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 Texas Tax-Free Income Fund                                4
         USAA Texas Tax-Free Money Market Fund                         11
         Shareholder Voting Results                                    14
      Financial Information:
         Portfolios of Investments:
            Categories and Definitions                                 15
            USAA Texas Tax-Free Income Fund                            16
            USAA Texas Tax-Free Money Market Fund                      20
         Notes to Portfolios of Investments                            22
         Statements of Assets and Liabilities                          23
         Statements of Operations                                      24
         Statements of Changes in Net Assets                           25
         Notes to Financial Statements                                 26






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 Texas 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.

[Photo of Michael  J.C.  Roth,  CFA;  President  and Vice  Chairman of the Board
appears here]

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.

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 TEXAS TAX-FREE INCOME FUND

OBJECTIVE:  High level of current  interest  income that is exempt from  federal
income taxes.

TYPES OF INVESTMENTS:  Invests  primarily in long-term,  investment-grade  Texas
tax-exempt securities.

- --------------------------------------------------------------------------------
                                                     3/31/99          9/30/99
- --------------------------------------------------------------------------------
  Net Assets                                      $34.8 Million    $37.1 Million
  Net Asset Value Per Share                          $11.07           $10.26
  Tax-Exempt Dividends Per Share Last 12 Months       $.557            $.550
  Capital Gains Distributions Per Share Last
    12 Months                                         $.018            $.034
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
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
                   -4.62%+                              5.27%
- --------------------------------------------------------------------------------

* 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 Return  Equals  Dividend Return   Plus   Price Change
- --------------------------------------------------------------------------------
Since 8/1/94            6.89%        =         5.52%          +        1.37%
- --------------------------------------------------------------------------------
5 Years                 7.44%        =         5.59%          +        1.85%
- --------------------------------------------------------------------------------
1 Year                 -4.38%        =         4.69%          +       -9.07%
- --------------------------------------------------------------------------------



              Annual Total Returns and Compounded Dividend Returns
                for the Five-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 Texas Tax-Free Income Fund
for the five-year period ended September 30, 1999.

Total Return for Years Ended:
- ----------------------------
09/30/95       13.26%
09/30/96        8.56%
09/30/97       10.30%
09/30/98       10.39%
09/30/99       -4.38%

**Compounded Dividend Yield for Years Ended:
- -------------------------------------------
09/30/95        6.21%
09/30/96        5.88%
09/30/97        5.91%
09/30/98        5.46%
09/30/99        4.69%

Change in Share Price:
- ---------------------
09/30/95        7.05%
09/30/96        2.68%
09/30/97        4.39%
09/30/98        4.93%
09/30/99       -9.07%

** 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 Texas  Tax-Free  Income Fund to the 12
Month  Dividend  Yield of the Lipper  Texas  Municipal  Debt Funds  Average from
9/30/95 to 9/30/99.

            USAA Texas Tax-Free              Lipper Texas Municipal
             Income Fund Yield              Debt Funds Average Yield
            -------------------             ------------------------
09/30/95         5.42%                              5.33%
09/30/96         5.48%                              5.05%
09/30/97         5.38%                              4.90%
09/30/98         4.95%                              4.57%
09/30/99         5.36%                                *



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 Texas  Tax-Free  Income Fund,
Lehman  Brothers  Municipal Bond Index and the Lipper Texas Municipal Debt Funds
Average. The data is from 8/1/94 through 9/30/99. The data points from the graph
are as follows:

USAA  Texas Tax-Free Income Fund
Year                  Amount
- ----                  ------
08/01/94              $10,000
09/30/94                9,856
03/31/95               10,575
09/30/95               11,163
03/31/96               11,571
09/30/96               12,118
03/31/97               12,389
09/30/97               13,366
03/31/98               14,087
09/30/98               14,755
03/31/99               14,791
09/30/99               14,108

Lehman Brothers Municipal Bond Index
Year                  Amount
- ----                  ------
08/01/94              $10,000
09/30/94                9,887
03/31/95               10,435
09/30/95               10,993
03/31/96               11,309
09/30/96               11,657
03/31/97               11,925
09/30/97               12,708
03/31/98               13,203
09/30/98               13,816
03/31/99               14,022
09/30/99               13,719

