<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
       
<S>                             <C>                     <C>                     <C>
<PERIOD-TYPE>                   6-MOS                   6-MOS                   YEAR
<FISCAL-YEAR-END>                          JUN-30-1998             JUN-30-1997             DEC-31-1997
<PERIOD-START>                             JAN-01-1998             JAN-01-1997             JAN-01-1997
<PERIOD-END>                               JUN-30-1998             JUN-30-1997             DEC-31-1997
<CASH>                                           5,090                   4,844                   5,267
<INT-BEARING-DEPOSITS>                               0                       0                       0
<FED-FUNDS-SOLD>                                12,280                   4,475                   8,910
<TRADING-ASSETS>                                     0                       0                       0
<INVESTMENTS-HELD-FOR-SALE>                     18,342                  18,842                  15,958
<INVESTMENTS-CARRYING>                            2495                    7061                    3958
<INVESTMENTS-MARKET>                             2,527                    7074                    4026
<LOANS>                                         89,318                  77,259                  84,898
<ALLOWANCE>                                        716                     581                     673
<TOTAL-ASSETS>                                 130,365                 115,362                 121,850
<DEPOSITS>                                     115,946                 102,643                 108,107
<SHORT-TERM>                                         0                       0                       0
<LIABILITIES-OTHER>                                785                     643                     760
<LONG-TERM>                                          0                       0                       0
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                       0                       0
<COMMON>                                         1,300                    1274                   1,300
<OTHER-SE>                                      12,334                  10,802                  11,683
<TOTAL-LIABILITIES-AND-EQUITY>                 130,365                 115,362                 121,850
<INTEREST-LOAN>                                  3,794                    3204                       0
<INTEREST-INVEST>                                  609                     698                       0
<INTEREST-OTHER>                                   385                     230                       0
<INTEREST-TOTAL>                                 4,788                    4132                       0
<INTEREST-DEPOSIT>                                2045                   1,693                       0
<INTEREST-EXPENSE>                                2045                    1693                       0
<INTEREST-INCOME-NET>                             2743                    2439                       0
<LOAN-LOSSES>                                       45                      15                       0
<SECURITIES-GAINS>                                   0                       0                       0
<EXPENSE-OTHER>                                  1,679                   1,551                       0
<INCOME-PRETAX>                                  1,599                   1,462                       0
<INCOME-PRE-EXTRAORDINARY>                        1012                     946                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                      1012                     946                       0
<EPS-PRIMARY>                                     2.11                    2.02                       0
<EPS-DILUTED>                                     2.11                    2.02                       0
<YIELD-ACTUAL>                                   4.645                   4.770                       0
<LOANS-NON>                                        578                     554                       0
<LOANS-PAST>                                     2,200                     352                       0
<LOANS-TROUBLED>                                     0                       0                       0
<LOANS-PROBLEM>                                    843                     548                       0
<ALLOWANCE-OPEN>                                   673                     681                       0
<CHARGE-OFFS>                                        4                     115                       0
<RECOVERIES>                                         3                       0                       0
<ALLOWANCE-CLOSE>                                  716                     581                       0
<ALLOWANCE-DOMESTIC>                               716                     581                       0
<ALLOWANCE-FOREIGN>                                  0                       0                       0
<ALLOWANCE-UNALLOCATED>                              0                       0                       0
        

</TABLE>