derivatives in which the tax-exempt interest rate is determined
by an index, a swap agreement, or some other formula.
    The Money Market Portfolio intends to use derivatives to increase the
diversification of, as well as maintain the quality of, securities held by the
Portfolio. Derivative securities are subject to certain structural risks that,
in unexpected circumstances, could cause the Portfolio's shareholders to lose
money or receive taxable income. However, the Portfolio will invest in
derivatives only when these securities are judged consistent with the
Portfolio's objective of maintaining a stable $1 share price and producing
tax-exempt income.
    The Insured Intermediate-Term and Insured Long-Term Portfolios may invest in
bond (interest rate) futures and options contracts and other types of
derivatives. Losses (or gains) involving futures can sometimes be
substantial--in part because a relatively small price movement in a futures
contract may result in an immediate and substantial loss (or gain) for a
Portfolio. The Portfolios will keep separate cash reserves or other liquid
portfolio securities in the amount of the obligation underlying the futures
contract. Only a limited percentage of a Portfolio's assets--5%--may be applied
toward the deposits required on future contracts, and the value of all futures
contracts in which a Portfolio acquires an interest cannot exceed 20% of the
Portfolio's total assets. The reasons for which the Insured Intermediate-Term
and Insured Long-Term Portfolios will invest in futures and options are:
/ / To keep cash on hand to meet shareholder redemptions or other needs while
    simulating full investment in bonds. 
/ / To reduce the Portfolio's transaction costs by buying futures instead of 
    actual bonds.
/ / To add value to the Portfolio by buying futures instead of actual bonds when
    futures are cheaper.
   
    The Insured Intermediate-Term and Insured Long-Term Portfolios will not use
futures and options for speculative purposes or as leveraged investments that
magnify the gains or losses of an investment. The Statement of Additional
Information offers a detailed explanation of the other types of derivatives in
which the Portfolios may invest.
    The Insured Intermediate-Term and Insured Long-Term Portfolios will usually
hold only a small percentage of their assets in cash reserves, although if the
investment adviser believes that market conditions warrant a temporary defensive
measure, the Portfolios may hold cash reserves without limit.
    In addition, the Portfolios may purchase tax-exempt securities on a
"when-issued" basis. With "when-issued" securities, a Portfolio agrees to buy
securities at a certain price, even if the market price of the securities at the
time of delivery is higher or lower than the agreed-upon purchase price.
    
                                       12




<PAGE>

INVESTMENT LIMITATIONS

The Portfolios have adopted limitations on some of their investment policies.
Some of these limitations are that each Portfolio will not:
/ / Invest more than 25% of its assets in the securities of a single issuer,
    except the U.S. government and cash reserves.
/ / Invest more than 50% of its assets in bonds that make up more than 5% of the
    Portfolio's total assets.
/ / Borrow money, except for temporary or emergency purposes in an amount not
    exceeding 10% of its net assets. Whenever the Portfolio's outstanding
    borrowing is more than 5% of its net assets, it will stop making
    investments.
  
A complete list of the Portfolios' investment limitations can be found in the
Statement of Additional Information. These limitations are fundamental and may
be changed only by approval of a majority of a Portfolio's shareholders.


INVESTMENT PERFORMANCE
   
The Portfolios of Vanguard California Tax-Free Fund invest in bonds with a
variety of maturities from a variety of issuers in California, so their
performance will differ depending on the performance of specific bond market
segments. Historically, changes in interest rates have been--and remain--the
strongest influence on bond market performance.
    
- --------------------------------------------------------------------------------
                          AVERAGE ANNUAL TOTAL RETURNS
                       FOR PERIODS ENDED NOVEMBER 30, 1997
- --------------------------------------------------------------------------------
                                          1 YEAR    5 YEARS   10 YEARS
- --------------------------------------------------------------------------------
California Money Market Portfolio          3.4%      3.1%       4.0%
Lipper California Tax-Exempt
  Money Market Average                     3.0       2.7        3.6
- --------------------------------------------------------------------------------
California Insured Intermediate-Term
  Portfolio                                5.9%      6.8%*       --
Lipper California Intermediate
  Municipal Debt                           5.4       5.9*        --
- --------------------------------------------------------------------------------
California Insured Long-Term Portfolio     6.5%      7.5%       8.8%
Lipper California Insured Municipal
  Bond Average                             6.4       6.7        8.1
- --------------------------------------------------------------------------------
*Since Portfolio's inception date of March 4, 1994.

    The results shown above represent the Portfolios' "average annual total
return" performance, which assumes that any distributions of capital gains and
dividends were reinvested for the indicated periods. Also included is
comparative information for each Portfolio's unmanaged benchmark index.

                                PLAIN TALK ABOUT
                                PAST PERFORMANCE

Whenever you see information on a fund's performance, do not consider the
figures to be an indication of the performance you could expect by making an
investment in the fund today. The past is an imperfect guide to the future;
history does not repeat itself in neat, predictable patterns.

                                PLAIN TALK ABOUT
                                  DISTRIBUTIONS

As a shareholder, you are entitled to your share of a portfolio's income from
interest and dividends, and gains from the sale of investments. You receive such
earnings as either income dividends or capital gains distributions. Income
dividends come from interest and dividends the portfolio earns from its money
market and bond investments. Capital gains are realized whenever the portfolio
sells securities for higher prices than it paid for them. These capital gains
are either short-term or long-term depending on whether a portfolio held the
securities for less than or more than one year.

                                       13
<PAGE>

                                PLAIN TALK ABOUT
                             "BUYING A CAPITAL GAIN"

It is not to your advantage to buy shares of a portfolio shortly before it makes
a capital gains distribution, because part of your investment will come back to
you as taxable distribution. This is known as "buying a capital gain." For
example: on December 15, you invest $5,000, buying 250 shares for $20 each. If
the portfolio pays a capital gains distri- bution of $1 per share on December
16, its share price would drop to $19 (not counting market change). You would
still have only $5,000 (250 shares x $19 = $4,750 in share value, plus 250
shares x $1 = $250 in capital gains distributions), but you would owe tax on the
$250 capital gain you received, even if you had reinvested it in more shares. To
avoid "buying a capital gain," check a portfolio's distribution schedule before
you invest.


SHARE PRICE

Each Portfolio's share price, also called its net asset value, or NAV, is
calculated each business day after the close of trading (generally 4 p.m.
Eastern time) on the New York Stock Exchange. The net asset value per share is
calculated by adding up the total assets of the Portfolio, subtracting all of
its liabilities, or debts, and then dividing by the total number of Portfolio
shares outstanding:

                               TOTAL ASSETS   -   LIABILITIES
   NET ASSET VALUE =       -------------------------------------
                               NUMBER OF SHARES OUTSTANDING

    The daily net asset value is useful to you as a shareholder because the NAV,
multiplied by the number of Portfolio shares you own, gives you the dollar
amount you would have received had you sold all of your shares back to the
Portfolio that day.
    The Insured Intermediate-Term and Insured Long-Term Portfolios' share prices
can be found daily in the mutual fund listings of most major newspapers under
the heading "Vanguard Funds." Different newspapers use different abbreviations
for the Port- folios' names, but the most common are CaInsIT and CaInsLT. The
Money Market Portfolio is listed, along with other money market funds,
separately from other mutual funds; its abbreviation is VangCA. The Money Market
Portfolio's share price is expected--although not guaranteed--to remain at a
constant $1.


DIVIDENDS, CAPITAL GAINS, AND TAXES
   
The Portfolios' dividends accrue daily. On the first business day of every
month, the Portfolios distribute to shareholders virtually all of their income
from interest and dividends as dividend distributions. These dividend
distributions are expected to be free from federal income tax and California
personal and (to the extent relevant) municipal income taxes. Any capital gains
realized from the sale of securities are distributed annually in December. You
can choose to receive your distributions of income and capital gains (or of
income alone) in cash, or you can have them automatically invested in more
shares of the Portfolio. In either case, distributions of capital gains (but not
dividends) are taxable to you. It is important to note that distributions of
capital gains (but not dividends) that are declared in December--if paid to you
by the end of January--are taxed as if they had been paid to you in December.
Vanguard will send you a statement each year showing the tax status of all your
distributions. 
/ / The short-term capital gains that you receive are taxable to you as ordinary
    dividend income for federal income tax purposes. Any distributions of net
    long-term capital gains by a Portfolio are taxable to you as long-term
    capital gains, no matter how long you've owned shares in the Portfolio.
    Long-term capital gains may be taxed at different rates depending on how
    long
    
                                       14
<PAGE>



    the Portfolio held the securities. Although the Portfolios do not seek to
    realize any particular amount of capital gains during a year, such gains are
    realized from time to time as by-products of the ordinary investment
    activities of the Portfolios.
/ / If you sell or exchange shares of a Portfolio, any gain or loss you have is
    a taxable event, which means that you may have a capital gain to report as
    income, or a capital loss to report as a deduction, when you complete your
    federal income tax return.
/ / Distributions of capital gains, and capital gains or losses from your sale
    of Portfolio shares, may be subject to state income taxes, as well.

    The tax information in this prospectus is provided as general information.
You should consult your tax adviser about the tax consequences of an investment
in one of the Portfolios.

THE PORTFOLIOS AND VANGUARD
   
The Portfolios of Vanguard California Tax-Free Fund are members of The Vanguard
Group, a family of more than 30 investment companies with more than 95 distinct
investment portfolios and total net assets of more than $350 billion. All of the
Vanguard funds share in the expenses associated with business operations, such
as personnel, office space, equipment, and advertising.
    Vanguard also provides marketing services to the funds. Although
shareholders do not pay sales commissions or 12b-1 marketing fees, each fund
pays its allocated share of The Vanguard Group's costs.
    A list of the Fund's Trustees and officers, and their present positions and
principal occupations during the last five years, can be found in the Fund's
Statement of Additional Information.
    
INVESTMENT ADVISER
   
Vanguard Fixed Income Group (the "Group"), P.O. Box 2600, Valley Forge, PA,
19482, provides investment advisory services to the Portfolios of Vanguard
California Tax-Free Fund on an at-cost basis, subject to the control of the
Trustees and officers of the Fund.
    The Fixed Income Group chooses brokers or dealers to handle the purchase and
sale of the Portfolios' securities, and is responsible for getting the best
available price and most favorable execution for all transactions. When the
Portfolios purchase a newly issued security at a fixed price, the Group may
designate certain members of the underwriting syndicate to receive compensation
associated with that transaction. Certain dealers have agreed to rebate a
portion of such compensation directly to the Portfolios to offset their
management expenses.
    
                                PLAIN TALK ABOUT
                                VANGUARD'S UNIQUE
                               CORPORATE STRUCTURE

The Vanguard Group, Inc., is the only mutual MUTUAL fund company. It is owned
jointly by the funds it oversees and by the shareholders in those funds. Other
mutual funds are operated by for-profit management companies that may be owned
by one person, by a group of individuals, or by investors who bought the
management company's publicly traded stock. Vanguard operates its funds at cost.
Instead of distributing profits to a separate management company, Vanguard
returns profits to fund shareholders in the form of lower operating expenses.

                                PLAIN TALK ABOUT
                               THE FUND'S ADVISER
   
Vanguard Fixed Income Group currently manages more than $100 billion in assets
and provides investment advisory services on an at-cost basis to more than 40
Vanguard portfolios.
    The managers responsible for the Fund are:
    IAN A. MACKINNON, Managing Director; has worked in investment management
since 1974; primary responsibility for Vanguard's internal fixed-income policy
and strategy since 1981; B.A., Lafayette College; M.B.A., Pennsylvania State
University.
    REID O. SMITH, CFA, Principal, and (since 1994 and 1992, respectively)
Portfolio Manager of the Insured Intermediate-Term Portfolio and the Insured
Long-Term Portfolio; has worked in investment management since 1984; B.A.,
M.B.A., University of Hawaii.
    PAMELA WISEHAUPT TYNAN, Principal and (since June 1987) Portfolio Manager of
the Money Market Portfolio; has worked in investment management since 1982;
B.S., Temple University.
    
                                       15
<PAGE>


GENERAL INFORMATION

Vanguard California Tax-Free Fund is a Pennsylvania business trust. Shareholders
of the Fund's Portfolios have rights and privileges similar to those enjoyed by
corporate and trust shareholders. If any matters are to be voted on by
shareholders (such as a change in a fundamental investment objective or the
election of Trustees), each share outstanding at that point would be entitled to
one vote. Annual meetings will not be held by the Portfolios except as required
by the Investment Company Act of 1940. A meeting will be scheduled to vote on
the removal of a Trustee if the holders of at least 10% of a Portfolio's shares
request a meeting in writing.

   
"Standard & Poor's 500," "S&P 500(R)," "Standard & Poor's(R)," "S&P(R)," and
"500" are trademarks of The McGraw-Hill Companies, Inc.
    
                                       16
<PAGE>

INVESTING WITH VANGUARD

Are you looking for the most convenient way to open or add money to a Vanguard
account? Obtain instant access to fund information? Establish an account for a
minor child?
    Vanguard can help. Our goal is to make it easy and pleasant for you to do
business with us.
    The following sections of the prospectus briefly explain the many services
we offer you as a shareholder of one of the Portfolios of Vanguard California
Tax-Free Fund. Booklets providing detailed information are available on the
services marked with a [BOOK GRAPHIC]. Please call us to request copies.


SERVICES AND ACCOUNT FEATURES

Vanguard offers many services that make it convenient to buy, sell, or exchange
shares.

TELEPHONE REDEMPTIONS              Automatically set up for each Portfolio
(SALES AND EXCHANGES)              unless you notify us otherwise.        
                                   
CHECKWRITING                       Method for drawing money from your account by
                                   writing a checkwriting draft for $250 or     
                                   more.   

VANGUARD DIRECT DEPOSIT            Automatic method for depositing your paycheck
SERVICE(TM)                        or U.S. government payment (including Social 
[BOOK GRAPHIC]                     Security and government pension checks) into 
                                   your account.                                
                                   
VANGUARD AUTOMATIC EXCHANGE        Automatic method for moving a fixed amount of
SERVICE(sm)                        money from one Vanguard fund account to      
[BOOK GRAPHIC]                     another.*                                    
                                   
VANGUARD FUND EXPRESS(R)           Electronic method for buying or selling      
[BOOK GRAPHIC]                     shares. You can transfer money between your  
                                   Vanguard fund account and an account at your 
                                   bank, savings and loan, or credit union on a 
                                   systematic schedule or whenever you wish.*   

VANGUARD DIVIDEND EXPRESS(sm)      Electronic method for transferring dividend  
[BOOK GRAPHIC]                     and/or capital gains distributions directly  
                                   from your Vanguard fund account to your bank,
                                   savings and loan, or credit union account.   
                                   
VANGUARD BROKERAGE SERVICES        A cost-effective way to trade stocks, bonds,
(VBS)                              and options on major exchanges, Nasdaq, and 
[BOOK GRAPHIC]                     other domestic over-the-counter markets at  
                                   reduced rates, and to buy and sell shares of
                                   non-Vanguard mutual funds. Call VBS         
                                   (1-800-992-8327) for additional information 
                                   and the appropriate forms.    

*Can be used to "dollar-cost average" [BOOK GRAPHIC].

                     Investor Information 1-800-662-7447
                        Client Services 1-800-662-2739
                         Tele-Account 1-800-662-6273


                                       17
<PAGE>


TYPES OF ACCOUNTS

INDIVIDUAL OR OTHER ENTITY
Vanguard's account registration form can be used to establish a variety of
accounts.

FOR ONE OR MORE PEOPLE             To open an account in the name of one       
                                   (individual) or more (joint tenants) people.
                                   $3,000 minimum initial investment.          

FOR A MINOR CHILD                  To open an account as an UGMA/UTMA (Uniform 
[BOOK GRAPHIC]                     Gifts/Transfers to Minors Act). Age of      
                                   majority and other requirements are set by  
                                   state law. $1,000 minimum initial investment
                                   
FOR HOLDING TRUST ASSETS           To invest assets held in an existing trust.
[BOOK GRAPHIC]                     $3,000 minimum initial investment.         
                                   
FOR AN ORGANIZATION                To open an account as a corporation,        
                                   partnership, or other entity. These accounts
                                   may require a corporate resolution or other 
                                   documents to name the individuals authorized
                                   to act. $3,000 minimum initial investment.  
                                   

DISTRIBUTION OPTIONS

You can receive distributions of dividends and/or capital gains in a number of
ways:

REINVESTMENT                       Dividends and capital gains are automatically
                                   reinvested in additional shares of the       
                                   Portfolio, unless you request a different    
                                   distribution method.                         
                                   
DIVIDENDS IN CASH                  Dividends are paid by check and mailed to    
                                   your account's address of record, and capital
                                   gains are reinvested in additional shares of 
                                   the Portfolio.                               
                                   
CAPITAL GAINS IN CASH              Capital gains distributions are paid by check
                                   and mailed to your account's address of      
                                   record, and dividends are reinvested in      
                                   additional shares of the Potfolio.           

DIVIDENDS AND CAPITAL GAINS        Both dividends and capital gains             
IN CASH                            distributions are paid by check and mailed to
                                   your account's address of record.         
                                   

To electronically transfer cash dividends and/or capital gains to your bank,
savings and loan, or credit union account, see Vanguard Dividend Express under
"Services and Account Features."

If you have elected to receive dividend and/or capital gains distributions in
cash, but the Postal Service is unable to make delivery to your address of
record, your distribution option will be changed to reinvestment. No interest
will accrue on amounts represented by uncashed distribution checks.


