USAA STATE TAX FREE TRUST
N-30D, 1999-11-24
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Table of Contents

      USAA Family of Funds                                              1
      Message from the President                                        2
      Investment Review:
         USAA Florida Tax-Free Income Fund                              4
         USAA Florida Tax-Free Money Market Fund                       11
         Shareholder Voting Results                                    14
      Financial Information:
         Portfolios of Investments:
            Categories and Definitions                                 15
            USAA Florida Tax-Free Income Fund                          16
            USAA Florida Tax-Free Money Market Fund                    20
         Notes to Portfolios of Investments                            23
         Statements of Assets and Liabilities                          24
         Statements of Operations                                      25
         Statements of Changes in Net Assets                           26
         Notes to Financial Statements                                 27






Important Information

Through  our  ongoing  efforts to reduce  expenses  and  respond to  shareholder
requests, your annual and semiannual report mailings are "streamlined." One copy
of each report is sent to each address,  rather than to every registered  owner.
For many  shareholders  and their families,  this eliminates  duplicate  copies,
saving paper and postage costs to the Fund.

If you are the  primary  shareholder  on at least  one  account,  prefer  not to
participate in streamlining, and would like to continue receiving one report per
registered account owner, you may request this in writing to:

    USAA Investment Management Company
    Attn: Report Mail
    9800 Fredericksburg Road
    San Antonio, TX 78284-8916

or phone a Mutual Fund  Representative at 1-800-531-8448  during business hours.

This  report is for the  information  of the  shareholders  and  others who have
received a copy of the currently effective prospectus of the USAA Florida Funds,
managed by USAA Investment  Management  Company (IMCO).  It may be used as sales
literature only when preceded or accompanied by a current prospectus which gives
further details about the Fund.

USAA  with  the  eagle is  registered  in the U.S.  Patent &  Trademark  Office.
(Copyright)1999, USAA. All rights reserved.





USAA Family of Funds Summary


   Fund                                                 Minimum
 Type/Name                       Volatility           Investment
 ---------                       ----------           ----------

CAPITAL APPRECIATION
================================================================================
Aggressive Growth               Very high               $3,000
Emerging Markets                Very high               $3,000
First Start Growth              Moderate to high        $3,000
Gold                            Very high               $3,000
Growth                          Moderate to high        $3,000
Growth & Income                 Moderate                $3,000
International                   Moderate to high        $3,000
S&P 500(Registered Trademark)
  Index                         Moderate                $3,000
Science & Technology            Very high               $3,000
Small Cap Stock                 Very high               $3,000
World Growth                    Moderate to high        $3,000

ASSET ALLOCATION
================================================================================
Balanced Strategy               Moderate                $3,000
Cornerstone Strategy            Moderate                $3,000
Growth and Tax
  Strategy                      Moderate                $3,000
Growth Strategy                 Moderate to high        $3,000
Income Strategy                 Low to moderate         $3,000

INCOME - TAXABLE
================================================================================
GNMA                            Low to moderate         $3,000
High-Yield
  Opportunities                 High                    $3,000
Income                          Moderate                $3,000
Income Stock                    Moderate                $3,000
Intermediate-Term
  Bond                          Low to moderate         $3,000
Short-Term Bond                 Low                     $3,000

INCOME - TAX EXEMPT
================================================================================
Long-Term                       Moderate                $3,000
Intermediate-Term               Low to moderate         $3,000
Short-Term                      Low                     $3,000
State Bond Income               Moderate                $3,000

MONEY MARKET
================================================================================
Money Market                    Very low                $3,000
Tax Exempt
  Money Market                  Very low                $3,000
Treasury Money
  Market Trust                  Very low                $3,000
State Money Market              Very low                $3,000


Foreign  investing is subject to  additional  risks,  which are discussed in the
funds' prospectuses.

S&P 500(Registered  Trademark) is a trademark of The McGraw-Hill Companies, Inc.
and has been licensed for use. The Product is not sponsored, sold or promoted by
Standard & Poor's,  and Standard & Poor's makes no representation  regarding the
advisability of investing in the Product.

Some income may be subject to state or local  taxes or the  federal  alternative
minimum tax.

An investment in a money market fund is not insured or guaranteed by the FDIC or
any other  government  agency.  Although the fund seeks to preserve the value of
your  investment  at $1 per share,  it is possible to lose money by investing in
the fund.

The Science & Technology Fund may be more volatile than a fund that  diversifies
across many industries.

The  InveStart(Registered  Trademark) program is available for investors without
the $3,000 initial  investment  required to open an IMCO mutual fund account.  A
mutual fund  account can be opened  with no initial  investment  if you elect to
have  monthly  automatic  investments  of at  least  $50  from a  bank  account.
InveStart is not  available on tax-exempt  funds or the S&P 500 Index Fund.  The
minimum  initial  investment  for IRAs is $250,  except for the  $2,000  minimum
required  for the S&P 500 Index  Fund.  IRAs are not  available  for  tax-exempt
funds.  The Growth and Tax Strategy Fund is not  available as an investment  for
your IRA because the majority of its income is tax exempt.

California,  Florida, New York, Texas, and Virginia funds available to residents
only.

Non-deposit investment products are not insured by the FDIC, are not deposits or
other  obligations  of, or guaranteed by, USAA Federal Savings Bank, are subject
to investment risks, and may lose value.

For more complete  information about the mutual funds managed and distributed by
USAA Investment  Management  Company,  including charges and operating expenses,
please  call  1-800-531-8181  for a  prospectus.  Read it  carefully  before you
invest.











Message from the President

FOR AS LONG AS I HAVE MANAGED MONEY
for  customers,  it has been obvious that few things  puzzle or distress them as
much as a falling bond market.  People  generally view bonds as a  risk-lowering
tool.  They add bonds to a portfolio to reduce overall  volatility and to create
an added buffer with the relatively high income. Some people use bond portfolios
as their sole  investment.  Their thinking is that they will live off the income
and not be concerned  about market  values  because they intend to let the bonds
mature. These kinds of strategies were much easier to execute before the days of
fixed-income mutual funds.

Mutual funds did something for bond investors that had never been done before --
show investors  every day what their  portfolio was worth.  In the process,  the
funds  revealed  just  how much  bond  prices  can  move in a day or a week.  No
investor  likes  to see a  portfolio  lose  market  value,  especially  when the
investor  is  thinking  in terms of "low  risk." The latter part of 1998 and the
first three  quarters of 1999 have been a period of  generally  rising  interest
rates,  which has meant falling market  prices.  Let me tell you how we approach
such times.

First, we believe interest-rate  movements are nearly impossible to predict with
both accuracy and consistency.  Second,  we believe that most tax-exempt  income
investors are primarily  interested in a high and stable level of income.  Since
the common way to preserve  market value in a period of rising interest rates is
to switch to money market  investments  at much lower yields,  the importance of
belief one is magnified.  And third, we believe experience going back many years
indicates that the part of a portfolio that is invested in longer maturities may
provide returns that are superior to the money markets.

[PHOTOGRAPH OF PRESIDENT AND VICE CHAIRMAN OF THE BOARD: MICHAEL J.C. ROTH, CFA,
APPEARS HERE]

The chart below shows the one-, five-, and ten-year average annual total returns
for our four national  tax-exempt  funds.  Please bear in mind that there are no
guarantees here -- just as with all mutual funds.




           Average Annual Total Returns as of September 30, 1999
- --------------------------------------------------------------------------------
                                          1 Year     5 Years     10 Years
- --------------------------------------------------------------------------------
USAA Tax Exempt Long-Term Fund            -3.23       6.45         6.93
- --------------------------------------------------------------------------------
USAA Tax Exempt Intermediate-Term Fund    -1.24       6.23         6.88
- --------------------------------------------------------------------------------
USAA Tax Exempt Short-Term Fund            2.06       4.90         5.21
- --------------------------------------------------------------------------------
USAA Tax Exempt Money Market Fund          3.10       3.39         3.67
- --------------------------------------------------------------------------------


Total return equals income plus share price change and assumes  reinvestment  of
all dividends and capital gains distributions.

The performance data quoted represent past performance and are not an indication
of future results.  Investment  return and principal value of an investment will
fluctuate,  and an investor's shares,  when redeemed,  may be worth more or less
than their original cost.

I think the best way to address volatility in bond markets is by allocating some
of your  portfolio  to the  short-term  part of the market.  I believe  that the
pattern of the average  annual total returns shown in the chart above is viable.
So, the  income  part of my  portfolio  is  concentrated  in the USAA Tax Exempt
Long-Term  Fund.  If such a  strategy  leaves you  uncomfortable,  we have other
options.  We'll be  happy  to help you  craft a  portfolio  with  which  you are
comfortable.

Sincerely,

Michael J.C. Roth, CFA
President and
Vice Chairman of the Board

For more complete  information about the mutual funds managed and distributed by
USAA Investment  Management  Company,  including charges and operating expenses,
please call for a prospectus. Read it carefully before investing.

Some income may be subject to state or local  taxes or the  federal  alternative
minimum tax.