Lipper Texas Municipal Debt Funds Average
Year                  Amount
- ----                  ------
08/01/94              $10,000
09/30/94                9,830
03/31/95               10,392
09/30/95               10,849
03/31/96               11,187
09/30/96               11,509
03/31/97               11,757
09/30/97               12,512
03/31/98               12,991
09/30/98               13,543
03/31/99               13,632
09/30/99               13,081

Data since inception on 8/1/94 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  Texas  Municipal  Debt Funds  Average is the  average
performance  level of all Texas  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





[PHOTO OF THE PORTFOLIO 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 very  pleased to say that your Fund  received an Overall Star Rating of five
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 $0.81, or -7.32%, 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 -4.62%.

THE STATE OF TEXAS
Texas not only has one of the strongest  economies in the nation,  the Lone Star
state ranks as the 11th  largest  economy in the world.  In the past five years,
Texas has added 1.1 million jobs. The state's  economic  fundamentals are strong
due to low business costs,  such as wages and taxes,  substantial  growth of the
high-tech sector,  and favorable  geographic  location for international  trade.
However, a growing  population,  which in 1999 exceeded 20 million for the first
time, will exert pressures on the state for water resources,  roads,  education,
housing, and health care.

In 1999, the state's  unemployment rate declined to its lowest level since 1979.
Although per capita personal income is below the national average, it is inching
upward.  Per capita personal income averaged  $24,957 for 1998, or approximately
95% of the U.S.  average,  compared to $17,288,  or 90% at the  beginning of the
decade.  A  predominantly  young labor force,  an expanding  service sector with
lower-paying jobs, and a border economy adversely influenced by Mexico,  account
for the shortfall.

The state's  financial  position has strengthened  during this extended economic
expansion.  Texas  finished  fiscal year 1998 with a $3.3 billion cash  balance.
Texas has  traditionally  financed  capital  projects on a  pay-as-you-go  basis
keeping debt issuance low. In June, Moody's Investors Service raised the state's
credit  rating on its  general  obligation  debt from Aa2 to Aa1.  Standard  and
Poor's and Fitch IBCA have maintained their state general obligation debt credit
ratings of AA and AA+, 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.

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 Texas Tax-Free Income Fund received four and five 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.


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

             To match the USAA Texas Tax-Free Income Fund's closing
                         30-day SEC yield of 5.27% and:
- --------------------------------------------------------------------------------
  Assuming a marginal federal tax rate of:    15%    28%    31%     36%   39.6%
- --------------------------------------------------------------------------------
  A fully taxable investment must pay:       6.20%  7.32%  7.64%   8.24%  8.73%
- --------------------------------------------------------------------------------

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 Texas Tax-Free Income Fund to be:

AAA - 36%; BB - 0.6%; BBB - 36.3%; AA - 14.9%; A - 10.4%; and Cash Equivalents -
1.8%.

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  0.4%  and  8.7%,
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 TEXAS TAX-FREE MONEY MARKET FUND

OBJECTIVE:  High level of current  interest  income that is exempt from  federal
income  taxes and a further  objective  of  preserving  capital and  maintaining
liquidity.

TYPES OF INVESTMENTS:  High-quality Texas 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                                      $7.5 Million    $7.7 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 8/1/94         Yield
         1.53%+        3.02%      3.30%           3.28%           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  Texas  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 Texas Tax-Free
                      Money Market Fund                IBC Financial Data, Inc.
                      -------------------              ------------------------
09/29/98                     3.58%                              3.10%
10/27/98                     3.16%                              2.55%
11/24/98                     3.15%                              2.64%
12/29/98                     3.40%                              2.85%
01/26/99                     2.80%                              2.28%
02/22/99                     2.68%                              2.11%
03/29/99                     2.88%                              2.34%
04/26/99                     3.17%                              2.66%
05/31/99                     3.06%                              2.58%
06/28/99                     3.23%                              2.82%
07/26/99                     2.91%                              2.40%
08/30/99                     2.97%                              2.53%
09/27/99                     3.40%                              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 THE 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 0.25% 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 3.73% 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  creditworthiness of each issue that the
Fund  purchases.  The Fund's  average  maturity  of 37 days on  September  30 is
shorter than the industry's average maturity of 57 days. The Fund holds over 76%
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.