BUYING SHARES

If we receive your check (or electronic transfer) by the close of trading on the
New York Stock Exchange (generally 4 p.m. Eastern time) on a regular business
day, your investment in either the Insured Intermediate-Term or the Insured
Long-Term Portfolio will be converted to federal funds and credited to your
account at that day's closing price, the next-determined net asset value. You
will begin earning dividends on your investment the following calendar day.
(Federal

                      Investor Information 1-800-662-7447
                         Client Services 1-800-662-2739
                          Tele-Account 1-800-662-6273

                                       18
<PAGE>


BUYING SHARES (continued) 

funds are Federal Reserve deposits that banks and other financial institutions
"borrow" from one another to meet short-term cash needs; portfolio advisers must
use federal funds to pay for the securities they buy.)
   Your investment in the Money Market Portfolio will also be converted to
federal funds and credited to your account; however, the conversion to federal
funds for Money Market Portfolio investments takes one business day. Because of
this conversion period, your Money Market Portfolio account will be credited on
the business day following the day we receive your check. You will begin earning
dividends on your investment on the next calendar day. For example, if we
receive your check before the close of trading on the New York Stock Exchange on
a Thursday, your account will be credited the next business day (Friday) and you
will begin earning dividends on Saturday.
   Each of the Fund's Portfolios is offered on a no-load basis, meaning that you
do not pay sales commissions or 12b-1 marketing fees.
<TABLE>
<CAPTION>

                                       OPEN A NEW ACCOUNT                       ADD TO AN EXISTING ACCOUNT
<S>                                    <C>                                      <C>
MINIMUM INVESTMENT                     $3,000 (regular account); $1,000         $100 by mail or exchange; $1,000
                                       (custodial accounts for minors).         by wire.                        
                                                                                   
BY MAIL                                Complete and sign the application        Mail your check with an Invest-By-
[ENVELOPE GRAPHIC]                     form.                                    Mail form detached from           
FIRST-CLASS mail to:                                                            your confirmation statement to    
The Vanguard Group                                                              the address listed on the form.   
P.O. Box 2600                                                                   
Valley Forge, PA 19482-2600            Make your check payable to:              Make your check payable to:           
                                       The Vanguard Group-(insert appropriate   The Vanguard Group-(insert appropriate
EXPRESS or REGISTERED mail to:         Portfolio Number, see below)             Portfolio Number, see below)          
The Vanguard Group                     Money Market                   62        Money Market                   62     
455 Devon Park Drive                   Insured Intermediate-Term     100        Insured Intermediate-Term     100     
Wayne, PA 19087-1815                   Insured Long-Term              75        Insured Long-Term              75     
                                                                                    
                                       All purchases must be made in            All purchases must be made in
                                       U.S. dollars, and checks must            U.S. dollars, and checks must
                                       be drawn on U.S. banks.                  be drawn on U.S. banks.      

IMPORTANT NOTE: To prevent check fraud, Vanguard will not accept checks made 
payable to third parties.

BY TELEPHONE                           Call Vanguard Tele-Account* 24           Call Vanguard Tele-Account* 24 
[TELEPHONE GRAPHIC]                    hours a day--or Client Services          hours a day--or Client Services
1-800-662-6273                         during business hours--to                during business hours--to      
Vanguard Tele-Account(R)               exchange from another Vanguard           exchange from another Vanguard 
                                       fund account with the same               fund account with the same     
1-800-662-2739                         registration (name, address,             registration (name, address,   
Client Services                        taxpayer I.D., and account               taxpayer I.D., and account     
                                       type).                                   type).                         
                                                                                                               
                                                                                Use Vanguard Fund Express (see 
                                                                                "Services and Account          
                                                                                Features") to transfer assets  
                                                                                from your bank account. Call   
                                                                                Client Services before your    
                                                                                first use to verify that this  
                                                                                option is in place.            
                                       
                                       *You must obtain a Personal Identification Number through Tele-Account
                                        at least seven days before you request your first exchange.

</TABLE>
                     Investor Information 1-800-662-7447
                        Client Services 1-800-662-2739
                         Tele-Account 1-800-662-6273


                                  19




<PAGE>

BUYING SHARES (continued)

FOR THE MONEY MARKET PORTFOLIO ONLY: If you buy Portfolio shares through an
exchange from another Vanguard fund by the close of trading on the New York
Stock Exchange, your investment does not have to be converted to federal
funds; you begin earning dividends the next calendar day.

IMPORTANT NOTE: Once a telephone transaction has been approved by you and a
confirmation number assigned, it cannot be revoked. We reserve the right to
refuse any purchase.
<TABLE>
<CAPTION>

                                       OPEN A NEW ACCOUNT                       ADD TO AN EXISTING ACCOUNT
<S>                                    <C>                                      <C>
BY WIRE                                Call Client Services to arrange          Call Client Services to arrange
[WIRE GRAPHIC]                         your wire transaction.                   your wire transaction.         
Wire to:                                                                        
CoreStates Bank, N.A.
ABA 031000011
CoreStates No. 0141 1274
[Temporary Account Number]
Vanguard California Tax-Free Fund      
[Portfolio Name]
[Account Registration]
Attention: Vanguard

FOR THE MONEY MARKET PORTFOLIO ONLY: If you buy Portfolio shares through a
federal funds wire, your investment begins earning dividends the next calendar
day. You can begin earning dividends immediately if you notify Vanguard by
10:45 a.m. Eastern time that you intend to make a wire purchase that day.

AUTOMATICALLY                          --                                       Vanguard offers a variety of ways
                                                                                that you can add to your account 
                                                                                automatically. See "Services and 
                                                                                Account Features."               
</TABLE>

You can redeem (that is, sell or exchange) shares purchased by check or
Vanguard Fund Express at any time. However, while your redemption request will
be processed at the next-determined net asset value after it is received, your
redemption proceeds will not be available until payment for your purchase is
collected, which may take up to ten calendar days. 

IMPORTANT NOTE: If you buy Portfolio shares through a registered broker/dealer
or investment adviser, the broker/dealer or adviser may charge you a service
fee.

     It is important that you call Vanguard before you invest a large dollar
amount by wire or check. We must consider the interests of all Portfolio
shareholders and so reserve the right to delay or refuse any purchase that
will disrupt the Portfolio's operation or performance.

REDEEMING SHARES

IMPORTANT TAX NOTE: Any sale or exchange of Portfolio shares could result in a
taxable gain or loss. However, because the Money Market Portfolio seeks to
maintain a stable net asset value of $1 per share, you will not incur a
taxable gain or loss when you sell or exchange shares of this Portfolio.

The ability to redeem (that is, sell or exchange) Portfolio shares by telephone
is automatically established for your account unless you tell us in writing that
you do not want this option.
     To protect your account from unauthorized or fraudulent telephone
instructions, Vanguard follows specific security procedures. When we receive a
call requesting an account transaction, we require the caller to provide:


                     Investor Information 1-800-662-7447
                        Client Services 1-800-662-2739
                         Tele-Account 1-800-662-6273

                                      20
<PAGE>


REDEEMING SHARES (continued)

[CHECK MARK] Portfolio name.
[CHECK MARK] 10-digit account number.
[CHECK MARK] Name and address exactly as registered on that account.
[CHECK MARK] Social Security or employer identification number as registered on
             that account.
   If you call to sell shares, the sale proceeds will be made payable to you, as
the registered shareholder, and mailed to your account's address of record.
   If we follow reasonable security procedures, neither the Portfolios nor
Vanguard will be responsible for the authenticity of transaction instructions
received by telephone. We believe that these procedures are reasonable and that,
if we follow them, you bear the risk of any losses resulting from unauthorized
or fraudulent telephone transactions on your account.

HOW TO SELL SHARES
You may withdraw any part of your account, at any time, by selling shares.
   One way to sell shares is the checkwriting option (established when you set
up your account or by completing a Checkwriting Signature Form, which can be
ordered by calling Client Services). Your personalized Vanguard checks work in
much the same way as bank checks, except that Vanguard checks are considered
drafts and cannot be cashed immediately like a bank check. You cannot write a
Vanguard check to redeem shares that you purchased by check within the previous
ten calendar days.
   When you sell shares by telephone or mail, sale proceeds are normally mailed
within two business days after Vanguard receives your request. The sale price of
your shares will be the Portfolio's next-determined net asset value after
Vanguard receives your request in good order. Good order means that the request
includes:
[CHECK MARK] Portfolio name and account number.
[CHECK MARK] Amount of the transaction (in dollars or shares).
[CHECK MARK] Signatures of all owners exactly as registered on the account.
[CHECK MARK] Signature guarantees (if required).
[CHECK MARK] Any supporting legal documentation that may be required.
[CHECK MARK] Any certificates you are holding for the account.
   Sales or exchange requests received after the close of trading on the New
York Stock Exchange (generally 4 p.m. Eastern time) are processed the next
business day. No interest will accrue on amounts represented by uncashed
redemption checks. The Portfolios will not cancel any trade (e.g., purchase,
redemption, or exchange) believed to be authentic, once the trade request has
been received in writing or by telephone.
   The Portfolios reserve the right to close any account in which the balance
falls below the minimum initial investment. The Portfolios will deduct a $10
annual fee in either June or December if your account balance falls below $2,500
or if your UGMA/UTMA account balance falls below $500. The fee is waived if your
total Vanguard account assets are $50,000 or more.

 Some written requests require a signature guarantee from a bank, broker, or
 other acceptable financial institution. A notary public cannot provide a
 signature guarantee.

HOW TO EXCHANGE SHARES
An exchange is the selling of shares of one Vanguard fund to purchase shares of
another.
   Although we make every effort to maintain the exchange privilege, Vanguard
reserves the right to revise or terminate the exchange privilege, limit the
amount of an exchange, or reject any exchange, at any time, without notice.

                     Investor Information 1-800-662-7447
                        Client Services 1-800-662-2739
                         Tele-Account 1-800-662-6273

                                      21
<PAGE>


REDEEMING SHARES (continued)

   Because excessive exchanges can potentially disrupt the management of the
Portfolios and increase transaction costs, Vanguard limits exchange activity to
TWO SUBSTANTIVE EXCHANGE REDEMPTIONS (at least 30 days apart) from the Insured
Long-Term Portfolio (but not the Money Market Portfolio) during any 12-month
period. "Substantive" means either a dollar amount or a series of movements
between Vanguard funds that Vanguard determines, in its sole discretion, could
have an adverse impact on the management of the Portfolio.
   Before you exchange into a new Vanguard fund, be sure to read its prospectus.
For a copy and for answers to questions you might have, call Investor
Information.


SELLING OR EXCHANGING SHARES           INSTRUCTIONS
BY TELEPHONE                           Call Vanguard Tele-Account* 24 hours a   
[TELEPHONE GRAPHIC]                    day--or Client Services during business  
1-800-662-6273                         hours--to sell or exchange shares. You   
Vanguard Tele-Account(R)               can exchange shares from either          
                                       Portfolio to open an account in another  
1-800-662-2739                         Vanguard fund or to add to an existing   
Client Services                        Vanguard fund account with an identical  
                                       registration. 

                                       *You must obtain a Personal            
                                       Identification Number through          
                                       Tele-Account at least seven days before
                                       you request your first redemption.     

BY MAIL                                Send a letter of instruction signed by  
[ENVELOPE GRAPHIC]                     all registered account holders. Include 
FIRST-CLASS mail to:                   the Portfolio name and account number   
The Vanguard Group                     and (if you are selling) a dollar       
Vanguard California Tax-Free Fund      amount or number of shares OR (if you   
P.O. Box 1120                          are exchanging) the name of the fund    
Valley Forge, PA 19482-1120            you want to exchange into and a dollar  
                                       amount or number of shares. To exchange 
EXPRESS or REGISTERED mail to:         into an account with a different        
The Vanguard Group                     registration (including a different     
Vanguard California Tax-Free Fund      name, address, or taxpayer              
455 Devon Park Drive                   identification number), you must        
Wayne, PA 19087-1815                   provide Vanguard with written           
                                       instructions that include the           
                                       guaranteed signatures of all current    
                                       account owners.                         
                                       
EXCHANGING SHARES ONLINE               You may use your personal computer to  
[COMPUTER GRAPHIC]                     exchange shares of most Vanguard funds 
                                       by accessing our website               
                                       (www.vanguard.com). To establish this  
                                       service for your account, you must     
                                       first register through the website. We 
                                       will then send to you, by mail, an     
                                       account access password that will      
                                       enable you to make online exchanges.   
                                                                              
                                       The Vanguard funds that you cannot     
                                       purchase or sell through online        
                                       exchanges are VANGUARD INDEX TRUST,    
                                       VANGUARD BALANCED INDEX FUND, VANGUARD 
                                       INTERNATIONAL EQUITY INDEX FUND,       
                                       VANGUARD REIT INDEX PORTFOLIO, VANGUARD
                                       TOTAL INTERNATIONAL PORTFOLIO, and     
                                       VANGUARD GROWTH AND INCOME PORTFOLIO   
                                       (formerly known as Vanguard            
                                       Quantitative Portfolios). These funds  
                                       do permit online exchanges within IRAs 
                                       and other retirement accounts.         

BY CHECK                               You can sell shares by writing a     
[PERSONAL CHECK GRAPHIC]               checkwriting draft for $250 or more. 
                                       

                     Investor Information 1-800-662-7447
                        Client Services 1-800-662-2739
                         Tele-Account 1-800-662-6273

                                      22
<PAGE>
REDEEMING SHARES (continued)


SELLING OR EXCHANGING SHARES           INSTRUCTIONS

AUTOMATICALLY                          Vanguard offers several ways to sell or 
[CIRCLE OF ARROWS GRAPHIC]             exchange shares automatically (see      
                                       "Services and Account Features"). Call  
                                       Investor Information for the            
                                       appropriate booklet and application if  
                                       you did not elect a feature when you    
                                       opened your account.                    


It is important that you call Vanguard before you redeem a large dollar
amount. We must consider the interests of all Portfolio shareholders and so
reserve the right to delay delivery of your redemption proceeds--up to seven
days--if the amount will disrupt the Portfolio's operation or performance.

                        A NOTE ON UNUSUAL CIRCUMSTANCES
Vanguard reserves the right to revise or terminate the telephone redemption
privilege at any time, without notice. In addition, Vanguard can stop selling
shares or postpone payment at times when the New York Stock Exchange is closed
or under any emergency circumstances as determined by the U.S. Securities and
Exchange Commission. If you experience difficulty making a telephone
redemption during periods of drastic economic or market change, you can send
us your request by regular or express mail. Follow the instructions on selling
or exchanging shares by mail in the "Redeeming Shares" section.

TRANSFERRING REGISTRATION

HOW TO TRANSFER SHARES
You may transfer the registration of any of your Portfolio shares to another
owner by completing a transfer form and sending it to: The Vanguard Group,
Attention: Transfer Department, P.O. Box 1110, Valley Forge, PA 19482-1110.

PORTFOLIO AND ACCOUNT UPDATES

STATEMENTS AND REPORTS
We will send you clear, concise account and tax statements to help you keep
track of your Portfolio account throughout the year as well as when you are
preparing your income tax returns.
   In addition, you will receive financial reports about each Portfolio twice
a year. These comprehensive reports include an assessment of each Portfolio's
performance (and a comparison with its industry benchmark), an overview of the
markets, a report from the adviser, a listing of the Portfolio's holdings, and
other financial statements. 


CONFIRMATION STATEMENT            Sent each time you buy, sell, or   
                                  exchange shares; confirms the trade
                                  date and the amount of your        
                                  transaction.                       

PORTFOLIO SUMMARY                 Mailed quarterly; shows the market    
[BOOK GRAPHIC]                    value of your account at the close of 
                                  the statement period, as well as      
                                  distributions, purchases, sales, and  
                                  exchanges for the current calendar    
                                  year.                                 
   
FUND FINANCIAL REPORTS            Mailed in January and July for each Portfolio.
    
TAX STATEMENTS                    Generally mailed in January; report     
                                  previous year's taxable distributions   
                                  and proceeds from the sale of Portfolio 
                                  shares. 



                     Investor Information 1-800-662-7447
                        Client Services 1-800-662-2739
                         Tele-Account 1-800-662-6273

                                      23
<PAGE>

PORTFOLIO AND ACCOUNT UPDATES (continued)

AVERAGE COST STATEMENT                Issued quarterly for most taxable    
[BOOK GRAPHIC]                        accounts (accompanies your Portfolio 
                                      Summary); shows the average cost of  
                                      shares that you redeemed during the  
                                      calendar year, using the average-cost
                                      single-category method.              

CHECKWRITING STATEMENT                Sent monthly to shareholders using     
                                      Vanguard's checkwriting option. Our    
                                      clear, easy-to-use statement provides  
                                      images of the front and back of each   
                                      checkwriting draft paid in the previous
                                      month. This consolidated statement is  
                                      sent instead of the original canceled  
                                      drafts, which will not be returned.    

AUTOMATED TELEPHONE ACCESS                                      
   
VANGUARD TELE-ACCOUNT                  Toll-free access to Vanguard fund and
1-800-662-6273                         account information--as well as some   
Any time, seven days a week,           transactions--through any              
from anywhere in the continental       Touch-Tone(TM) telephone. Tele- Account
United States and Canada.              provides total return, share price,    
                                       price change, and yield quotations for 
                                       all Vanguard funds; gives your account 
                                       balances and history (e.g., last       
                                       transaction, latest dividend           
                                       distribution, redemptions by check     
                                       during the last three months); and     
                                       allows you to sell or exchange fund    
                                       shares. 
    
COMPUTER ACCESS

VANGUARD ONLINE(R)                     Use your personal computer to learn     
www.vanguard.com                       more about Vanguard's funds and         
                                       services; keep in touch with your       
                                       Vanguard accounts; map out a long-term  
                                       investment strategy; initiate certain   
                                       transactions; and ask questions, make   
                                       suggestions, and send messages to       
                                       Vanguard.                               
                                                                               
                                       Our education-oriented website provides 
                                       timely news and information about       
                                       Vanguard's funds and services; an       
                                       online "university" that offers a       
                                       variety of mutual fund classes; and     
                                       easy-to-use, interactive tools to help  
                                       you create your own investment and      
                                       retirement strategies.                  

                     Investor Information 1-800-662-7447
                        Client Services 1-800-662-2739
                         Tele-Account 1-800-662-6273

                                      24


<PAGE>

GLOSSARY OF INVESTMENT TERMS

ALTERNATIVE MINIMUM TAX (AMT)
A separate tax system designed to ensure that individuals pay at least
a minimum amount of federal income taxes. Certain securities used to
fund private, for-profit activities are subject to AMT.

BOND
A debt security (IOU) issued by a corporation, government, or
government agency in exchange for the money you lend it. In most
instances, the issuer agrees to pay back the loan by a specific date
and to make regular interest payments until that date.

CAPITAL GAINS DISTRIBUTION
Payment to mutual fund shareholders of gains realized during the year
on securities that the fund has sold at a profit, minus any realized
losses.

CASH RESERVES
Cash deposits as well as short-term bank deposits, money market
instruments, U.S. Treasury bills, bank certificates of deposit (CDs),
repurchase agreements, commercial paper, and banker's acceptances.

DIVIDEND INCOME
Payment to shareholders of net income from interest or dividends
generated by a fund's investments.
   