Investment Review

USAA FLORIDA TAX-FREE INCOME FUND

OBJECTIVE:  High level of current  interest  income that is exempt from  federal
income  taxes and shares that are exempt from the  Florida  intangible  personal
property tax.

TYPES OF INVESTMENTS: Long-term, investment-grade Florida tax-exempt securities.

- --------------------------------------------------------------------------------
                                                 3/31/99            9/30/99
- --------------------------------------------------------------------------------
  Net Assets                                 $182.0 Million      $177.5 Million
  Net Asset Value Per Share                      $10.02              $9.28
  Tax-Exempt Dividends Per Share
    Last 12 Months                               $.498               $.494
  Capital Gains Distributions Per Share
    Last 12 Months                                  -                  -
- --------------------------------------------------------------------------------
Six-Month Total Return and 30-Day SEC Yield* as of 9/30/99
- --------------------------------------------------------------------------------
            3/31/99 to 9/30/99                    30-Day SEC Yield
                  -4.99%+                               5.25%
- --------------------------------------------------------------------------------

* Calculated as prescribed by the Securities and Exchange Commission.
+ Total  returns  for  periods  of less than one year are not  annualized.  This
  six-month return is cumulative.




              Average Annual Compounded Returns with
    Reinvestment of Dividends - Periods Ending September 30, 1999
- --------------------------------------------------------------------------------
                 Total               Dividend               Price
                Return      Equals    Return      Plus     Change
- --------------------------------------------------------------------------------
Since 10/1/93    4.09%        =        5.33%       +       -1.24%
- --------------------------------------------------------------------------------
5 Years          6.39%        =        5.53%       +         .86%
- --------------------------------------------------------------------------------
1 Year          -4.35%        =        4.67%       +       -9.02%
- --------------------------------------------------------------------------------





              Annual Total Returns and Compounded Dividend Returns
                for the Six-Year Period Ended September 30, 1999

A chart in the form of a bar graph appears here,  illustrating  the Annual Total
Returns and Compounded Dividend Returns of the USAA Florida Tax-Free Income Fund
for the six-year period ended September 30, 1999.

Total Return for Years Ended:
- ----------------------------
09/30/94       -6.68% *
09/30/95        9.67%
09/30/96        7.30%
09/30/97       10.18%
09/30/98        9.89%
09/30/99       -4.35%

**Compounded Dividend Yield for Years Ended:
- -------------------------------------------
09/30/94        4.42% *
09/30/95        6.07%
09/30/96        5.78%
09/30/97        5.79%
09/30/98        5.38%
09/30/99        4.67%

Change in Share Price:
- ---------------------
09/30/94      -11.10% *
09/30/95        3.60%
09/30/96        1.52%
09/30/97        4.39%
09/30/98        4.51%
09/30/99       -9.02%

*  This does not cover a twelve month period.
** Compounded Dividend yield calculation includes only income distributions.









Total  return  equals  dividend  return  plus share  price  change  and  assumes
reinvestment of all dividends and capital gains  distributions.  Dividend return
is the income from dividends  received over the period assuming  reinvestment of
all  dividends.  Share  price  change is the change in net asset  value over the
period adjusted for capital gains distributions. No adjustment has been made for
taxes payable by  shareholders on their  reinvested  dividends and capital gains
distributions.  The performance  data quoted  represent past performance and are
not an indication of future results. Investment return and principal value of an
investment will fluctuate, and an investor's shares, when redeemed, may be worth
more or less than their original cost.







                    12-Month Dividend Yield Comparison

A chart in the form of a bar graph appears here  illustrating  the comparison of
the 12 Month Dividend Yield of the USAA Florida  Tax-Free  Income Fund to the 12
Month  Dividend  Yield of the Lipper  Florida  Municipal Debt Funds Average from
9/30/95 to 9/30/99.

          USAA Florida Tax-Free             Lipper Florida Municipal
           Income Fund Yield                Debt Funds Average Yield
          ---------------------             ------------------------
09/30/95         5.54%                                5.19%
09/30/96         5.54%                                5.03%
09/30/97         5.28%                                4.81%
09/30/98         4.91%                                4.45%
09/30/99         5.32%                                  *


The 12-month dividend yield is computed by dividing income dividends paid during
the  previous 12 months by the latest  month-end  net asset value  adjusted  for
capital  gains  distributions.  The graph  represents  data for  periods  ending
9/30/95 to 9/30/99.

* Information from Lipper Analytical  Services,  Inc. was not available at press
  time.







                 Cumulative Performance Comparison

A chart in the form of a line  graph  appears  here,  comparing  the  cumulative
performance of a $10,000  Investment for the USAA Florida  Tax-Free Income Fund,
Lehman Brothers Municipal Bond Index and the Lipper Florida Municipal Debt Funds
Average. The data points from the graph are as follows:

USAA  Florida Tax-Free Income Fund
Year                  Amount
- --------              -------
10/01/93              $10,000
03/31/94                9,179
09/30/94                9,332
03/31/95                9,822
09/30/95               10,235
03/31/96               10,574
09/30/96               10,982
03/31/97               11,262
09/30/97               12,100
03/31/98               12,639
09/30/98               13,297
03/31/99               13,386
09/30/99               12,718

Lehman Brothers Municipal Bond Index
Year                  Amount
- --------              -------
10/01/93              $10,000
03/31/94                9,584
09/30/94                9,756
03/31/95               10,296
09/30/95               10,847
03/31/96               11,159
09/30/96               11,502
03/31/97               11,767
09/30/97               12,539
03/31/98               13,028
09/30/98               13,632
03/31/99               13,835
09/30/99               13,537

Lipper Florida Municipal Debt Funds Average
Year                  Amount
- --------              -------
10/01/93              $10,000
03/31/94                9,434
09/30/94                9,544
03/31/95               10,080
09/30/95               10,539
03/31/96               10,839
09/30/96               11,163
03/31/97               11,354
09/30/97               12,051
03/31/98               12,511
09/30/98               13,049
03/31/99               13,135
09/30/99               12,694

Data since inception on 10/1/93 through 9/30/99





The broad-based  Lehman Brothers Municipal Bond Index is an unmanaged index that
tracks total return performance for the long-term, investment-grade,  tax-exempt
bond market.  The Lipper  Florida  Municipal  Debt Funds  Average is the average
performance  level of all Florida  municipal  debt funds,  as computed by Lipper
Analytical  Services,  Inc.,  an  independent  organization  that  monitors  the
performance of mutual funds. All tax-exempt bond funds will find it difficult to
outperform the Lehman Index since funds have expenses.









Message from the Manager


[PHOTOGRAPH OF POTFOLIO MANAGER, ROBERT R. PARISEAU, CFA, APPEARS HERE]


A CHANGE IN SENTIMENT SHAKES THE MARKET
Fixed-income  investors were reminded this year that the financial  markets look
to the  future  -- not the  past or even the  present.  Although  most  economic
statistics released this year suggest that inflation is well under control,  the
fixed-income markets are clearly  anticipating higher rates of inflation.  After
all,  reported  inflation  statistics such as the Consumer Price Index (CPI) are
historical numbers -- even though they may be only a month old. Higher inflation
causes  bond  prices to fall  because  inflation  decreases  the value of future
interest payments.

With a seemingly endless American economic expansion that, at times, seems to be
gaining  strength,  a bear market  psychology has taken hold in the fixed-income
markets.  Economists and investors  wonder just how much longer  economic growth
can continue in the United States without causing higher prices.

After  falling  to levels  not seen in years,  some  inflation  indicators  have
increased slightly in 1999. Will inflation continue to rise or will it stabilize
at  slightly  higher  levels  than in 1998?  This  uncertainty  has  shaken  the
confidence of many fixed-income investors. If inflation has stabilized, then the
rise in interest rates is probably closer to the end than the beginning -- given
current economic conditions.

The yield on the 30-year U.S.  Treasury bond (the long bond) has steadily  risen
from 5.625% to 6.05% from March 31 to September 30, 1999.  The yield on the Bond
Buyer 40-Bond Index (BBI40) faired worse. The municipal  market  under-performed
the Treasury  market as the BBI40 began the period at 5.23%,  or 93% of the long
bond,  and  ended at 5.89% on  September  30,  or 97% of the long  bond.





                     Municipal and U.S. Treasury Bond Yields

A chart in the form of a line graph appears here  illustrating the yields of the
30-year U.S. Treasury Bond and the Bond Buyer 40-Bond Index (BBI40) from 3/31/99
to 9/30/99.

               30-year           Bond Buyer
                 U.S.              40-Bond
               Treasury          Index (BBI40)
               --------          -------------
03/31/99          5.63%                5.23%
04/15/99          5.53%                5.21%
04/30/99          5.66%                5.28%
05/14/99          5.92%                5.38%
05/31/99          5.83%                5.37%
06/15/99          6.11%                5.53%
06/30/99          5.96%                5.55%
07/15/99          5.92%                5.50%
07/30/99          6.10%                5.59%
08/16/99          6.09%                5.88%
08/31/99          6.06%                5.78%
09/15/99          6.10%                5.86%
09/30/99          6.05%                5.89%





Note: Past performance is no guarantee of future results.

