VANGUARD FLORIDA INSURED TAX FREE FUND
N-30D, 1996-07-19
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<PAGE>   1
                           A MESSAGE TO SHAREHOLDERS

DEAR SHAREHOLDER:

The declining interest rate environment that prevailed for most of fiscal 1995
reversed course during the first six months of our current fiscal year.
Short-term tax-exempt yields, after falling through late February, stabilized
and then abruptly rose to end the six-month period slightly higher than where
they began. Long-term tax-exempt yields also moved lower at the outset of the
period, before creeping higher to end above their starting point. This overall
increase in interest rates resulted in lower prices for municipal bonds.

         During the past twelve months, the net asset values of our Insured
Longer-Term Portfolios were negatively impacted by rising rates, but each
Portfolio's income component more than compensated for any decrease in
principal. Our Money Market Portfolios all gave good accounts of themselves,
providing returns that fully reflect the current level of interest rates. The
table on page 3 of this Report provides detailed results for each of our State
Tax-Free Portfolios, including per share net asset values, dividend and capital
gains distributions, and total returns over the past six and twelve months, as
well as current yields. In summary form, here are the Portfolio highlights:

THE STATE MONEY MARKET PORTFOLIOS--provided total returns ranging from +3.4% to
+3.6% for the past year. As expected, net asset values remained at $1.00 per
share. As the following table illustrates, current yields are in the area of
3.4%, moderately lower than they were twelve months ago:

<TABLE>
<CAPTION>
- ----------------------------------------------------------
                                      SEVEN-DAY
                                  ANNUALIZED YIELD    
                           -------------------------------
MONEY MARKET               MAY 31,    NOV. 30,     MAY 31,
PORTFOLIO                   1996        1995        1995
- ----------------------------------------------------------
<S>                         <C>         <C>         <C>
CALIFORNIA                  3.39%       3.61%       3.80%
PENNSYLVANIA                3.44        3.64        3.80
NEW JERSEY                  3.30        3.57        3.71
OHIO                        3.43        3.71        3.92
- ----------------------------------------------------------
</TABLE>

THE STATE INSURED LONGER-TERM PORTFOLIOS--earned sufficient income to offset
the modest decrease in long-term municipal bond prices, providing total returns
(capital change plus reinvested dividends) ranging from +3.4% to +5.0% for the
twelve months. Despite the swings in interest rates during the period, the
current yields on the Insured Longer-Term Portfolios (roughly 5.2%) are nearly
identical to their levels of twelve months ago.

         To provide some perspective on how our Insured Longer-Term Portfolios
performed during the past year, the table below breaks out the two components
of total return--income return and capital return. As you can see, the positive
contribution of each Portfolio's income return was marginally reduced by its
negative capital return.

<TABLE>
<CAPTION>
- ---------------------------------------------------------
                                 INVESTMENT RETURNS   
                           ------------------------------
                                 TWELVE MONTHS ENDED
                                    MAY 31, 1996      
                           ------------------------------
INSURED LONGER-TERM
PORTFOLIO                  INCOME      CAPITAL      TOTAL
- ---------------------------------------------------------
<S>                         <C>          <C>         <C>
CALIFORNIA
  INTERMEDIATE-TERM         +5.1%        -0.1%       +5.0%
CALIFORNIA LONG-TERM        +5.5         -1.7        +3.8
NEW YORK                    +5.4         -1.6        +3.8
PENNSYLVANIA                +5.6         -1.3        +4.3
NEW JERSEY                  +5.3         -1.9        +3.4
OHIO                        +5.4         -1.6        +3.8
FLORIDA                     +5.2         -1.4        +3.8
- ---------------------------------------------------------
</TABLE>

FIXED-INCOME MARKET REVIEW

Although the Federal Reserve lowered short-term interest rates in December and
January, the bond market fretted over the apparent strength of the U.S. economy
and the possibility of an increase in inflation. During the past six months,
the yield on the long-term U.S. Treasury bond, the benchmark for the bond
market, rose from 6.1% to 6.9%, engendering a price decline of approximately
- -10% (excluding interest income).

         The long-term municipal bond market fared much better. On balance for
the six-month period, yields on high-grade municipal bonds increased less
dramatically (5.5% to 5.9%), resulting in a price


                                      1
<PAGE>   2
decline of only -6%. Yields on top-grade (MIG 1) municipal notes remained
essentially unchanged on balance at 3.7%.

         Although the future direction of interest rate movements is virtually
impossible to predict with any level of accuracy and consistency, the relative
performance of bond funds with comparable quality and maturity guidelines is
surprisingly predictable.  That is to say, bond funds holding similar types of
securities--say, high-quality, long-term municipal bonds--should, on average,
earn roughly equivalent gross returns. What that absolute return will be,
however, is anyone's guess. On the other hand, what can be predicted with some
semblance of accuracy is the relative performance differential due to the
expense ratios of the funds. The average Vanguard Insured Longer-Term
Portfolio, for example, operates with an annual expense ratio of 0.2%, compared
to 0.9% for our average competitor. Therefore, holding all other factors equal,
a typical Vanguard Insured Longer-Term Portfolio begins with an annual income
advantage of +0.7% over a comparable municipal bond fund.

IN SUMMARY

As you may know, one of the benefits of Vanguard's Insured Longer-Term
Portfolios is their municipal bond insurance, which guarantees the timely
payment of principal and interest. These insurance provisions provide
protection against deteriorating creditworthiness within the various
municipalities and add an important level of enhanced safety.

         There are, of course, "costs" associated with insuring our Portfolios
against potential default. First, bonds that are issued with insurance
typically offer slightly lower yields than non-insured bonds. A second cost is
the explicit expense of purchasing insurance on non-insured bonds. Despite
these costs, however, our top-quality Portfolios continue to benefit from our
expense ratio advantage and provide yields that are fully competitive with
those of uninsured municipal bond portfolios.

         Over time, given our high-quality, low-cost advantage, Vanguard State
Tax-Free Portfolios should remain attractive relative to our competitors'
funds. We look forward to reporting to you in further detail in our 1996 Annual
Report six months hence.

Sincerely,

/s/ JOHN C. BOGLE
- -----------------
John C. Bogle
Chairman of the Board

/s/ JOHN J. BRENNAN
- -------------------
John J. Brennan
President

June 8, 1996

NOTE: MUTUAL FUND DATA FROM LIPPER ANALYTICAL SERVICES, INC.