DURATION
A measure of the sensitivity of bond--and bond fund--prices to
interest rate movements. For example, if a bond has a duration of two
years, its price would fall by about 2% when interest rates rose 1
percentage point. On the other hand, the bond's price would rise by
about 2% when interest rates fell by 1 percentage point.
    
EXPENSE RATIO
The percentage of a fund's average net assets used to pay its
expenses. The expense ratio includes management fees, administrative
fees, and any 12b-1 marketing fees.

FACE VALUE
The amount to be paid at maturity of a bond; the par value or
principal.

FIXED-INCOME SECURITIES
Investments, such as bonds, that have a fixed payment schedule. While
the level of income offered by these securities is predetermined,
their prices may fluctuate.

INSURED BONDS
Bonds whose payments of both principal and interest are guaranteed.
The insurance does not guarantee the value of the bonds, only that
bond payments will be made in a timely fashion.

INVESTMENT ADVISER
An organization that makes the day-to-day decisions regarding a
portfolio's investments.
   
INVESTMENT GRADE
Bonds whose credit quality is considered by independent bond-rating
agencies to be among the highest.
    
MATURITY
The date when a bond issuer agrees to return the bond's principal, or
face value, to the bond's buyer.

MUNICIPAL BOND
A bond issued by a state or local government. Dividend income from
municipal bonds is generally free from federal income taxes, as well
as taxes in the state in which it was issued.
       
NET ASSET VALUE (NAV)
The market value of a mutual fund's total assets, minus liabilities,
divided by the number of shares outstanding. The value of a single
share is called its share value or share price.
       
TOTAL RETURN
A percentage change, over a specified time period, in a mutual fund's
net asset value, with the ending net asset value adjusted to account
for the reinvestment of all distributions of dividends and capital
gains.

VOLATILITY
The fluctuations in value of a mutual fund or other security. The
greater a fund's volatility, the wider the fluctuations between its
high and low prices.

YIELD
Current income (interest or dividends) earned by an investment,
expressed as a percentage of the investment's price.

<PAGE>
                                                     [THE VANGUARD GROUP LOGO]
                                                          Post Office Box 2600
                                                        Valley Forge, PA 19482










<TABLE>
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<S>                                               <C>                                     <C>   
INVESTOR INFORMATION                              VANGUARD BROKERAGE                      ELECTRONIC ACCESS TO THE   
DEPARTMENT                                        SERVICES                                VANGUARD MUTUAL FUND       
1-800-662-7447 (SHIP)                             1-800-992-8327                          EDUCATION AND INFORMATION  
TEXT TELEPHONE:                                   For information on trading              CENTER                     
1-800-952-3335                                    stocks, bonds, and options              World Wide Web             
For information on our funds,                     at reduced commissions                  www.vanguard.com           
fund services, and retirement                                                                                        
accounts; requests for                            VANGUARD TELE-ACCOUNT(R)                E-mail                     
literature                                        1-800-662-6273 (ON-BOARD)               [email protected]        
                                                  For 24-hour automated access            
CLIENT SERVICES DEPARTMENT                        to price and yield, information  
1-800-662-2739 (CREW)                             on your account, and certain     
TEXT TELEPHONE:                                   transactions                     
1-800-662-2738                                    
For information on your
account, account transactions,
and account statements

</TABLE>











                                                   (C) 1998 Vanguard Marketing
                                                   Corporation, Distributor

                                                   P075N

<PAGE>

                                    PART B
                       VANGUARD CALIFORNIA TAX-FREE FUND
                    VANGUARD FLORIDA INSURED TAX-FREE FUND
                       VANGUARD NEW JERSEY TAX-FREE FUND
                        VANGUARD NEW YORK TAX-FREE FUND
                          VANGUARD OHIO TAX-FREE FUND
                      VANGUARD PENNSYLVANIA TAX-FREE FUND

            (COLLECTIVELY THE "Funds" and Individually the "Fund")


                                March 27, 1998


     This Statement of Additional Information is not a prospectus but should be
read in conjunction with the appropriate Fund's current Prospectus dated March
27, 1998. To obtain this Prospectus, please call:


                  Vanguard's Investor Information Department
                                1-800-662-7447


                               TABLE OF CONTENTS



   
<TABLE>
<CAPTION>
                                                                            Page
                                                                           -----
<S>                                                                        <C>
Investment Limitations .................................................    B-2
Investment Policies ....................................................    B-3
Risk Factors ...........................................................    B-7
Florida Intangible Personal Property Tax ...............................   B-16
Yield and Total Return .................................................   B-16
Calculation of Yield ...................................................   B-18
Performance Measures ...................................................   B-21
Investment Management ..................................................   B-24
Portfolio Transactions .................................................   B-24
Purchase of Shares .....................................................   B-25
Redemption of Shares ...................................................   B-25
Share Price ............................................................   B-26
Management of the Fund .................................................   B-27
Description of Shares and Voting Rights ................................   B-34
Financial Statements ...................................................   B-35
Appendix A - Description of Municipal Bonds and their Ratings ..........   B-36
</TABLE>
    

     Throughout this Statement of Additional Information, "the Fund" is
intended to refer to each Fund listed on the cover page, and "the Portfolio" is
intended to refer to each Portfolio of each Fund, unless otherwise indicated.

                                                                             B-1
<PAGE>

                            INVESTMENT LIMITATIONS


   
     The following restrictions supplement the Fund's investment limitations
set forth in the Prospectus. Except as indicated otherwise, these restrictions
are fundamental policies of each Portfolio, which cannot be changed without the
approval of a majority (as defined in the Investment Company Act of 1940 (the
"1940 Act")) of the Portfolio's outstanding voting shares.
    

      1. Each Portfolio will not invest in securities other than Municipal
   Securities except that a Portfolio may make temporary investments in
   certain short-term taxable securities issued by or on behalf of municipal
   or corporate issuers, obligations of the United States Government and its
   agencies or instrumentalities, commercial paper, bank certificates of
   deposit, and any such items subject to short-term repurchase agreements;

      2. Each Portfolio will limit the aggregate value of all holdings (except
   U.S. Government and cash items), as defined under Subchapter M of the
   Internal Revenue Code (the "Code"), each of which exceeds 5% of the
   Portfolio's total assets, to an aggregate amount of 50% of such assets;

      3. Each Portfolio will limit the aggregate value of holdings of a single
   issuer (except U.S. Government and cash items, as defined in the Code) to a
   maximum of 25% of the Portfolio's total assets;

      4. Each Portfolio will not borrow money except for temporary or emergency
   purposes and then only in an amount not exceeding 10% of the value of the
   net assets of that Portfolio. The Portfolio will repay all borrowing before
   making additional investments. Interest paid on such borrowings will reduce
   income;

      5. Each Portfolio will not pledge, mortgage or hypothecate its assets to
   any extent greater than 10% of the value of the total assets of the
   Portfolio;

      6. Each Portfolio will not issue senior securities as defined in the 1940
   Act;

      7. Each Portfolio will not engage in the business of underwriting
   securities issued by other persons, except to the extent that the Portfolio
   may technically be deemed an underwriter under the Securities Act of 1933,
   as amended, in disposing of portfolio securities;

      8. Each Portfolio will not purchase or sell real estate, but this shall
   not prevent investments in municipal bonds secured by real estate or
   interests therein;

      9. Each Portfolio will not make loans to other persons, except by the
   purchase of bonds, debentures or similar obligations. In addition, although
   the Portfolios have no present intention to do so, each Portfolio reserves
   the right to lend its investment securities to qualified institutions in
   accordance with guidelines of the Securities and Exchange Commission;

      10. Each Portfolio will not purchase on margin or sell short, except as
   specified below in Investment Limitation No. 12;

      11. Each Portfolio (with the exception of the New York Money Market
   Portfolio) will not purchase or retain securities of an issuer if the
   Trustees of the Fund who individually own more than 1/2 of 1% of such
   securities together own more than 5% of the securities of such issuer;

      12. Each Portfolio will not purchase or sell commodities or commodities
   contracts, except that the California Insured Intermediate-Term, California
   Insured Long-Term, New Jersey Insured Long-Term, New


B-2
<PAGE>

   
   York Insured Long-Term, Ohio Insured Long Term, and Pennsylvania Insured
   Long-Term Portfolios, and the Vanguard Florida Insured Tax-Free Fund may
   invest in bond futures contracts, bond options and options on bond futures
   contracts to the extent that not more than 5% of a Portfolio's assets are
   required as deposits on futures contracts and (with the exception of the
   Florida Insured Tax-Free Fund) not more than 20% of the Portfolio's assets
   are invested in futures contracts and/or options transactions at any time;
    

      13. Each Portfolio will not invest its assets in securities of other
   investment companies except as they may be part of a merger, consolidation,
   reorganization or acquisition of assets or otherwise, to the extent
   permitted by Section 12 of the 1940 Act;

      14. Each Portfolio will not invest in put, call, straddle or spread
   options (except as described above in investment limitation No. 12) or
   interests in oil, gas or other mineral exploration or development programs;
    

      15. Each Portfolio (with the exception of the New York Money Market
   Portfolio, and the Portfolios of New Jersey Tax-Free Fund) will not
   purchase an industrial revenue bond if as a result of such purchase (i)
   more than 5% of the Portfolio's total assets, determined at market value at
   the time of the proposed investment, would be invested in industrial
   revenue bonds where the payment of principal and interest is the
   responsibility of a company with less than three (3) years' operating
   history, or (ii) more than 20% of the Portfolio's total assets, determined
   at market value at the time of the proposed investment, would be invested
   in industrial development bonds. These restrictions do not apply to
   municipal obligations where the payment of principal and interest is the
   responsibility of a government or the political subdivision of a
   government; and

   
      16. Each Portfolio will not purchase or otherwise acquire any security,
   if as a result, more than 15% (10% with respect to the Money Market
   Portfolios of the Funds) of its net assets would be invested in securities
   that are illiquid (included in this limitation is the Fund's investment in
   The Vanguard Group, Inc.).
    

     The investment limitations set forth above are considered at the time that
investment securities are purchased. If a percentage restriction is adhered to
at the time the investment is made, a later increase in percentage resulting
from a change in the market value of assets will not constitute a violation of
such restriction. Notwithstanding these limitations, each Portfolio may own all
or any portion of the securities of, or make loans to, or contribute to the
costs or other financial requirements of, any company which will be (1) wholly
owned by the Fund and one or more other investment companies and (2) primarily
engaged in the business of providing, at cost, management, administrative,
distribution and/or related services to the Fund and such other investment
companies.


                              INVESTMENT POLICIES


Futures Contracts

   
     Each Portfolio of the Fund (except the Money Market Portfolio) may enter
into futures contracts, options, and options on futures contracts for several
reasons: to simulate full investment in the underlying securities while
retaining a cash balance for Fund management purposes, to facilitate trading,
to reduce transaction costs, or to seek higher investment returns from
intermarket arbitrage opportunities when a futures contract is mispriced
relative to the underlying security or index. Futures contracts provide for the
future sale by one party and purchase by another party of a specified amount of
a specific security at a specified future time and
    


                                                                             B-3
<PAGE>

at a specified price. Futures contracts which are standardized as to maturity
date and underlying financial instrument are traded on national futures
exchanges. Futures exchanges and trading are regulated under the Commodity
Exchange Act by the Commodity Futures Trading Commission ("CFTC"), a U.S.
Government agency. Assets committed to futures contracts will be segregated at
the Fund's custodian bank to the extent required by law.


     Most futures contracts are closed out before the settlement date without
the making or taking of delivery. Closing out an open futures position is done
by taking an opposite position ("buying" a contract which has previously been
"sold," or "selling" a contract previously purchased) in an identical contract
to terminate the position. Brokerage commissions are incurred when a futures
contract is bought or sold.


     Futures traders are required to make a good faith margin deposit in cash
or securities with a broker or custodian to initiate and maintain open
positions in futures contracts. A margin deposit is intended to assure
completion of the contract (delivery or acceptance of the underlying security)
if it is not terminated prior to the specified delivery date. Minimal initial
margin requirements are established by the futures exchange and may be changed.
The Fund expects to earn interest income on its initial margin deposit.


     After a futures contract position is opened, the value of the contract is
marked to market daily. If the futures contract price changes, to the extent
that the margin on deposit does not satisfy margin requirements, payment of
additional "variation" margin will be required. Conversely, changes in the
contract value may reduce the required margin, resulting in a repayment of
excess margin to the contract holder.


     Traders in futures contracts may be broadly classified as either "hedgers"
or "speculators." Hedgers use the futures markets primarily to offset
unfavorable changes in the value of securities otherwise held for investment
purposes or expected to be acquired by them. Speculators are less inclined to
own the securities underlying the futures contracts which they trade, and use
futures contracts with the expectation of realizing profits from fluctuations
in the prices of underlying securities. Under CFTC regulations, the Portfolios
may use futures transactions for bona fide hedging purposes only, except that a
Portfolio may establish non-hedging futures positions if the aggregate initial
margin and premiums for such positions do not exceed 5% of the value of the
Portfolio's assets.


     Although techniques other than the sale and purchase of futures contracts
could be used to control a Portfolio's exposure to market fluctuations, the use
of futures contracts may be a more effective means of hedging this exposure.


Restrictions on the Use of Futures Contracts


     A Portfolio will not enter into futures contract transactions to the
extent that, immediately thereafter, the sum of its initial margin deposits on
open contracts exceeds 5% of the market value of the applicable Fund's total
assets. In addition, a Portfolio will not enter into futures contracts to the
extent that its outstanding obligations to purchase securities under these
contracts would exceed 20% of the Portfolio's total assets.


Risk Factors in Futures Transactions


     Positions in futures contracts may be closed out only on an Exchange which
provides a secondary market for such futures. However, there can be no
assurance that a liquid secondary market will exist for any


B-4
<PAGE>

particular futures contract at any specific time. Thus, it may not be possible
to close a futures position. In the event of adverse price movements, a
Portfolio would continue to be required to make daily cash payments to maintain
its required margin. In such situations, if the Portfolio has insufficient
cash, it may have to sell portfolio securities to meet daily margin
requirements at a time when it may be disadvantageous to do so. In addition,
the Portfolio may be required to make delivery of the instruments underlying
futures contracts it holds. The inability to close options and futures
positions also could have an adverse impact on the ability to effectively
hedge.

   
     The Vanguard Florida Insured Tax-Free Fund, the California Insured
Intermediate-Term Portfolio, and the Insured Long-Term Portfolio of each Fund
will minimize the risk that they will be unable to close out a futures contract
by only entering into futures which are traded on national futures exchanges
and for which there appears to be a liquid secondary market.
    

     The risk of loss in trading futures contracts in some strategies can be
substantial, due both to the low margin deposits required, and the extremely
high degree of leverage involved in futures pricing. As a result, a relatively
small price movement in a futures contract may result in immediate and
substantial loss (as well as gain) to the investor. For example, if at the time
of purchase, 10% of the value of the futures contract is deposited as margin, a
subsequent 10% decrease in the value of the futures contract would result in a
total loss of the margin deposit, before any deduction for the transaction
costs, if the account were then closed out. A 15% decrease would result in a
loss equal to 150% of the original margin deposit if the contract were closed
out. Thus, a purchase or sale of a futures contract may result in losses in
excess of the initial margin requirement for the contract. However, because the
futures strategies of the Portfolios are engaged in only for hedging purposes
and will not be leveraged, the Adviser does not believe that the Portfolios are
subject to the risks of loss frequently associated with futures transactions.
The Portfolios would presumably have sustained comparable losses if, instead of
the futures contract, they had invested in the underlying financial instrument
and sold it after the decline.

   
     Utilization of futures transactions by a Portfolio does involve the risk
of imperfect or no correlation where the securities underlying futures
contracts have different maturities or other characteristics than the portfolio
securities being hedged. It is also possible that a Portfolio could both lose
money on futures contracts and also experience a decline in value of its
portfolio securities. There is also the risk of loss by a Portfolio of margin
deposits in the event of bankruptcy of a broker with whom the Portfolio has an
open position in a futures contract or related option.
    

     Most futures exchanges limit the amount of fluctuation permitted in
futures contract prices during a single trading day. The daily limit
establishes the maximum amount that the price of a futures contract may vary
either up or down from the previous day's settlement price at the end of a
trading session. Once the daily limit has been reached in a particular type of
contract, no trades may be made on that day at a price beyond that limit. The
daily limit governs only price movement during a particular trading day and
therefore does not limit potential losses, because the limit may prevent the
liquidation of unfavorable positions. Futures contract prices have occasionally
moved to the daily limit for several consecutive trading days with little or no
trading, thereby preventing prompt liquidation of future positions and
subjecting some futures traders to substantial losses.


Other Types of Derivatives

     In addition to futures and options, each Portfolio may invest in other
types of derivatives, including warrants, swap agreements and partnerships or
grantor trust derivative products. Derivatives are instruments


                                                                             B-5
<PAGE>

whose value is linked to or derived from an underlying security. Derivatives
may be traded separately on exchanges or in the over-the-counter market, or
they may be imbedded in securities. The most common imbedded derivative is the
call option attached to or imbedded in a callable bond. The owner of a
traditional callable bond holds a combination of a long position in a
non-callable bond and a short position in a call option on that bond.

     Derivative instruments may be used individually or in combination to hedge
against unfavorable changes in interest rates, or to take advantage of
anticipated changes in interest rates. Derivatives may be structured with no or
a high degree of leverage. When derivatives are used as hedges, the risk
incurred is that the derivative instrument's value may change differently than
the value of the security being hedged. This "basis risk" is generally lower
than the risk associated with an unhedged position in the security being
hedged. Some derivatives may entail liquidity risk, i.e., the risk that the
instrument cannot be sold at a reasonable price in highly volatile markets.
Leveraged derivatives used for speculation are very volatile, and therefore,
very risky. However, the Portfolios will only utilize derivatives for hedging
or arbitrage purposes, and not for speculative purposes. Over-the-counter
derivatives involve a counterparty risk, i.e., the risk that the individual or
institution on the other side of the agreement will not or cannot meet its
obligations under the derivative agreement.