The 30-year U.S.  Treasury bond is generally  considered  the benchmark for U.S.
long-term  interest rates.

The  Bond  Buyer  40-Bond  Index  is the  industry  standard  for the  yield  of
long-term, investment-grade municipal bonds.









INCOME STRATEGY
I consistently  follow an income  strategy for this Fund similar to that used by
other USAA tax-exempt funds. I focus primarily on generating  maximum tax-exempt
income with the goal of producing the best after-tax  total return over a three-
to  five-year   investment  horizon.  I  remain  fully  invested  in  long-term,
investment-grade  municipal bonds. My primary  justifications  for this strategy
are simple in concept:

   -   I  believe  that a large  number  of our  investors  own the Fund for the
       tax-free  income and  invest  for the long term -- meaning  three to five
       years or more.

   -   Although past performance is no guarantee of future results, the strategy
       has  worked in  different  kinds of  markets  over the  years.  Long-term
       performance, measured by total return, has been well above the peer-group
       average.

Although the Fund has behaved as expected given the increase in interest  rates,
this  year's  total  return   performance  has  been  very   disappointing   and
frustrating. Why does this income strategy produce such apparently contradictory
results -- weak short-term  total return  performance in 1999 but  above-average
performance for long-term total return? Income performance is well above average
in the short and long term.

Of course, in the short run, price change can overwhelm the income  distribution
to create a negative  total return for a given period.  I believe that an income
strategy works because, over time, the vast majority of your total return from a
fixed-income  security  will be from the income.  Price changes tend to even out
over longer investment horizons. Please refer to the table and chart on page 4.

YOUR INVESTMENT HORIZON IS IMPORTANT!
I  consistently  invest  the  Fund in  long-term,  investment-grade,  tax-exempt
municipal securities. Why long-term bonds? Because bonds maturing in 20 years or
longer almost  always yield more than shorter bonds of the same credit  quality.
However,  longer-maturity bonds are more volatile in price than shorter-maturity
bonds. In regard to credit risk, I believe  investment-grade bonds (rated BBB or
higher)  offer the best  risk/reward  compared  to either  junk bonds or insured
bonds.  That's why we encourage only those  investors with a three- to five-year
investment horizon to buy our tax-exempt bond funds.  These long-term  investors
seeking high current income must be willing to assume  moderate  credit risk and
price volatility in return.

A TIME TO REFLECT
Because  interest  rates have risen in 1999,  investors have suffered for owning
any kind of long-maturity bond -- municipals, corporates, or governments. That's
the mathematics of bond investing.  An investor can mitigate, but not eliminate,
the  volatility  risk by investing for the long term.  Although our strategy has
produced  good  results  for  our  investors  in  the  past,  to  guard  against
complacency,   we  are   constantly   examining  and  analyzing  our  investment
strategies.

Is there a better way to invest a tax-exempt  bond fund?  An  alternative  to an
income strategy is to focus on total return.  However,  a total-return  strategy
requires  the  manager  to  successfully  time the  market  cycles by  correctly
forecasting  interest  rates again and again over  extended  periods of time. No
person, to my knowledge, has ever done that.

Enduring a bear  market  like 1999 can be very  unsettling.  It's a good time to
review why you purchased the Fund in the first place:

       -  Are you  most interested in receiving  a high level of interest income
          that is free of federal and state taxes?
       -  Is your investment  horizon long enough to cope with the ups and downs
          of the market?
       -  Do you need  to raise cash? Do you maintain a sufficient cash reserve?
       -  Are you comfortable with the moderate credit risk  of investment-grade
          municipal  bonds?  (Please  review the Portfolio  Ratings Mix chart on
          page 10.)

I view  the  current  environment  as an  opportunity  to  increase  the  Fund's
distribution  yield by buying bonds that offer very  attractive  yields at value
prices.

YOUR FUND'S PERFORMANCE  * * * *
I'm pleased to say that your Fund  received an Overall Star Rating of four stars
in the municipal bond fund category from Morningstar  Rating(Trademark)  for the
period ended  September  30,  1999.  Your Fund's net asset value (NAV) per share
decreased by $0.74, or -7.39%, since March 31, 1999.

While past performance is no guarantee of future results,  the Fund's annualized
dividend  distribution  yield for the past six months was 5.29%.  At press time,
Lipper yield data was not available  for the same time period.  The Fund's total
return was -4.99%,  which lagged the Lipper Florida  Municipal Debt Fund Average
total return of -3.40% for the 58 funds in the category.

Past  performance  is no guarantee of future  results.  Morningstar  proprietary
ratings reflect historical  risk-adjusted  performance as of September 30, 1999.
The  ratings  are  subject  to  change  every  month.  Morningstar  ratings  are
calculated from the Fund's three- and five-year average annual returns in excess
of 90-day  Treasury bill returns with  appropriate  fee  adjustments  and a risk
factor that  reflects Fund  performance  below 90-day  T-bill  returns.  Overall
rating is a weighted average of a fund's three-, five-, and ten-year ratings, as
applicable.  The USAA Florida  Tax-Free  Income Fund received four stars for the
three- and five-year periods,  respectively. The top 10% of the funds in a broad
asset class receive five stars,  the next 22.5% receive four stars, and the next
35% receive  three stars.  The Fund was rated among 1,611 and 1,241 funds in the
municipal bond fund category for the three- and five-year periods, respectively.

Dividend yield is computed by dividing income dividends paid during the previous
six months by the latest  month-end  net asset value  adjusted for capital gains
distributions and annualizing the result.

Total  return   equals  income  return  plus  share  price  change  and  assumes
reinvestment of all dividends and capital gains distributions.


THE STATE OF FLORIDA
Driven by population growth,  Florida's economy continues to grow and diversify.
This year, the economic expansion has moderated,  but nevertheless,  the Florida
economy is expected to outperform the United States as a whole.

Estimated  financial  results for fiscal year 1998-99  appear to be excellent as
the state's general fund revenues grew by 5.0%. This solid  performance  largely
reflects  strong sales tax  receipts,  which  increased  an estimated  6.6% from
fiscal 1997-98.  Reserve levels are quite sound as the state transferred  $100.9
million to the budget  stabilization fund last fiscal year. A sufficient reserve
fund is important due to Florida's  reliance upon cyclical sales tax receipts as
a disproportionate  source of operating  revenues.  Sales tax receipts typically
fall during a recession.

The downside to Florida's  expanding  population base is the resulting budgetary
pressure for social  programs  and  infrastructure  needs.  To fund these needs,
Florida's debt has increased in amount and complexity. Future state borrowing is
anticipated.

Reflecting  strong credit  fundamentals,  Florida maintains high bond ratings of
Aa2, AA+, and AA from Moody's Investors  Service,  Standard & Poor's,  and Fitch
IBCA,  respectively.  I discuss these general economic issues because,  although
they may not directly relate to each of your Fund's  holdings,  they do indicate
the general  financial and economic  environment  of the state.  We will closely
monitor those specific credit issues,  ballot  initiatives,  and litigation that
could potentially impact the value of your holdings.

TAXABLE EQUIVALENT YIELDS
The table below compares the yield of the USAA Florida Tax-Free Income Fund with
a taxable equivalent investment.

                To match the USAA Florida Tax-Free Income Fund's
                     closing 30-day SEC yield of 5.25% and:
- --------------------------------------------------------------------------------
Assuming a marginal federal tax rate of:    15%     28%     31%    36%     39.6%
- --------------------------------------------------------------------------------
Assuming an investor, filing jointly,
with a $300,000 in intangible assets,
a fully taxable investment must pay:       6.18%   7.30%   7.62%   8.21%   8.70%
- --------------------------------------------------------------------------------

This table is based on a hypothetical  investment  calculated  for  illustrative
purposes only. It is not an indication of performance for any of the USAA family
of funds.





Note: Some income may be subject to the federal alternative minimum tax.






                            Portfolio Ratings Mix
                               September 30, 1999

A pie chart is shown here  depicting the Portfolio  Ratings Mix  as of September
30, 1999 of the USAA Florida Tax-Free Income Fund to be:

AAA - 21.1%; AA - 38.2%; A - 21.8%; Cash Equivalents - 2.5%; and BBB - 16.4%.


The four  highest  long-term  credit  ratings,  in  descending  order of  credit
quality,  are AAA,  AA, A, and BBB.  This chart  reflects  the higher  rating of
either Moody's Investors Service, Standard & Poor's Rating Group, or Fitch IBCA.
Unrated  securities  that have been  determined by USAA IMCO to be of equivalent
investment  quality  to  categories  AAA and BBB  account  for 1.3%  and  2.80%,
respectively,  of the Fund's investments,  and are included in their appropriate
category above.

See page 16 for a complete listing of the Portfolio of Investments.









Investment Review


USAA FLORIDA TAX-FREE MONEY MARKET FUND

OBJECTIVE:  High level of current  interest  income that is exempt from  federal
income  taxes and shares that are exempt from the  Florida  intangible  personal
property  tax and a further  objective  of  preserving  capital and  maintaining
liquidity.