                                       2
<PAGE>   3
                              PORTFOLIO STATISTICS

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
                                                         Net Asset Value              Income
                          Total                             Per Share               Dividends               Total Return
                     Net Assets                         -------------------      -----------------       -----------------
                     (millions)      Average   Average  Nov. 30,    May 31,       Six       Twelve         Six      Twelve   Current
Portfolio          May 31, 1996     Maturity  Quality*    1995       1996        Months     Months       Months     Months   Yield**
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                               <C>          <C>     <C>         <C>          <C>          <C>         <C>         <C>       <C>
MONEY MARKET
  CALIFORNIA  . . . . .  $1,276      42 DAYS   MIG 1   $ 1.00      $ 1.00       $.017        $.034        +1.7%       +3.5%    3.39%
  PENNSYLVANIA  . . . .   1,306      32 DAYS   MIG 1     1.00        1.00        .017         .035        +1.7        +3.5     3.44
  NEW JERSEY  . . . . .     888      57 DAYS   MIG 1     1.00        1.00        .016         .033        +1.6        +3.4     3.30
  OHIO  . . . . . . . .     199      60 DAYS   MIG 1     1.00        1.00        .017         .035        +1.7        +3.6     3.43
- -----------------------------------------------------------------------------------------------------------------------------------
INSURED INTERMEDIATE-TERM
  CALIFORNIA  . . . . .  $  264    7.4 YEARS     Aaa   $10.44      $10.25       $.254        $.512        +0.6%       +5.0%    4.77%
INSURED LONG-TERM
  CALIFORNIA  . . . . .     978   14.1 YEARS     Aaa    11.27       10.87        .299         .600        -0.9        +3.8     5.33
  NEW YORK  . . . . . .     879   11.7 YEARS     Aaa    11.01       10.57        .286         .574        -0.8+       +3.8+    5.23
  PENNSYLVANIA  . . . .   1,565   11.4 YEARS     Aaa    11.28       10.90        .304         .608        -0.4+       +4.3+    5.28
  NEW JERSEY  . . . . .     796   11.9 YEARS     Aaa    11.78       11.29        .310         .617        -1.1+       +3.4+    5.23
  OHIO  . . . . . . . .     203   10.9 YEARS     Aaa    11.63       11.25        .302         .605        -0.7        +3.8     5.29
  FLORIDA   . . . . . .     453   14.2 YEARS     Aaa    10.94       10.60        .275         .554        -0.6        +3.8     5.22
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

 * MIG 1 and Aaa are Moody's highest ratings for short-term and long-term
   municipal bonds, respectively.

** Money Market Portfolios' yields are 7-day annualized yields; others are
   30-day SEC yields.

 + Includes capital gains distributions of $.065 for New York, $.037 for
   Pennsylvania, and $.058 for New Jersey.

   Note: The shares of each of the Vanguard "single-state" Portfolios are
   available for purchase solely by residents of the designated states.





                                       3
<PAGE>   4
                          AVERAGE ANNUAL TOTAL RETURNS

THE CURRENT YIELDS QUOTED IN THE MESSAGE TO SHAREHOLDERS ARE CALCULATED IN
ACCORDANCE WITH SEC GUIDELINES. THE AVERAGE ANNUAL TOTAL RETURNS FOR THE
PORTFOLIOS (PERIODS ENDED MARCH 31, 1996) ARE AS FOLLOWS:

<TABLE>
<CAPTION>
                                                                                      SINCE INCEPTION    
                                                                              ------------------------------
                                        INCEPTION                              TOTAL      INCOME     CAPITAL
                                          DATE        1 YEAR      5 YEARS     RETURN      RETURN      RETURN
                                        ---------     ------      -------     ------      ------     -------
<S>                                     <C>           <C>         <C>         <C>          <C>        <C>
CALIFORNIA INSURED INTERMEDIATE-TERM     3/4/94       +7.60%         --       +6.56%       +5.08%     +1.48%
CALIFORNIA INSURED LONG-TERM             4/7/86       +7.73       +8.17%      +7.75        +6.47      +1.28
CALIFORNIA MONEY MARKET                  6/1/87       +3.57       +3.12       +4.11        +4.11       0.00
NEW YORK INSURED TAX-FREE                4/7/86       +7.50       +8.37       +7.32        +6.44      +0.88
PENNSYLVANIA INSURED LONG-TERM           4/7/86       +7.15       +8.41       +7.95        +6.64      +1.31
PENNSYLVANIA MONEY MARKET               6/13/88       +3.62       +3.12       +4.11        +4.11       0.00
NEW JERSEY INSURED LONG-TERM             2/3/88       +7.13       +8.10       +8.39        +6.43      +1.96
NEW JERSEY MONEY MARKET                  2/3/88       +3.50       +3.08       +4.09        +4.09       0.00
OHIO INSURED LONG-TERM                  6/18/90       +7.13       +8.08       +8.50        +5.97      +2.53
OHIO MONEY MARKET                       6/18/90       +3.72       +3.17       +3.49        +3.49       0.00
FLORIDA INSURED TAX-FREE                 9/1/92       +7.50          --       +7.62        +5.43      +2.19
</TABLE>

ALL OF THESE DATA REPRESENT PAST PERFORMANCE. THE INVESTMENT RETURN AND
PRINCIPAL VALUE OF AN INVESTMENT WILL FLUCTUATE SO THAT INVESTORS' SHARES, WHEN
REDEEMED, MAY BE WORTH MORE OR LESS THAN THEIR ORIGINAL COST.

PLEASE NOTE THAT AN INVESTMENT IN A MONEY MARKET FUND, SUCH AS THE MONEY MARKET
PORTFOLIOS OF VANGUARD STATE TAX-FREE FUNDS, IS NEITHER INSURED NOR GUARANTEED
BY THE U.S. GOVERNMENT, AND THERE IS NO ASSURANCE THAT THE FUND WILL BE ABLE TO
MAINTAIN A STABLE NET ASSET VALUE OF $1.00 PER SHARE.