Federal Tax Treatment of Futures Contracts
   
     Except for transactions they have identified as hedging transactions, the
California Insured Intermediate-Term Portfolio, the Insured Long-Term Portfolio
of each Fund, and Vanguard Florida Insured Tax-Free Fund are required for
federal income tax purposes to recognize as income for each taxable year their
net unrealized gains and losses on certain futures contracts held as of the end
of the year as well as those actually realized during the year. In most cases,
any gain or loss recognized with respect to a futures contract is considered to
be 60% long-term capital gain or loss and 40% short-term capital gain or loss,
without regard to the holding period of the contract. Furthermore, sales of
futures contracts which are intended to hedge against a change in the value of
securities held by a Portfolio may affect the holding period of such securities
and, consequently, the nature of the gain or loss on such securities upon
disposition. A Portfolio may be required to defer the recognition of losses on
futures contracts to the extent of any unrecognized gains on related positions
held by the Portfolio.

     In order for each Portfolio to continue to qualify for Federal income tax
treatment as a regulated investment company, at least 90% of its gross income
for a taxable year must be derived from qualifying income; i.e., dividends,
interest, income derived from loans of securities, gains from the sale of
securities, or of foreign currencies or other income derived with respect to
the Portfolio's business of investing in securities. It is anticipated that any
net gain realized from the closing out of futures contracts will be considered
gain from the sale of securities and therefore be qualifying income for
purposes of the 90% requirement.

     Each Portfolio will distribute to shareholders annually any net capital
gains which have been recognized for federal income tax purposes (including
unrealized gains at the end of the Portfolio's fiscal year) on futures
transactions. Such distributions will be combined with distributions of capital
gains realized on the Portfolio's other investments and shareholders will be
advised on the nature of the transactions.
    


Municipal Lease Obligations

     Each Portfolio of the Fund may invest in municipal lease obligations.
These securities are sometimes considered illiquid because of the inefficiency
and thinness of the market in which they are traded. Under the


B-6
<PAGE>

supervision of the Fund's Board of Trustees, the Fixed Income Group may
determine to treat certain municipal lease obligations as liquid, and therefore
not subject to the Fund's 15% limit on illiquid securities (10% for the Money
Market Portfolios). The factors that the Group may consider in making these
liquidity determinations include: (1) the frequency of trades and quotations
for the security; (2) the number of dealers willing to purchase or sell the
security and the number of other potential buyers; (3) the willingness of
dealers to underwrite and make a market in the security; (4) the nature of the
marketplace trades, including the time needed to dispose of the security, the
method of soliciting offers, and the mechanics of transfer; and (5) factors
unique to a particular security, including general credit worthiness of the
issuer, the importance to the issuer of the property covered by the lease and
the likelihood that the marketability of the securities will be maintained
throughout the time the security is held by the Portfolio.


                                 RISK FACTORS


California Risk Factors

   
     Vanguard California Tax-Free Fund invests primarily in the obligations of
California state and various local governments, including counties, cities,
special districts, agencies and authorities. In general, the credit quality and
credit risk of any issuer's debt depend on the state and local economy, the
health of the issuer's finances, the amount of the issuer's debt, the quality
of management, and the strength of legal provisions in debt documents that
protect debt holders. Credit risk is usually lower wherever the economy is
strong, growing and diversified; financial operations are sound; and the debt
burden is reasonable.
    

     The credit risk associated with direct obligations of the State of
California and State agencies, including general obligation and revenue bonds,
lease debt, and notes, is now average. For most of the last two decades, the
State's general obligation bonds had enjoyed the highest rating by either
Moody's Investors Service, Inc. or Standard & Poor's Corporation. California's
high credit quality reflected the growth of its strong and diversified economy,
a low debt position, wealth levels higher than the national average, and a
generally sound and stable financial position. However, California's credit
quality has declined since the onset of the national recession in 1990.

     California's economy, largest among the states, is also one of the largest
in the world. The State's population, nearly 30 million in 1990, has doubled
since 1960 and constitutes over 12% of the U.S. total. Rapid growth is
continuing, with rates more than twice that of the national average during the
1980s. Personal income growth lagged behind U.S. growth in the 1980s, but per
capita income was still 10% above the national average in 1990. A growing,
young population, a strong higher education system, and excellent ports
continue to bolster California's economic prospects. Employment and income are
not concentrated in any one sector. In fact, California's economy closely
mirrors that of the U.S. One caveat to this observation concerns the defense
industry. For many years, California has led the Nation in receipt of total
direct U.S. military expenditures. However, as the State's economy expanded,
the concentration in defense has lessened. Nonetheless, a U.S. policy has
resulted in lower defense spending, parts of California, especially the Los
Angeles Region, have been adversely affected, and these trends might continue.

   
     The economy and financial operations of California are exposed to the risk
of cyclical national recessions. In a recession, credit quality can drop if
debt issuers do not maintain a balance between revenues and expenditures. This
occurred in the early 1980s when Moody's and Standard & Poor's downgraded the
State. Subsequently, State finances were restored to sound levels, and credit
ratings were upgraded. California was especially hard hit by the recent
national recession and experienced three credit-rating downgrades by each
    


                                                                             B-7
<PAGE>

of the two major rating agencies. The effects of recession were not strongly
felt in California until 1991. Led by declines in defense-related activities
and construction (especially commercial real estate), the State lost over
800,000 jobs between 1990-1993, or about 6% of non-agricultural employment. The
recession resulted in a failure by State government to realize revenue and
spending targets. The State budget was chronically imbalanced in 1991 and 1992.
State aid was reduced, spreading fiscal stress to local governments, including
schools.


   
     California has recently emerged from the depths of the recession,
recovering most of the jobs lost earlier in the decade. Job growth has been
prevalent in the high technology, entertainment, and foreign trade sectors.
Despite the recent economic expansion, both State and local governments
continue to be vulnerable to fiscal stress.


     Despite the overall strength of California credit quality, there are a
number of additional risks. The adoption by voters of revenue and expenditure
limitations, commencing with Articles XIIIA and XIIIB of the California
Constitution in the late 1970s and Articles XIIIC and XIIID in 1996, have
placed many local governments under a degree of fiscal stress which continues.
Court decisions and the adoption of subsequent propositions have softened many
of the effects of these limitations. However, it should be noted that
California voters have demonstrated a willingness to utilize the statutory
initiative process to curtail the financial operations of state and local
government, as well as to increase public debt. This willingness is a
continuing risk to debt holders.
    


     Another risk resulting from Article XIIIA concerns the security provisions
for debt repayment. Since 1986, general obligation debt issued by local
governments has required voter approval by a two-thirds majority. As a result,
most tax-backed debt now issued by California local governments is not general
obligation debt, does not have "full faith and credit" backing, and has higher
credit risk and more limited bondholder rights.


     Some risks in California apply more to local issuers than to state
government. In areas of very rapid population growth, the costs of building
public infrastructure are very high, large amounts of municipal bonds are being
sold, and debt burden is increasing. In some parts of southern California,
there is also a fear that population growth may possibly limit future economic
growth due to transportation and air pollution problems.


   
     Finally, California is subject to unique natural hazard risks. Earthquakes
and wildfires can cause localized economic harm which could limit the ability
of governments to repay debt. Cycles of drought and flooding are also concerns
insofar as they affect agricultural production, power generation, and the
supply of drinking water. In addition, drought can limit the ability of certain
public utilities to repay debt.
    


Florida Risk Factors


   
     Vanguard Florida Insured Tax-Free Fund invests primarily in the debt
obligations of Florida state government, the State's agencies and authorities,
and various local governments, including counties, cities, towns, special
districts, and authorities. In general, the credit quality and credit risk of
any issuer's debt depend on the state and local economy, the health of the
issuer's finances, the amount of the issuer's debt, the quality of management,
and the strength of legal provisions in debt documents that protect debt
holders. Credit risk is usually lower wherever the economy is strong, growing
and diversified, financial operations are sound, and the debt burden is
reasonable.
    


B-8
<PAGE>

     The average credit rating among American states for full "faith and
credit" state debt is "Aa" as determined by Moody's Investors Service, Inc. and
"AA" as determined by Standard & Poor's Corporation. Against this measure and
the criteria listed above, the credit risk associated with direct obligations
of the State of Florida and the State's agencies and authorities, including
general obligation and revenue bonds, lease debt, and notes, is comparable with
the average for U.S. states. Florida's general obligation bonds have been rated
in the AA category by both rating agencies for over two decades, during which
period the State's obligations could be characterized as providing high-grade
security with a very strong capacity for timely repayment of debt. In 1997,
Standard & Poor's upgraded the State of Florida's rating to AA+ reflecting
healthy finances and a strong economy.


     The State of Florida's economy is characterized by a large service sector,
a dependence on the tourism and construction industries, and a large retirement
population. The management of rapid growth has been the major challenge facing
state and local governments. While attracting many senior citizens, Florida
also offers a favorable business environment and growing employment
opportunities that have continued to generate working-age population
in-migration. As this growth continues, particularly within the retirement
population, the demand for both public and private services will increase,
which may strain the service sector's capacity and impede the State's budget
balancing efforts.


     During the 1980s, Florida outperformed the nation as measured by such
economic indicators as employment growth and income levels. Florida's job
creation rate in the non-agriculture sector was the highest of the eleven most
populous states. Fueling this growth in jobs were the continued boom in the
tourism industry and related service sectors and a dynamic construction and
construction-related manufacturing sector. Florida's economy did not suffer the
dislocation and restructuring of the more manufacturing-based economies of the
Midwest and the North during the 1980s and was less exposed to the decline of
the textile industry besieging much of the Southeast.


   
     The primary vulnerability of the Florida economy is exposure to the
business cycle affecting both the tourism and construction industries. Gasoline
prices and supply can impact tourism. An economic recession reached Florida in
1991 and impacted the service sector considerably, causing the State to
experience an actual job loss for the first time in decades. While Florida's
aerospace and defense contracting industries are now in decline, the State's
manufacturing economy has diversified into high-tech and electronic equipment
and has been strengthened by a growth in exports. Furthermore, construction
jobs as a percent of total jobs in the State declined during the late '80s,
reducing cyclical risk. The outlook for the Florida economy at the end of the
1990's is continued expansion fueled by population growth, a diversifying
services and manufacturing economy, and a robust tourism sector.
    


     Personal income levels in Florida are greater than the U.S. average and
continue to grow at a faster rate. These levels in Florida are also less
sensitive to economic downturns than in the U.S., as a whole, since Florida is
home to a greater concentration of senior citizens who rely on dividends,
interest, Social Security, and pension benefits, which fluctuate less with the
business cycle than does employment income.


     Debt levels in the State of Florida are moderate to high, reflecting the
tremendous capital demands associated with rapid population growth. Florida is
unusual among states in that all general obligation "full faith and credit"
debt issues of municipalities must be approved by public referendum and are,
therefore, relatively rare. Most debt instruments issued by local
municipalities and authorities have a more narrow pledge of security, such as a
sales tax stream, special assessment revenue, user fees, utility taxes, or fuel
taxes. Credit


                                                                             B-9
<PAGE>

quality of such debt instruments tends to be somewhat lower than that of
general obligation debt. The State of Florida issues general obligation debt
for a variety of purposes; however, the State constitution requires a specific
revenue stream to be pledged to State general obligation bonds as well.


     The market for Florida bonds secured by municipal leases suffered for a
period in the early 1990's due to the default of the State of Florida on a
private placement lease financing of an office building in 1989 and several
episodes of public consideration (although never carried out) by Brevard County
to not appropriate funds to meet its obligation under a tax-exempt lease
financing. More recently the Florida municipal lease market has performed well
with strong liquidity.

     The State of Florida generated steadily increasing fund balances during
the 1980s as the State experienced record growth. However, the State
experienced budget strain during the early 1990s due to an economic recession.
The State's dependence on the sales tax as a primary source of revenue
compounded the recession's impact. State officials acted quickly and
responsibly to maintain a balanced budget by revising revenue projections and
controlling spending. Such responsible fiscal management enhances overall
credit quality in the State of Florida.

     During the mid to late 1990's State finances have been particularly strong
with large surpluses and strong reserves. State officials, however, still face
tremendous capital and operating pressures due to the growth that will continue
to strain the State's narrow revenue base. Future budgets may require a wider
revenue base to meet such demands; the most likely candidate for such revenue
enhancement is a tax on consumer services. The creation of a Florida personal
income tax is a very remote possibility, since it would require an amendment to
the State's Constitution and a higher level of political support than has
currently been generated.


New Jersey Risk Factors

   
     Vanguard New Jersey Tax-Free Fund invests primarily in the obligations of
New Jersey State government and various local governments, including counties,
cities, special districts, agencies and authorities. In general, the credit
quality and credit risk of any issuer's debt depend on the state and local
economy, the health of the issuer's finances, the amount of the issuer's debt,
the quality of management, and the strength of legal provisions in debt
documents that protect debt holders. Credit risk is usually lower wherever the
economy is strong, growing and diversified; financial operations are sound; and
the debt burden is reasonable.

     The average rating among American states for full faith and credit state
debt is "Aa" and "AA" by Moody's Investors Service, Inc. and Standard & Poor's
Corporation, respectively. Against this measure and the criteria listed above,
the credit risk associated with direct obligations of the State of New Jersey
and state agencies, including general obligation and revenue bonds, and lease
debt, compares very favorably. For most of the last two decades, the State's
general obligation bonds have enjoyed the highest rating by either Moody's
Investors Service, Inc. or Standard & Poor's. In the early 1990s, however, both
Moody's and Standard & Poor's slightly downgraded the State's credit rating to
the high "AA" level due to an economy and state finances weakened by recession.
In general, New Jersey's high credit quality over time reflects the strong
growth and diversification of its economy, a moderate debt position, wealth
levels much higher than the national average, and a historically sound and
stable financial position.

     New Jersey's economy continues to gradually emerge from the depths of the
1990-92 national recession. Between 1989 and 1992, the State lost 8.7% of its
employment total or about one job in twelve. Significant job losses occurred in
the construction, manufacturing, wholesale and retail trades, and in financial
and real
    


B-10
<PAGE>

   
estate services. The only sectors to experience growth during the period were
the healthcare and government sectors. Unemployment rates exceeded the national
average and reached a high of 9.8% in July of 1992. Economic variables indicate
a slowly improving New Jersey economy, as evidenced by a decrease in the
unemployment rate since 1993. However, this progress could be mitigated by
layoffs in the pharmaceutical industry and AT&T, New Jersey's largest employer.
 
    

     The most recent cyclical weakening of the New Jersey economy follows an
unprecedented period of diversification and growth for the State in the 1980s.
Like many other northeastern and "rust-belt" states, New Jersey's economy
declined during the 1970s. This set the stage for a remarkable period of
transformation in the 1980s. The State economy changed from a
manufacturing-dominated base to an economy balanced among manufacturing, trade
and services, closely mirroring the U.S. economy. Population growth exceeded
the regional average during this time, and growth in employment and income
outpaced the U.S. average. This growth occurred not only in the developed
northeastern and Delaware River Valley areas, but also in central New Jersey
around Princeton and the Atlantic coastal region. Despite the recession of 1990
to 1992, New Jersey remains a wealthy state, and continues to be the second
wealthiest after Connecticut. Per capita state income is over a third higher
than the U.S. average.

   
     New Jersey's debt burden is moderate in relation to the State's wealth and
resources, but has increased significantly since 1991 as the State has financed
capital outlays previously funded out of current revenues and stepped up debt
issuance to stimulate a weakened economy. Tax-supported debt as measured
against income and population is close to average levels among the states. Debt
retirement is rapid even though debt service has a modest claim on State
revenues. New debt issuance is expected to be manageable.

     After a decade of sound financial operations in the 1980s, characterized
by robust increases in revenues and fund balances, New Jersey faced several
years of budgetary distress in the early 1990s. Declining tax revenues and
swelling expenditures for Medicaid, public assistance, and corrections
generated repeated budget gaps that the State was able to close only by
utilizing non-recurring revenue sources. Continued high credit quality will
depend on the resolve of State leaders and taxpayers to maintain fiscal balance
while diminishing a reliance on one-time revenue sources. Most recently an
improving State and national economy has resulted in increased revenues and
some moderation in budgeting strain. However, the significant income tax cuts
recently enacted in the State may prove to strain state finances if an economic
slowdown were to occur.

     A positive credit factor for local government in New Jersey is the strong
State oversight of local government operations. The State can and has seized
control of mismanaged jurisdictions. In general, the high level of wealth and
the strong economic base in the State have resulted in credit quality for local
government that is among the highest in the U.S. In addition, the State
guarantees the debt service of many local government bond issues. As State
finances remain under pressure, however, local governments may see levels of
state aid reduced, a development that could result in a dilution of local
credit quality. Successful tax appeals by property owners in many
municipalities have also reduced revenues for some local governments.

     Despite the strengths of New Jersey credit quality, there are risks. New
Jersey has a number of older urban centers, including Newark and Camden, that
present a continuing vulnerability with respect to economic and social
problems. The State is facing educational finance reforms which could affect
the credit quality of certain school districts as well as State financial
operations. State taxes were increased in 1990 to balance the State's budget
and then reduced in 1992 after a "taxpayer revolt" reversed the political power
balance in the State legislature. Finally, overbuilding in the residential and
commercial real estate sector has weakened property values as well as the
general health of the construction industry and related financial institutions.
 
    


                                                                            B-11
<PAGE>

New York Risk Factors

   
     Vanguard New York Tax-Free Fund invests primarily in the obligations of
New York state government, state agencies, state authorities and various local
governments, including counties, cities, towns, special districts, and
authorities. In general, the credit quality and credit risk of any issuer's
debt depend on the state and local economy, the health of the issuer's
finances, the amount of the issuer's debt, the quality of management, and the
strength of legal provisions in debt documents that protect debt holders.
Credit risk is usually lower wherever the economy is strong, growing and
diversified; financial operations are sound; and the debt burden is reasonable.
 
    

     The average rating among American states for full faith and credit state
debt is "Aa" and "AA" by Moody's Investors Service, Inc. and Standard & Poor's
Corporation, respectively. Against this measure and the criteria listed above,
the credit risk associated with direct obligations of the State of New York and
State agencies and authorities, including general obligation and revenue bonds,
"moral obligation" bonds, lease debt, appropriation debt, and notes, compares
somewhat unfavorably. During most of the last two decades, the State's general
obligation bonds have been rated just below this average by both rating
agencies. Additionally, the State's credit quality could be characterized as
more volatile than that of other states, since the State's credit rating has
been upgraded and downgraded much more often than usual. This rating has
fluctuated between "Aa" and "A" since the early 1970s. Nonetheless, during this
period the State's obligations could still be characterized as providing upper
medium grade security, with a strong capacity for timely repayment of debt.

