<TABLE> <S> <C>

<ARTICLE> 9
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS OF UST CORP. FOR THE SIX MONTHS ENDED JUNE 30, 1998 AND
IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS OF FORM
10-Q.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                          89,381
<INT-BEARING-DEPOSITS>                             164
<FED-FUNDS-SOLD>                                60,248
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                    686,410
<INVESTMENTS-CARRYING>                               0
<INVESTMENTS-MARKET>                                 0
<LOANS>                                      2,957,280
<ALLOWANCE>                                     52,816
<TOTAL-ASSETS>                               3,915,358
<DEPOSITS>                                   2,991,896
<SHORT-TERM>                                   483,744
<LIABILITIES-OTHER>                             50,925
<LONG-TERM>                                     26,694
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        18,686     
<OTHER-SE>                                     343,413
<TOTAL-LIABILITIES-AND-EQUITY>               3,915,358
<INTEREST-LOAN>                                126,340
<INTEREST-INVEST>                               21,358
<INTEREST-OTHER>                                 1,557
<INTEREST-TOTAL>                               149,255
<INTEREST-DEPOSIT>                              40,847
<INTEREST-EXPENSE>                              53,524
<INTEREST-INCOME-NET>                           95,731
<LOAN-LOSSES>                                    1,665
<SECURITIES-GAINS>                               1,471
<EXPENSE-OTHER>                                 74,575
<INCOME-PRETAX>                                 40,862
<INCOME-PRE-EXTRAORDINARY>                      40,862
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    25,390
<EPS-PRIMARY>                                      .85
<EPS-DILUTED>                                      .83
<YIELD-ACTUAL>                                    8.37
<LOANS-NON>                                     19,857
<LOANS-PAST>                                     1,252
<LOANS-TROUBLED>                                     0
<LOANS-PROBLEM>                                 33,200
<ALLOWANCE-OPEN>                                52,230
<CHARGE-OFFS>                                    5,540
<RECOVERIES>                                     4,461
<ALLOWANCE-CLOSE>                               52,816
<ALLOWANCE-DOMESTIC>                            52,816
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                          9,405
        

</TABLE>