WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
MSDW MULTI-STATE MUNICIPAL SERIES TRUST - OHIO
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> SEMI-ANNUAL
<PERIOD-END> NOVEMBER 30, 2000
<INVESTMENTS-AT-COST> MAY 31, 2000
<INVESTMENTS-AT-VALUE> 12,421,614
<RECEIVABLES> 12,127,472
<ASSETS-OTHER> 228,388
<OTHER-ITEMS-ASSETS> 193,840
<TOTAL-ASSETS> 12,549,700
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> (115,120)
<TOTAL-LIABILITIES> (115,120)
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 12,780,756
<SHARES-COMMON-STOCK> 1,228,284
<SHARES-COMMON-PRIOR> 1,524,259
<ACCUMULATED-NII-CURRENT> (20,424)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (31,610)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (294,142)
<NET-ASSETS> 12,434,580
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 399,287
<OTHER-INCOME> 0
<EXPENSES-NET> (78,901)
<NET-INVESTMENT-INCOME> 320,386
<REALIZED-GAINS-CURRENT> 9,873
<APPREC-INCREASE-CURRENT> (1,384,221)
<NET-CHANGE-FROM-OPS> (1,053,962)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (341,252)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 3,921
<NUMBER-OF-SHARES-REDEEMED> 351,328
<SHARES-REINVESTED> 3,123
<NET-CHANGE-IN-ASSETS> (3,140,784)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (41,482)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> (24,865)
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> (78,901)
<AVERAGE-NET-ASSETS> 14,208,850
<PER-SHARE-NAV-BEGIN> 10.27
<PER-SHARE-NII> 0.23
<PER-SHARE-GAIN-APPREC> (0.13)
<PER-SHARE-DIVIDEND> (0.25)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 10.12
<EXPENSE-RATIO> 1.11%
</TABLE>