                                       4
<PAGE>   5
                       REPORT FROM THE INVESTMENT ADVISER

         The two major factors affecting the Longer-Term Insured Portfolios
over the last six months were the sharp rise in interest rates and the
relatively better performance of municipal bonds versus their taxable
counterparts. The yield on the 30-year U.S.  Treasury bond increased 0.8
percentage points (from 6.1% to 6.9%). This was a decidedly unpleasant turn of
events for bondholders and their total returns. The increase in interest rates
was prompted by signs of an improving economy and investor concerns about
inflation. During the same period, the yield on high-grade, long-term municipal
bonds rose 0.4 percentage points (from 5.5% to 5.9%). The question of tax
reform first raised by Senator Armey (R-TX) and later championed by Steve
Forbes in the Republican Presidential primaries seemed to have been, at least
in part, answered. The reduced intensity of the rhetoric around the question of
tax reform was a contributing factor in explaining why the municipal market
performed better than the Treasury market.

         The Federal Reserve Board's last action on January 31, 1996, was to
reduce the Federal funds rate and the discount rate by 0.25 percentage points.
At that time, the economy appeared to be struggling, a situation further
exacerbated by the severity of the winter. Unfortunately for bond investors,
the release of February's economic statistics showed a much stronger than
anticipated economy. Concurrently, an increase in the prices of oil, gasoline,
wheat, and corn prodded some investors to become concerned about the specter of
higher inflation. The combined effects caused the yield on the 30-year U.S.
Treasury bond to increase sharply. The beginning of the Presidential primary
season added an extra degree of uncertainty to the market.

         While bear markets are never pleasant, they often offer investment
opportunities that can be exploited to the shareholders' eventual benefit.
First, the Portfolios' dividend distribution can be positively impacted by
swapping bonds with lower yields to maturity for bonds with higher yields to
maturity. Second, capital gains distributions can usually be reduced by
realizing offsetting capital losses. Finally, bear markets are generally the
best time to buy bonds that have superior protection from early redemption. As
interest rates rise, bonds which are noncallable or have long periods before
they are callable are often available at close to the same price as bonds with
less desirable characteristics. When the time comes for interest rates to
reverse course and fall, these bonds will furnish excellent capital returns
while providing a more stable dividend.

         The past six months have been a very volatile period of time. The
future remains unknown, but the State Insured Longer-Term Portfolios will
continue to focus on their objectives. It is through this commitment to
high-quality Federal and state tax-exempt municipal bonds and low-cost, prudent
management that superior and durable investment results can be achieved.

MONEY MARKETS

The volatility experienced in the Treasury market over the past six months has
had little impact on yields in the short-term municipal bond market. Yields on
one-year municipal notes ended the period very close to where they began,
despite a 0.3% rise in yields on one-year Treasury bills. Nevertheless, there
were two issues which had a substantial impact on the short-term market.
First, seasonal supply constraints that typically plague the short-term
municipal market in the spring dampened the average weighted maturities of
money market funds. Second, and most notably, the Securities and Exchange
Commission (SEC) announced changes in the regulations governing money market
funds which became effective June 3, 1996.

         In April, the SEC adopted amendments to rule 2a-7 under the Investment
Company Act of 1940. Section 2a-7 contains regulations that protect the quality
and safety of money market funds. For the most part, the changes emphasize
higher quality and increased diversification. The new guidelines were designed
to tighten the regulations imposed on tax-exempt money market funds and improve
the likelihood that the funds maintain a stable net asset value. Compliance
with the amendments may prove challenging for the industry. Many of our
competitors operate under somewhat lower quality standards and, as a result,
may be forced to significantly restructure their funds in order to meet the
standards. In contrast, our Money Market Portfolios have





                                       5
<PAGE>   6
always been managed quite conservatively with credit quality our most important
consideration. Consequently, we expect the impact of the changes on Vanguard's
State Tax-Free Money Market Portfolios to be minimal.

         The scarcity of new issue supply in the short-term municipal market
contributed to the relative stability in yields over the period. The supply of
short-term municipals tends to be quite seasonal, the timing of which depends
upon an issuer's fiscal year. The vast majority of issuers have fiscal years
beginning July 1 and ending June 30, causing new issue supply to decline in the
months leading up to June and increase dramatically in July. Looking forward,
the glut of new issue supply should provide ample opportunities for us to
extend our average maturities, increase our diversification, and further
enhance our overall quality.

         In conclusion, the months ahead should be challenging for the
industry, with tighter regulations governing tax-free money market funds coming
at a time when short-term issuance is at its peak. Hopefully, the new
amendments adopted by the SEC will "level the playing field," bringing
competitors closer to Vanguard's already conservative style of management,
thereby further enhancing the performance advantage that arises from our "rock
bottom" expense ratios.

Sincerely,

Ian A. MacKinnon           David E. Hamlin
Senior Vice President      Principal

Pamela W. Tynan            Danine A. Mueller
Principal                  Principal

Reid O. Smith              Jerome J. Jacobs
Principal                  Principal

Vanguard Fixed Income Group

June 18, 1996





                                       6
<PAGE>   7
                            STATEMENT OF NET ASSETS

                                                FINANCIAL STATEMENTS (unaudited)
                                                                    May 31, 1996

