<PAGE> PAGE 1
000 A000000 06/30/96
000 C000000 0000721303
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 A
001 A000000 DEAN WITTER SELECT MUNICIPAL REINVESTMENT FND
001 B000000 811-3878
001 C000000 2123922550
002 A000000 TWO WORLD TRADE CENTER
002 B000000 NEW YORK
002 C000000 NY
002 D010000 10048
003 000000 N
004 000000 N
005 000000 N
006 000000 N
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007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
008 A000001 DEAN WITTER INTERCAPITAL INC.
008 B000001 A
008 C000001 801-42061
008 D010001 NEW YORK
008 D020001 NY
008 D030001 10048
012 A000001 DEAN WITTER TRUST COMPANY
012 B000001 84-1785
012 C010001 JERSEY CITY
012 C020001 NJ
012 C030001 07302
013 A000001 PRICE WATERHOUSE LLP
013 B010001 NEW YORK
013 B020001 NY
013 B030001 10036
014 A000001 DEAN WITTER REYNOLDS INC.
014 B000001 8-14172
015 A000001 THE BANK OF NEW YORK
015 B000001 C
<PAGE> PAGE 2
015 C010001 NEW YORK
015 C020001 NY
015 C030001 10286
015 E010001 X
018 000000 Y
019 A000000 Y
019 B000000 121
019 C000000 DEANWITTER
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020 C000003 0
020 C000004 0
020 C000005 0
020 C000006 0
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 0
022 A000001 *MORGAN (JP) SECURITIES INC.
022 B000001 13-3224016
022 C000001 12221
022 D000001 13100
022 A000002 *MORGAN STANLEY & CO. INC.
022 B000002 13-2655998
022 C000002 12100
022 D000002 10200
022 A000003 *MERRILL LYNCH PIERCE FEN & SM INC.
022 B000003 13-5674085
022 C000003 1775
022 D000003 2555
022 A000004 *GOLDMAN, SACHS & CO.
022 B000004 13-5108880
022 C000004 1944
022 D000004 2009
022 A000005 *NATIONSBANC CAPITAL MARKETS INC.
022 B000005 56-1684171
022 C000005 0
022 D000005 2308
022 A000006 *LEHMAN BROTHERS INC.
022 B000006 13-2518466
022 C000006 1865
022 D000006 0
022 A000007 *BEAR STERNS INTERNATIONAL
022 B000007 13-3604093
022 C000007 0
022 D000007 929
022 A000008 *MESIROW FINANCIAL
022 B000008 36-3194849
022 C000008 0
022 D000008 885
<PAGE> PAGE 3
022 A000009 *SMITH BARNEY SHEARSON INC.
022 B000009 13-1912900
022 C000009 0
022 D000009 640
022 A000010 *CREWS & ASSOCIATES, INC.
022 B000010 71-0522369
022 C000010 0
022 D000010 260
023 C000000 29905
023 D000000 33109
024 000000 N
025 D000001 0
025 D000002 0
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<PAGE> PAGE 4
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<PAGE> PAGE 5
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<PAGE> PAGE 6
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SIGNATURE SHELDON CURTIS
TITLE VICE PRESIDENT
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
Dean Witter Select Municipal Reinvestment Fund
Semi-Annual NSAR 6/30/96
Financial Data Schedule
</LEGEND>
<CIK> 0000721303
<NAME> DEAN WITTER SELECT MUNI REINVESTMENT FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1996
<PERIOD-END> JUN-30-1996
<INVESTMENTS-AT-COST> 85,027,507
<INVESTMENTS-AT-VALUE> 88,032,909
<RECEIVABLES> 1,502,694
<ASSETS-OTHER> 2,862,365
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 92,397,968
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 232,011
<TOTAL-LIABILITIES> 232,011
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 87,933,807
<SHARES-COMMON-STOCK> 7,686,363
<SHARES-COMMON-PRIOR> 7,629,241
<ACCUMULATED-NII-CURRENT> 25,730
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 1,201,018
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 3,005,402
<NET-ASSETS> 92,165,957
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2,777,261
<OTHER-INCOME> 0
<EXPENSES-NET> 441,310
<NET-INVESTMENT-INCOME> 2,335,951
<REALIZED-GAINS-CURRENT> 1,201,015
<APPREC-INCREASE-CURRENT> (4,924,918)
<NET-CHANGE-FROM-OPS> (1,387,952)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (2,336,208)
<DISTRIBUTIONS-OF-GAINS> (98,283)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 18,407,617
<NUMBER-OF-SHARES-REDEEMED> (19,934,279)
<SHARES-REINVESTED> 2,284,391
<NET-CHANGE-IN-ASSETS> (3,064,714)
<ACCUMULATED-NII-PRIOR> 25,987
<ACCUMULATED-GAINS-PRIOR> 98,286
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 232,056
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 444,513
<AVERAGE-NET-ASSETS> 93,332,396
<PER-SHARE-NAV-BEGIN> 12.48
<PER-SHARE-NII> 0.30
<PER-SHARE-GAIN-APPREC> (0.48)
<PER-SHARE-DIVIDEND> (0.30)
<PER-SHARE-DISTRIBUTIONS> (0.01)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.99
<EXPENSE-RATIO> 0.96
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
