<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000775370
<NAME> SMITH BARNEY MUNI FUNDS
<SERIES>
   <NUMBER> 5
   <NAME> CALIFORNIA MONEY MARKET PORTFOLIO. CLASS Y
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          MAR-31-1998
<PERIOD-END>                               MAR-31-1998
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<INVESTMENTS-AT-VALUE>                   1,762,465,066
<RECEIVABLES>                               36,061,513
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                           281,140
<TOTAL-ASSETS>                           1,798,807,719
<PAYABLE-FOR-SECURITIES>                     2,900,000
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    3,166,157
<TOTAL-LIABILITIES>                          6,066,157
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,792,989,315
<SHARES-COMMON-STOCK>                        3,413,145
<SHARES-COMMON-PRIOR>                        7,404,962
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      (154,572)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                             0
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<DIVIDEND-INCOME>                                    0
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<OTHER-INCOME>                                       0
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<REALIZED-GAINS-CURRENT>                        31,993
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<NET-CHANGE-FROM-OPS>                       45,871,157
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       54,032
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                     28,124,043
<NUMBER-OF-SHARES-REDEEMED>                 32,170,362 
<SHARES-REINVESTED>                             54,503
<NET-CHANGE-IN-ASSETS>                     385,189,296
<ACCUMULATED-NII-PRIOR>                              0
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<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              9,837,357
<AVERAGE-NET-ASSETS>                         1,791,411
<PER-SHARE-NAV-BEGIN>                            1.000
<PER-SHARE-NII>                                  0.031
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<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              1.000
<EXPENSE-RATIO>                                  0.540
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>