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




PERFORMANCE
For the 12 months  ending  September  30, 1999,  the USAA Texas  Tax-Free  Money
Market Fund ranked 1 out of 166  state-specific  tax-exempt  money market funds,
according  to IBC  Financial  Data,  Inc.,  with a return of 3.02%.  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.

TEXAS
Texas continues to have one of the strongest economies in the nation. In August,
the state's  unemployment  level dropped to 4.4% -- the lowest level since 1979.
Between  June 1998 and June 1999,  Texas  added  251,000  jobs,  with  growth in
construction,  manufacturing, and the high-technology sectors. Not surprisingly,
the state's financial position has benefited from the strong economy. During the
recently  completed 76th Legislature,  the state approved a $98.1 billion budget
for the 2000-2001  biennium  without  increasing  current tax rates.  The budget
includes  close to $1.3  billion for local  school  districts  for  property tax
relief and teacher pay raises.

A strong  economy  and  solid  financial  performance  have  contributed  to the
financial strength of the state. During June, Moody's Investors Service upgraded
the state's general obligation debt rating to Aa1. The state also has AA and AA+
ratings from both Standard and Poor's and Fitch IBCA, respectively.








                      Cumulative Performance of $10,000

A chart in the form of a line graph  appears here  illustrating  the  cumulative
performance  of a $10,000  investment  of the USAA Texas  Tax-Free  Money Market
Fund. The data is from 8/1/94 to 9/30/99.  The data points from the graph are as
follows:

USAA  Texas Tax-Free Money Market Fund
Year                  Amount
- ----                  ------
08/01/94              $10,000
09/30/94               10,044
03/31/95               10,209
09/30/95               10,392
03/31/96               10,566
09/30/96               10,736
03/31/97               10,906
09/30/97               11,096
03/31/98               11,280
09/30/98               11,468
03/31/99               11,637
09/30/99               11,814

Data since inception on 8/1/94 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.

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 Texas  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 Texas  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.
(NBGA) Enhanced by a non-bank guarantee agreement.
(INS)  Scheduled principal and interest payments are insured by:
       (1)  MBIA, Inc.                       (4) Financial Security
       (2)  AMBAC Financial Group, Inc.            Assurance Holdings Ltd.
       (3)  Financial Guaranty Insurance Co. (5  ACA Financial Guaranty Corp.

PORTFOLIO ABBREVIATIONS AND DESCRIPTIONS
GO     General Obligation              ISD    Independent School District
IDA    Industrial Development          MFH    Multi-Family Housing
         Authority/Agency              PCRB   Pollution Control Revenue Bond
IDC    Industrial Development Corp.    RB     Revenue Bond





<TABLE>


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

September 30, 1999
(Unaudited)

<CAPTION>

  Principal                                              Coupon      Final       Market
    Amount              Security                          Rate      Maturity     Value
- ---------------------------------------------------------------------------------------
   <C>      <S>                                           <C>      <C>          <C>
                         FIXED-RATE INSTRUMENTS (99.5%)

