[ARTICLE] 6
[CIK] 0000764624
[NAME] SMITH BARNEY INCOME FUNDS
[SERIES]
   [NUMBER] 4
   [NAME] SMITH BARNEY MUNICIPAL HIGH INCOME PORTFOLIO, CLASS B
<TABLE>
<S>                             <C>
[PERIOD-TYPE]                   YEAR
[FISCAL-YEAR-END]                          JUL-31-1998
[PERIOD-END]                               JUL-31-1998
[INVESTMENTS-AT-COST]                      706,461,805
[INVESTMENTS-AT-VALUE]                     747,875,993
[RECEIVABLES]                               10,548,085
[ASSETS-OTHER]                                  47,385
[OTHER-ITEMS-ASSETS]                                 0
[TOTAL-ASSETS]                             758,471,463
[PAYABLE-FOR-SECURITIES]                    15,123,523
[SENIOR-LONG-TERM-DEBT]                              0
[OTHER-ITEMS-LIABILITIES]                    2,113,153
[TOTAL-LIABILITIES]                         17,236,676
[SENIOR-EQUITY]                                      0
[PAID-IN-CAPITAL-COMMON]                   686,807,310
[SHARES-COMMON-STOCK]                       26,211,866
[SHARES-COMMON-PRIOR]                       31,084,397
[ACCUMULATED-NII-CURRENT]                  (1,292,859)
[OVERDISTRIBUTION-NII]                               0
[ACCUMULATED-NET-GAINS]                     14,306,148
[OVERDISTRIBUTION-GAINS]                             0
[ACCUM-APPREC-OR-DEPREC]                    41,414,188
[NET-ASSETS]                               741,234,787
[DIVIDEND-INCOME]                                    0
[INTEREST-INCOME]                           47,079,790
[OTHER-INCOME]                                       0
[EXPENSES-NET]                               8,954,401
[NET-INVESTMENT-INCOME]                     38,125,389
[REALIZED-GAINS-CURRENT]                    19,192,567
[APPREC-INCREASE-CURRENT]                 (10,697,596)
[NET-CHANGE-FROM-OPS]                       46,620,360
[EQUALIZATION]                                       0
[DISTRIBUTIONS-OF-INCOME]                   25,167,878
[DISTRIBUTIONS-OF-GAINS]                     7,979,441
[DISTRIBUTIONS-OTHER]                                0
[NUMBER-OF-SHARES-SOLD]                        798,147
[NUMBER-OF-SHARES-REDEEMED]                  6,710,099
[SHARES-REINVESTED]                          1,039,421
[NET-CHANGE-IN-ASSETS]                    (75,324,092)
[ACCUMULATED-NII-PRIOR]                        (4,147)
[ACCUMULATED-GAINS-PRIOR]                    6,985,416
[OVERDISTRIB-NII-PRIOR]                              0
[OVERDIST-NET-GAINS-PRIOR]                           0
[GROSS-ADVISORY-FEES]                        4,655,163
[INTEREST-EXPENSE]                                   0
[GROSS-EXPENSE]                              8,954,401
[AVERAGE-NET-ASSETS]                       512,859,830
[PER-SHARE-NAV-BEGIN]                            18.09
[PER-SHARE-NII]                                  00.86
[PER-SHARE-GAIN-APPREC]                          00.19
[PER-SHARE-DIVIDEND]                             00.89
[PER-SHARE-DISTRIBUTIONS]                        00.27
[RETURNS-OF-CAPITAL]                                 0
[PER-SHARE-NAV-END]                              17.98
[EXPENSE-RATIO]                                  01.32
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0
</TABLE>