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<PAGE> PAGE 3
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SIGNATURE SHELDON CURTIS
TITLE VICE PRESIDENT
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
DEAN WITTER U.S. GOVERNMENT SECURITIES TRUST
SEMI-ANNUAL FINANCIALS 06-30-95
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1995
<PERIOD-END> JUN-30-1995
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<INVESTMENTS-AT-VALUE> 8,311,341,514
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<OTHER-ITEMS-ASSETS> 0
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<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 17,033,460
<TOTAL-LIABILITIES> 143,070,427
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 9,808,446,725
<SHARES-COMMON-STOCK> 914,271,686
<SHARES-COMMON-PRIOR> 975,890,696
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (4,725)
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<REALIZED-GAINS-CURRENT> (10,896,406)
<APPREC-INCREASE-CURRENT> 574,813,525
<NET-CHANGE-FROM-OPS> 834,170,267
<EQUALIZATION> 0
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<DISTRIBUTIONS-OF-GAINS> 0
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<PER-SHARE-NAV-BEGIN> 8.41
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<PER-SHARE-NAV-END> 9.01
<EXPENSE-RATIO> 1.24
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<AVG-DEBT-PER-SHARE> 0
</TABLE>