<TABLE>
<CAPTION>
                                                             Face         Market
                                                           Amount          Value
                                                            (000)         (000)+
- --------------------------------------------------------------------------------
<S>                                                      <C>            <C>
MUNICIPAL BONDS (102.5%)
- --------------------------------------------------------------------------------
ISSUER INSURED (87.3%)
  Alachua County FL Health Facilities
    (Shands Teaching Hosp.)
    6.25%, 12/1/11 (1)                                   $  3,095       $  3,285
    6.25%, 12/1/16 (1)                                      8,695          9,204
  Allegany FL Health System Rev.
    (St. Mary's Hosp.)
    5.00%, 12/1/12 (1)                                      7,380          6,678
  Boynton Beach FL Utilities System
    6.25%, 11/1/20 (3)                                      2,500          2,554
  Broward County FL Solid Waste
    5.75%, 7/1/13 (1)                                       4,130          4,121
  Canaveral FL Port Auth.
    6.00%, 6/1/06 (3)                                       1,000          1,048
  Charlotte County FL Utility System
    5.25%, 10/1/11 (3)                                      1,070          1,018
    6.75%, 10/1/13 (3)                                      2,750          2,971
    6.875%, 10/1/21 (3)                                     8,500          9,193
  Collier County FL COP
    6.25%, 2/15/13 (4)                                     12,500         13,303
  Coral Springs FL Improvement
    Dist. GO
    6.00%, 6/1/10 (1)                                       2,300          2,411
  Dade County FL Health
    Facilities Auth.
    (Baptist Hosp. Miami)
    5.25%, 5/15/13 (1)                                      5,500          5,114
  Dade County FL School GO
    6.125%, 6/1/14 (1)                                      6,660          6,777
    6.875%, 8/1/02 (1)                                      5,000          5,532
  Dade County FL Seaport GO
    5.125%, 10/1/26 (1)                                     6,000          5,270
    6.25%, 10/1/01 (2) (Prere.)                             2,000          2,156
    6.50%, 10/1/01 (2) (Prere.)                             4,090          4,457
  Dade County FL Water & Sewer
    System Rev.
    VRDO 3.50%, 6/5/96 (3)                                  8,820          8,820
    5.50%, 10/1/15 (3)                                      2,000          1,908
    6.25%, 10/1/07 (3)                                      1,000          1,084
    6.25%, 10/1/09 (3)                                      1,500          1,615
  Davie FL Water & Sewer
    6.375%, 10/1/12 (2)                                     2,500          2,705
  Dunedin FL Utility System
    6.75%, 10/1/08 (3)                                      1,115          1,256
    6.75%, 10/1/10 (3)                                      2,465          2,768
  Florida Municipal Power Agency
    (Tricity Project)
    5.00%, 10/1/10 (2)                                      4,340          4,025
  Florida Turnpike Auth.
    5.00%, 7/1/16 (3)                                       3,700          3,307
    5.00%, 7/1/19 (3)                                       5,900          5,215
    5.50%, 7/1/17 (3)                                      12,025         11,448
  Fort Pierce FL Utilities Auth.
    5.25%, 10/1/16 (2)                                      9,000          8,302
  Greater Orlando FL Aviation Auth.
    6.10%, 10/1/06 (2)                                      2,500          2,640
  Gulf Breeze FL Local Govt. Pooled
    Loan Program VRDO
    3.45%, 6/6/96 (3)                                      20,550         20,550
  Hillsborough County FL IDA
    (Univ. Community Hosp.)
    6.50%, 8/15/19 (1)                                     14,600         16,032
  Hillsborough County FL School
    Board COP
    5.625%, 7/1/15 (2)                                      6,500          6,253
  Indian River County FL
    Water & Sewer
    5.25%, 9/1/18 (3)                                       6,415          5,879
    6.50%, 9/1/08 (3)                                       2,540          2,802
  Jacksonville FL Capital Improvement
    (Gator Bowl Project)
    5.50%, 10/1/19 (2)                                      5,850          5,541
  Jacksonville FL Water & Sewer
    5.00%, 10/1/20 (1)                                      3,000          2,618
  Kissimee FL Utility Auth.
    Electric System
    5.25%, 10/1/18 (3)                                      2,500          2,291
  Lakeland FL Electric & Water
    6.00%, 10/1/14* (3)                                     2,000          2,048
    6.50%, 10/1/09* (3)                                     5,000          5,432
  Lee County FL School Board COP
    6.00%, 8/1/07 (4)                                       5,820          6,097
    6.00%, 8/1/08 (4)                                       6,180          6,434
  Lee County FL
    Transportation Facilities
    5.75%, 10/1/22 (1)                                      4,500          4,375
  Marion County FL Hosp. Dist.
    (Monroe Regional Medical Center)
    6.20%, 10/1/07 (3)                                      1,000          1,063
  Melbourne FL Water & Sewer
    6.375%, 10/1/12 (3)                                     1,000          1,048
  Miami Beach FL Health
    Facilities Auth.
    (Mt. Sinai Medical Center)
    6.125%, 11/15/14 (5)                                    1,250          1,273
    6.25%, 11/15/08 (5)                                     2,000          2,121
  Miami FL GO
    5.90%, 12/1/08 (3)                                      1,000          1,050
    6.00%, 12/1/09 (3)                                      1,380          1,455
  Ocala FL Water & Sewer
    5.50%, 10/1/15* (2)                                     4,550          4,325
    6.00%, 10/1/05* (2)                                     2,565          2,722
    6.00%, 10/1/10 (2)                                      2,435          2,521
</TABLE>





                                       7
<PAGE>   8
                      STATEMENT OF NET ASSETS (continued)