            Texas (96.7%)
   $  200   Austin Community College District RB,
             Series 1995 (PRE)                            6.10%    2/01/2015    $   214
    1,300   Austin Higher Education Auth. RB,
             Series 1998                                  5.25     8/01/2023      1,148
            Bexar Metropolitan Water District RB,
      105    Series 1995 (PRE)                            5.88     5/01/2022        113
      145    Series 1995 (INS)(1)                         5.88     5/01/2022        145
      500   Brazos County Health Facilities RB,
             Series 1993B                                 6.00      1/01/2019       489
    1,025   Brazos River Auth. Revenue Refunding Bonds,
             Series 1999A                                 5.38      4/01/2019       919
    1,000   Canadian River Municipal Water Auth.
             Contract Revenue and Refunding Bonds,
             Series 1999 (INS)(1),(c)                     5.63      2/15/2020       980
    1,000   Cedar Hill ISD GO, Series 1996 (NBGA)(a)      6.30      8/15/2015       397
            Cleburne Tax, Waterworks, and Sewer
             System GO,
    1,595    Series 1998 (INS)(4),(a)                     5.67      2/15/2017       572
    1,330    Series 1998 (INS)(4),(a)                     5.67      2/15/2018       446
      150   Coastal Water Auth. Contract RB,
             Series 1995 (INS)(4)                         5.95     12/15/2025       161
            Columbus Community IDC Sales Tax RB,
      400    Series 1998                                  5.40     11/01/2013       385
      750    Series 1998                                  5.75     11/01/2023       710
    1,500   De Soto Housing Finance Corp. MFH,
             Series 1998A                                 5.25      2/01/2029     1,368
    1,000   Denton County Refunding Permanent
             Improvement Bonds, Series 1999               5.00      7/15/2021       891
      180   Department of Housing and Community
             Affairs RB, Series 1991A                     6.95      7/01/2023       189
      300   Guadalupe-Blanco River Auth. IDC RB,
             Series 1982A                                 6.35      7/01/2022       313
    1,200   Harlingen Consolidated ISD Building Bonds,
             Series 1999 (NBGA)                           5.65      8/15/2029     1,165
    1,250   Harris County Health Facilities
             Development Corp. Special Facilities RB,
             Series 1999A (INS)(4)                        5.20      5/15/2020     1,143
            Harris County Health Facilities RB,
      200    Series 1991A (PRE)                           6.75      2/15/2021       211
      150    Series 1992 (PRE)                            7.13      6/01/2015       163
      400   Harris County IDC RB, Series 1992(d)          6.95      2/01/2022       418
      600   Harrison County Health Facilities
             Development Corp. RB, Series 1998 (INS)(5)   5.50      1/01/2018       562
      100   Health Facilities Development Corp. RB,
             Series 1993B (INS)(1)                        6.38      8/15/2023       104
       65   Housing Agency Single-Family Mortgage RB,
             Series 1991A                                 7.15      9/01/2012        68
    1,900   Houston Higher Education Finance Corp. RB,
             Series 1999A                                 5.38     11/15/2029     1,769
            Houston Water and Sewer System RB,
      150    Series 1992B                                 6.38     12/01/2014       158
      350    Series 1997C (INS)(3)                        5.25     12/01/2022       324
    1,000   Lewisville RB, Series 1998B (INS)(5)          5.80      9/01/2025       976
      500   Lower Neches Valley Auth. IDC RB,
             Series 1997                                  5.80      5/01/2022       499
    1,000   Lubbock Tax and Waterworks System
             Surplus Revenue GO, Series 1999(c)           5.70      2/15/2020       993
      400   Matagorda County Navigation District PCRB,
             Series 1993                                  6.00      7/01/2028       401
    1,500   Mesquite Health Facilities Development
             Corp. RB, Series 1996A(d)                    6.40      2/15/2020     1,503
      500   Midland County Hospital District RB,
             Series 1997 (INS)(2)                         5.38      6/01/2016       476
            North Central Health Facilities
             Development Corp. RB,
      300    Series 1993 (PRE)                            5.90      6/01/2021       318
      400    Series 1996                                  6.30      2/15/2015       401
      500    Series 1998                                  5.38      2/15/2025       433
    1,500   North Harris Montgomery Community
             College District GO, Series 1999 (INS)(2)    5.00      2/15/2021     1,336
            Northeast Hospital Auth. RB,
      400    Series 1993B (PRE)(d)                        7.25      7/01/2022       441
      700    Series 1997 (INS)(4),(d)                     5.63      5/15/2022       674
      800   Orange County Navigation and Port
             District IDC RB, Series 1996(d)              6.38      2/01/2017       823
            Pantego GO,
       60    Series 1994                                  7.75      2/15/2014        65
       65    Series 1994                                  7.75      2/15/2015        70
    1,000   Parker County Hospital District RB,
             Series 1999                                  6.25      8/15/2019       984
            Port of Corpus Christi IDC PCRB,
    1,400    Series 1997A                                 5.45      4/01/2027     1,245
    1,000    Series 1997B                                 5.40      4/01/2018       907
      150   Sabine River Auth. PCRB,
             Series 1992 (INS)(3)                         6.55     10/01/2022       159
            San Antonio Electric and Gas RB,
       15    Series 1992 (PRE)                            5.00      2/01/2017        15
      285    Series 1992                                  5.00      2/01/2017       261
      150   Tarrant County Health Facilities
             Development Corp. RB, Series 1994 (PRE)      6.00      9/01/2024       155
    1,000   Travis County Health Facilities
             Development Corp. RB, Series 1998A(d)        5.13     11/01/2024       894
            Turnpike Auth. Dallas North Tollway RB,
      150    Series 1994 (PRE) (INS)(3)                   6.75      1/01/2015       167
      350    Series 1995 (INS)(3)                         5.25      1/01/2023       323
            Tyler Health Facilities Development
             Corp. Hospital RB,
      260    Series 1993B (East Texas Medical Center)     6.63     11/01/2011       240
      680    Series 1997A (Mother Frances Hospital)       5.63      7/01/2013       636
    3,500   Veteran's Land Board GO, Series 1998(b)       6.20     11/15/2030     3,255
            Water Development Board GO,
       50    Series 1994 (PRE)                            7.00      8/01/2020        55
      150    Series 1994                                  7.00      8/01/2020       164
    1,500    Series 1999A                                 5.50      8/01/2024     1,446
            Puerto Rico (2.8%)
      600   Electric Power Auth. RB, Series 1995Z         5.25      7/01/2021       558
      475   Highway Auth. RB, Series Q (PRE)              6.00      7/01/2020       484
                                                                                -------
            Total fixed-rate instruments (cost: $38,171)                         36,882
                                                                                -------