TYPES OF INVESTMENTS: High-quality Florida tax-exempt securities with maturities
of 397 days or less. The Fund will maintain a dollar-weighted  average portfolio
maturity of 90 days or less and will  endeavor to maintain a constant  net asset
value per share of $1.00.*

* An  investment in a money market fund is not insured or guaranteed by the FDIC
or any government agency.  Although the Fund seeks to preserve the value of your
investment at $1.00 per share,  it is possible to lose money by investing in the
Fund.

- --------------------------------------------------------------------------------
                                                      3/31/99        9/30/99
- --------------------------------------------------------------------------------
  Net Assets                                      $98.6 Million   $96.4 Million
  Net Asset Value Per Share                           $1.00           $1.00
- --------------------------------------------------------------------------------
Average Annual Total Returns and 7-day Yield as of 9/30/99
- --------------------------------------------------------------------------------
         3/31/99                             Since Inception      7-Day
       to 9/30/99     1 Year     5 Years       on 10/1/93         Yield
         1.49%+        2.89%      3.25%           3.07%           3.44%
- --------------------------------------------------------------------------------

+ Total  returns  for  periods  of less than one year are not  annualized.  This
  six-month return is cumulative.


Total return equals income return and assumes  reinvestment of all dividends and
any capital gains  distributions.  No adjustment has been made for taxes payable
by shareholders on their reinvested  dividends and capital gains  distributions.
Past  performance  is  no  guarantee  of  future  results.  Yields  and  returns
fluctuate.  The 7-day yield quotation more closely  reflects current earnings of
the Fund than the total return quotation.





                           7-Day Yield Comparison

A chart in the form of a line graph appears here  illustrating the comparison of
the 7-day  Yield of the USAA  Florida  Tax-Free  Money  Market  Fund and the IBC
Financial Data,  Inc. State Specific SB (Stock Broker) and GP (General  Purpose)
(Tax-Free) Money Funds.

                      USAA Florida Tax-Free
                        Money Market Fund              IBC Financial Data, Inc.
                      ---------------------            ------------------------
09/29/98                     3.54%                              3.10%
10/27/98                     2.93%                              2.55%
11/24/98                     3.02%                              2.64%
12/29/98                     3.09%                              2.85%
01/26/99                     2.62%                              2.28%
02/22/99                     2.38%                              2.11%
03/29/99                     2.71%                              2.34%
04/26/99                     3.05%                              2.66%
05/31/99                     2.99%                              2.58%
06/28/99                     3.08%                              2.82%
07/26/99                     2.82%                              2.40%
08/30/99                     2.91%                              2.53%
09/27/99                     3.39%                              2.90%

Data represent the last Monday of each month.
Ending date 9/27/99

The graph tracks the Fund's 7-day yield against IBC Financial  Data,  Inc. State
Specific SB (Stock Broker) & GP (General  Purpose)  (Tax-Free)  Money Funds,  an
average of money market fund yields.









Message from the Manager


[PHOTO OF PORTFOLIO MANAGER, REGINA G. SHAFER, CFA, APPEARS HERE]


THE MARKET
Since our last  shareholder  report,  the  national  economy  has  continued  to
strengthen.  Consumer  confidence  has been very high due, in part, to continued
strong employment. In August, national unemployment reached the lowest levels of
the decade -- 4.2%.  This strong economy has caused the Federal Reserve Board to
take  action  in order to keep  inflation  in check.  The  Federal  Open  Market
Committee  has raised the federal  funds rate (the  interest  rate banks  charge
other banks) twice since March -- an increase of .25% in both June and August to
bring the  federal  funds rate to 5.25%.  During this time  period,  the 30-year
Treasury  rate ranged from 5.4% in April to 6.3% in August.  One-year  municipal
note yields have also inched up over the last six months.  According to the Bond
Buyer  One-Year  Note Index,  municipal  notes have risen from a low of 3.05% in
April to a high of 3.70% as of September.

STRATEGY
Instead of trying to determine where interest rates will be in the near term, we
continue  to  focus  on  finding   relative  value.  Our  credit  research  team
contributes to this effort by assessing the  creditworthiness of each issue that
the Fund  purchases.  The Fund's average  maturity of 28 days on September 30 is
shorter than the industry's average maturity of 57. The Fund holds approximately
80% of its assets in issues  whose  rates are reset  daily or  weekly,  with the
belief that this sector  represents the best value at the time. This provides us
the flexibility to selectively move to longer-term investments once those become
more attractive.

PERFORMANCE
For the 12-month  period ending  September 30, 1999,  the USAA Florida  Tax-Free
Money  Market Fund ranked 8 out of 166  state-specific  tax-exempt  money market
funds according to IBC Financial Data, Inc., with a return of 2.89%. The average
return for the category over the same period was 2.52%. Please keep in mind that
past performance is no guarantee of future results.





The Bond  Buyer  One-Year  Note Index is  representative  of yields on ten large
one-year tax-exempt notes.

IBC  Financial  Data,  Inc.  provides  independent  analysis  of  trends  in the
financial services and investing  industries,  with particular  concentration on
money market funds.




FLORIDA
Florida's economic expansion has extended well into 1999, as indicated, in part,
by strong employment. During August, the unemployment level dropped to 3.9%, the
state's lowest level of the decade. This compares favorably to the national rate
of 4.2%. Not  surprisingly,  the State's  financial  position has also benefited
from a strong economy.  State revenues totaled an estimated $17.8 billion during
the  1998-1999  fiscal  year -- 5.0% over the  prior  year.  The  state  expects
continued,  but slower, growth in the future. The adopted 1999-2000 budget, with
$18.5 billion in revenues,  included considerable tax-relief measures related to
the intangibles tax.

A strong  economy  and  solid  financial  performance  have  contributed  to the
financial  strength  of  the  state.  Credit  ratings  on  the  state's  general
obligation  debt are Aa2 by  Moody's  Investors  Service,  AA+ by  Standard  and
Poor's, and AA by Fitch IBCA.



                    Cumulative Performance of $10,000

A chart in the form of a line  graph  appears  here,  comparing  the  cumulative
performance of a $10,000  Investment for the USAA Florida  Tax-Free Money Market
Fund. The data is from 10/1/93 through  9/30/99.  The data points from the graph
are as follows:

USAA  Florida Tax-Free Money Market Fund
Year                  Amount
- --------              -------
10/01/93              $10,000
03/31/94               10,096
09/30/94               10,218
03/31/95               10,384
09/30/95               10,570
03/31/96               10,749
09/30/96               10,923
03/31/97               11,094
09/30/97               11,281
03/31/98               11,464
09/30/98               11,652
03/31/99               11,813
09/30/99               11,988

Data since inception on 10/1/93 through 9/30/99








Past  performance  is no  guarantee  of  future  results,  and the value of your
investment  will vary  according to the Fund's  performance.  Some income may be
subject to federal, state, or local taxes, or to the federal alternative minimum
tax. For 7-day yield  information,  please refer to the Fund's Investment Review
page.





See page 20 for a complete listing of the Portfolio of Investments.








Shareholder Voting Results

On October 15, 1999, a special meeting of  shareholders  was held to vote on the
following  proposals.  All  proposals  were  approved by the  shareholders.  All
shareholders  of  record on  August  19,  1999,  were  entitled  to vote on each
proposal.  The number of votes  shown  below are shown for the entire USAA State
Tax-Free Trust (the Trust) for proposals 1 and 2.

1 Proposal to elect a Board of Trustees as follows:

     TRUSTEES                     VOTES FOR            VOTES WITHHELD
     Robert G. Davis             76,619,692               1,854,365
     Michael J.C. Roth           76,619,692               1,854,365
     David G. Peebles            76,619,692               1,854,365
     Robert L. Mason             76,619,692               1,854,365
     Michael F. Reimherr         76,619,692               1,854,365
     Richard A. Zucker           76,619,692               1,854,365
     Barbara B. Dreeben          76,619,692               1,854,365

John W. Saunders,  Jr. and Howard L. Freeman,  Jr. did not stand for re-election
to the Board. Their term of office will terminate on December 31, 1999.

2 Proposal  to ratify or reject the  selection  by the Board of Trustees of KPMG
LLP as auditors for the Trust for the fiscal year ending March 31, 2000.

                            NUMBER OF SHARES VOTING
- --------------------------------------------------------------------------------
         FOR                     AGAINST                  ABSTAIN
     76,088,944                  942,988                 1,442,125






CATEGORIES & DEFINITIONS
PORTFOLIOS OF INVESTMENTS

September 30, 1999
(Unaudited)





Fixed-Rate  Instruments  - consist of municipal  bonds,  notes,  and  commercial
paper. The interest rate is constant to maturity.  Prior to maturity, the market
price of a fixed-rate  instrument  generally varies inversely to the movement of
interest rates.

Put Bonds - provide the right to sell the bond at face value at specific  tender
dates prior to final maturity.  The put feature shortens the effective  maturity
of the security.