<TABLE>
<CAPTION>
                                                             Face         Market
                                                           Amount          Value
                                                            (000)         (000)+
- --------------------------------------------------------------------------------
<S>                                                      <C>            <C>
  Orange County FL Health
    Auth. Hosp.
    (Adventist for Sunbelt Group)
    5.50%, 11/15/15 (2)                                  $  1,250       $  1,186
    5.75%, 11/15/25 (2)                                     4,000          3,857
    6.25%, 11/15/08 (2)                                     4,570          4,870
    6.25%, 11/15/10 (2)                                     6,015          6,332
  Orange County FL Solid Waste
    6.375%, 10/1/17 (3)                                     3,500          3,610
  Orange County FL
    Tourist Development
    5.90%, 10/1/10 (1)                                      1,250          1,298
    6.50%, 10/1/19 (2)                                      4,000          4,169
  Orlando & Orange County FL
    Expressway Auth.
    5.375%, 7/1/11 (2)                                      5,000          4,832
    6.50%, 7/1/10 (3)                                       2,000          2,194
  Osceola County FL Gas Tax Rev.
    5.90%, 4/1/08 (3)                                       1,805          1,865
  Palm Beach County FL Criminal
    Justice Facility
    5.375%, 6/1/07 (3)                                      5,280          5,321
    5.375%, 6/1/08 (3)                                      2,375          2,377
    5.375%, 6/1/11 (3)                                      1,120          1,095
    7.20%, 6/1/15 (3)                                       3,000          3,518
  Pinellas County FL Health
    Facilities Auth.
    (Morton Plant Hosp.)
    5.25%, 11/15/12 (1)                                     2,705          2,554
  Pinellas County FL Water
    4.50%, 10/1/97 (2)                                      7,185          7,253
  Reedy Creek FL Improvement
    5.00%, 6/1/19 (2)                                       2,000          1,752
  St. Lucie County FL Utility System
    5.50%, 10/1/15 (3) (ETM)                                5,000          4,911
    6.00%, 10/1/20 (3) (ETM)                                3,165          3,251
    6.00%, 9/1/24 (3)                                      11,750         11,717
    6.50%, 10/1/08 (1)(ETM)                                 4,910          5,384
  Sarasota County FL Utility System
    5.75%, 10/1/12 (3)                                      4,325          4,335
    7.00%, 10/1/09 (3)                                      6,260          7,164
  Seacoast FL Utility Auth.
    5.00%, 3/1/19 (3)                                       7,450          6,523
    5.50%, 3/1/10 (3)                                       2,500          2,478
    5.50%, 3/1/17 (3)                                       2,400          2,336
    5.50%, 3/1/19 (3)                                       1,595          1,535
  Seminole County FL School
    Board COP
    6.125%, 7/1/14 (1)                                      1,000          1,020
    6.125%, 7/1/19 (1)                                      2,500          2,525
    6.50%, 7/1/21 (1)                                       2,750          3,040
  Seminole County FL Water &
    Sewer Rev.
    6.00%, 10/1/09 (1)                                      1,800          1,896
    6.00%, 10/1/12 (1)                                      5,000          5,212
    6.00%, 10/1/19 (1)                                      7,500          7,690
  Tamarac FL Water & Sewer Utility
    5.90%, 10/1/11 (3)                                      3,980          4,117
  Tampa FL Water & Sewer
    6.25%, 10/1/02 (3) (Prere.)                             7,395          8,004
    6.25%, 10/1/12 (3)                                      5,805          6,015
  Titusville FL Water & Sewer
    6.00%, 10/1/24 (1)                                      2,500          2,493
  West Palm Beach FL Public
    Service Tax
    6.125%, 3/1/10 (1)                                      1,560          1,597
                                                                        --------
        GROUP TOTAL                                                      395,441
                                                                        --------
- --------------------------------------------------------------------------------
NON-INSURED (15.2%)
  Florida Board of Education
    5.00%, 6/1/12                                           6,000          5,463
    5.50%, 6/1/16                                           9,100          8,676
    6.75%, 4/1/01 (Prere.)                                  2,000          2,195
  Florida State Housing
    Finance Agency
    6.25%, 7/1/11                                           1,855          1,878
    6.35%, 7/1/14                                           2,325          2,350
  Gainesville FL Utility System
    6.50%, 10/1/12                                          1,500          1,638
  Hillsborough County FL IDA
    PCR VRDO
    (Tampa Electric Co.)
    3.60%, 6/4/96                                           1,755          1,755
  Orlando FL Utilities Comm.
    BAN VRDO 3.50%, 6/6/96                                 13,400         13,400
    6.75%, 10/1/17                                         11,700         13,065
  Palm Beach County FL VRDO
    (Norton Gallery of Art)
    3.60%, 6/5/96 LOC                                       3,000          3,000
  St. Lucie County FL PCR VRDO
    (Florida Power & Light)
    3.60%, 6/4/96                                          13,400         13,400
  Tallahassee FL Consolidated
    Utility System
    6.20%, 10/1/19                                          2,000          2,028
                                                                        --------
        GROUP TOTAL                                                       68,848
                                                                        --------
- --------------------------------------------------------------------------------
TOTAL MUNICIPAL BONDS
  (Cost $457,517)                                                        464,289
- --------------------------------------------------------------------------------
</TABLE>





                                       8
<PAGE>   9
<TABLE>
<CAPTION>
                                                                          Market
                                                                           Value
                                                                          (000)+
- --------------------------------------------------------------------------------
<S>                                                                     <C>
OTHER ASSETS AND LIABILITIES (-2.5%)                                            
- --------------------------------------------------------------------------------
  Other Assets--Note B                                                  $  6,751
  Liabilities                                                            (17,886)
                                                                       ---------
                                                                         (11,135)
- --------------------------------------------------------------------------------
NET ASSETS (100%)                                                               
- --------------------------------------------------------------------------------
  Applicable to 42,743,604 outstanding
    shares of beneficial interest
    (unlimited authorization--no par value)                             $453,154
- --------------------------------------------------------------------------------
NET ASSET VALUE PER SHARE                                                 $10.60
================================================================================
</TABLE>

 + See Note A to Financial Statements.

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
AT MAY 31, 1996, NET ASSETS CONSISTED OF:                                       
- --------------------------------------------------------------------------------
                                                           Amount            Per
                                                            (000)          Share
                                                         --------       --------
<S>                                                      <C>              <C>
  PAID IN CAPITAL                                        $451,306         $10.55
  UNDISTRIBUTED NET
    INVESTMENT INCOME                                          --             --
  ACCUMULATED NET
    REALIZED LOSSES                                        (4,774)          (.11)
  UNREALIZED APPRECIATION
    (DEPRECIATION)--NOTE E:
    INVESTMENT SECURITIES                                   6,772            .16
    FUTURES CONTRACTS                                        (150)            --
- --------------------------------------------------------------------------------
NET ASSETS                                               $453,154         $10.60
- --------------------------------------------------------------------------------
</TABLE>

BAN=Bond Anticipation Note
COP=Certificate of Participation
CP=Commercial Paper
GO=General Obligation
IDA=Industrial Development Authority Bond
PCR=Pollution Control Revenue
TOB=Tender Option Bond
VRDO=Variable Rate Demand Obligation
(ETM)=Escrowed to Maturity
(Prere.)=Prerefunded
*Security purchased on a when-issued or delayed delivery basis for which the
 Fund has not taken delivery as of May 31, 1996.

Scheduled principal and interest payments are guaranteed by:
(1) MBIA (Municipal Bond Insurance Association)
(2) AMBAC (AMBAC Indemnity Corporation)
(3) FGIC (Financial Guaranty Insurance Company)
(4) FSA (Financial Security Assurance)
(5) CGI (Capital Guaranty Insurance)
(6) BIGI (Bond Investors Guaranty Insurance)
(7) Connie Lee Inc.
(8) FHA (Federal Housing Authority)
The insurance does not guarantee the market value of the
municipal bonds.

LOC=Scheduled principal and interest payments are guaranteed by
bank letter of credit.