                        VARIABLE-RATE DEMAND NOTES (1.8%)

            Texas
      545   Nueces River Auth. PCRB,
             Series 1985 (LOC)                            4.00     12/01/1999       545
      130   Port Arthur Navigation District IDC PCRB,
             Series 1985 (LOC)                            4.00      5/01/2003       130
                                                                                -------
            Total variable-rate demand notes (cost: $675)                           675
                                                                                -------
            Total investments (cost: $38,846)                                   $37,557
                                                                                =======
</TABLE>






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

            General Obligations                                 17.7%
            Nursing/Continuing Care Centers                     15.1
            Hospitals                                           13.6
            Education                                            7.9
            Water/Sewer Utilities - Municipal                    7.4
            Escrowed Bonds                                       6.3
            Oil & Gas - Refining/Manufacturing                   5.8
            Electric Utilities                                   4.0
            Multi-Family Housing                                 3.7
            Buildings                                            3.1
            Sales Tax                                            3.0
            Real Estate Tax/Free                                 2.6
            Agricultural Products                                2.2
            Electric/Gas Utilities - Municipal                   2.2
            Aluminum                                             1.5
            Oil - International Integrated                       1.3
            Leasing                                              1.1
            Other                                                2.8
                                                               -----
            Total                                              101.3%
                                                               =====






<TABLE>

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

September 30, 1999
(Unaudited)

<CAPTION>

  Principal                                              Coupon      Final
    Amount              Security                          Rate      Maturity     Value
- --------------------------------------------------------------------------------------
     <C>    <S>                                           <C>      <C>           <C>
                      VARIABLE-RATE DEMAND NOTES (75.8%)
            Texas
     $200   Amarillo Health Facilities Corp. RB,
             Series 1985 (LOC)                            4.00%     5/31/2025    $  200
      485   Arlington IDC RB, Series 1985 (LOC)           4.25     10/01/2020       485
      330   Bell County Health Facilities
             Development Corp. RB, Series 1998 (LOC)      3.90      5/01/2023       330
      300   Bexar County Housing Finance Corp. MFH RB,
             Series 1988B (NBGA)                          3.85      6/01/2005       300
      300   Comal County Health Facilities
             Development Corp. RB, Series 1997 (LOC)      3.90      2/01/2027       300
      365   Garland IDA PCRB, Series 1985                 4.30     12/01/2005       365
      200   Gulf Coast IDA RB, Series 1989 (LOC)          3.85     11/01/2019       200
      350   Gulf Coast Waste Disposal Auth. PCRB,
             Series 1995                                  3.85      6/01/2020       350
      200   Harris County Housing Finance Corp. MFH RB,
             Series 1988A (NBGA)                          3.85      6/01/2005       200
      495   Matagorda County Hospital District RB,
             Series 1988 (LOC)                            4.05      8/01/2018       495
      670   North Central IDA RB, Series 1983             3.95     10/01/2013       670
      330   Nueces River Auth. PCRB,
             Series 1985 (LOC)                            4.00     12/01/1999       330
      355   Port Arthur Navigation District IDC PCRB,
             Series 1985 (LOC)                            4.00      5/01/2003       355
      210   Port Corpus Christi IDC RB,
             Series 1992 (LOC)                            3.90      7/01/2002       210
      200   Port Development Corp. RB,
             Series 1984 (LOC)                            4.00     12/01/2004       200
      615   Tarrant County Housing Finance Corp.
             MFH RB, Series 1985 (LOC)                    3.90     12/01/2025       615
      100   Trinity River IDA RB, Series 1984 (LOC)       3.88     11/01/2014       100
      100   Victoria Health Facilities Development
             Corp. RB, Series 1997 (LOC)                  3.90      9/01/2027       100
                                                                                 ------
            Total variable-rate demand notes (cost: $5,805)                       5,805
                                                                                 ------

