WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000353101
<NAME> Federated Short-Term Municipal Trust
<SERIES>
<NUMBER> 012
<NAME> Federated Short-Term Municipal Trust - Institutional Service Shares
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> Jun-30-2000
<PERIOD-END> Jun-30-2000
<INVESTMENTS-AT-COST> 185,728,788
<INVESTMENTS-AT-VALUE> 183,985,151
<RECEIVABLES> 2,763,877
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 83,470
<TOTAL-ASSETS> 186,832,498
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 499,446
<TOTAL-LIABILITIES> 499,446
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 193,205,863
<SHARES-COMMON-STOCK> 1,423,276
<SHARES-COMMON-PRIOR> 1,863,945
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (4,916,824)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (1,955,987)
<NET-ASSETS> 14,281,565
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 9,944,592
<OTHER-INCOME> 0
<EXPENSES-NET> (1,024,638)
<NET-INVESTMENT-INCOME> 8,919,954
<REALIZED-GAINS-CURRENT> (691,348)
<APPREC-INCREASE-CURRENT> (2,742,133)
<NET-CHANGE-FROM-OPS> 5,486,473
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (761,064)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 414,521
<NUMBER-OF-SHARES-REDEEMED> (1,174,199)
<SHARES-REINVESTED> 47,973
<NET-CHANGE-IN-ASSETS> (37,659,970)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (4,225,476)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 836,101
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,807,780
<AVERAGE-NET-ASSETS> 18,883,993
<PER-SHARE-NAV-BEGIN> 10.200
<PER-SHARE-NII> 0.410
<PER-SHARE-GAIN-APPREC> (0.170)
<PER-SHARE-DIVIDEND> 0.000
<PER-SHARE-DISTRIBUTIONS> (0.410)
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 10.030
<EXPENSE-RATIO> 0.72
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>