   
     The wealth of New York State, as well as the size and diversity of its
economy, serve to limit the credit risk of its securities. New York ranks third
among the states in per capita personal income, which is 19% above the U.S.
average. During most of the 1980s, economic indicators for New York, including
income and employment growth and unemployment rates, outperformed the nation as
a whole. The engine of growth for the State in the past decade was the surge in
financial and other services, especially in New York City. Manufacturing
centers in upstate New York, which more closely parallels the Midwestern
economy, suffered during the 1970s and early 1980s. The upstate economy
continues to be characterized by cities with aging populations and aging
manufacturing plants.

     Credit risk in New York State is heightened by a large and increasing debt
burden, historically marginal financial operations, limited revenue-raising
flexibility, and the uncertainty of the future credit quality of New York City,
which comprises 40% of the State's population and economy. Combined State and
local debt per capita is about 50% above the U.S. average, and debt service
expenditures have been growing as a claim on the State and City budget. New
York's debt structure is also complicated. To circumvent voter approval, most
State debt is issued by agencies, is not backed by the State's full faith and
credit and, therefore, has lower credit ratings. In the past, the State had to
rely on short-term borrowing to meet its obligations, but this practice has
ended.

     Buoyed by rapid economic growth in the mid-1980s, the State's financial
operations generated surpluses. Beginning in 1988, however, unforeseen
consequences of federal tax reform, combined with a weakening economy, resulted
in a series of State budget deficits. New York's heavy commitment to local aid
and social welfare programs allowed expenditure growth to exceed available
revenues. This lack of budgetary discipline caused the State's credit ratings
to fall. Moreover, New York's ability to raise revenues is limited, since
combined state and local taxes are among the highest in the nation as a percent
of personal income. Recent state budgets have been balanced, and consistent
operating surpluses have been recorded although the State continues to have a
nearly $3 billion GAAP accumulated deficit. State personal income tax cuts have
been offset by strong revenue performance emanating from Wall Street and by
solid expenditure restraint.
    


B-12
<PAGE>

     New York State's future credit quality will be heavily influenced by the
future of New York City. As the City's economic boom in the 1980s lifted the
State, the severe downturn in the financial services and real estate sectors,
which are concentrated in the City, has been serving as a drag on the State's
economy. Stabilization or recovery in these areas is crucial to the economic
and fiscal health of the City and the State. Moreover, the City faces daunting
challenges in combating deteriorating infrastructure and serious social
problems of housing, health, education and public safety. So far, City
government has demonstrated an ability to keep abreast of these problems, but
the City's and the State's ability to meet these challenges will be a
continuing risk factor. Buoyed by Wall Street, the addition of 140,000 private
sector jobs over the 1994-97 period and public sector workforce attrition, the
City has posted recurring operating surpluses. The largest, $856 million, is
projected for fiscal year 1997. The City will shortly be creating a new vehicle
to access the debt markets, called the Transitional Finance Authority, as G.O.
capacity is limited due to archaic statutory issuing formulas.

     Major areas of credit strength continue to exist in localities in Long
Island, and north of New York City where affluent population bases continue to
exist.


Ohio Risk Factors

   
     Ohio Tax-Free Fund will invest most of its net assets in securities issued
by or on behalf of (or in certificates of participation in lease-purchase
obligations of) the State of Ohio, political subdivisions of the State, or
agencies or instrumentalities of the State or its political subdivisions ("Ohio
Obligations"). The Fund is therefore susceptible to general or particular
political, economic or regulatory factors that may affect issuers of Ohio
Obligations. The following information constitutes only a brief summary of some
of the many complex factors that may affect the Fund. The information does not
apply to "conduit" obligations on which the public issuer itself has no
financial responsibility. This information is derived from official statements
of certain Ohio issuers published in connection with their issuance of
securities and from other publicly available documents, and is believed to be
accurate. No independent verification has been made of any of the following
information.
    

     The timely payment of principal of and interest on Ohio Obligations has
been guaranteed by bond insurance purchased by the issuers, the Fund or other
parties. The timely payment of debt service on Ohio Obligations that are so
insured may not be subject to the factors referred to in this section of the
Prospectus.

     Ohio is the seventh most populous state. Its 1990 Census count of
10,847,000 indicates a 0.5% population increase from 1980.

     While diversifying more into the service and other non-manufacturing
areas, the Ohio economy continues to rely in part on durable goods
manufacturing largely concentrated in motor vehicles and equipment, steel,
rubber products and household appliances. As a result, general economic
activity, as in many other industrially-developed states, tends to be more
cyclical than in some other states and in the nation as a whole. Agriculture is
an important segment of the economy, with over half the State's area devoted to
farming and approximately 15% of total employment in agribusiness. The State's
economy has also benefited by improved manufacturing productivity and a strong
export position which helped shield the State's economy from domestic recession
in the early 1990s.

   
     There can be no assurance that future national, regional or statewide
economic difficulties, and the resulting impact on State or local government
finances generally, will not adversely affect the market value of Ohio
Obligations held in the Fund or the ability of particular obligors to make
timely payments of debt service on (or lease payments relating to) those
Obligations.
    


                                                                            B-13
<PAGE>

   
     Ohio's debt burden is moderate, and the State and most local governments
observe prudent debt management practices. The State government maintained
positive year-end balances in its general revenue account during the 1980s,
achieved through timely revisions in tax and spending plans. During the
economic recovery of the mid-1980s, the State accumulated sizable fund balances
in its general revenue fund and maintained a healthy budget stabilization (or
"rainy day") fund. This strong financial position provided the State with far
more flexibility than most states to weather the revenue shortfalls and
increased human services expenditures generated by the most recent recession.
The State's finances remain sound and poised to generate enhanced balances as
the national economy affects a sustained recovery from the recession of the
early 1990s. Current cash and fund balance levels are exceptionally strong
today. Cash balances at 6/30/97 were $1.4 billion.
    

     The State operates on the basis of a fiscal biennium for its
appropriations and expenditures, and is precluded by law from ending its July 1
to June 30 fiscal year ("FY") or fiscal biennium in a deficit position. Most
State operations are financed through the General Revenue Fund ("GRF"), for
which personal income and sales-use taxes are the major sources. Growth and
depletion of GRF ending fund balances show a consistent pattern related to
national economic conditions, with the ending FY balance reduced during less
favorable and increased during more favorable economic periods. The State has
well-established procedures for, and has timely taken, necessary actions to
ensure resource/expenditure balances during less favorable economic periods.
These procedures include general and selected reductions in appropriations
spending.

   
     The Ohio Constitution also authorizes the issuance of State obligations
for certain purposes, the owners of which do not have the right to have excises
or taxes levied to pay debt service. Such State obligations are generally
secured by biennial appropriation lease agreements with the State.

     In general, payment obligations under lease-purchase agreements of Ohio
public agencies (in which certificates of participation may be issued) are
limited in duration to the agencies' fiscal periods, and are dependent upon
appropriations being made available for the subsequent fiscal period.
Additionally, State and local agencies issue revenue obligations that are
payable from revenues from or relating to certain facilities (but not from
taxes). By judicial interpretation, these obligations are not "debt" within
constitutional provisions.
    

     Local school districts in Ohio receive a major portion (on a statewide
basis, recent approximately 46%) of their operating moneys from State
subsidies, but are dependent on local property taxes, and in 98 districts from
voter-authorized income taxes, for significant portions of their budgets.
Litigation, similar to that in other states, is pending questioning the
constitutionality of Ohio's system of school funding. A small number of the
State's 612 local school districts have in any year required special assistance
to avoid year-end deficits. A current program provides for school district cash
need borrowing directly from commercial lenders, with diversion of State
subsidy distributions to repayment if needed.

     Ohio's 943 incorporated cities and villages rely primarily on property and
municipal income taxes for their operations, and, with other local governments,
receive local government support and property tax relief moneys distributed by
the State. For those few municipalities that on occasion have faced significant
financial problems, there are statutory procedures for a joint state/local
commission to monitor the municipality's fiscal affairs and for development of
a financial plan to eliminate deficits and cure any defaults. Since inception
in 1979, these procedures have been applied to 23 cities and villages; for 18
of them the fiscal situation was resolved and the procedures terminated.
   
     At present the State itself does not levy ad valorem taxes on real or
tangible personal property. Those taxes are levied by political subdivisions
and other local taxing districts. The Ohio Constitution has since
    


B-14
<PAGE>

1934 limited the amount of the aggregate levy (including a levy for un-voted
general obligations) of property taxes by all overlapping subdivisions, without
a vote of the electors or a municipal charter provision, to 1% of true value in
money, and statutes limit the amount of that aggregate levy to 10 mills per $1
of assessed valuation (commonly referred to as the "ten-mill limitation").
Voted general obligations of subdivisions are payable from property taxes that
are unlimited as to amount or rate.


Pennsylvania Risk Factors

     Vanguard Pennsylvania Tax-Free Fund invests primarily in the obligations
of Pennsylvania state government, state agencies and various local governments,
including counties, cities, townships, special districts, and authorities. In
general, the credit quality and credit risk of any issuer's debt depend on the
state and local economy, the health of the issuer's finances, the amount of the
issuer's debt, the quality of management, and the strength of legal provisions
in debt documents that protect debt holders. Credit risk is usually lower
wherever the economy is strong, growing and diversified; financial operations
are sound; and the debt burden is reasonable.

     The average rating among American states for full faith and credit state
debt is "Aa" and "AA" by Moody's Investors Service, Inc. and Standard & Poor's
Corporation, respectively. Against this measure and the criteria listed above,
the credit risk associated with direct obligations of Pennsylvania and state
agencies, including general obligation and revenue bonds, lease debt, and
notes, compares slightly unfavorably. During most of the last two decades,
Pennsylvania's general obligation bonds have been rated just below this average
by both rating agencies. Nonetheless, during this period Pennsylvania's
obligations could still be characterized as providing upper medium grade
security, with a strong capacity for timely repayment of debt. Recently, the
State's rating was upgraded by Moody's Investors Service and the State now has
ratings of "Aa3"/"AA-".

     Factors contributing positively to credit quality in Pennsylvania include
a favorable debt structure, a diversifying economic base, and conservatively
managed financial operations on the part of state government. Tax-supported
debt is only slightly above average state levels on a per capita basis and as a
percent of state personal income. Over the past two decades, this debt burden
has improved considerably in Pennsylvania, and debt continues to be rapidly
retired, while state borrowing plans are modest.

     In the past twenty years, Pennsylvania's economy has undergone a healthy,
though traumatic, transformation. Manufacturing employment has declined from
35% of total state employment in 1970 to 17.9% of total employment in 1995,
only slightly above the U.S. average. Growth in service sector jobs offset the
loss of manufacturing jobs, and Pennsylvania's economy is now much more closely
aligned with the national economy. In the future, economic booms and busts
should be milder than in the past and more closely follow national averages.
The positive change in the economy has not been without costs. Growth levels in
employment, population and personal income lagged behind U.S. averages in the
1980s. During this period, per capita personal income slipped to about the U.S.
average. Many communities dominated by a single industry were particularly
hurt, and recent growth in the state economy has bypassed much of the state
outside of the immediate Philadelphia and Pittsburgh metropolitan areas. As a
result, the credit quality of these areas is often marginal.

     During the 1991-1992 national economic recession, Pennsylvania fared a bit
worse than the U.S. average, but better than many neighboring Northeastern and
Mid-Atlantic states. Led by continuing declines in manufacturing, employment
decreased about 4%, or double the U.S. loss rate. Pennsylvania has subsequently
experienced economic recovery in line with the U.S. More recently, the State's
economy has shown some growth with current unemployment rates approximating
those of the nation.


                                                                            B-15
<PAGE>

   
     Fiscally, Pennsylvania has historically maintained balanced budgets, a
result of sound and conservative budgeting policies. During the period of
economic growth in the late 1980s, operating surpluses were recorded, and a
"rainy day" fund was established. That recent recession tested these policies,
but the Commonwealth emerged from the recession with its finances and credit
quality intact. In 1990 and 1991, as the recession worsened, budget balances
were eliminated, and the Commonwealth ended fiscal 1991 in a deficit position.
However, a combination of expenditure restraint and broad-based tax increases
enabled the Commonwealth to end 1992 with a surplus. Finances are now stable
and healthy, and the Commonwealth has a comfortable accumulated surplus. Due to
this improvement, cash flow borrowing has been substantially reduced. Tax
revenue is coming in above forecasted levels.
    

     The risk factors in Pennsylvania's credit quality may be summarized as
slow growth, an aging population, average income, and a continuing challenge to
maintain balanced budgets. In addition, a number of local governments in the
Commonwealth, most notably Philadelphia, face continuing fiscal stress, and
were unable to address serious economic, social and healthcare problems within
revenue constraints. Philadelphia's credit prospects have recently
significantly improved but remain a challenge to the credit quality of
Pennsylvania, longer term.


                   FLORIDA INTANGIBLE PERSONAL PROPERTY TAX


   
     Although Florida does not have a state personal income tax, it does impose
an intangible personal property tax on certain financial assets, including
mutual fund shares. The most common examples of personal property subject to
the tax are shares of stock issued by corporations, bonds issued by
corporations or state, county or municipal governments outside the State of
Florida, and shares of ownership in mutual funds. Unlike most state and local
taxes which are assessed on ordinary income and capital gains derived from
mutual fund shares, the Florida intangible tax is based on the net asset value
of these shares. Under Florida law, shares of a mutual fund will be exempt from
the intangibles tax to the extent that, on the annual assessment date (January
1), its assets are solely invested in exempt Florida securities, exempt U.S.
government securities, or other exempt securities. If, on the annual assessment
date, Vanguard Florida Insured Tax-Free Fund's assets are invested in both
exempt and non-exempt securities, only that portion of a share's net asset
value represented by U.S. government securities (including qualifying
obligations of U.S. territories and possessions) will be exempt from the
intangibles tax. Under this rule, shares of the Vanguard Florida Insured
Tax-Free Fund are expected to be exempt from the Florida intangible personal
property tax.
    


                            YIELD AND TOTAL RETURN


California Tax-Free Fund


   
     The yields of the California Insured Long-Term Portfolio, the California
Insured Intermediate-Term Portfolio and the California Money Market Portfolio
for the 30-day period ending November 30, 1997 were +4.81%, +4.37%, and +3.55%,
respectively.


     The average annual total returns of the California Insured Long-Term
Portfolio for the one-, five-, and ten-year periods ended November 30, 1997,
were +6.52%, +7.50% and +8.83%, respectively. The average annual total returns
of the California Insured Intermediate-Term Portfolio for the one-year period
and the period from inception (March 4, 1994) to November 30, 1997 were +5.91%
and +6.84%, respectively. The average annual total returns of the California
Money Market Portfolio for the one-, five- and ten-year periods
    


B-16
<PAGE>

   
ended November 30, 1997, were +3.41%, +3.08% and +3.96%, respectively. Total
return is computed by finding the average compounded rates of return over the
one-year period set forth above that would equate an initial amount invested at
the beginning of the period to the ending redeemable value of the investment.
    


Florida Insured Tax-Free Fund


     The yield of the Florida Insured Tax-Free Fund for the 30-day period ended
November 30, 1997 was +4.69%.

     The average annual total returns of Florida Insured Tax-Free Fund for the
one- and five-year periods ended November 30, 1997 were +6.54% and +7.52%,
respectively. The average annual total return for the Fund since its inception
on September 1, 1992 was +7.73%.


New Jersey Tax-Free Fund


   
     The yield of the New Jersey Insured Long-Term Portfolio and the New Jersey
Money Market Portfolio for the 30-day period ended November 30, 1997 was +4.73%
and +3.51%, respectively.
    

     The average annual total returns of the New Jersey Insured Long-Term
Portfolio for the one- and five-year periods ended November 30, 1997, and since
its inception on February 3, 1988, were +6.40%, +7.10% and +8.19%,
respectively. The average annual total return of the New Jersey Money Market
Portfolio for the one- and five-year periods ended November 30, 1997, and since
its inception on February 3, 1988, were +3.32%, +2.99% and +3.95%,
respectively. Total return is computed by finding the average compounded rates
of return over the period set forth above that would equate an initial amount
invested at the beginning of the period to the ending redeemable value of the
investment.


New York Tax-Free Fund


   
     The yield of the New York Insured Long-Term Portfolio and the New York
Money Market Portfolio for the 30-day period ended November 30, 1997 was +4.73%
and +0.8%, respectively.
    

     The average annual total returns of the New York Insured Long-Term
Portfolio for the one-, five-, and ten-year periods ended November 30, 1997
were +6.36%, +7.28% and +8.76%, respectively. The average annual total return
of the New York Money Market Portfolio since its inception on September 3, 1997
was +0.8%. Total return is computed by finding the average compounded rates of
return over the period set forth above that would equate an initial amount
invested at the beginning of the period to the ending redeemable value of the
investment.


Ohio Tax-Free Fund


   
     The yield of the Ohio Insured Long-Term Portfolio and the Ohio Money
Market Portfolio for the 30-day period ended November 30, 1997 was +4.70% and
+3.64%, respectively.
    


     The average annual total returns of the Ohio Insured Long-Term Portfolio
for the one- and five-year periods ended November 30, 1997, and since its
inception on June 18, 1990, were +6.30%, +7.11% and +8.30%, respectively. The
average annual total returns of the Ohio Money Market Portfolio for the one-
and five-year periods ended November 30, 1997, and since its inception on June
18, 1990, were +3.49%, +3.13% and +3.48%, respectively.


                                                                            B-17
<PAGE>

Pennsylvania Tax-Free Fund


   
     The yield of the Pennsylvania Insured Long-Term Portfolio and the
Pennsylvania Money Market Portfolio for the 30-day period ended November 30,
1997 was +4.77% and +3.67%, respectively. Yield is calculated daily and premium
and discounts on asset-backed securities are not amortized.
    


     The average annual total returns of the Pennsylvania Insured Long-Term
Portfolio for the one-, five-, and ten-year periods ended November 30, 1997
were +6.21%, +7.09% and +8.80%, respectively. The average total returns of the
Pennsylvania Money Market Portfolio for the one- and five-year periods ended
November 30, 1997, and since its inception on June 13, 1988, were +3.49%,
+3.10% and +3.99%, respectively. Total return is computed by determining the
average compounded rates of return over the period set forth above that would
equate an initial amount invested at the beginning of the period to the ending
redeemable value of the investment.


