[ARTICLE] 6
[CIK] 0000775370
[NAME] SMITH BARNEY MUNI FUNDS
[SERIES]
   [NUMBER] 13
   [NAME] PENNSYLVANIA PORTFOLIO. CLASS B
<TABLE>
<S>                             <C>
[PERIOD-TYPE]                   YEAR
[FISCAL-YEAR-END]                          MAR-31-1999
[PERIOD-END]                               MAR-31-1999
[INVESTMENTS-AT-COST]                       63,501,376
[INVESTMENTS-AT-VALUE]                      65,987,331
[RECEIVABLES]                                2,567,904
[ASSETS-OTHER]                                  56,004
[OTHER-ITEMS-ASSETS]                                 0
[TOTAL-ASSETS]                              68,611,239
[PAYABLE-FOR-SECURITIES]                     1,000,000
[SENIOR-LONG-TERM-DEBT]                              0
[OTHER-ITEMS-LIABILITIES]                      168,706
[TOTAL-LIABILITIES]                          1,168,706
[SENIOR-EQUITY]                                      0
[PAID-IN-CAPITAL-COMMON]                    64,859,022
[SHARES-COMMON-STOCK]                        1,880,764
[SHARES-COMMON-PRIOR]                        1,425,174
[ACCUMULATED-NII-CURRENT]                        3,903
[OVERDISTRIBUTION-NII]                               0
[ACCUMULATED-NET-GAINS]                         93,653
[OVERDISTRIBUTION-GAINS]                             0
[ACCUM-APPREC-OR-DEPREC]                     2,485,955
[NET-ASSETS]                                67,442,533
[DIVIDEND-INCOME]                                    0
[INTEREST-INCOME]                            2,860,246
[OTHER-INCOME]                                       0
[EXPENSES-NET]                                 428,347
[NET-INVESTMENT-INCOME]                      2,431,899
[REALIZED-GAINS-CURRENT]                       207,244
[APPREC-INCREASE-CURRENT]                     (40,052)
[NET-CHANGE-FROM-OPS]                        2,599,091
[EQUALIZATION]                                       0
[DISTRIBUTIONS-OF-INCOME]                    1,018,541
[DISTRIBUTIONS-OF-GAINS]                       260,275
[DISTRIBUTIONS-OTHER]                                0
[NUMBER-OF-SHARES-SOLD]                        619,028
[NUMBER-OF-SHARES-REDEEMED]                    219,380
[SHARES-REINVESTED]                             55,942
[NET-CHANGE-IN-ASSETS]                      24,490,219
[ACCUMULATED-NII-PRIOR]                         96,710
[ACCUMULATED-GAINS-PRIOR]                      493,549
[OVERDISTRIB-NII-PRIOR]                              0
[OVERDIST-NET-GAINS-PRIOR]                           0
[GROSS-ADVISORY-FEES]                          235,522
[INTEREST-EXPENSE]                                   0
[GROSS-EXPENSE]                                558,320
[AVERAGE-NET-ASSETS]                        22,190,586
[PER-SHARE-NAV-BEGIN]                            13.52
[PER-SHARE-NII]                                  00.60
[PER-SHARE-GAIN-APPREC]                          00.07
[PER-SHARE-DIVIDEND]                             00.62
[PER-SHARE-DISTRIBUTIONS]                        00.15
[RETURNS-OF-CAPITAL]                                 0
[PER-SHARE-NAV-END]                              13.42
[EXPENSE-RATIO]                                  01.01
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0
</TABLE>