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SIGNATURE IRVING DAVID
TITLE CONTROLLER
[ARTICLE] 6
[CIK] 0000320282
[NAME] SMITH BARNEY MUNI MONEY MRKT FD, INC - CLASSA
<TABLE>
<S> <C>
[PERIOD-TYPE] 12-MOS
[FISCAL-YEAR-END] MAR-31-1996
[PERIOD-END] MAR-31-1996
[INVESTMENTS-AT-COST] 5,508,827,790
[INVESTMENTS-AT-VALUE] 5,508,827,790
[RECEIVABLES] 71,310,196
[ASSETS-OTHER] 375,826
[OTHER-ITEMS-ASSETS] 0
[TOTAL-ASSETS] 5,580,513,812
[PAYABLE-FOR-SECURITIES] 128,723,605
[SENIOR-LONG-TERM-DEBT] 0
[OTHER-ITEMS-LIABILITIES] 38,436,578
[TOTAL-LIABILITIES] 167,160,183
[SENIOR-EQUITY] 0
[PAID-IN-CAPITAL-COMMON] 5,414,646,050
[SHARES-COMMON-STOCK] 5,396,434,094
[SHARES-COMMON-PRIOR] 4,652,367,369
[ACCUMULATED-NII-CURRENT] 0
[OVERDISTRIBUTION-NII] 0
[ACCUMULATED-NET-GAINS] 0
[OVERDISTRIBUTION-GAINS] 0
[ACCUM-APPREC-OR-DEPREC] 0
[NET-ASSETS] 5,413,353,629
[DIVIDEND-INCOME] 0
[INTEREST-INCOME] 197,987,693
[OTHER-INCOME] 0
[EXPENSES-NET] 31,794,018
[NET-INVESTMENT-INCOME] 166,193,675
[REALIZED-GAINS-CURRENT] 182,322
[APPREC-INCREASE-CURRENT] 0
[NET-CHANGE-FROM-OPS] 166,375,997
[EQUALIZATION] 0
[DISTRIBUTIONS-OF-INCOME] 166,193,675
[DISTRIBUTIONS-OF-GAINS] 0
[DISTRIBUTIONS-OTHER] 0
[NUMBER-OF-SHARES-SOLD] 23,778,520,460
[NUMBER-OF-SHARES-REDEEMED] 23,195,899,521
[SHARES-REINVESTED] 161,445,786
[NET-CHANGE-IN-ASSETS] 761,287,251
[ACCUMULATED-NII-PRIOR] 0
[ACCUMULATED-GAINS-PRIOR] 0
[OVERDISTRIB-NII-PRIOR] 0
[OVERDIST-NET-GAINS-PRIOR] 0
[GROSS-ADVISORY-FEES] 24,738,969
[INTEREST-EXPENSE] 0
[GROSS-EXPENSE] 32,520,699
[AVERAGE-NET-ASSETS] 5,068,300,834
[PER-SHARE-NAV-BEGIN] 1.00
[PER-SHARE-NII] 0.033
[PER-SHARE-GAIN-APPREC] 0
[PER-SHARE-DIVIDEND] 0.033
[PER-SHARE-DISTRIBUTIONS] 0
[RETURNS-OF-CAPITAL] 0
[PER-SHARE-NAV-END] 1.00
[EXPENSE-RATIO] 0.63
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
[ARTICLE] 6
[CIK] 0000320282
[NAME] SMITH BARNEY MUNI MONEY MRKT FD, INC - CLASSC
<TABLE>
<S> <C>
[PERIOD-TYPE] 12-MOS
[FISCAL-YEAR-END] MAR-31-1996
[PERIOD-END] MAR-31-1996
[INVESTMENTS-AT-COST] 5,508,827,790
[INVESTMENTS-AT-VALUE] 5,508,827,790
[RECEIVABLES] 71,310,196
[ASSETS-OTHER] 375,826
[OTHER-ITEMS-ASSETS] 0
[TOTAL-ASSETS] 5,580,513,812
[PAYABLE-FOR-SECURITIES] 128,723,605
[SENIOR-LONG-TERM-DEBT] 0
[OTHER-ITEMS-LIABILITIES] 38,436,578
[TOTAL-LIABILITIES] 167,160,183
[SENIOR-EQUITY] 0
[PAID-IN-CAPITAL-COMMON] 5,414,646,050
[SHARES-COMMON-STOCK] 43,858
[SHARES-COMMON-PRIOR] 814,760
[ACCUMULATED-NII-CURRENT] 0
[OVERDISTRIBUTION-NII] 0
[ACCUMULATED-NET-GAINS] 0
[OVERDISTRIBUTION-GAINS] 0
[ACCUM-APPREC-OR-DEPREC] 0
[NET-ASSETS] 5,413,353,629
[DIVIDEND-INCOME] 0
[INTEREST-INCOME] 197,987,693