                             CALCULATION OF YIELD


     The current yield of the Money Market Portfolio of each Fund is calculated
daily on a base period return of a hypothetical account having a beginning
balance of one share for a particular period of time (generally 7 days). The
return is determined by dividing the net change (exclusive of any capital
changes) in such account by its average net asset value for the period, and
then multiplying it by 365/7 to get annualized current yield. The calculation
of net change reflects the value of additional shares purchased with the
dividends by the Portfolio, including dividends on both the original share and
on such additional shares. An effective yield, which reflects the effects of
compounding and represents an annualization of the current yield with all
dividends reinvested, may also be calculated for the Portfolio by addition 1 to
the net change, raising the sum to the 365/7 power, and subtracting 1 from the
result.


     Set forth below is an example, for purposes of illustration only, of the
current and effective yield calculations for the Money Market Portfolio of each
applicable Fund for the 7-day base period ended November 30, 1997:


California Tax-Free Fund




   
                                                       Money Market Portfolio
                                                      -----------------------
                                                              11/30/97
                                                      -----------------------
Value of account at beginning of period ..........          $ 1.00000
Value of same account at end of period* ..........          $ 1.00068
                                                            ---------
Net Change in account value ......................          $  .00068
Annualized Current Net Yield
 (Net Change x 365/7) / average net asset value ..               3.55%
Effective Yield
 [(Net Change) + 1]365/7 -- 1 ....................               3.61%
Average Weighted Maturity of Investments .........            65 days
    

* Exclusive of any capital changes.

B-18
<PAGE>

New Jersey Tax-Free




   
                                                        Money Market Portfolio
                                                       -----------------------
                                                               11/30/97
                                                       -----------------------
Value of account at beginning of period ............          $ 1.00000
Value of same account at end of period* ............            1.00067
                                                              ---------
Net Change in account value ........................          $  .00067
Annualized Current Net Yield
 (Net Change x 365/7) /- average net asset value ...               3.51%
Effective Yield
 [(Net Change) + 1]365/7 -- 1 ......................               3.56%
Average Weighted Maturity of Investments ...........            56 days
    

* Exclusive of any capital changes


New York Tax-Free Fund




   
                                                        Money Market Portfolio
                                                       -----------------------
                                                               11/30/97
                                                       -----------------------
Value of account at beginning of period .............         $ 1.00000
Value of same account at end of period* .............         $ 1.00069
                                                              ---------
Net Change in account value .........................         $  .00069
Annualized Current Net Yield
 (Net Change x 365/7) / average net asset value .....              3.63%
Effective Yield
 [(Net Change) + 1]365/7 -- 1 .......................              3.67%
Average Weighted Maturity of Investments ............           53 days
    

* Exclusive of any capital changes.


Ohio Tax-Free Fund



   
                                                       Money Market Portfolio
                                                      -----------------------
                                                              11/30/97
                                                      -----------------------
Value of account at beginning of period .............        $ 1.00000
Value of same account at end of period* .............        $ 1.00070
                                                             ---------
Net Change in account value .........................        $  .00070
Annualized Current Net Yield
 (Net Change x 365/7) / average net asset value .....             3.64%
Effective Yield
  [(Net Change) + 1]365/7) -- 1 .....................             3.70%
Average Weighted Maturity of Investments ............          60 days
    

* Exclusive of any capital changes.

                                                                            B-19
<PAGE>

Pennsylvania Tax-Free Fund



   
                                                      Money Market Portfolio
                                                     -----------------------
                                                             11/30/97
                                                     -----------------------
Value of account at beginning of period ............        $ 1.00000
Value of same account at end of period* ............        $ 1.00070
                                                            ---------
Net Change in account value ........................        $  .00070
Annualized Current Net Yield
 (Net Change x 365/7) / average net asset value ....             3.67%
Effective Yield
 [(Net Change) + 1]365/7 -- 1 ......................             3.73%
Average Weighted Maturity of Investments ...........          43 days
    

* Exclusive of any capital changes.

   
     Each Money Market Portfolio seeks to maintain, but does not guarantee, a
constant net asset value of $1.00 per share. The yield of the Portfolio will
fluctuate. Although the Money Market Portfolios invest in high-quality
instruments, the shares of the Portfolios are not insured or guaranteed by the
U.S. Government. Each Fund has obtained private insurance that partially
protects its Money Market Portfolio against default of principal or interest
payments on the instruments it holds, and against bankruptcy by issuers and
credit enhances of these instruments. Treasury and other U.S. Government
securities held by the Portfolios are excluded from this coverage. The
annualization of a week's dividend is not a representation by the Portfolio as
to what an investment in the Portfolio will actually yield in the future.
Actual yields will depend on such variables as investment quality, average
maturity, the type of instruments the Portfolio invests in, changes in interest
rates on instruments, changes in the expenses of the Fund and other factors.
Yields are one basis investors may use to analyze the Portfolios of the Fund,
and other investment vehicles; however, yields of other investment vehicles may
not be comparable because of the factors set forth in the preceding sentence,
differences in the time periods compared, and differences in the methods used
in valuing portfolio instruments, computing net asset value and calculating
yield.
    
 

B-20
<PAGE>

                             PERFORMANCE MEASURES

     Vanguard may use reprinted material discussing The Vanguard Group, Inc. or
any of the member funds of The Vanguard Group of Investment Companies.

     The Fund may use one or more of the following unmanaged indexes for
comparative performance purposes.

Standard and Poor's 500 Composite Stock Price Index--is a well diversified list
of 500 companies representing the U.S. Stock Market.

Standard & Poor's MidCap 400 Index--is composed of 400 medium sized domestic
stocks.

   
Standard & Poor's/SmallCap 600/BARRA Value Index--contains stocks of the S&P
SmallCap 600 Index which have a lower than average price-to-book ratio.

Standard & Poor's/SmallCap 600/BARRA Growth Index--contains stocks of the S&P
SmallCap 600 Index which have a higher than average price-to-book ratio.
    

Russell 1000 Value Index--consists of the stocks in the Russell 1000 Index
(comprising the 1,000 largest U.S.-based companies measured by total market
capitalization) with the lowest price-to-book ratios, comprising 50% of the
market capitalization of the Russell 1000.

Wilshire 5000 Equity Index--consists of more than 7,000 common equity
securities, covering all stocks in the U.S. for which daily pricing is
available.

Wilshire 4500 Equity Index--consists of all stocks in the Wilshire 5000 except
for the 500 stocks in the Standard and Poor's 500 Index.

Russell 3000 Stock Index--a diversified portfolio of approximately 3,000 common
stocks accounting for over 90% of the market value of publicly traded stocks in
the U.S.

Russell 2000 Stock Index--a subset of approximately 2,000 of the smallest
stocks contained in the Russell 3000; a widely-used benchmark for small
capitalization common stocks.

Morgan Stanley Capital International EAFE Index--is an arithmetic, market
value-weighted average of the performance of over 900 securities listed on the
stock exchanges of countries in Europe, Australia and the Far East.

Goldman Sachs 100 Convertible Bond Index--currently includes 71 bonds and 29
preferreds. The original list of names was generated by screening for
convertible issues of $100 million or greater in market capitalization. The
index is priced monthly.

Salomon Brothers GNMA Index--includes pools of mortgages originated by private
lenders and guaranteed by the mortgage pools of the Government National
Mortgage Association.

Salomon Brothers High-Grade Corporate Bond Index--consists of publicly issued,
non-convertible corporate bonds rated Aa or Aaa. It is a value-weighted, total
return index, including approximately 800 issues with maturities of 12 years or
greater.

Salomon Brothers Broad Investment-Grade Bond Index--is a market-weighted index
that contains over 4,800 individually priced investment-grade corporate bonds
rated BBB or better, U.S. Treasury/agency issues and mortgage pass-through
securities.


                                                                            B-21
<PAGE>

Lehman Long-Term Treasury Bond Index--is composed of all bonds covered by the
Shearson Lehman Hutton Treasury Bond Index with maturities of 10 years or
greater.


Merrill Lynch Corporate & Government Bond Index--consists of over 4,500 U.S.
Treasury, Agency and investment grade corporate bonds.


Lehman Corporate (Baa) Bond Index--all publicly offered fixed-rate,
non-convertible domestic corporate bonds rated Baa by Moody's, with a maturity
longer than 1 year and with more than $25 million outstanding. This index
includes over 1,000 issues.


Lehman Brothers Long-Term Corporate Bond Index--is a subset of the Lehman
Corporate Bond Index covering all corporate, publicly issued, fixed rate,
non-convertible U.S. debt issues rated at least Baa, with at least $50 million
principal outstanding and maturity greater than 10 years.


Bond Buyer Municipal Bond Index--is a yield index on current coupon high-grade
general obligation municipal bonds.


Standard & Poor's Preferred Index--is a yield index based upon the average
yield of four high-grade, non-callable preferred stock issues.


NASDAQ Industrial Index--is composed of more than 3,000 industrial issues. It
is a value-weighted index calculated on price change only and does not include
income.


Composite Index--70% Standard & Poor's 500 Index and 30% NASDAQ Industrial
Index.


Composite Index--65% Standard & Poor's 500 index and 35% Lehman Long-Term
Corporate AA or Better Bond Index.


Composite Index--65% Lehman Long-Term Corporate AA or Better Bond Index and a
35% weighting in a blended equity composite (75% Standard & Poor's/BARRA Value
Index, 12.5 % Standard & Poor's Utilities Index and 12.5% Standard & Poor's
Telephone Index).


Lehman Long-Term Corporate AA or Better Bond Index--consists of all publicly
issued, fixed rate, non-convertible investment grade, dollar-denominated,
SEC-registered corporate debt rated AA or AAA.


Lehman Brothers Aggregate Bond Index--is a market-weighted index that contains
individually priced U.S. Treasury, agency, corporate, and mortgage pass-through
securities corporate rated BBB- or better. The Index has a market value of over
$4 trillion.


Lehman Brothers Mutual Fund Short (1-5) Government/Corporate Index--is a
market-weighted index that contains individually priced U.S. Treasury, agency,
and corporate investment grade bonds rated BBB- or better with maturities
between 1 and 5 years. The index has a market value of over $1.6 trillion.


Lehman Brothers Mutual Fund Intermediate (5-10) Government/Corporate Index-- is
a market-weighted index that contains individually priced U.S. Treasury,
agency, and corporate securities rated BBB- or better with maturities between 5
and 10 years. The index has a market value of over $700 billion.


Lehman Brothers Long (10+) Government/Corporate Index--is a market weighted
index that contains individually priced U.S. Treasury, agency, and corporate
securities rated BBB- or better with maturities greater than 10 years. The
index has a market value of over $900 billion.


B-22
<PAGE>

Lipper Small Company Growth Fund Average--the average performance of small
company growth funds as defined by Lipper Analytical Services, Inc. Lipper
defines a small company growth fund as a fund that by prospectus or portfolio
practice, limits its investments to companies on the basis of the size of the
company. From time to time, Vanguard may advertise using the average
performance and/or the average expense ratio of the small company growth funds.
(This fund category was first established in 1982. For years prior to 1982, the
results of the Lipper Small Company Growth category were estimated using the
returns of the Funds that constituted the Group at its inception.)

Lipper Balanced Fund Average--an industry benchmark of average balanced funds
with similar investment objectives and policies, as measured by Lipper
Analytical Services, Inc.

Lipper Non-Government Money Market Fund Average--an industry benchmark of
average non-government money market funds with similar investment objectives
and policies, as measured by Lipper Analytical Services, Inc.

Lipper Government Money Market Fund Average--an industry benchmark of average
government money market funds with similar investment objectives and policies,
as measured by Lipper Analytical Services, Inc.

Lipper General Equity Fund Average--an industry benchmark of average general
equity funds with similar investment objectives and policies, as measured by
Lipper Analytical Services, Inc.

Lipper Fixed Income Fund Average--an industry benchmark of average fixed income
funds with similar investment objectives and policies, as measured by Lipper
Analytical Services, Inc.
 

                                                                            B-23
<PAGE>

                             INVESTMENT MANAGEMENT

     The Fund receives all investment advisory services on an "internalized,"
at-cost basis from an experienced investment management staff employed directly
by The Vanguard Group, Inc. ("Vanguard"), a subsidiary jointly owned by the
Fund and the other Funds in The Vanguard Group of Investment Companies. The
investment management staff is supervised by the Senior Officers of the Fund.

     The investment management staff is responsible for: maintaining the
specified standards; making changes in specific issues in light of changes in
the fundamental basis for purchasing such securities; and adjusting the Fund to
meet cash inflow (or outflow), which reflects net purchases and exchanges of
shares by investors (or net redemptions of shares) and reinvestment of the
Fund's income.

   
     A change in securities held by the Fund is known as "portfolio turnover"
and may involve the payment by the Fund of dealer mark-ups, underwriting
commissions and other transaction costs on the sales of securities as well as
on the reinvestment of the proceeds in other securities. The annual portfolio
turnover rate for each of the Fund's Portfolios is set forth under the heading
"Financial Highlights" in the Fund's Prospectus. The portfolio turnover rate is
not a limiting factor when management deems it desirable to sell or purchase
securities. It is impossible to predict whether or not the portfolio turnover
rate in future years will vary significantly from the rates in recent years.
    


                            PORTFOLIO TRANSACTIONS


How Transactions Are Effected

     The types of securities in which the Portfolios invest are generally
purchased and sold through principal transactions, meaning that the Portfolios
normally purchase securities directly from the issuer or a primary market-maker
acting as principal for the securities on a net basis. Brokerage commissions
are not paid on these transactions, although the purchase price for securities
usually includes an undisclosed compensation. Purchases from underwriters of
securities typically include a commission or concession paid by the issuer to
the underwriter, and purchases from dealers serving as market makers typically
include a dealer's mark-up (i.e., a spread between the bid and the asked
prices). During the fiscal years ended November 30, 1995, 1996 and 1997, the
Fund did not pay any brokerage commissions.


How Brokers and Dealers are Selected

     Vanguard's Fixed Income Group chooses brokers or dealers to handle the
purchase and sale of the Portfolios' securities, and is responsible for getting
the best available price and most favorable execution for all transactions.
When the Portfolios purchase a newly issued security at a fixed price, the
Group may designate certain members of the underwriting syndicate to receive
compensation associated with that transaction. Certain dealers have agreed to
rebate a portion of such compensation directly to the Portfolios to offset
their management expenses. The Group is required to seek best execution of all
transactions and is not authorized to pay a brokerage commission in excess of
that which another broker might have charged for effecting the same transaction
solely on account of the receipt of research or other services.


How the Reasonableness of Brokerage Commissions is Evaluated

     As previously explained, the types of securities that the Fund purchases
do not normally involve the payment of brokerage commissions. If any brokerage
commissions are paid, however, the Fixed Income


B-24
<PAGE>

Group will evaluate their reasonableness by considering: (a) historical
commission rates; (b) rates which other institutional investors are paying,
based upon publicly available information; (c) rates quoted by brokers and
dealers; (d) the size of a particular transaction, in terms of the number of
shares, dollar amount, and number of clients involved; (e) the complexity of a
particular transaction in terms of both execution and settlement; (f) the level
and type of business done with a particular firm over a period of time; and (g)
the extent to which the broker or dealer has capital at risk in the
transaction.


                              PURCHASE OF SHARES


     The Fund reserves the right in its sole discretion (i) to suspend the
offering of its shares, (ii) to reject purchase orders when in the judgment of
management such rejection is in the best interest of the Fund, and (iii) to
reduce or waive the minimum investment for or any other restrictions on initial
and subsequent investments under circumstances where certain economies can be
achieved in sales of the Fund's shares.

     Stock Certificates. Your purchase will be made in full and fractional
shares of the Fund calculated to three decimal places. Shares are normally held
on deposit for shareholders by the Fund, which will send to shareholders a
statement of shares owned at the time of each transaction. This saves the
shareholders the trouble of safekeeping the certificates and saves the Fund the
cost of issuing certificates. Share certificates for the California Insured
Intermediate-Term Portfolio, and the Insured Long-Term Portfolios of each Fund
are available upon written request at no additional cost to shareholders. No
certificates will be issued for fractional shares of these Portfolios, for any
shares of the Money Market Portfolios, or for shares of the Florida Insured
Tax-Free Fund.


                             REDEMPTION OF SHARES


     The Fund may suspend redemption privileges or postpone the date of payment
(i) during any period that the New York Stock Exchange is closed, or trading on
the Exchange is restricted as determined by the Securities and Exchange
Commission (the "Commission"), (ii) during any period when an emergency exists
as defined by the rules of the Commission as a result of which it is not
reasonably practicable for the Fund to dispose of securities owned by it, or
fairly to determine the value of its assets, and (iii) for such other periods
as the Commission may permit.


     If the Board of Trustees determines that it would be detrimental to the
best interests of the remaining shareholders of the Fund to make payment wholly
or partly in cash, the Fund may pay the redemption price in whole or in part by
a distribution in kind of securities held by the Fund in lieu of cash in
conformity with applicable rules of the Commission. Investors may incur
brokerage charges on the sale of such securities so received in payment of
redemptions.


     No charge is made by the Fund for redemptions except for wire redemptions
of under $5,000 which may be charged a maximum fee of $5.00. Any redemption may
be more or less than the shareholder's cost depending on the market value of
the securities held by the Fund.


     Signature Guarantees. To protect your account, the Fund, and Vanguard from
fraud, signature guarantees are required for certain redemptions. Signature
guarantees enable the Fund to verify the identity of the person who has
authorized a redemption from your account. Signature guarantees are required in
connection with: (1) all redemptions, regardless of the amount involved, when
the proceeds are to be paid to someone other than the registered owners; and
(2) share transfer requests.


                                                                            B-25
<PAGE>

     A signature guarantee may be obtained from banks, brokers and any other
financial institution that Vanguard deems acceptable.

     The signature guarantees must appear either: (1) on the written request
for redemption, (2) on a separate instrument for assignment ("stock power")
which should specify the total number of shares to be redeemed, or (3) on all
stock certificates tendered for redemption and, if shares held by the Fund are
also being redeemed, on the letter or stock power.


                                  SHARE PRICE


     Each Portfolio's share price, or "net asset value" per share, is
calculated by dividing the total assets of the Portfolio, less all liabilities,
by the total number of shares outstanding. The net asset value is determined as
of the close of the New York Stock Exchange, (the "Exchange"), generally 4:00
p.m. Eastern time, on each day that the Exchange is open for trading.

     Short term instruments (those with remaining maturities of 60 days or
less) may be valued at cost, plus or minus any amortized discount or premium,
which approximates market value.

