<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000912029
<NAME> T. ROWE PRICE SUMMIT MUNICIPAL INCOME FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-2000
<PERIOD-END> APR-30-2000
<INVESTMENTS-AT-COST> 71082
<INVESTMENTS-AT-VALUE> 69400
<RECEIVABLES> 1489
<ASSETS-OTHER> 55
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 70944
<PAYABLE-FOR-SECURITIES> 1814
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 170
<TOTAL-LIABILITIES> 1984
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 73155
<SHARES-COMMON-STOCK> 6996
<SHARES-COMMON-PRIOR> 7340
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (2513)
<ACCUM-APPREC-OR-DEPREC> (1682)
<NET-ASSETS> 68960
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2012
<OTHER-INCOME> 0
<EXPENSES-NET> 175
<NET-INVESTMENT-INCOME> 1837
<REALIZED-GAINS-CURRENT> (1042)
<APPREC-INCREASE-CURRENT> 782
<NET-CHANGE-FROM-OPS> 1577
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1837)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1327
<NUMBER-OF-SHARES-REDEEMED> (1777)
<SHARES-REINVESTED> 106
<NET-CHANGE-IN-ASSETS> (3598)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (1471)
<GROSS-ADVISORY-FEES> 79
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 175
<AVERAGE-NET-ASSETS> 70773
<PER-SHARE-NAV-BEGIN> 9.88
<PER-SHARE-NII> 0.26
<PER-SHARE-GAIN-APPREC> (0.02)
<PER-SHARE-DIVIDEND> (0.26)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.86
<EXPENSE-RATIO> 0.5
</TABLE>