                         FIXED-RATE INSTRUMENTS (23.6%)
            Texas
      125   Central College District Building RB,
             Series 1999 (INS)(2)                         4.50      5/15/2000       126
      150   College Station GO, Series 1999 (INS)(4)      3.40      2/15/2000       150
      130   Collin County Community College
             District Consolidated RB,
             Series 1998 (INS)(2)                         4.50      2/01/2000       131
       25   Dallas Waterworks and Sewer Systems RB,
             Series 1991A                                 5.90     10/01/1999        25
      330   Greenville Electric Utility Systems RB,
             Series 1997 (INS)(4)                         4.25      2/15/2000       331
       35   Houston Water and Sewer Systems Junior
             Lien RB, Series 1991C (INS)(2)               5.90     12/01/1999        35
      100   Lewisville Water and Sewer RB,
             Series 1999 (INS)(2)                         4.50      2/15/2000       100
       50   Mesquite GO, Series 1992 (INS)(3)             5.50      2/15/2000        50
       90   Mount Pleasant Utility System RB,
             Series 1999A (INS)(1)                        5.00      3/15/2000        90
       50   Palestine Waterworks Sewer Systems RB,
             Series 1999 (INS)(2)                         6.75      7/15/2000        51
      100   Public Finance Auth. GO, Series 1992A         5.13     10/01/1999       100
      115   Shepherd ISD RB, Series 1996 (NBGA)           6.00      2/15/2000       116
      300   Trinity River IDA RB, Series 1967 (INS)(1)    4.75     10/15/1999       300
      200   Tyler GO, Series 1990 (PRE)                   7.00      8/15/2006       205
                                                                                 ------
            Total fixed-rate instruments (cost: $1,810)                           1,810
                                                                                 ------
            Total investments (cost: $7,615)                                     $7,615
                                                                                 ======
</TABLE>








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

            Multi-Family Housing                                14.6%
            Manufacturing - Diversified Industries              13.5
            Hospitals                                           10.4
            Health Care - Miscellaneous                          8.2
            Water/Sewer Utilities - Municipal                    7.9
            Publishing/Newspapers                                6.3
            General Obligations                                  5.4
            Airport/Port                                         5.2
            Oil & Gas - Exploration & Production                 4.6
            Oil - International Integrated                       4.6
            Electric Utilities                                   4.3
            Aluminum                                             4.3
            Education                                            3.4
            Electrical Equipment                                 2.7
            Escrowed Bonds                                       2.7
            Retail - Specialty                                   1.3
                                                                ----
            Total                                               99.4%
                                                                ====







NOTES TO PORTFOLIOS 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) Illiquid security valued using methods determined by a pricing service under
general  supervision  of the Board of  Directors.  This  security is exempt from
registration  under the  Securities  Act of 1933 and any resale of the  security
must  occur  in an  exempt  transaction  in the  United  States  to a  qualified
institutional  buyer as defined by Rule 144A. For the USAA Texas Tax-Free Income
Fund this security represents 8.8% of the Fund's net assets.