Variable-Rate  Demand Notes (VRDN) - provide the right,  on any business day, to
sell the  security  at face  value on  either  that  day or in seven  days.  The
interest rate is generally  adjusted at a stipulated  daily,  weekly, or monthly
interval to a rate that  reflects  current  market  conditions.  In money market
funds, the effective maturity of these instruments is deemed to be less than 397
days in accordance with regulatory  requirements.  In bond funds,  the effective
maturity is the next put date.

Credit  Enhancements  - add  the  financial  strength  of  the  provider  of the
enhancement to support the issuer's ability to repay the principal when due. The
enhancement may be provided by either a high-quality bank,  insurance company or
other corporation, or a collateral trust.

The USAA Florida Tax-Free Money Market Fund's investments  consist of securities
meeting  the  requirements  to  qualify  as  "eligible   securities"  under  the
Securities and Exchange Commission (SEC) rules applicable to money market funds.
With respect to quality,  "eligible  securities" generally consist of securities
rated in one of the two highest categories for short-term securities, or, if not
rated, of comparable quality, at the time of purchase. The Manager also attempts
to minimize  credit risk in the USAA Florida  Tax-Free Money Market Fund through
rigorous internal credit research.

(PRE)  Prerefunded to a date prior to maturity.
(LOC)  Enhanced by a bank letter of credit.
(LIQ)  Enhanced by a bank liquidity agreement.
(NBGA) Enhanced by a non-bank guarantee agreement.
(INS)  Scheduled principal and interest payments are insured by:
        (1)MBIA, Inc.                        (4) Financial Security Assurance
        (2)AMBAC Financial Group, Inc.            Holdings Ltd.
        (3)Financial Guaranty Insurance Co.  (5) Asset Guaranty Insurance Co.
                                             (6) ACA Financial Guaranty Corp.

PORTFOLIO ABBREVIATIONS AND DESCRIPTIONS
CP     Commercial Paper                 MFH    Multi-Family Housing
GO     General Obligation               PCRB   Pollution Control Revenue Bond
IDA    Industrial Development           RB     Revenue Bond
        Authority/Agency                TAN    Tax Anticipation Note
IDRB   Industrial Development
        Revenue Bond









USAA FLORIDA TAX-FREE INCOME FUND
PORTFOLIO OF INVESTMENTS
(IN THOUSANDS)

September 30, 1999
(Unaudited)

  Principal                                      Coupon       Final       Market
   Amount             Security                    Rate       Maturity     Value
- --------------------------------------------------------------------------------

                        FIXED-RATE INSTRUMENTS (94.3%)

          Florida (87.6%)
$ 3,400   Alachua County Health Facilities
           Auth. RB, Series 1996A (INS)(1)         5.80%    12/01/2026  $  3,388
          Board of Education Capital Outlay
           Bonds,
  3,500    Series 1995B (NBGA)                     5.88      6/01/2020     3,536
  4,000    Series 1997B (NBGA)                     4.50      6/01/2027     3,220
  3,000    Series 1998A (NBGA)                     4.75      6/01/2028     2,523
          Broward County Housing Finance
           Auth. MFH RB,
  1,100    Series 1995A                            7.00      2/01/2025     1,190
  1,000    Series 1997A-1                          6.00      5/01/2032     1,026
  2,000   Cape Canaveral Hospital District
           RB, Series 1998                         5.25      1/01/2028     1,692
          Cape Coral Health Facilities Auth. RB,
  2,000    Series 1997 (INS)(5)                    5.50     10/01/2017     1,922
  2,800    Series 1997 (INS)(5)                    5.63     10/01/2027     2,664
  1,855   Citrus County PCRB, Series 1992B         6.35      2/01/2022     1,948
  1,750   Clearwater Housing Auth. RB,
           Series 1997 (INS)(6)                    5.35      5/01/2024     1,632
  2,000   Collier County Health Facilities
           Auth. RB, Series 1994 (e)               7.00     12/01/2019     2,147
  2,000   Dade County Special Obligation
           Bonds, Series 1995 (PRE)                6.10      4/01/2020     2,171
  7,160   Department of Transportation Right
           of Way GO, Series 1997B (NBGA)          5.00      7/01/2027     6,360
          Duval County Housing Finance Auth.
           MFH RB,
  1,700    Series 1996                             5.90      9/01/2016     1,727
  2,510    Series 1996                             6.00      3/01/2021     2,541
  1,000   Escambia County Housing Finance
           Agency MFH RB, Series 1985              5.63      8/01/2016       993
    700   Gulf County School District Sales
           Tax RB, Series 1997 (INS)(5)            5.75      6/01/2017       700
  2,000   Hillsborough County IDA PCRB,
           Series 1994                             6.25     12/01/2034     2,116
          Housing Finance Agency RB,
  1,425    Series 1994A                            6.35      7/01/2014     1,467
  1,000    Series 1995H (NBGA)                     6.50     11/01/2025     1,039
  1,200   Indian River County Hospital
           District RB, Series 1996 (INS)(4)       5.70     10/01/2015     1,209
  8,820   Jacksonville Health Facilities
           Auth. RB, Series 1997B                  5.25      8/15/2027     7,990
  1,000   Martin County Health Facilities
           Auth. Hospital RB, Series 1997A
           (INS)(1)                                5.25     11/15/2017       945
  1,000   Miami Beach Health Facilities
           Auth. Hospital RB, Series 1992
           (INS)(4)                                6.25     11/15/2019     1,029
 36,000   Miami Dade County Special Obligation
           RB, Series 1997B (INS)(1),(a)           5.65     10/01/2031     5,293
  1,000   Miramar Wastewater Improvement
           Assessment Bonds,
           Series 1994 (PRE) (INS)(3)              6.75     10/01/2025     1,107
  5,000   North Miami Educational Facilities
           RB, Series 1994A (e)                    6.13      4/01/2020     5,031
  2,130   North Miami Health Facilities Auth.
           RB, Series 1996 (LOC)                   6.00      8/15/2024     2,131
          Orange County Health Facilities
           Auth. RB,
  5,750    Series 1995 (e)                         6.75      7/01/2020     6,096
  3,780    Series 1999 (INS)(5)                    5.25      6/01/2029     3,367
  1,000   Orange County Housing Finance Auth.
           RB, Series 1994(B)                      6.40      2/01/2030     1,036
  3,575   Orlando and Orange County Expressway
           Auth. RB, Series 1993                   5.95      7/01/2023     3,581
  4,000   Orlando Utilities Commission RB,
           Series 1993B                            5.25     10/01/2023     3,714
  3,405   Palm Beach County Health Facilities
           Auth. Hospital RB, Series 1993 (PRE)    6.30     10/01/2022     3,682
          Palm Beach County Health Facilities
           Auth. RB,
  4,900    Series 1996                             5.63     11/15/2020     4,584
  2,500    Series 1998                             5.13     11/15/2029     2,098
    625   Palm Beach County Housing Finance
           Auth. RB, Series 1994(B)                6.40      4/01/2014       642
  1,800   Plantation Health Facilities Auth.
           RB, Series 1998                         5.13     12/01/2022     1,541
 12,780   Seminole County Water and Sewer RB,
           Series 1999                             5.38     10/01/2022    12,087
  6,805   St. Johns County IDA Hospital RB,
           Series 1992                             6.00      8/01/2022     6,676
  2,000   St. Johns County IDA RB,
           Series 1997A (INS)(1),(c)               5.50      3/01/2017     1,983
  3,215   Sunrise Special Tax District #1 GO,
           Series 1991 (LOC)                       6.38     11/01/2021     3,378
  1,150   Tallahassee Consolidated Utility
           Systems RB, Series 1994                 6.20     10/01/2019     1,183
  5,000   Tampa Utilities Tax Improvement RB,
           Series 1999A (INS)(4)                   5.20     10/01/2019     4,687
 12,000   Tampa Water and Sewer RB,
           Series 1999 (d)                         5.50     10/01/2029    11,549
  1,300   Turtle Run Community Development
           District RB, Series 1997 (PRE)          6.40      5/01/2011     1,382
          Volusia County Education Facility
           Auth. RB,
  1,500    Series 1996A                            6.13     10/15/2026     1,494
  3,000    Series 1999 (INS)(2)                    5.25      6/01/2029     2,785
  2,000    Series 1999                             5.75     10/15/2029     1,885
  3,000   Volusia County Health Facilities
           Auth. Hospital RB, Series 1996
           (INS)(2)                                5.50     11/15/2026     2,895
          West Orange Healthcare District RB,
  1,790    Series 1999A                            5.50      2/01/2009     1,756
    620    Series 1999A                            5.50      2/01/2010       603

          Guam (0.6%)
  1,000   Government Limited Obligation
           Infrastructure Improvement RB,
           Series 1989A (PRE)                      7.10     11/15/2009     1,024

          Puerto Rico (6.1%)
          Commonwealth GO,
  1,000    Series 1996                             5.40      7/01/2025       946
  2,000    Series 1998                             5.00      7/01/2027     1,764
  5,150   Electric Power Auth. RB, Series 1995Z    5.25      7/01/2021     4,793
  1,000   Highway and Transportation Auth. RB,
           Series 1998A                            5.00      7/01/2038       868
  2,500   Highway Auth. RB, Series Q (PRE)         6.00      7/01/2020     2,547
- --------------------------------------------------------------------------------
          Total fixed-rate instruments (cost: $170,458)                  167,363
- --------------------------------------------------------------------------------