     Bonds and other fixed income securities may be valued on the basis of
prices provided by a pricing service when such prices are believed to reflect
the fair market value of such securities. The prices provided by a pricing
service may be determined without regard to bid or last sale prices of each
security, but take into account institutional-size transactions in similar
groups of securities as well as any developments related to specific
securities.

     Other assets and securities for which no quotations are readily available
or which are restricted as to sale (or resale) are valued by such methods as
the Board of Directors deems in good faith to reflect fair value.

   
     It is the policy of each Money Market Portfolio to attempt to maintain a
net asset value of $1.00 per share for sales and redemptions. The instruments
held by each Money Market Portfolio are valued on the basis of amortized cost,
which does not take into account unrealized capital gains or losses. This
involves valuing an instrument at its cost and thereafter assuming a constant
amortization to maturity of any discount or premium, regardless of the impact
of fluctuating interest rates on the market value of the instrument. While this
method provides certainty in valuation, it may result in periods during which
value, as determined by amortized cost, is higher or lower than the price which
each Money Market Portfolio would receive it if sold the instrument.
    

     The use of amortized cost and the maintenance of each Money Market
Portfolio's net asset value at $1.00 is based on its election to operate under
Rule 2a-7 under the Investment Company Act of 1940. As a condition of operating
under that rule, each Money Market Portfolio must maintain a dollar-weighted
average portfolio maturity of 90 days or less, purchase only instruments having
remaining maturities of 397 days or less, and invest only in securities that
are determined by methods approved by the Trustees to present minimal credit
risks and that are of high quality as determined by the requisite rating
services, or in the case of an instrument not so rated, determined by methods
approved by the Trustees to be of comparable quality. The Trustees have also
agreed to establish procedures reasonably designed, taking into account current
market conditions and each Money Market Portfolio's investment objective, to
stabilize the net asset value per share as computed for purposes of sales and
redemptions at $1.00.

     The share price for each Portfolio can be found daily in the mutual fund
listings of most major newspapers under the heading of Vanguard Funds.


B-26
<PAGE>

   
                            MANAGEMENT OF THE FUND
    


OFFICERS AND TRUSTEES

     The Fund's Officers, under the supervision of the Board of Trustees,
manage the day-to-day operations of the Fund. The Trustees set broad policies
for the Fund and choose its Officers. A list of the Trustees and Officers of
the Fund and a brief statement of their present positions and principal
occupations during the past five years is set forth below. As of November 30,
1997, the Trustees owned less than 1% of the Fund's outstanding shares. The
mailing address of the Fund's Trustees and Officers is Post Office Box 876,
Valley Forge, PA 19482.
 

JOHN C. BOGLE, (DOB: 5/8/1929) Senior Chairman and Trustee*
   Senior Chairman and Director of The Vanguard Group, Inc., and of each of
   the investment companies in The Vanguard Group; Director of The Mead
   Corporation, General Accident Insurance, and Chris-Craft Industries, Inc.

JOHN J. BRENNAN, (DOB: 7/29/1954) Chairman, Chief Executive Officer & Trustee*
   Chairman, Chief Executive Officer and Director of The Vanguard Group, Inc.,
   and of each of the investment companies in The Vanguard Group.

ROBERT E. CAWTHORN, (DOB: 9/28/1935) Trustee
   Chairman Emeritus and Director of Rhone-Poulenc Rorer, Inc.; Managing
   Director of Global Health Care Partners/DLJ Merchant Banking Partners;
   Director of Sun Company, Inc., and Westinghouse Electric Corporation.

BARBARA BARNES HAUPTFUHRER, (DOB: 10/11/1928) Trustee
   Director of The Great Atlantic and Pacific Tea Company, IKON Office
   Solutions, Inc., Raytheon Company, Knight-Ridder, Inc., Massachusetts
   Mutual Life Insurance Co., and Ladies Professional Golf Association; and
   Trustee Emerita of Wellesley College.

BURTON G. MALKIEL, (DOB: 8/28/1932) Trustee
   Chemical Bank Chairman's Professor of Economics, Princeton University;
   Director of Prudential Insurance Co. of America, Amdahl Corporation, Baker
   Fentress & Co., The Jeffrey Co., and Southern New England
   Telecommunications Company.

ALFRED M. RANKIN, (DOB: 10/8/1941) Trustee
   Chairman, President, Chief Executive Officer, and Director of NACCO
   Industries, Inc.; Director of The BF Goodrich Company, and The Standard
   Products Company.

JOHN C. SAWHILL, (DOB: 6/12/1936) Trustee
   President and Chief Executive Officer of The Nature Conservancy; formerly,
   Director and Senior Partner of McKinsey & Co., President of New York
   University; Director of Pacific Gas and Electric Company, Procter and
   Gamble Company, and NACCO Industries.

JAMES O. WELCH, JR., (DOB: 5/13/1931) Trustee
   Retired Chairman of Nabisco Brands, Inc.; retired Vice Chairman and
   Director of RJR Nabisco; Director of TECO Energy, Inc., and Kmart
   Corporation.


J. LAWRENCE WILSON, (DOB: 3/2/1936) Trustee
   Chairman and Chief Executive Officer of Rohm & Haas Company; Director of
   Cummins Engine Company, and The Mead Corporation; and Trustee of Vanderbilt
   University.


RICHARD F. HYLAND, (DOB: 3/22/1937) Treasurer*
   Treasurer of The Vanguard Group, Inc. and of each of the investment
   companies in The Vanguard Group.

RAYMOND J. KLAPINSKY, (DOB: 12/7/1938) Secretary*
   Managing Director and Secretary of The Vanguard Group, Inc.; Secretary of
   each of the investment companies in The Vanguard Group.


KAREN E. WEST, (DOB: 9/13/1946) Controller*
   Principal of The Vanguard Group, Inc.; Controller of each of the investment
   companies in The Vanguard Group.

- ------------------------
* Mr. Bogle and the Officers of the Fund are "interested persons" as defined in
   the Investment Company Act of 1940.


                                                                            B-27
<PAGE>

The Vanguard Group

     The Fund is a member of The Vanguard Group of Investment Companies.
Through their jointly-owned subsidiary, The Vanguard Group, Inc., the Fund and
the other funds (the "Vanguard Funds") in the Group obtain at-cost virtually
all of their corporate management, administrative and distribution services.
Vanguard also provides investment advisory services on an at-cost basis to
several of the Vanguard Funds, including the Fund.

     Vanguard employs a supporting staff of management and administrative
personnel needed to provide the requisite services to the Vanguard Funds and
also furnishes the Vanguard Funds with necessary office space, furnishings and
equipment. Each Vanguard Fund pays its share of Vanguard's net expenses which
are allocated among the Vanguard Funds under methods approved by the Board of
Trustees (Directors) of each Vanguard Fund. In addition, each Vanguard Fund
bears its own direct expenses such as legal, auditing and custodian fees. In
order to generate additional revenues for Vanguard and thereby reduce the
Vanguard Fund's expenses, Vanguard also provides certain administrative
services to other organizations.

     The Fund's Officers are also Officers and employees of Vanguard. No
Officer or employee owns, or is permitted to own, any securities of any
external adviser for the Vanguard Funds.

     The Vanguard Group adheres to a Code of Ethics established pursuant to
Rule 17j-1 under the Investment Company Act of 1940. The Code is designed to
prevent unlawful practices in connection with the purchase or sale of
securities by persons associated with Vanguard. Under Vanguard's Code of Ethics
certain Officers and employees of Vanguard who are considered access persons
are permitted to engage in personal securities transactions. However, such
transactions are subject to procedures and guidelines substantially similar to
those recommended by the mutual fund industry and approved by the U.S.
Securities and Exchange Commission.

     The Vanguard Group, Inc. was established and operates under a Funds'
Service Agreement which was approved by the shareholders of each of the
Vanguard Funds. The Funds' Service Agreement provides for the following
arrangement: (a) each Vanguard Fund may invest up to 0.40% of its current net
assets in Vanguard, and (b) there is no restriction on the maximum aggregate
cash investment that the Vanguard Funds may make in Vanguard. The amounts which
each of the Vanguard Funds has invested are adjusted from time to time in order
to maintain the proportionate relationship between each Fund's relative net
assets and its contribution to Vanguard's capital. At November 30, 1997, the
Funds' capital contribution was as follows: Vanguard California Tax-Free Fund
had contributed capital of $242,000 to Vanguard representing 1.2% of Vanguard's
capitalization. Vanguard Florida Insured Tax-Free Fund had contributed $41,000
to Vanguard, representing 0.2% of Vanguard's capitalization. Vanguard New
Jersey Tax-Free Fund had contributed $131,000 to Vanguard, representing 0.7% of
Vanguard's capitalization. Vanguard New York Tax-Free Fund had contributed
$83,000 to Vanguard, representing 0.4% of Vanguard's capitalization. Vanguard
Ohio Tax-Free Fund had contributed $37,000 to Vanguard, representing 0.2% of
Vanguard's capitalization. Vanguard Pennsylvania Tax-Free Fund had contributed
$224,000 to Vanguard, representing 1.1% of Vanguard's capitalization.

     Management. Corporate management and administrative services include: (1)
executive staff; (2) accounting and financial; (3) legal and regulatory; (4)
shareholder account maintenance; (5) monitoring and control of custodian
relationships; (6) shareholder reporting; and (7) review and evaluation of
advisory and other services provided to the Funds by third parties. During the
fiscal year ended November 30, 1997, each of the Funds' share of Vanguard's
actual net costs of operations relating to management and administrative


B-28
<PAGE>

   
services (including transfer agency) were as follows: Vanguard California
Tax-Free Fund totaled approximately $4,089,000. Vanguard Florida Insured
Tax-Free Fund totaled approximately $785,000. Vanguard New Jersey Tax-Free Fund
totaled approximately $2,580. Vanguard New York Tax-Free Fund totaled
approximately $1,593,000. Vanguard Ohio Tax-Free Fund totaled approximately
$676,000. Vanguard Pennsylvania Tax-Free Fund totaled approximately $4,382,000.
 
    

     Distribution. Vanguard provides all distribution and marketing activities
for the Funds in the Group. Vanguard Marketing Corporation, a wholly-owned
subsidiary of The Vanguard Group, Inc., acts as a Sales Agent for shares of the
Funds, in connection with any sales made directly to investors in the states of
Florida, Missouri, New York, Ohio, Texas and such other states as may be
required.

     The principal distribution expenses are for advertising, promotional
materials and marketing personnel. Distribution services may also include
organizing and offering to the public, from time to time, one or more new
investment companies which will become members of the Group. The Trustees
(Directors) and Officers of Vanguard determine the amount to be spent annually
on distribution activities, the manner and amount to be spent on each Fund, and
whether to organize new investment companies.

     One half of the distribution expenses of a marketing and promotional
nature is allocated among the Funds based upon their relative net assets. The
remaining one half of these expenses is allocated among the Funds based upon
each Fund's sales for the preceding 24 months relative to the total sales of
the Funds as a Group, provided, however, that no Fund's aggregate quarterly
rate of contribution for distribution expenses of a marketing and promotional
nature shall exceed 125% of the average distribution expense rate for the
Group, and that no Fund shall incur annual distribution expenses in excess of
20/100 of 1% of its average month-end net assets. During the year ended
November 30, 1997, the Group's distribution and marketing expenses attributable
to the Funds were as follows: Vanguard California Tax-Free Fund paid
approximately $883,000. Vanguard Florida Insured Tax-Free Fund paid
approximately $137,000. Vanguard New Jersey Tax-Free Fund paid approximately
$509,000. Vanguard New York Tax-Free Fund paid approximately $241,000. Vanguard
Ohio Tax-Free Fund paid approximately $142,000. Vanguard Pennsylvania Tax-Free
Fund paid approximately $826,000.

     Investment Advisory Services. Vanguard also provides investment advisory
services to: Vanguard Municipal Bond Fund; Vanguard Money Market Reserves;
Vanguard Admiral Funds; the several Portfolios of Vanguard Fixed Income
Securities Fund; Vanguard Institutional Index Fund; Vanguard Bond Index Fund;
Vanguard California Tax-Free Fund; Vanguard Florida Insured Tax-Free Fund;
Vanguard New Jersey Tax-Free Fund; Vanguard New York Tax-Free Fund; Vanguard
Ohio Tax-Free Fund; Vanguard Pennsylvania Tax-Free Fund; Vanguard Tax-Managed
Fund; the Aggressive Growth Portfolio of Vanguard Horizon Fund; the Total
International Portfolio of Vanguard STAR Fund; the REIT Index Portfolio of
Vanguard Specialized Portfolios; Vanguard Balanced Index Fund; Vanguard Index
Trust; Vanguard International Equity Index Fund; a secured Portfolio of
Vanguard Variable Insurance Fund; a portion of Vanguard/Windsor II; a portion
of Vanguard/Morgan Growth Fund; a portion of Vanguard Explorer Fund; as well as
several indexed separate accounts. These services are provided on an at-cost
basis from a money management staff employed directly by Vanguard. The
compensation and other expenses of this staff are paid by the Funds utilizing
these services. The following table shows, for the years ended November 30,
1995, 1996 and 1997, approximately how much the Funds paid of Vanguard's
investment advisory expenses.
 

                                                                            B-29
<PAGE>


<TABLE>
<CAPTION>
                      Fund                          Year Ended 11/30/95     Year Ended 11/30/96     Year Ended 11/30/97
- ------------------------------------------------   ---------------------   ---------------------   ---------------------
<S>                                                <C>                     <C>                     <C>
Vanguard California Tax-Free Fund ..............          $286,000                $313,000                $470,000
Vanguard Florida Insured Tax-Free Fund .........          $ 46,000                $ 58,000                $ 82,000
Vanguard New Jersey Tax-Free Fund ..............          $201,000                $211,000                $274,000
Vanguard New York Tax-Free Fund ................          $101,000                $110,000                $150,000
Vanguard Ohio Tax-Free Fund ....................          $ 43,000                $ 49,000                $ 77,000
Vanguard Pennsylvania Tax-Free Fund ............          $339,000                $357,000                $466,000
</TABLE>

Director/Trustee Compensation

     The individuals in the tables below serve as Directors/Trustees of all
Vanguard Funds, and each Fund pays a proportionate share of the
Directors'/Trustees' compensation. The Funds employ their officers on a shared
basis, as well. However, officers are compensated by The Vanguard Group, Inc.,
not the Funds.

     Independent Directors/Trustees. The Funds compensate their independent
Directors/Trustees--that is, the ones who are not also officers of the Fund--in
three ways:

o The independent Directors/Trustees receive an annual fee for their service to
  the Funds, which is subject to reduction based on absences from scheduled
  Board meetings.

o The independent Directors/Trustees are reimbursed for the travel and other
  expenses that they incur in attending Board meetings.

o Upon retirement, the independent Directors/Trustees receive an aggregate
  annual fee of $1,000 for each year served on the Board, up to fifteen years
  of service. This annual fee is paid for ten years following retirement, or
  until the Directors'/Trustees' death.

     "Interested" Directors/Trustees. The Funds' interested
Directors/Trustees--Messrs. Bogle and Brennan--receive no compensation for
their service in that capacity. However, they are paid in their role as
officers of The Vanguard Group, Inc.

     Compensation Table. The following tables provide compensation details for
each of the Trustees. For the Funds, we list the amount paid as compensation
and accrued as retirement benefits by the Fund for each Trustee. In addition,
the table shows the total amount of benefits that we expect each
Director/Trustee to receive from all Vanguard Funds upon retirement, and the
total amount of compensation paid to each Director/Trustee by all Vanguard
Funds. All information shown is for the fiscal year ended November 30, 1997.

B-30
<PAGE>

                       VANGUARD CALIFORNIA TAX-FREE FUND
                              COMPENSATION TABLE




<TABLE>
<CAPTION>
                                    Aggregate     Pension or Retirement       Estimated         Total Compensation
                                  Compensation     Benefits Accrued as     Annual Benefits    From All Vanguard Funds
Name of Trustees                    From Fund     Part of Fund Expenses    Upon Retirement     Paid to Trustees (2)
- -------------------------------  --------------  -----------------------  -----------------  ------------------------
<S>                              <C>             <C>                      <C>                <C>
John C. Bogle(1) ..............       None                None                 None                   None
John J. Brennan(1) ............       None                None                 None                   None
Barbara Barnes Hauptfuhrer.....       $ 859               $ 128                $15,000                $70,000
Robert E. Cawthorn ............       $ 859               $ 107                $13,000                $70,000
Burton G. Malkiel .............       $ 861               $  86                $15,000                $70,000
Alfred M. Rankin, Jr. .........       $ 859               $  67                $15,000                $70,000
John C. Sawhill ...............       $ 859               $  80                $15,000                $70,000
James O. Welch, Jr. ...........       $ 859               $  99                $15,000                $70,000
J. Lawrence Wilson ............       $ 859               $  71                $15,000                $70,000
</TABLE>

(1) As "Interested Trustees," Messrs. Bogle and Brennan receive no compensation
    for their service as Trustees.

(2) The amounts reported in this column reflect the total compensation paid to
    each Trustee for their service as Director or Trustee of 35 Vanguard Funds
    (34 in the case of Mr. Malkiel).


                    VANGUARD FLORIDA INSURED TAX-FREE FUND
                              COMPENSATION TABLE




<TABLE>
<CAPTION>
                                    Aggregate     Pension or Retirement       Estimated         Total Compensation
                                  Compensation     Benefits Accrued as     Annual Benefits    From All Vanguard Funds
Name of Trustees                    From Fund     Part of Fund Expenses    Upon Retirement     Paid to Trustees (2)
- -------------------------------  --------------  -----------------------  -----------------  ------------------------
<S>                              <C>             <C>                      <C>                <C>
John C. Bogle(1) ..............       None                None                 None                   None
John J. Brennan(1) ............       None                None                 None                   None
Barbara Barnes Hauptfuhrer.....       $ 151               $  23                $15,000                $70,000
Robert E. Cawthorn ............       $ 151               $  19                $13,000                $70,000
Burton G. Malkiel .............       $ 155               $  15                $15,000                $70,000
Alfred M. Rankin, Jr. .........       $ 151               $  12                $15,000                $70,000
John C. Sawhill ...............       $ 151               $  14                $15,000                $70,000
James O. Welch, Jr. ...........       $ 151               $  17                $15,000                $70,000
J. Lawrence Wilson ............       $ 151               $  13                $15,000                $70,000
</TABLE>

(1) As "Interested Trustees," Messrs. Bogle and Brennan receive no compensation
    for their service as Trustees.

