<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000775370
<NAME> California Money Market Portfolio
<SERIES>
<NUMBER>005
<NAME>Smith Barney Muni Funds, Inc.
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> Mar-31-2001
<PERIOD-END> Sep-30-2000
<INVESTMENTS-AT-COST> 3,242,215,353
<INVESTMENTS-AT-VALUE> 3,242,215,353
<RECEIVABLES> 19,927,363
<ASSETS-OTHER> 91,224
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 3,262,233,940
<PAYABLE-FOR-SECURITIES> 82,317,793
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 7,437,983
<TOTAL-LIABILITIES> 89,755,776
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 3,172,543,814
<SHARES-COMMON-STOCK> 2,538
<SHARES-COMMON-PRIOR> 2,498
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (65,650)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 3,172,478,164
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 56,624,460
<OTHER-INCOME> 0
<EXPENSES-NET> 9,587,213
<NET-INVESTMENT-INCOME> 47,037,247
<REALIZED-GAINS-CURRENT> (14,692)
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 47,022,555
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 41
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 40
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 77,159,447
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (50,958)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 7,516,071
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 9,587,213
<AVERAGE-NET-ASSETS> 2,529
<PER-SHARE-NAV-BEGIN> 1.000
<PER-SHARE-NII> 0.016
<PER-SHARE-GAIN-APPREC> 0.000
<PER-SHARE-DIVIDEND> 0.016
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 1.000
<EXPENSE-RATIO> 0.55
</TABLE>