                                       9
<PAGE>   10
                            STATEMENT OF OPERATIONS

<TABLE>
<CAPTION>
                                                                                               Six Months Ended
                                                                                                   May 31, 1996
                                                                                                          (000)
- ---------------------------------------------------------------------------------------------------------------
<S>                                                                                        <C>         <C>
INVESTMENT INCOME
   INCOME
      Interest  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .                        $ 12,065
- ---------------------------------------------------------------------------------------------------------------
               Total Income . . . . . . . . . . . . . . . . . . . . . . . . . .                          12,065
- ---------------------------------------------------------------------------------------------------------------
   EXPENSES
      The Vanguard Group--Note B
         Investment Advisory Services   . . . . . . . . . . . . . . . . . . . .            $  27
         Management and Administrative  . . . . . . . . . . . . . . . . . . . .              365
         Marketing and Distribution . . . . . . . . . . . . . . . . . . . . . .               55            447
                                                                                           -----               
      Custodian Fees  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .                               7
      Auditing Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .                               4
      Shareholders' Reports . . . . . . . . . . . . . . . . . . . . . . . . . .                              12
      Annual Meeting and Proxy Costs  . . . . . . . . . . . . . . . . . . . . .                               2
      Trustees' Fees and Expenses . . . . . . . . . . . . . . . . . . . . . . .                               1
- ---------------------------------------------------------------------------------------------------------------
               Total Expenses . . . . . . . . . . . . . . . . . . . . . . . . .                             473
               Expenses Paid Indirectly--Note C . . . . . . . . . . . . . . . .                              (7)
- --------------------------------------------------------------------------------------------------------------- 
               Net Expenses . . . . . . . . . . . . . . . . . . . . . . . . . .                             466
- ---------------------------------------------------------------------------------------------------------------
                  Net Investment Income . . . . . . . . . . . . . . . . . . . .                          11,599
- ---------------------------------------------------------------------------------------------------------------
REALIZED NET GAIN
      Investment Securities Sold  . . . . . . . . . . . . . . . . . . . . . . .                             217
      Futures Contracts . . . . . . . . . . . . . . . . . . . . . . . . . . . .                             433
- ---------------------------------------------------------------------------------------------------------------
                  Realized Net Gain . . . . . . . . . . . . . . . . . . . . . .                             650
- ---------------------------------------------------------------------------------------------------------------
CHANGE IN UNREALIZED
   APPRECIATION (DEPRECIATION)
      Investment Securities . . . . . . . . . . . . . . . . . . . . . . . . . .                         (16,566)
      Futures Contracts . . . . . . . . . . . . . . . . . . . . . . . . . . . .                           1,205
- ---------------------------------------------------------------------------------------------------------------
                  Change in Unrealized
                     Appreciation (Depreciation)  . . . . . . . . . . . . . . .                         (15,361)
- --------------------------------------------------------------------------------------------------------------- 
                  Net Decrease in Net Assets
                     Resulting from Operations  . . . . . . . . . . . . . . . .                        $ (3,112)
=============================================================================================================== 
</TABLE>





                                       10
<PAGE>   11
                       STATEMENT OF CHANGES IN NET ASSETS

<TABLE>
<CAPTION>
                                                                     SIX MONTHS ENDED           Year Ended
                                                                         MAY 31, 1996    November 30, 1996
                                                                                (000)                (000)
- ----------------------------------------------------------------------------------------------------------
<S>                                                                          <C>                  <C>
INCREASE IN NET ASSETS
OPERATIONS
   Net Investment Income  . . . . . . . . . . . . . . . . . . . .            $ 11,599             $ 19,041
   Realized Net Gain (Loss) . . . . . . . . . . . . . . . . . . .                 650               (5,245)
   Change in Unrealized Appreciation
      (Depreciation)  . . . . . . . . . . . . . . . . . . . . . .             (15,361)              49,211
- ----------------------------------------------------------------------------------------------------------
      Net Increase (Decrease) in Net Assets
         Resulting from Operations  . . . . . . . . . . . . . . .              (3,112)              63,007
- ----------------------------------------------------------------------------------------------------------
DISTRIBUTIONS
   Net Investment Income  . . . . . . . . . . . . . . . . . . . .             (11,599)             (19,041)
   Realized Net Gain  . . . . . . . . . . . . . . . . . . . . . .                  --                   --
- ----------------------------------------------------------------------------------------------------------
      Total Distributions . . . . . . . . . . . . . . . . . . . .             (11,599)             (19,041)
- ---------------------------------------------------------------------------------------------------------- 
CAPITAL SHARE TRANSACTIONS (1)
   Issued . . . . . . . . . . . . . . . . . . . . . . . . . . . .             125,803              178,020
   Issued in Lieu of Cash Distributions . . . . . . . . . . . . .               7,514               12,044
   Redeemed . . . . . . . . . . . . . . . . . . . . . . . . . . .             (88,769)             (94,400)
- ---------------------------------------------------------------------------------------------------------- 
      Net Increase from Capital Share Transactions  . . . . . . .              44,548               95,664
- ----------------------------------------------------------------------------------------------------------
      Total Increase  . . . . . . . . . . . . . . . . . . . . . .              29,837              139,630
- ----------------------------------------------------------------------------------------------------------
NET ASSETS
   Beginning of Period  . . . . . . . . . . . . . . . . . . . . .             423,317              283,687
- ----------------------------------------------------------------------------------------------------------
   End of Period  . . . . . . . . . . . . . . . . . . . . . . . .            $453,154             $423,317
==========================================================================================================
   (1) Shares Issued and Redeemed
       Issued   . . . . . . . . . . . . . . . . . . . . . . . . .              11,503               17,155
       Issued in Lieu of Cash Distributions . . . . . . . . . . .                 693                1,144
       Redeemed   . . . . . . . . . . . . . . . . . . . . . . . .              (8,150)              (9,131)
- ---------------------------------------------------------------------------------------------------------- 
                                                                                4,046                9,168
- ----------------------------------------------------------------------------------------------------------
</TABLE>