(c)  At  September   30,   1999,   the  cost  of   securities   purchased  on  a
delayed-delivery basis for the USAA Texas Tax-Free Income Fund was $2.0 million.

(d)  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
                                                         Texas    Texas Tax-Free
                                                        Tax-Free   Money Market
                                                      Income Fund      Fund
                                                      --------------------------


ASSETS
   Investments in securities, at market value
      (identified cost of $38,846 and $7,615,
      respectively)                                    $37,557       $7,615
   Cash                                                      4           24
   Receivables:
      Capital shares sold                                   80           12
      Interest                                             605           45
      Securities sold                                      900           -
                                                       --------------------
         Total assets                                   39,146        7,696
                                                       --------------------

LIABILITIES
   Securities purchased                                  1,979           -
   Capital shares redeemed                                   9           26
   USAA Investment Management Company                       33           -
   USAA Transfer Agency Company                              3           -
   Accounts payable and accrued expenses                     4            7
   Dividends on capital shares                              37            1
                                                       --------------------
         Total liabilities                               2,065           34
                                                       --------------------
           Net assets applicable to capital shares
             outstanding                               $37,081       $7,662
                                                       ====================

REPRESENTED BY:
   Paid-in capital                                     $38,784       $7,662
   Accumulated net realized loss on investments           (414)          -
   Net unrealized depreciation of investments           (1,289)          -
                                                       --------------------
            Net assets applicable to capital shares
              outstanding                              $37,081       $7,662
                                                       ====================
   Capital shares outstanding, unlimited number of
      shares authorized, $.001 par value                 3,615        7,662
                                                       ====================
   Net asset value, redemption price, and
      offering price per share                         $ 10.26       $ 1.00
                                                       ====================


See accompanying notes to financial statements.





STATEMENTS OF OPERATIONS
(IN THOUSANDS)

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




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

Net investment income:
   Interest income                                     $ 1,031         $134
                                                       --------------------
   Expenses:
      Management fees                                       92           19
      Transfer agent's fees                                 16            4
      Custodian's fees                                      21            9
      Postage                                                1            -
      Shareholder reporting fees                             1            1
      Trustees' fees                                         4            4
      Registration fees                                      5            -
      Professional fees                                     11           10
      Other                                                  -            1
                                                       --------------------
         Total expenses before reimbursement               151           48
      Expenses reimbursed                                  (59)         (29)
                                                       --------------------
         Total expenses after reimbursement                 92           19
                                                       --------------------
            Net investment income                          939          115
                                                       --------------------
Net realized and unrealized loss on investments:
      Net realized loss                                   (413)           -
      Change in net unrealized appreciation/
        depreciation                                    (2,308)           -
                                                       --------------------
            Net realized and unrealized loss            (2,721)           -
                                                       --------------------
Increase (decrease) in net assets resulting from
  operations                                           $(1,782)        $115
                                                       ====================


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
                                                  Texas Tax-Free            Texas 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                       $   939        $ 1,387     $   115     $   204
   Net realized gain (loss) on investments        (413)           111         -           -
   Change in net unrealized appreciation/
      depreciation of investments               (2,308)          (217)        -           -
                                               -----------------------------------------------
      Increase (decrease) in net assets
          resulting from operations             (1,782)         1,281         115         204
                                               -----------------------------------------------
Distributions to shareholders from:
   Net investment income                          (939)        (1,387)       (115)       (204)
                                               -----------------------------------------------
   Net realized gains                             (111)           (37)        -           -
                                               -----------------------------------------------
From capital share transactions:
   Proceeds from shares sold                     9,919         17,875       6,892      11,241
   Dividend reinvestments                          808          1,120         107         193
   Cost of shares redeemed                      (5,580)        (5,202)     (6,841)     (9,818)
                                               -----------------------------------------------
      Increase in net assets from
         capital share transactions              5,147         13,793         158       1,616
                                               -----------------------------------------------
Net increase in net assets                       2,315         13,650         158       1,616
Net assets:
   Beginning of period                          34,766         21,116       7,504       5,888
                                               -----------------------------------------------
   End of period                               $37,081        $34,766      $7,662     $ 7,504
                                               ===============================================
Change in shares outstanding:
   Shares sold                                     923          1,603       6,892      11,241
   Shares issued for dividends reinvested           75            101         107         193
   Shares redeemed                                (523)          (466)     (6,841)     (9,818)
                                               -----------------------------------------------
      Increase in shares outstanding               475          1,238         158       1,616
                                               ===============================================