                                PUT BOND (4.2%)
          Florida
  7,055   Duval County Housing Finance Auth. MFH
           RB, Series 1995 (NBGA) (cost: $7,158)   6.75      4/01/2025     7,460
- --------------------------------------------------------------------------------

                      VARIABLE-RATE DEMAND NOTES (2.6%)
          Florida
  4,040   Atlantic Beach Improvement and
           Refunding RB, Series 1994B (LOC)        4.05     10/01/2024     4,040
    525   Hillsborough County IDA PCRB,
           Series 1992                             3.95      5/15/2018       525
- --------------------------------------------------------------------------------
          Total variable-rate demand notes
           (cost: $4,565)                                                  4,565
- --------------------------------------------------------------------------------
          Total investments (cost: $182,181)                            $179,388
================================================================================












                       PORTFOLIO SUMMARY BY CONCENTRATION
                       ----------------------------------

            Hospitals                                           15.9%
            Special Assessment/Tax/Fee                          14.9
            Water/Sewer Utilities - Municipal                   14.0
            Nursing/Continuing Care Centers                     13.8
            Multi-Family Housing                                10.5
            Escrowed Bonds                                       6.7
            Education                                            6.3
            Electric/Gas Utilities - Municipal                   4.8
            Health Care - Miscellaneous                          3.5
            General Obligations                                  3.4
            Electric Utilities                                   2.6
            Toll Roads                                           2.0
            Single-Family Housing                                1.2
            Miscellaneous                                        1.1
            Sales Tax                                             .4
                                                               ------
            Total                                              101.1%
                                                               ======






USAA FLORIDA TAX-FREE MONEY MARKET FUND
PORTFOLIO OF INVESTMENTS
(IN THOUSANDS)

September 30, 1999
(Unaudited)

 Principal                                       Coupon     Final
  Amount             Security                     Rate     Maturity      Value
- --------------------------------------------------------------------------------

                       VARIABLE-RATE DEMAND NOTES (75.7%)
           Florida
$ 3,000   Brevard County Housing Finance Auth.
           MFH RB, Series 1993 (NBGA)              3.85%   7/01/2005     $ 3,000
  1,305   Brevard County Mental Health
           Facilities RB, Series 1994C (LOC)       3.85    1/01/2010       1,305
  1,800   Broward County Education Research
           and Training Auth. IDRB, Series
           1997 (LOC)                              3.85    8/01/2004       1,800
  2,460   Broward County Housing Finance Auth.
           MFH RB, Series 1990 (NBGA)              3.90   10/01/2007       2,460
          Dade County Health Facilities Auth. RB,
 15,735    Series 1990 (LOC)                       4.40    9/01/2020      15,735
  5,700   Series 1995 (LIQ) (INS)(2)               4.05    9/01/2025       5,700
    760   Dade County IDA PCRB, Series 1995        3.95    4/01/2020         760
  9,000   Gulf Breeze Healthcare Facilities RB,
           Series 1999 (NBGA)(c)                   3.92    1/01/2024       9,000
  2,375   Hillsborough County IDA PCRB,
           Series 1992                             3.95    5/15/2018       2,375
          Housing Finance Agency MFH RB,
  1,515    Series 1985C (LOC)                      3.85    8/01/2006       1,515
  7,430    Series 1985EE (LOC)                     3.90    9/01/2008       7,430
  3,305    Series 1990B (NBGA)                     3.90   12/01/2009       3,305
    450    Series 1990D (NBGA)                     3.90   12/01/2009         450
    755   Orange County Health Facilities
           Auth. RB, Series 1998 (LOC)             3.85   11/01/2028         755
  1,890   Sarasota Educational Facilities RB,
           Series 1996 (LOC)                       3.80    2/01/2021       1,890
          St. Petersburg Health Facilities
           Auth. RB,
  3,400    Series 1997 (LOC)                       3.80    7/01/2027       3,400
  5,000    Series 1999 (LOC)                       3.88    1/01/2024       5,000
  3,000   Volusia County Housing Finance Auth.
           RB, Series 1985C (LOC)(b)               4.13    9/01/2005       3,000
  4,150   Wauchula IDA RB, Series 1993 (LOC)       3.75   12/01/2013       4,150
- --------------------------------------------------------------------------------
            Total variable-rate demand notes (cost: $73,030)              73,030
- --------------------------------------------------------------------------------

                                 PUT BOND (2.1%)
          Florida
  2,000   Indian River County Hospital RB,
           Series 1990 (LOC) (cost: $2,000)        3.55   10/01/2024       2,000
- --------------------------------------------------------------------------------

                         FIXED-RATE INSTRUMENTS (21.5%)
          Florida
  1,885   Dade County Health Facilities Auth.
           RB, Series 1989A (PRE)                  7.60    8/01/2024       1,943
    250   Dade County Seaport GO,
           Series 1992 (INS)(2)                    5.50   10/01/1999         250
  1,000   East County Water Control District
           RB, Series 1994 (INS)(5)                5.10   11/01/1999       1,002
  1,800   Halifax Hospital Medical Center TAN,
           Series 1999 (LOC)                       3.50    3/15/2000       1,804
  2,500   Inland Protection Financing Corp.
           Special Obligation Bonds,
           Series 1997 (INS)(4)                    4.50    1/01/2000       2,507
    550   Jacksonville Electric Auth. RB,
           Issue 2 Series 6C                       6.40   10/01/2000         563
  4,200   Jacksonville GO CP Notes                 3.55    1/26/2000       4,200
  4,000   Local Government Finance Commission
           Pooled CP Notes, Series A (LOC)         3.50    2/08/2000       4,000
  2,260   Orlando Utilities Commission Water
           and Electric RB, Series 1989C (PRE)     7.00   10/01/2023       2,305
    500   Palm Beach County Criminal Justice
           Facilities RB, Series 1990 (PRE)        7.25    6/01/2011         522
    500   Pinellas County Resources Recovery
           RB, Series 1990A (INS)(1)               6.50   10/01/1999         500
    600   Public Education Capital Outlay Bonds,
           Series 1994B                            5.63    6/01/2000         609
    500   Sunrise Utility System RB,
           Series 1996 (INS)(2)                    4.38   10/01/1999         500
- --------------------------------------------------------------------------------
          Total fixed-rate instruments (cost: $20,705)                    20,705
- --------------------------------------------------------------------------------
          Total investments (cost: $95,735)                              $95,735
================================================================================














                       PORTFOLIO SUMMARY BY CONCENTRATION
                       ----------------------------------

            Hospitals                                           24.3%
            Multi-Family Housing                                21.9
            Health Care - Miscellaneous                         10.7
            Buildings                                            6.2
            Community Service                                    5.2
            Escrowed Bonds                                       4.9
            General Obligations                                  4.6
            Nursing/Continuing Care Centers                      4.3
            Finance - Municipal                                  4.1
            Electric Utilities                                   3.3
            Special Assessment/Tax/Fee                           3.2
            Education                                            2.0
            Real Estate Tax/Free                                 1.9
            Water/Sewer Utilities - Municipal                    1.6
            Electric/Gas Utilities - Municipal                    .6
            Solid Waste Disposal                                  .5
                                                                ----
            Total                                               99.3%
                                                                ====








NOTES TO PORTFOLIO OF INVESTMENTS

September 30, 1999
(Unaudited)


GENERAL NOTES
Values of securities  are  determined by procedures  and practices  discussed in
note 1 to the financial statements.

The cost of securities for federal income tax purposes is approximately the same
as that reported in the financial statements.

The percentages shown represent the percentage of the investments to net assets.


SPECIFIC NOTES
(a)  Zero-Coupon  security.  Rate  represents  the  effective  yield  at date of
purchase.

(b)  This  security  was  purchased  within  the  terms of a  private  placement
memorandum  and is subject  to a  seven-day  demand  feature.  Under  procedures
adopted by the Board of Trustees,  the adviser has determined that this security
is liquid.  At September  30, 1999,  this security  represents  3.1% of the USAA
Florida Tax-Free Money Market Fund's net assets.

(c) This security is exempt from  registration  under the Securities Act of 1933
and has been determined to be liquid by management.  Any resale of this security
may  occur  in an  exempt  transaction  in  the  United  States  to a  qualified
institutional  buyer as defined by Rule  144A.  At  September  30,  1999,  these
securities  represented 1.1% and 9.3% of the USAA Florida Tax-Free Income Fund's
and USAA Florida Tax-Free Money Market Fund's net assets, respectively.

(d)  At  September   30,   1999,   the  cost  of   securities   purchased  on  a
delayed-delivery  basis  for the USAA  Florida  Tax-Free  Income  Fund was $11.6
million.

(e)  At  September  30,  1999,   these   securities  were  segregated  to  cover
delayed-delivery purchases.