                                       11
<PAGE>   12
                              FINANCIAL HIGHLIGHTS
<TABLE>
<CAPTION>
                                                                            Year Ended November 30,  September 1 to
                                                      SIX MONTHS ENDED    ---------------------------  November 30,
For a Share Outstanding Throughout Each Period            May 31, 1996      1995       1994      1993          1992
- -------------------------------------------------------------------------------------------------------------------
<S>                                                             <C>      <C>         <C>      <C>            <C>
NET ASSET VALUE, BEGINNING OF PERIOD  . . . . . . . . . . .     $10.94    $ 9.61     $10.86    $10.16        $10.00
                                                                ------    ------     ------    ------        ------
INVESTMENT OPERATIONS
   Net Investment Income  . . . . . . . . . . . . . . . . .       .275      .560       .550      .537          .122
   Net Realized and Unrealized Gain (Loss)
      on Investments  . . . . . . . . . . . . . . . . . . .      (.340)    1.330     (1.180)     .700          .160
                                                                ------    ------     ------    ------        ------
         TOTAL FROM INVESTMENT OPERATIONS . . . . . . . . .      (.065)    1.890      (.630)    1.237          .282
- -------------------------------------------------------------------------------------------------------------------
DISTRIBUTIONS
   Dividends from Net Investment Income   . . . . . . . . .      (.275)    (.560)     (.550)    (.537)        (.122)
   Distributions from Realized Capital Gains  . . . . . . .         --        --      (.070)       --            --
                                                                ------    ------     ------    ------        ------
         TOTAL DISTRIBUTIONS  . . . . . . . . . . . . . . .      (.275)    (.560)     (.620)    (.537)        (.122)
- ------------------------------------------------------------------------------------------------------------------- 
NET ASSET VALUE, END OF PERIOD  . . . . . . . . . . . . . .     $10.60    $10.94     $ 9.61    $10.86        $10.16
===================================================================================================================
TOTAL RETURN  . . . . . . . . . . . . . . . . . . . . . . .     -0.62%   +20.05%     -6.08%   +12.38%        +2.84%
- -------------------------------------------------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA
- ------------------------
Net Assets, End of Period (Millions)  . . . . . . . . . . .       $453      $423       $284      $269           $63
Ratio of Total Expenses to Average Net Assets . . . . . . .      .21%*      .21%       .22%      .21%         .24%*
Ratio of Net Investment Income to
   Average Net Assets . . . . . . . . . . . . . . . . . . .     5.05%*     5.33%      5.31%     5.01%        5.10%*
Portfolio Turnover Rate . . . . . . . . . . . . . . . . . .       28%*       20%        43%       34%           15%
- -------------------------------------------------------------------------------------------------------------------
</TABLE>

*Annualized.





                                       12
<PAGE>   13
                         NOTES TO FINANCIAL STATEMENTS

Vanguard Florida Insured Tax-Free Fund is registered under the Investment
Company Act of 1940 as an open-end investment company. The Fund invests in
securities of municipal issuers whose ability to meet their obligations may be
affected by economic and political developments in the State of Florida.

A.   The following significant accounting policies are in conformity with
generally accepted accounting principles for investment companies. Such
policies are consistently followed by the Fund in the preparation of financial
statements.

1. SECURITY VALUATION: Municipal bonds are valued utilizing primarily the
   latest bid prices or, if bid prices are not available, on the basis of
   valuations based on a matrix system (which considers such factors as
   security prices, yields, maturities, and ratings), both as furnished by an
   independent pricing service.

2. FEDERAL INCOME TAXES: The Fund intends to continue to qualify as a regulated
   investment company and distribute all of its income.  Accordingly, no
   provision for Federal income taxes is required in the financial statements.

3. FUTURES: The Fund utilizes Municipal Bond Index, U.S. Treasury Bond, and
   U.S. Treasury Note futures contracts to a limited extent, with the
   objectives of enhancing returns, managing interest rate risk, maintaining
   liquidity, diversifying credit risk and minimizing transaction costs. The
   Fund may purchase futures contracts instead of municipal bonds when futures
   contracts are believed to be priced more attractively than municipal bonds.
   The Fund may also seek to take advantage of price differences among bond
   market sectors by simultaneously buying futures (or bonds) of one market
   sector and selling futures (or bonds) of another sector. Futures contracts
   may also be used to simulate a fully invested position in the underlying
   bonds while maintaining a cash balance for liquidity. The primary risks
   associated with the use of futures contracts are imperfect correlation
   between changes in market values of bonds held by the Fund and the prices of
   futures contracts, and the possibility of an illiquid market.  Futures
   contracts are valued based upon their quoted daily settlement prices.
   Fluctuations in the values of futures contracts are recorded as unrealized
   appreciation (depreciation) until terminated at which time realized gains
   (losses) are recognized.  Unrealized appreciation (depreciation) related to
   open futures contracts is required to be treated as realized gain (loss) for
   Federal income tax purposes.

4. DISTRIBUTIONS: Distributions from net investment income are declared on a
   daily basis payable on the first business day of the following month. Annual
   distributions from realized gains, if any, are recorded on the ex-dividend
   date. Capital gain distributions are determined on a tax basis and may
   differ from realized capital gains for financial reporting purposes due to
   differences in the timing of realization of gains.

5. OTHER: Security transactions are accounted for on the date the securities
   are purchased or sold. Costs used in determining realized gains and losses
   on the sale of investment securities are those of specific securities sold.
   Premiums and original issue discounts are amortized and accreted,
   respectively, to interest income over the lives of the respective
   securities.

B.   The Vanguard Group furnishes at cost investment advisory, corporate
management, administrative, marketing, and distribution services. The costs of
such services are allocated to the Fund under methods approved by the Board of
Trustees. At May 31, 1996, the Fund had contributed capital of $47,000 to
Vanguard (included in Other Assets), representing .2% of Vanguard's
capitalization. The Fund's officers and trustees are also officers and
directors of Vanguard.





                                       13
<PAGE>   14
                  NOTES TO FINANCIAL STATEMENTS (continued)

C.   The Fund's custodian bank has agreed to reduce its fees when the Fund
maintains cash on deposit in the non-interest bearing custodian account. For
the six months ended May 31, 1996, custodian fee offset arrangements reduced
expenses of the Fund by $7,000.

D.   During the six months ended May 31, 1996, the Fund made purchases of
$74,772,000 and sales of $57,871,000 of investment securities other than
temporary cash investments.

At November 30, 1995, the Fund had available a capital loss carryforward of
$3,676,000 to offset future net capital gains of $177,000 through November 30,
2002, and $3,499,000 through November 30, 2003.

E.   At May 31, 1996, unrealized appreciation of investment securities for
financial reporting and Federal income tax purposes aggregated $6,772,000 of
which $10,295,000 related to appreciated securities and $3,523,000 related to
depreciated securities.

At May 31, 1996, the aggregate settlement value of open futures contracts
expiring through September 1996 and the related unrealized depreciation were:

<TABLE>
<CAPTION>
- ------------------------------------------------------------------
                                               (000)              
                                  --------------------------------
                                    Aggregate
                                   Settlement          Unrealized
Futures Contracts                     Value           Depreciation
- ------------------------------------------------------------------
<S>                                  <C>                 <C>
LONG U.S. TREASURY BOND              $9,678              $(150)   
- ------------------------------------------------------------------
</TABLE>

The market value of securities deposited as initial margin for open futures
contracts was $1,438,000.