</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 Texas  Tax-Free  Income Fund and USAA Texas Tax-Free Money Market Fund (the
Funds).  The Funds have a common  objective of providing  Texas investors with a
high level of current  interest income that is exempt from federal income taxes.
The USAA Texas Tax-Free Money Market Fund has a further  objective of preserving
capital and maintaining liquidity.

A. Security  valuation - Investments in the USAA Texas 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 Texas  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 Texas  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.

(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 Texas Tax-Free          USAA Texas Tax-Free
                                 Income Fund               Money Market Fund
                                   ($000)                        ($000)
                             ------------------------------------------------
Purchases                          $15,241                      $9,734
Sales/maturities                   $10,509                      $9,591

For the USAA Texas  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 Texas Tax-Free
   Income Fund                     $456              ($1,745)         ($1,289)

(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:

<CAPTION>
USAA TEXAS TAX-FREE INCOME FUND

                             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        $ 11.07     $ 11.10      $ 10.38    $ 10.45       $10.21    $10.00
Net investment income             .27         .56          .57        .59          .58       .34
Net realized and
   unrealized gain (loss)        (.78)       (.01)         .82        .13          .36       .21
Distributions from net
   investment income             (.27)       (.56)        (.57)      (.59)        (.58)     (.34)
Distributions of realized
   capital gains                 (.03)       (.02)        (.10)      (.20)        (.12)       -
                            -----------------------------------------------------------------------
Net asset value at
   end of period              $ 10.26     $ 11.07      $ 11.10    $ 10.38       $10.45    $10.21
                            =======================================================================
Total return (%) *              (4.62)       5.00        13.71       7.06         9.42      5.75
Net assets at end
   of period (000)            $37,081     $34,766      $21,116    $11,206       $8,053    $6,446
Ratio of expenses to
   average net assets (%)         .50(a)      .50          .50        .50          .50       .50(a)
Ratio of expenses to
   average net
   assets excluding
   reimbursements (%)             .82(a)      .87          .98       1.35         1.66      2.40(a)
Ratio of net investment
   income to average
   net assets (%)                5.11(a)     5.00         5.27       5.63         5.51      5.56(a)
Portfolio turnover (%)          29.39       55.83        56.29      86.17        71.14     49.63
</TABLE>

(a)  Annualized.  The  ratio  is not  necessarily  indicative  of 12  months  of
     operations.
  *  Assumes reinvestment of all dividend income and capital gains distributions
     during the period.
 **  Fund commenced operations August 1, 1994.






<TABLE>

Per share operating  performance for a share outstanding  throughout each period
is as follows:

<CAPTION>
USAA TEXAS TAX-FREE MONEY MARKET FUND

                              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            .02            .03         .03       .03          .03      .02
Distributions from net
   investment income            (.02)          (.03)       (.03)     (.03)        (.03)    (.02)
                            ----------------------------------------------------------------------
Net asset value at
   end of period              $ 1.00         $ 1.00      $ 1.00    $ 1.00       $ 1.00   $ 1.00
                            ======================================================================
Total return (%) *              1.53           3.16        3.43      3.22         3.49     2.09
Net assets at end
   of period (000)            $7,662         $7,504      $5,888    $5,280       $4,695   $3,881
Ratio of expenses to
   average net assets (%)        .50(a)         .50         .50       .50          .50      .50(a)
Ratio of expenses to
   average net
   assets excluding
   reimbursements (%)           1.28(a)        1.33        1.37      1.77         2.02     2.63(a)
Ratio of net investment
   income to average
   net assets (%)               3.04(a)        3.10        3.38      3.17         3.42     3.18(a)
</TABLE>

(a)  Annualized.  The  ratio  is not  necessarily  indicative  of 12  months  of
     operations.
  *  Assumes  reinvestment  of  all dividend  income  distributions  during  the
     period.
 **  Fund commenced operations August 1, 1994.










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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