See accompanying notes to financial statements.














STATEMENTS OF ASSETS AND LIABILITIES
(IN THOUSANDS)

September 30, 1999
(Unaudited)






                                                     USAA            USAA
                                                    Florida     Florida Tax-Free
                                                    Tax-Free      Money Market
                                                   Income Fund       Fund
                                                   -----------------------------


ASSETS
   Investments in securities, at market value
      (identified cost of $182,181 and $95,735,
      respectively)                                  $179,388          $95,735
   Cash                                                     7              191
   Receivables:
      Capital shares sold                                  79               78
      Interest                                          3,076              531
      Securities sold                                   7,008               -
                                                     ---------------------------
         Total assets                                 189,558           96,535
                                                     ---------------------------
LIABILITIES
   Securities purchased                                11,577               -
   Capital shares redeemed                                120               84
   USAA Investment Management Company                      52               15
   USAA Transfer Agency Company                             8                6
   Accounts payable and accrued expenses                   20               14
   Dividends on capital shares                            276               15
                                                     ---------------------------
         Total liabilities                             12,053              134
                                                     ---------------------------
            Net assets applicable to capital shares
              outstanding                            $177,505          $96,401
                                                     ===========================

REPRESENTED BY:
   Paid-in capital                                   $184,235          $96,401
   Accumulated net realized loss on investments        (3,937)              -
   Net unrealized depreciation of investments          (2,793)              -
                                                     ---------------------------
            Net assets applicable to capital
              shares outstanding                     $177,505          $96,401
                                                     ===========================
   Capital shares outstanding, unlimited number
      of shares authorized, $.001 par value            19,118           96,401
                                                     ===========================
   Net asset value, redemption price, and offering
      price per share                                $   9.28          $  1.00
                                                     ===========================


See accompanying notes to financial statements.










STATEMENTS OF OPERATIONS
(IN THOUSANDS)

Six-month period ended September 30, 1999
(Unaudited)


                                                     USAA            USAA
                                                    Florida     Florida Tax-Free
                                                    Tax-Free      Money Market
                                                   Income Fund        Fund
                                                   -----------------------------




Net investment income:
   Interest income                                   $  5,078           $1,634
                                                     ---------------------------
   Expenses:
      Management fees                                     324              167
      Transfer agent's fees                                45               35
      Custodian's fees                                     32               23
      Postage                                               3                3
      Shareholder reporting fees                            2                3
      Trustees' fees                                        4                4
      Registration fees                                     3               -
      Professional fees                                    13               13
      Other                                                 1                2
                                                     ---------------------------
         Total expenses before reimbursement              427              250
      Expenses reimbursed                                  -               (13)
                                                     ---------------------------
         Total expenses after reimbursement               427              237
                                                     ---------------------------
            Net investment income                       4,651            1,397
                                                     ---------------------------
Net realized and unrealized loss on investments:
      Net realized loss                                (2,904)              -
      Change in net unrealized appreciation/
        depreciation                                  (11,081)              -
                                                     ---------------------------
            Net realized and unrealized loss          (13,985)              -
                                                     ---------------------------
Increase (decrease) in net assets resulting from
  operations                                         $ (9,334)          $1,397
                                                     ===========================


See accompanying notes to financial statements.







<TABLE>

STATEMENTS OF CHANGES IN NET ASSETS
(IN THOUSANDS)

Six-month  period  ended  September  30,  1999,  and year ended  March 31,  1999
(Unaudited)



<CAPTION>



                                                                   USAA                               USAA
                                                              Florida Tax-Free                  Florida Tax-Free
                                                                Income Fund                     Money Market Fund
                                                        ---------------------------------------------------------------
                                                        9/30/99            3/31/99        9/30/99               3/31/99
                                                        ---------------------------------------------------------------



<S>                                                     <C>               <C>            <C>                 <C>
From operations:
   Net investment income                                $  4,651          $  8,125       $  1,397            $   2,906
   Net realized gain (loss) on investments                (2,904)              373            -                    -
   Change in net unrealized appreciation/
      depreciation of investments                        (11,081)              625            -                    -
                                                        ---------------------------------------------------------------
      Increase (decrease) in net assets
          resulting from operations                       (9,334)            9,123          1,397                2,906
                                                        ---------------------------------------------------------------
Distributions to shareholders from:
   Net investment income                                  (4,651)           (8,125)        (1,397)              (2,906)
                                                        ---------------------------------------------------------------
From capital share transactions:
   Proceeds from shares sold                              25,734            61,581         40,916              182,464
   Dividend reinvestments                                  2,995             5,417          1,311                2,699
   Cost of shares redeemed                               (19,203)          (31,953)       (44,442)            (176,346)
                                                        ---------------------------------------------------------------
      Increase (decrease) in net assets from
         capital share transactions                        9,526            35,045         (2,215)               8,817
                                                        ---------------------------------------------------------------
Net increase (decrease) in net assets                     (4,459)           36,043         (2,215)               8,817
Net assets:
   Beginning of period                                   181,964           145,921         98,616               89,799
                                                        ---------------------------------------------------------------
   End of period                                        $177,505          $181,964       $ 96,401            $  98,616
                                                        ===============================================================
Change in shares outstanding:
   Shares sold                                             2,638             6,133         40,916              182,464
   Shares issued for dividends reinvested                    311               538          1,311                2,699
   Shares redeemed                                        (1,991)           (3,186)       (44,442)            (176,346)
                                                        ---------------------------------------------------------------
      Increase (decrease) in
      shares outstanding                                     958             3,485         (2,215)               8,817
                                                        ===============================================================
</TABLE>


See accompanying notes to financial statements.













NOTES TO FINANCIAL STATEMENTS

September 30, 1999
(Unaudited)


(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
USAA State Tax-Free Trust (the Trust),  registered under the Investment  Company
Act of 1940,  as  amended,  is a  diversified,  open-end  management  investment
company  organized as a Delaware  business  trust  consisting  of four  separate
funds. The information  presented in this semiannual report pertains only to the
USAA Florida  Tax-Free  Income Fund and USAA Florida  Tax-Free Money Market Fund
(the Funds).  The Funds have a common objective of providing  Florida  investors
with a high level of current  interest income that is exempt from federal income
taxes and shares that are exempt from the Florida  intangible  personal property
tax. The USAA  Florida  Tax-Free  Money  Market Fund has a further  objective of
preserving capital and maintaining liquidity.

A. Security valuation - Investments in the USAA Florida Tax-Free Income Fund are
valued each  business  day by a pricing  service (the  Service)  approved by the
Trust's  Board of Trustees.  The Service  uses the mean  between  quoted bid and
asked prices or the last sale price to price  securities  when, in the Service's
judgement,  these prices are readily  available  and are  representative  of the
securities'  market  values.  For many  securities,  such prices are not readily
available.  The Service generally prices these securities based on methods which
include  consideration of yields or prices of municipal securities of comparable
quality,  coupon,  maturity,  and type, indications as to values from dealers in
securities,  and general market  conditions.  Securities which are not valued by
the Service,  and all other assets, are valued in good faith at fair value using
methods determined by the Manager under the general  supervision of the Board of
Trustees.  Securities purchased with maturities of 60 days or less and, pursuant
to Rule  2a-7  under  the  Investment  Company  Act of  1940,  as  amended,  all
securities  in the USAA  Florida  Tax-Free  Money  Market  Fund,  are  stated at
amortized cost which approximates market value.

B. Federal taxes - Each Fund's policy is to comply with the  requirements of the
Internal  Revenue Code  applicable  to  regulated  investment  companies  and to
distribute  substantially all of its income to its shareholders.  Therefore,  no
federal income or excise tax provision is required.

C.  Investments in securities - Security  transactions  are accounted for on the
date the securities are purchased or sold (trade date).  Gain or loss from sales
of investment  securities  is computed on the  identified  cost basis.  Interest
income is recorded  daily on the accrual  basis.  Premiums  and  original  issue
discounts  are  amortized  over the life of the  respective  securities.  Market
discounts are not amortized.  Any ordinary income related to market discounts is
recognized  upon  disposition of the  securities.  The Funds  concentrate  their
investments in Florida municipal securities and therefore may be exposed to more
credit risk than portfolios with a broader geographical diversification.

D. Use of estimates - The preparation of financial statements in conformity with
generally accepted  accounting  principles requires management to make estimates
and  assumptions   that  may  affect  the  reported  amounts  in  the  financial
statements.


(2) LINES OF CREDIT
The Funds participate with other USAA funds in three joint short-term  revolving
loan  agreements  totaling  $850  million,  two with  USAA  Capital  Corporation
(CAPCO),  an affiliate of the Manager ($250  million  committed and $500 million
uncommitted), and one with Bank of America ($100 million committed). The purpose
of the  agreements  is to meet  temporary  or  emergency  cash needs,  including
redemption  requests that might  otherwise  require the untimely  disposition of
securities.  Subject to availability under both agreements with CAPCO, each Fund
may  borrow  from  CAPCO an  amount  up to 5% of its  total  assets  at  CAPCO's
borrowing rate with no markup.  Subject to availability under its agreement with
Bank of America, each Fund may borrow from Bank of America, at Bank of America's
borrowing  rate  plus a markup,  an  amount  which,  when  added to  outstanding
borrowings under the CAPCO agreements,  does not exceed 15% of its total assets.
The Funds had no borrowings under any of these  agreements  during the six-month
period ended September 30, 1999.


