WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000775370
<NAME> Pennsylvania Portfolio
<SERIES>
   <NUMBER>013
   <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>                            63,388,400
<INVESTMENTS-AT-VALUE>                           61,674,512
<RECEIVABLES>                                     1,384,853
<ASSETS-OTHER>                                            0
<OTHER-ITEMS-ASSETS>                                      0
<TOTAL-ASSETS>                                   63,059,365
<PAYABLE-FOR-SECURITIES>                                  0
<SENIOR-LONG-TERM-DEBT>                                   0
<OTHER-ITEMS-LIABILITIES>                           468,883
<TOTAL-LIABILITIES>                                 468,883
<SENIOR-EQUITY>                                           0
<PAID-IN-CAPITAL-COMMON>                         66,157,264
<SHARES-COMMON-STOCK>                             2,137,471
<SHARES-COMMON-PRIOR>                             2,296,364
<ACCUMULATED-NII-CURRENT>                            49,736
<OVERDISTRIBUTION-NII>                                    0
<ACCUMULATED-NET-GAINS>                          (1,902,630)
<OVERDISTRIBUTION-GAINS>                                  0
<ACCUM-APPREC-OR-DEPREC>                         (1,713,888)
<NET-ASSETS>                                     62,590,482
<DIVIDEND-INCOME>                                         0
<INTEREST-INCOME>                                 1,903,276
<OTHER-INCOME>                                            0
<EXPENSES-NET>                                      266,043
<NET-INVESTMENT-INCOME>                           1,637,233
<REALIZED-GAINS-CURRENT>                           (305,138)
<APPREC-INCREASE-CURRENT>                         1,245,108
<NET-CHANGE-FROM-OPS>                             2,577,203
<EQUALIZATION>                                            0
<DISTRIBUTIONS-OF-INCOME>                           726,797
<DISTRIBUTIONS-OF-GAINS>                                  0
<DISTRIBUTIONS-OTHER>                                     0
<NUMBER-OF-SHARES-SOLD>                             122,653
<NUMBER-OF-SHARES-REDEEMED>                         315,392
<SHARES-REINVESTED>                                  33,846
<NET-CHANGE-IN-ASSETS>                             (318,369)
<ACCUMULATED-NII-PRIOR>                              40,880
<ACCUMULATED-GAINS-PRIOR>                        (1,597,492)
<OVERDISTRIB-NII-PRIOR>                                   0
<OVERDIST-NET-GAINS-PRIOR>                                0
<GROSS-ADVISORY-FEES>                               138,061
<INTEREST-EXPENSE>                                        0
<GROSS-EXPENSE>                                     327,403
<AVERAGE-NET-ASSETS>                             26,123,053
<PER-SHARE-NAV-BEGIN>                                12.180
<PER-SHARE-NII>                                       0.340
<PER-SHARE-GAIN-APPREC>                               0.200
<PER-SHARE-DIVIDEND>                                  0.340
<PER-SHARE-DISTRIBUTIONS>                             0.000
<RETURNS-OF-CAPITAL>                                  0.000
<PER-SHARE-NAV-END>                                  12.380
<EXPENSE-RATIO>                                        0.55



</TABLE>