[ARTICLE] 6
[CIK] 0000880583
[NAME] THE TRAVELERS SERIES TRUST
[SERIES]
   [NUMBER] 6
   [NAME] ZERO COUPON BOND FUND PORTFOLIO SERIES 2005
<TABLE>
<S>                             <C>
[PERIOD-TYPE]                   6-MOS
[FISCAL-YEAR-END]                          DEC-31-1999
[PERIOD-END]                               JUN-30-1999
[INVESTMENTS-AT-COST]                        2,926,504
[INVESTMENTS-AT-VALUE]                       2,979,051
[RECEIVABLES]                                   26,218
[ASSETS-OTHER]                                  83,731
[OTHER-ITEMS-ASSETS]                                 0
[TOTAL-ASSETS]                               3,089,000
[PAYABLE-FOR-SECURITIES]                             0
[SENIOR-LONG-TERM-DEBT]                              0
[OTHER-ITEMS-LIABILITIES]                       10,302
[TOTAL-LIABILITIES]                             10,302
[SENIOR-EQUITY]                                      0
[PAID-IN-CAPITAL-COMMON]                     2,948,056
[SHARES-COMMON-STOCK]                          286,612
[SHARES-COMMON-PRIOR]                          281,491
[ACCUMULATED-NII-CURRENT]                       85,790
[OVERDISTRIBUTION-NII]                               0
[ACCUMULATED-NET-GAINS]                        (7,695)
[OVERDISTRIBUTION-GAINS]                             0
[ACCUM-APPREC-OR-DEPREC]                        52,547
[NET-ASSETS]                                 3,078,698
[DIVIDEND-INCOME]                                    0
[INTEREST-INCOME]                               88,100
[OTHER-INCOME]                                       0
[EXPENSES-NET]                                   2,310
[NET-INVESTMENT-INCOME]                         85,790
[REALIZED-GAINS-CURRENT]                             0
[APPREC-INCREASE-CURRENT]                    (234,389)
[NET-CHANGE-FROM-OPS]                        (148,599)
[EQUALIZATION]                                       0
[DISTRIBUTIONS-OF-INCOME]                            0
[DISTRIBUTIONS-OF-GAINS]                             0
[DISTRIBUTIONS-OTHER]                                0
[NUMBER-OF-SHARES-SOLD]                         17,337
[NUMBER-OF-SHARES-REDEEMED]                     12,216
[SHARES-REINVESTED]                                  0
[NET-CHANGE-IN-ASSETS]                        (91,709)
[ACCUMULATED-NII-PRIOR]                              0
[ACCUMULATED-GAINS-PRIOR]                      (7,695)
[OVERDISTRIB-NII-PRIOR]                              0
[OVERDIST-NET-GAINS-PRIOR]                           0
[GROSS-ADVISORY-FEES]                            2,470
[INTEREST-EXPENSE]                                   0
[GROSS-EXPENSE]                                 28,970
[AVERAGE-NET-ASSETS]                         3,114,819
[PER-SHARE-NAV-BEGIN]                            11.26
[PER-SHARE-NII]                                  00.30
[PER-SHARE-GAIN-APPREC]                         (0.82)
[PER-SHARE-DIVIDEND]                                 0
[PER-SHARE-DISTRIBUTIONS]                            0
[RETURNS-OF-CAPITAL]                                 0
[PER-SHARE-NAV-END]                              10.74
[EXPENSE-RATIO]                                  00.15
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0
</TABLE>