(3) DISTRIBUTIONS
Net  investment  income  is  accrued  daily  as  dividends  and  distributed  to
shareholders monthly. Distributions of realized gains from security transactions
not  offset by  capital  losses  are made in the  succeeding  fiscal  year or as
otherwise required to avoid the payment of federal taxes. At September 30, 1999,
the USAA Florida  Tax-Free  Income Fund had capital loss  carryovers for federal
income tax  purposes  of  approximately  $3.9  million  which,  if not offset by
subsequent capital gains, will expire between 2003-2004. It is unlikely that the
Trust's  Board of  Trustees  will  authorize  a  distribution  of capital  gains
realized in the future until the capital loss  carryovers  have been utilized or
expire.


(4) INVESTMENT TRANSACTIONS
Costs of purchases and proceeds  from  sales/maturities  of  securities  for the
six-month period ended September 30, 1999, were as follows:

                            USAA Florida Tax-Free          USAA Florida Tax-Free
                                 Income Fund                Money Market Fund
                                   ($000)                        ($000)
                            ----------------------------------------------------
Purchases                         $61,917                       $129,562
Sales/maturities                  $53,088                       $125,295

For the USAA Florida  Tax-Free Income Fund, costs of purchases and proceeds from
sales/maturities excludes short-term securities.

Gross  unrealized  appreciation and depreciation of investments at September 30,
1999, was as follows:

                               Appreciation        Depreciation           Net
                                  ($000)              ($000)            ($000)
                            ----------------------------------------------------
USAA Florida Tax-Free
   Income Fund                    $3,000             ($5,793)           ($2,793)


(5) TRANSACTIONS WITH MANAGER
A. Management fees - USAA Investment  Management  Company (the Manager)  carries
out  each  Fund's  investment   policies  and  manages  each  Fund's  portfolio.
Management  fees are  computed as a percentage  of aggregate  average net assets
(ANA) of both Funds  combined,  which on an annual basis is equal to .50% of the
first $50  million,  .40% of that  portion  over $50  million  but not over $100
million, and .30% of that portion over $100 million. These fees are allocated on
a proportional basis to each Fund monthly based upon ANA.

The Manager has voluntarily  agreed to limit the annual expenses of each Fund to
 .50% of its average net assets through August 1, 2000.

B. Transfer agent's fees - USAA Transfer Agency Company,  d/b/a USAA Shareholder
Account Services, an affiliate of the Manager,  provides transfer agent services
to the Funds based on an annual  charge of $28.50 per  shareholder  account plus
out-of-pocket expenses.

C.  Underwriting  services - The Manager  provides  exclusive  underwriting  and
distribution  of the Funds'  shares on a  continuing  best  efforts  basis.  The
Manager receives no commissions or fees for this service.


(6) TRANSACTIONS WITH AFFILIATES
Certain trustees and officers of the Funds are also directors,  officers, and/or
employees  of the  Manager.  None of the  affiliated  trustees or Fund  officers
received any compensation from the Funds.


(7) YEAR 2000
Like other mutual funds,  the Funds could be adversely  affected if the computer
systems used by the Manager and the Funds' other service  providers are not able
to perform  their  intended  functions  effectively  after  1999  because of the
inability of computer  software to distinguish the year 2000 from the year 1900.
The Manager has taken steps to address  this  potential  year 2000  problem with
respect  to the  computer  systems  that  it  uses  and to  obtain  satisfactory
assurances  that  comparable  steps are being  taken by the Funds'  other  major
service providers.  At this time, however,  there can be no assurance that these
steps  will be  sufficient  to avoid any  adverse  impact on the Funds from this
problem.






<TABLE>

(8) FINANCIAL HIGHLIGHTS
Per share operating  performance for a share outstanding  throughout each period
is as follows:

USAA FLORIDA TAX-FREE INCOME FUND

<CAPTION>

                                   Six-Month
                                  Period Ended
                                  September 30,                      Year Ended March 31,
                                                -----------------------------------------------------------
                                      1999         1999         1998         1997         1996        1995
                                  -------------------------------------------------------------------------
<S>                               <C>          <C>           <C>           <C>         <C>         <C>
Net asset value at
   beginning of period            $  10.02     $   9.94      $  9.33       $  9.26     $  9.09     $  8.98
Net investment income                  .25          .50          .51           .52         .52         .49
Net realized and
   unrealized gain (loss)             (.74)         .08          .61           .07         .17         .11
Distributions from net
   investment income                  (.25)        (.50)        (.51)         (.52)       (.52)       (.49)
                                  -------------------------------------------------------------------------
Net asset value at
   end of period                  $   9.28     $  10.02      $   9.94      $  9.33     $  9.26     $  9.09
                                  =========================================================================
Total return (%) *                   (4.99)        5.91         12.22         6.51        7.66        7.01
Net assets at end
   of period (000)                $177,505     $181,964      $145,921      $95,483     $69,079     $42,891
Ratio of expenses to
   average net assets (%)              .47(a)       .47           .50          .50         .50         .50
Ratio of expenses to
   average net assets
   excluding
   reimbursements (%)                   -            -            .51          .57         .67         .81
Ratio of net investment
   income to average
   net assets (%)                     5.09(a)      4.96          5.21         5.57        5.52        5.59
Portfolio turnover (%)               29.74        25.28         27.48        44.75       88.20       71.76

(a) Annualized.  The  ratio  is  not  necessarily  indicative  of  12  months of
    operations.
  * Assumes reinvestment of all dividend income distributions during the period.

</TABLE>



<TABLE>

USAA FLORIDA TAX-FREE MONEY MARKET FUND

<CAPTION>

                                 Six-Month
                               Period Ended
                              September 30,                      Year Ended March 31,
                                            -----------------------------------------------------------
                                   1999          1999         1998        1997       1996         1995
                              -------------------------------------------------------------------------
<S>                             <C>           <C>          <C>         <C>         <C>          <C>
Net asset value at
   beginning of period          $  1.00       $  1.00      $  1.00     $  1.00     $  1.00      $  1.00
Net investment income               .01           .03          .03         .03         .03          .03
Distributions from net
   investment income               (.01)         (.03)        (.03)       (.03)       (.03)       (.03)
                              -------------------------------------------------------------------------
Net asset value at
   end of period                $  1.00       $  1.00      $  1.00     $  1.00     $  1.00     $  1.00
                              =========================================================================
Total return (%) *                 1.49          3.05         3.34        3.20        3.51        2.86
Net assets at end
   of period (000)              $96,401       $98,616      $89,799     $87,053     $71,224     $52,225
Ratio of expenses to
   average net assets (%)           .50(a)        .50          .50         .50         .50         .50
Ratio of expenses to
   average net assets
   excluding
   reimbursements (%)               .53(a)        .51          .52         .57         .64         .72
Ratio of net investment
   income to average
   net assets (%)                  2.95(a)       3.00         3.28        3.15        3.45        2.97

(a) Annualized.  The  ratio  is not  necessarily  indicative  of  12  months  of
    operations.
  * Assumes reinvestment of all dividend income distributions during the period.
</TABLE>












TRUSTEES
Robert G. Davis, Chairman of the Board
Michael J.C. Roth, President and Vice Chairman of the Board
John W. Saunders, Jr., Vice President
Barbara B. Dreeben
Howard L. Freeman, Jr.
Robert L. Mason
Richard A. Zucker

INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
USAA Investment Management Company
9800 Fredericksburg Road
San Antonio, Texas  78288

TRANSFER AGENT
USAA Shareholder Account Services
9800 Fredericksburg Road
San Antonio, Texas 78288

LEGAL COUNSEL
Goodwin Procter & Hoar LLP
Exchange Place
Boston, Massachusetts 02109

CUSTODIAN
State Street Bank and Trust Company
P.O. Box 1713
Boston, Massachusetts 02105

INDEPENDENT AUDITORS
KPMG LLP
112 East Pecan, Suite 2400
San Antonio, Texas 78205

Telephone Assistance Hours
Call toll free - Central Time
Monday - Friday 7:00 a.m. to 9:00 p.m.
Saturdays 8:30 a.m. to 5:00 p.m.
Sundays 11:30 a.m. to 8:00 p.m.

Internet Access
www.usaa.com

For Additional Information on Mutual Funds
1-800-531-8181, (in San Antonio) 456-7211
For account servicing, exchanges, or redemptions
1-800-531-8448, (in San Antonio) 456-7202

Recorded Mutual Fund Price Quotes
24-Hour Service (from any phone)
1-800-531-8066, (in San Antonio) 498-8066

Mutual Fund USAA TouchLine (Registered Trademark)
(from Touchtone phones only)
For account balance, last transaction, or fund prices
1-800-531-8777, (in San Antonio) 498-8777



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