[OTHER-INCOME] 0
[EXPENSES-NET] 31,794,018
[NET-INVESTMENT-INCOME] 166,193,675
[REALIZED-GAINS-CURRENT] 182,322
[APPREC-INCREASE-CURRENT] 0
[NET-CHANGE-FROM-OPS] 166,375,997
[EQUALIZATION] 0
[DISTRIBUTIONS-OF-INCOME] 166,193,675
[DISTRIBUTIONS-OF-GAINS] 0
[DISTRIBUTIONS-OTHER] 0
[NUMBER-OF-SHARES-SOLD] 3,399,290
[NUMBER-OF-SHARES-REDEEMED] 4,180,812
[SHARES-REINVESTED] 10,620
[NET-CHANGE-IN-ASSETS] 761,287,251
[ACCUMULATED-NII-PRIOR] 0
[ACCUMULATED-GAINS-PRIOR] 0
[OVERDISTRIB-NII-PRIOR] 0
[OVERDIST-NET-GAINS-PRIOR] 0
[GROSS-ADVISORY-FEES] 24,738,969
[INTEREST-EXPENSE] 0
[GROSS-EXPENSE] 32,520,699
[AVERAGE-NET-ASSETS] 306,010
[PER-SHARE-NAV-BEGIN] 1.00
[PER-SHARE-NII] 0.033
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[PER-SHARE-DIVIDEND] 0.033
[PER-SHARE-DISTRIBUTIONS] 0
[RETURNS-OF-CAPITAL] 0
[PER-SHARE-NAV-END] 1.00
[EXPENSE-RATIO] 0.60
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
[ARTICLE] 6
[CIK] 0000320282
[NAME] SMITH BARNEY MUNI MONEY MRKT FD, INC - CLASSY
<TABLE>
<S> <C>
[PERIOD-TYPE] 12-MOS
[FISCAL-YEAR-END] MAR-31-1996
[PERIOD-END] MAR-31-1996
[INVESTMENTS-AT-COST] 5,508,827,790
[INVESTMENTS-AT-VALUE] 5,508,827,790
[RECEIVABLES] 71,310,196
[ASSETS-OTHER] 375,826
[OTHER-ITEMS-ASSETS] 0
[TOTAL-ASSETS] 5,580,513,812
[PAYABLE-FOR-SECURITIES] 128,723,605
[SENIOR-LONG-TERM-DEBT] 0
[OTHER-ITEMS-LIABILITIES] 38,436,578
[TOTAL-LIABILITIES] 167,160,183
[SENIOR-EQUITY] 0
[PAID-IN-CAPITAL-COMMON] 5,414,646,050
[SHARES-COMMON-STOCK] 17,809,106
[SHARES-COMMON-PRIOR] 0
[ACCUMULATED-NII-CURRENT] 0
[OVERDISTRIBUTION-NII] 0
[ACCUMULATED-NET-GAINS] 0
[OVERDISTRIBUTION-GAINS] 0
[ACCUM-APPREC-OR-DEPREC] 0
[NET-ASSETS] 5,413,353,629
[DIVIDEND-INCOME] 0
[INTEREST-INCOME] 197,987,693
[OTHER-INCOME] 0
[EXPENSES-NET] 31,794,018
[NET-INVESTMENT-INCOME] 166,193,675
[REALIZED-GAINS-CURRENT] 182,322
[APPREC-INCREASE-CURRENT] 0
[NET-CHANGE-FROM-OPS] 166,375,997
[EQUALIZATION] 0
[DISTRIBUTIONS-OF-INCOME] 166,193,675
[DISTRIBUTIONS-OF-GAINS] 0
[DISTRIBUTIONS-OTHER] 0
[NUMBER-OF-SHARES-SOLD] 17,769,114
[NUMBER-OF-SHARES-REDEEMED] 0
[SHARES-REINVESTED] 39,992
[NET-CHANGE-IN-ASSETS] 761,287,251
[ACCUMULATED-NII-PRIOR] 0
[ACCUMULATED-GAINS-PRIOR] 0
[OVERDISTRIB-NII-PRIOR] 0
[OVERDIST-NET-GAINS-PRIOR] 0
[GROSS-ADVISORY-FEES] 24,738,969
[INTEREST-EXPENSE] 0
[GROSS-EXPENSE] 32,520,699
[AVERAGE-NET-ASSETS] 17,786,263
[PER-SHARE-NAV-BEGIN] 1.00
[PER-SHARE-NII] 0.004
[PER-SHARE-GAIN-APPREC] 0
[PER-SHARE-DIVIDEND] 0.004
[PER-SHARE-DISTRIBUTIONS] 0
[RETURNS-OF-CAPITAL] 0
[PER-SHARE-NAV-END] 1.00
[EXPENSE-RATIO] 0.55
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