                                       14
<PAGE>   15
                             TRUSTEES AND OFFICERS

JOHN C. BOGLE, Chairman of the Board
Chairman and Director of The Vanguard Group, Inc.,
and of each of the investment companies in The
Vanguard Group.

JOHN J. BRENNAN, President and Chief Executive Officer
President and Director of The Vanguard Group, Inc.,
and of each of the investment companies in The
Vanguard Group.

ROBERT E. CAWTHORN, Chairman of Rhone-Poulenc
Rorer Inc.; Director of Sun Company, Inc.; Director of
Westinghouse Electric Corporation.

BARBARA BARNES HAUPTFUHRER, Director of The Great
Atlantic and Pacific Tea Co., Alco Standard Corp.,
Raytheon Co., Knight-Ridder, Inc., and Massachusetts
Mutual Life Insurance Co.

BURTON G. MALKIEL, Chemical Bank Chairman's
Professor of Economics, Princeton University; Director
of Prudential Insurance Co. of America, Amdahl Corp.,
Baker Fentress & Co., The Jeffrey Co., and Southern
New England Communications Co.

ALFRED M. RANKIN, JR., Chairman, President, and
Chief Executive Officer of NACCO Industries, Inc.;
Director of NACCO Industries, The BFGoodrich Co.,
and The Standard Products Co.

JOHN C. SAWHILL, President and Chief Executive Officer
of The Nature Conservancy; formerly, Director and
Senior Partner of McKinsey & Co. and President of New
York University; Director of Pacific Gas and Electric Co.
and NACCO Industries.

JAMES O. WELCH, JR., Retired Chairman of Nabisco
Brands, Inc.; retired Vice Chairman and Director of RJR
Nabisco; Director of TECO Energy, Inc. and Kmart Corp.

J. LAWRENCE WILSON, Chairman and Chief Executive
Officer of Rohm & Haas Co.; Director of Cummins
Engine Co.; Trustee of Vanderbilt University.


OTHER FUND OFFICERS

RAYMOND J. KLAPINSKY, Secretary; Senior Vice
President and Secretary of The Vanguard Group, Inc.;
Secretary of each of the investment companies in The
Vanguard Group.

RICHARD F. HYLAND, Treasurer; Treasurer of The
Vanguard Group, Inc., and of each of the investment
companies in The Vanguard Group.

KAREN E. WEST, Controller; Vice President of The
Vanguard Group, Inc.; Controller of each of the
investment companies in The Vanguard Group.


OTHER VANGUARD GROUP OFFICERS

ROBERT A. DiSTEFANO            F. WILLIAM McNABB III
Senior Vice President          Senior Vice President
Information Technology         Institutional

JAMES H. GATELY                RALPH K. PACKARD
Senior Vice President          Senior Vice President
Individual Investor Group      Chief Financial Officer

IAN A. MacKINNON
Senior Vice President
Fixed Income Group





                                       15
<PAGE>   16
                          THE VANGUARD FAMILY OF FUNDS


                               FIXED INCOME FUNDS

MONEY MARKET FUNDS
Vanguard Admiral Funds
U.S. Treasury Money
  Market Portfolio
Vanguard Money Market Reserves

TAX-EXEMPT MONEY MARKET FUNDS
Vanguard Municipal Bond Fund
Money Market Portfolio
Vanguard State Tax-Free Funds
Money Market Portfolios
  (CA, NJ, OH, PA)

TAX-EXEMPT INCOME FUNDS
Vanguard Municipal Bond Fund
Vanguard State Tax-Free Funds
Insured Longer-Term Portfolios
  (CA, FL, NJ, NY, OH, PA)

INCOME FUNDS
Vanguard Admiral Funds
Vanguard Fixed Income
 Securities Fund
Vanguard Preferred Stock Fund


                           EQUITY AND BALANCED FUNDS

GROWTH AND INCOME FUNDS
Vanguard Convertible
  Securities Fund
Vanguard Equity Income Fund
Vanguard Quantitative Portfolios
Vanguard Selected Value Portfolio
Vanguard/Trustees' Equity Fund
U.S. Portfolio
Vanguard/Windsor Fund
Vanguard/Windsor II

BALANCED FUNDS
Vanguard Asset Allocation Fund
Vanguard LifeStrategy Funds
Income Portfolio
Conservative Growth Portfolio
Moderate Growth Portfolio
Growth Portfolio
Vanguard STAR Portfolio
Vanguard/Wellesley Income Fund
Vanguard/Wellington Fund

GROWTH FUNDS
Vanguard/Morgan Growth Fund
Vanguard/PRIMECAP Fund
Vanguard U.S. Growth Portfolio

AGGRESSIVE GROWTH FUNDS
Vanguard Explorer Fund
Vanguard Horizon Fund
Global Equity Portfolio
Global Asset Allocation Portfolio
Capital Opportunity Portfolio
Aggressive Growth Portfolio
Vanguard Specialized Portfolios

INTERNATIONAL FUNDS
Vanguard International
  Growth Portfolio
Vanguard/Trustees' Equity Fund
International Portfolio


                                  INDEX FUNDS

Vanguard Index Trust
Total Stock Market Portfolio
500 Portfolio
Extended Market Portfolio
Growth Portfolio
Value Portfolio
Small Capitalization Stock Portfolio
Vanguard International Equity
  Index Fund
European Portfolio
Pacific Portfolio
Emerging Markets Portfolio
Vanguard Bond Index Fund
Vanguard Tax-Managed Fund
Vanguard Balanced Index Fund

                           [THE VANGUARD GROUP LOGO]

         Vanguard Financial Center    Valley Forge, Pennsylvania 19482

          New Account Information:    Shareholder Account Services:
                  1 (800) 662-7447    1 (800) 662-2739

     This Report has been prepared for shareholders and may be distributed
       to others only if preceded or accompanied by a current prospectus.
        All Funds in the Vanguard Family are offered by prospectus only.

                                   Q182-5/96


                                      
                                   VANGUARD
                                   FLORIDA
                                   INSURED
                                TAX-FREE FUND
                                      
                              SEMI-ANNUAL REPORT
                                 MAY 31, 1996


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