(2) The amounts reported in this column reflect the total compensation paid to
    each Trustee for their service as Director or Trustee of 35 Vanguard Funds
    (34 in the case of Mr. Malkiel).
 

                                                                            B-31
<PAGE>

                       VANGUARD NEW JERSEY TAX-FREE FUND
                              COMPENSATION TABLE




<TABLE>
<CAPTION>
                                    Aggregate     Pension or Retirement       Estimated         Total Compensation
                                  Compensation     Benefits Accrued as     Annual Benefits    From All Vanguard Funds
Name of Trustees                    From Fund     Part of Fund Expenses    Upon Retirement     Paid to Trustees (2)
- -------------------------------  --------------  -----------------------  -----------------  ------------------------
<S>                              <C>             <C>                      <C>                <C>
John C. Bogle(1) ..............       None                None                 None                   None
John J. Brennan(1) ............       None                None                 None                   None
Barbara Barnes Hauptfuhrer.....       $ 514               $ 77                 $15,000                $70,000
Robert E. Cawthorn ............       $ 514               $ 64                 $13,000                $70,000
Burton G. Malkiel .............       $ 514               $ 51                 $15,000                $70,000
Alfred M. Rankin, Jr. .........       $ 514               $ 40                 $15,000                $70,000
John C. Sawhill ...............       $ 514               $ 48                 $15,000                $70,000
James O. Welch, Jr. ...........       $ 514               $ 59                 $15,000                $70,000
J. Lawrence Wilson ............       $ 514               $ 43                 $15,000                $70,000
</TABLE>

(1) As "Interested Trustees," Messrs. Bogle and Brennan receive no compensation
    for their service as Trustees.


(2) The amounts reported in this column reflect the total compensation paid to
    each Trustee for their service as Director or Trustee of 35 Vanguard Funds
    (34 in the case of Mr. Malkiel).


                        VANGUARD NEW YORK TAX-FREE FUND
                              COMPENSATION TABLE




<TABLE>
<CAPTION>
                                    Aggregate     Pension or Retirement       Estimated         Total Compensation
                                  Compensation     Benefits Accrued as     Annual Benefits    From All Vanguard Funds
Name of Trustees                    From Fund     Part of Fund Expenses    Upon Retirement     Paid to Trustees (2)
- -------------------------------  --------------  -----------------------  -----------------  ------------------------
<S>                              <C>             <C>                      <C>                <C>
John C. Bogle(1) ..............       None                None                 None                   None
John J. Brennan(1) ............       None                None                 None                   None
Barbara Barnes Hauptfuhrer.....       $ 287               $ 43                 $15,000                $70,000
Robert E. Cawthorn ............       $ 287               $ 36                 $13,000                $70,000
Burton G. Malkiel .............       $ 291               $ 28                 $15,000                $70,000
Alfred M. Rankin, Jr. .........       $ 287               $ 23                 $15,000                $70,000
John C. Sawhill ...............       $ 287               $ 27                 $15,000                $70,000
James O. Welch, Jr. ...........       $ 287               $ 33                 $15,000                $70,000
J. Lawrence Wilson ............       $ 287               $ 24                 $15,000                $70,000
</TABLE>

(1) As "Interested Trustees," Messrs. Bogle and Brennan receive no compensation
    for their service as Trustees.


(2) The amounts reported in this column reflect the total compensation paid to
    each Trustee for their service as Director or Trustee of 35 Vanguard Funds
    (34 in the case of Mr. Malkiel).


B-32
<PAGE>

                          VANGUARD OHIO TAX-FREE FUND
                              COMPENSATION TABLE




<TABLE>
<CAPTION>
                                    Aggregate     Pension or Retirement       Estimated         Total Compensation
                                  Compensation     Benefits Accrued as     Annual Benefits    From All Vanguard Funds
Name of Trustees                    From Fund     Part of Fund Expenses    Upon Retirement      Paid to Trustees(2)
- -------------------------------  --------------  -----------------------  -----------------  ------------------------
<S>                              <C>             <C>                      <C>                <C>
John C. Bogle(1) ..............       None                None                 None                   None
John J. Brennan(1) ............       None                None                 None                   None
Barbara Barnes Hauptfuhrer.....       $ 140               $ 21                 $15,000                $70,000
Robert E. Cawthorn ............       $ 140               $ 18                 $13,000                $70,000
Burton G. Malkiel .............       $ 145               $ 14                 $15,000                $70,000
Alfred M. Rankin, Jr. .........       $ 140               $ 11                 $15,000                $70,000
John C. Sawhill ...............       $ 140               $ 13                 $15,000                $70,000
James O. Welch, Jr. ...........       $ 140               $ 16                 $15,000                $70,000
J. Lawrence Wilson ............       $ 140               $ 12                 $15,000                $70,000
</TABLE>

(1) As "Interested Trustees," Messrs. Bogle and Brennan receive no compensation
    for their service as Trustees.

(2) The amounts reported in this column reflect the total compensation paid to
    each Trustee for their service as Director or Trustee of 35 Vanguard Funds
    (34 in the case of Mr. Malkiel).


                      VANGUARD PENNSYLVANIA TAX-FREE FUND
                              COMPENSATION TABLE



<TABLE>
<CAPTION>
                                    Aggregate     Pension or Retirement       Estimated         Total Compensation
                                  Compensation     Benefits Accrued as     Annual Benefits    From All Vanguard Funds
Name of Trustees                    From Fund     Part of Fund Expenses    Upon Retirement     Paid to Trustees (2)
- -------------------------------  --------------  -----------------------  -----------------  ------------------------
<S>                              <C>             <C>                      <C>                <C>
John C. Bogle(1) ..............       None                None                 None                   None
John J. Brennan(1) ............       None                None                 None                   None
Barbara Barnes Hauptfuhrer.....       $ 867               $ 129                $15,000                $70,000
Robert E. Cawthorn ............       $ 867               $ 108                $13,000                $70,000
Burton G. Malkiel .............       $ 871               $  87                $15,000                $70,000
Alfred M. Rankin, Jr. .........       $ 867               $  68                $15,000                $70,000
John C. Sawhill ...............       $ 867               $  81                $15,000                $70,000
James O. Welch, Jr. ...........       $ 867               $  99                $15,000                $70,000
J. Lawrence Wilson ............       $ 867               $  72                $15,000                $70,000
</TABLE>

(1) As "Interested Trustees," Messrs. Bogle and Brennan receive no compensation
    for their service as Trustees.

(2) The amounts reported in this column reflect the total compensation paid to
    each Trustee for their service as Director or Trustee of 35 Vanguard Funds
    (34 in the case of Mr. Malkiel).
 

                                                                            B-33
<PAGE>

                    DESCRIPTION OF SHARES AND VOTING RIGHTS

     The Funds were organized as Pennsylvania business trusts on the following
dates: Vanguard California Tax-Free Fund - October 16, 1985; Vanguard Florida
Insured Tax-Free Fund - May 22, 1992; Vanguard New Jersey Tax-Free Fund -
September 25, 1987; Vanguard New York Tax-Free Fund - October 16, 1985;
Vanguard Ohio Tax-Free Fund - March 16, 1990; Vanguard Pennsylvania Tax-Free
Fund - January 15, 1986.

     The Declaration of Trust (as amended and restated on January 15, 1986 for
Vanguard California Tax-Free Fund, and for Vanguard New York Tax-Free Fund)
permits the Trustees to issue an unlimited number of shares of beneficial
interest, without par value, from an unlimited number of separate classes
("Portfolios") of shares. Currently, the California Tax-Free Fund is offering
shares of three Portfolios, the Florida Insured Tax-Free Fund is offering
shares of one Portfolio, and the New Jersey, New York, Ohio and Pennsylvania
Tax-Free Funds are offering shares of two Portfolios.

     The shares of the Fund are fully paid and non-assessable, except as set
forth under "Shareholder and Trustee Liability," and have no preference as to
conversion, exchange, dividends, retirement or other features. The shares of
the Fund have no preemptive rights. The shares of the Fund have non-cumulative
voting rights, which means that the holders of more than 50% of the shares
voting for the election of Trustees can elect 100% of the Trustees if they
choose to do so. A shareholder is entitled to one vote for each full share held
(and a fractional vote for each fractional share held), then standing in his
name on the books of the Fund. On any matter submitted to a vote of
shareholders, all shares of the Fund then issued and outstanding and entitled
to vote, irrespective of the class, shall be voted in the aggregate and not by
class: except (i) when required by the Investment Company Act of 1940, shares
shall be voted by individual class; and (ii) when the matter does not affect
any interest of a particular class, then only shareholders of the affected
class or classes shall be entitled to vote thereon.

     The Fund will continue without limitation of time, provided, however that:
 


      1) Subject to the majority vote of the holders of shares of the Fund
   outstanding, the Trustees may sell or convert the assets of the Fund to
   another investment company in exchange for shares of such investment
   company, and distribute such shares, ratably among the shareholders of the
   Fund.

      2) Subject to the majority vote of shares of the Fund outstanding, the
   Trustees may sell and convert into money the assets of the Fund and
   distribute such assets ratably among the shareholders of the Fund.

     Upon completion of the distribution of the remaining proceeds or the
remaining assets of any Portfolio as provided in paragraphs 1) and 2) above the
Fund shall terminate and the Trustees shall be discharged of any and all
further liabilities and duties hereunder and the right, title and interest of
all parties shall be canceled and discharged.


Shareholder and Trustee Liability

     Under Pennsylvania law shareholders of such a Trust may under certain
circumstances, be held personally liable as partners for the obligations of the
Fund. Therefore, the Declaration of Trust contains an express disclaimer of
shareholder liability for acts or obligations of the Fund and requires that
notice of such disclaimer be given in each agreement, obligation, or instrument
entered into or executed by the Fund or the Trustees. The Declaration of Trust
provides for indemnification out of the Fund property of any shareholder held
personally liable for the obligations of the Fund. The Declaration of Trust
also provides that the Fund


B-34
<PAGE>

shall, upon request, assume the defense of any claim made against any
shareholder for any act or obligation of the Fund and satisfy any judgment
thereon. Thus, the risk of a shareholder incurring financial loss on account of
shareholder liability is limited to circumstances in which the Fund itself
would be unable to meet its obligations.

     The Declaration of Trust further provides that the Trustees will not be
liable for errors of judgment or mistakes of fact or law, but nothing in the
Declaration of Trust protects a Trustee against any liability to which he would
otherwise be subject by reason of willful misfeasance, bad faith, gross
negligence, or reckless disregard of the duties involved in the conduct of his
office.


                             FINANCIAL STATEMENTS

   
     The Funds' respective financial statements as of and for the year ended
November 30, 1997, appearing in the Funds' respective 1997 Annual Reports to
Shareholders, and the respective reports thereon of Price Waterhouse LLP,
independent accountants, also appearing therein, are incorporated by reference
in this Statement of Additional Information. The Funds' respective 1997 Annual
Reports to Shareholders are available upon request.
    


                                                                            B-35
<PAGE>

        APPENDIX A -- DESCRIPTION OF MUNICIPAL BONDS AND THEIR RATINGS


     Municipal Bonds -- General. Municipal Bonds generally include debt
obligations issued by states and their political subdivisions, and duly
constituted authorities and corporations, to obtain funds to construct, repair
or improve various public facilities such as airports, bridges, highways,
hospitals, housing, schools, streets and water and sewer works. Municipal Bonds
may also be issued to refinance outstanding obligations as well as to obtain
funds for general operating expenses and for loan to other public institutions
and facilities.


     The two principal classifications of Municipal Bonds are "general
obligation" and "revenue" or "special tax" bonds. General obligation bonds are
secured by the issuer's pledge of its full faith, credit and taxing power for
the payment of principal and interest. Revenue or special tax bonds are payable
only from the revenues derived from a particular facility or class of
facilities or, in some cases, from the proceeds of a special excise or other
tax, but not from general tax revenues. The Fund may also invest in tax-exempt
industrial development bonds, short-term municipal obligations, demand notes
and tax-exempt commercial papers.


     Industrial revenue bonds in most cases are revenue bonds and generally do
not have the pledge of the credit of the issuer. The payment of the principal
and interest on such industrial revenue bonds is dependent solely on the
ability of the user of the facilities financed by the bonds to meet its
financial obligations and the pledge, if any, of real and personal property so
financed as security for such payment. Short-term municipal obligations issued
by states, cities, municipalities or municipal agencies include Tax
Anticipation Notes, Revenue Anticipation Notes, Bond Anticipation Notes,
Construction Loan Notes and Short-Term Discount Notes.


     Note obligations with demand or put options may have a stated maturity in
excess of one year, but permit any holder to demand payment of principal plus
accrued interest upon a specified number of days' notice. Frequently, such
obligations are secured by letters of credit or other credit support
arrangements provided by banks. The issuer of such notes normally has a
corresponding right, after a given period, to repay in its discretion the
outstanding principal of the note plus accrued interest upon a specific number
of days' notice to the bondholders. The interest rate on a demand note may be
based upon a known lending rate, such as a bank's prime rate, and be adjusted
when such rate changes, or the interest rate on a demand note may be a market
rate that is adjusted at specified intervals. The demand notes in which the
Fund will invest are payable on not more than 397 days' notice. Each note
purchased by the Fund will meet the quality criteria set out above for the
Fund.


     The yields of Municipal Bonds depend on, among other things, general money
market conditions, conditions in the Municipal Bond market, the size of a
particular offering, the maturity of the obligation, and the rating of the
issue. The ratings of Moody's Investors Service, Inc. and Standard & Poor's
Corporation represent their opinions of the quality of the Municipal Bonds
rated by them. It should be emphasized that such ratings are general and are
not absolute stands of quality. Consequently, Municipal Bonds with the same
maturity, coupon and rating may have different yields, while Municipal Bonds of
the same maturity and coupon, but with different ratings may have the same
yield. It will be the responsibility of the investment management staff to
appraise independently the fundamental quality of the bonds held by the Fund.


     The Portfolios may purchase Municipal Bonds subject to so-called "demand
features." In such cases the Portfolio may purchase a security that is
nominally long-term but has many of the features of shorter-term securities. By
virtue of this demand feature, the security will be deemed to have a maturity
date that is earlier than its stated maturity date.


B-36
<PAGE>

     From time to time proposals have been introduced before Congress to
restrict or eliminate the Federal income tax exemption for interest on
Municipal Bonds. Similar proposals may be introduced in the future. If any such
proposal were enacted, it might restrict or eliminate the ability of the Fund
to achieve its investment objective. In that event, the Fund's Trustees and
Officers would reevaluate its investment objective and policies and consider
recommending to its shareholders changes in such objective and policies.


     Similarly, from time to time proposals have been introduced before State
and local legislatures to restrict or eliminate the State and local income tax
exemption for interest on Municipal Bonds. Similar proposals may be introduced
in the future. If any such proposal were enacted, it might restrict or
eliminate the ability of each Portfolio to achieve its respective investment
objective. In that event, the Fund's Trustees and Officers would reevaluate its
investment objective and policies and consider recommending to its shareholders
changes in such objective and policies. (For more information please refer to
"Risk Factors" on page B-7.)


     Ratings. Excerpts from Moody's Investors Service, Inc.'s Municipal Bond
ratings: Aaa -- judged to be of the "best quality" and are referred to as "gilt
edge"; interest payments are protected by a large or by an exceptionally stable
margin and principal is secure; Aa -- judged to be of "high quality by all
standards" but as to which margins of protection or other elements make
long-term risks appear somewhat larger than Aaa-rated Municipal Bonds; together
with Aaa group they comprise what are generally know as "high grade bonds"; A
- -- possess many favorable investment attributes and are considered "upper
medium grade obligations." Factors giving security to principal and interest of
A-rated Municipal Bonds are considered adequate, but elements may be present
which suggest a susceptibility to impairment sometime in the future; Baa --
considered as medium grade obligations; i.e., they are neither highly protected
nor poorly secured; interest payments and principal security appear adequate
for the present but certain protective elements may be lacking or may be
characteristically unreliable over any great length of time; Ba -- protection
of principal and interest payments may be very moderate; judged to have
speculative elements; their future cannot be considered as well-assured; B --
lack characteristics of a desirable investment; assurance of interest and
principal payments over any long period of time may be small; Caa -- poor
standing; may be in default or there may be present elements of danger with
respect to principal and interest; Ca -- speculative in a high degree; often in
default; C -- lowest rated class of bonds; issues so rated can be regarded as
having extremely poor prospects for ever attaining any real investment
standing.


     Description of Moody's ratings of state and municipal notes: Moody's
ratings for state and municipal notes and other short-term obligations are
designated Moody's Investment Grade ("MIG"). Symbols used will be as follows:
MIG-1 -- Best quality, enjoying strong protection from established cash flows
of funds for their servicing or from established and broad-based access to the
market for refinancing, or both; MIG-2 -- High quality with margins of
protection ample although not so large as in the preceding group.


     Description of Moody's highest commercial paper rating: Prime-1 ("P-1") --
Judged to be of the best quality. Their short-term debt obligations carry the
smallest degree of investment risk.


     Excerpts from Standard & Poor's Corporation's Municipal Bond ratings: AAA
- -- has the highest rating assigned by S&P; extremely strong capacity to pay
principal and interest; AA -- has a very strong capacity to pay interest and
repay principal and differs from the higher rated issues only in a small
degree; A -- has a strong capacity to pay principal and interest, although
somewhat more susceptible to the adverse changes in circumstances and economic
conditions; BBB -- regarded as having an adequate capacity to pay principal and
interest; normally exhibit adequate protection parameters but adverse economic
conditions or changing


                                                                            B-37
<PAGE>

circumstances are more likely to lead to a weakened capacity to pay principal
and interest than for bonds in A category; BB -- B - CCC -- CC predominantly
speculative with respect to capacity to pay interest and repay principal in
accordance with terms of obligation; BB is being paid; D -- in default, and
payment of principal and/or interest is in arrears.

     The ratings from "AA" to "B" may be modified by the addition of a plus or
minus sign to show relative standing within the major rating categories.

     Excerpt from Standard & Poor's Corporation's rating of municipal note
issues: SP-1+ -- very strong capacity to pay principal and interest; SP-1 --
strong capacity to pay principal and interest.

     Description of S&P's highest commercial papers ratings: A-1+ -- This
designation indicates the degree of safety regarding timely payment is
overwhelming. A-1 -- This designation indicates the degree of safety regarding
timely payment is very strong.


B-38


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