<TABLE> <S> <C>

<ARTICLE> 9
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS OF UST CORP. FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1999
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS OF
FORM 10-Q.
</LEGEND>
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               SEP-30-1999
<EXCHANGE-RATE>                                      1
<CASH>                                         129,194
<INT-BEARING-DEPOSITS>                             454
<FED-FUNDS-SOLD>                                18,531
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                  1,356,075
<INVESTMENTS-CARRYING>                               0
<INVESTMENTS-MARKET>                                 0
<LOANS>                                      4,524,148
<ALLOWANCE>                                     67,556
<TOTAL-ASSETS>                               6,251,270
<DEPOSITS>                                   4,263,086
<SHORT-TERM>                                 1,331,944
<LIABILITIES-OTHER>                             75,904
<LONG-TERM>                                     33,376
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        26,733
<OTHER-SE>                                     520,227
<TOTAL-LIABILITIES-AND-EQUITY>               6,251,270
<INTEREST-LOAN>                                266,356
<INTEREST-INVEST>                               58,419
<INTEREST-OTHER>                                 1,330
<INTEREST-TOTAL>                               326,105
<INTEREST-DEPOSIT>                              82,842
<INTEREST-EXPENSE>                              42,228
<INTEREST-INCOME-NET>                          201,035
<LOAN-LOSSES>                                    8,600
<SECURITIES-GAINS>                                 625
<EXPENSE-OTHER>                                154,763
<INCOME-PRETAX>                                 84,781
<INCOME-PRE-EXTRAORDINARY>                      84,781
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    54,228
<EPS-BASIC>                                       1.27
<EPS-DILUTED>                                     1.25
<YIELD-ACTUAL>                                    7.71
<LOANS-NON>                                     25,868
<LOANS-PAST>                                     2,142
<LOANS-TROUBLED>                                     0
<LOANS-PROBLEM>                                 81,400
<ALLOWANCE-OPEN>                                65,274
<CHARGE-OFFS>                                    9,513
<RECOVERIES>                                     3,195
<ALLOWANCE-CLOSE>                               67,556
<ALLOWANCE-DOMESTIC>                            67,556
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                          1,527


</TABLE>