<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
<MULTIPLIER> 1,000

<S>                             <C>                     <C>                     <C>
<PERIOD-TYPE>                   YEAR                   YEAR                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1999             DEC-31-1998             DEC-31-1997
<PERIOD-START>                             JAN-01-1999             JAN-01-1998             JAN-01-1997
<PERIOD-END>                               DEC-31-1999             DEC-31-1998             DEC-31-1997
<CASH>                                           7,184                   5,727                       0
<INT-BEARING-DEPOSITS>                               0                       0                       0
<FED-FUNDS-SOLD>                                     0                   7,520                       0
<TRADING-ASSETS>                                     0                       0                       0
<INVESTMENTS-HELD-FOR-SALE>                     30,029                  25,298                       0
<INVESTMENTS-CARRYING>                               0                   2,496                       0
<INVESTMENTS-MARKET>                            30,029                  27,823                       0
<LOANS>                                        109,571                  95,104                       0
<ALLOWANCE>                                        701                     701                       0
<TOTAL-ASSETS>                                 152,746                 139,278                       0
<DEPOSITS>                                     127,619                 124,420                       0
<SHORT-TERM>                                     9,840                       0                       0
<LIABILITIES-OTHER>                                843                     799                       0
<LONG-TERM>                                          0                       0                       0
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                       0                       0
<COMMON>                                         1,300                   1,300                       0
<OTHER-SE>                                      13,144                  12,759                       0
<TOTAL-LIABILITIES-AND-EQUITY>                 152,746                 139,278                       0
<INTEREST-LOAN>                                  8,613                   7,850                   6,789
<INTEREST-INVEST>                                1,908                   1,397                   1,396
<INTEREST-OTHER>                                   232                     717                     508
<INTEREST-TOTAL>                                10,753                   9,964                   8,694
<INTEREST-DEPOSIT>                               4,323                   4,260                   3,605
<INTEREST-EXPENSE>                               4,378                   4,260                   3,605
<INTEREST-INCOME-NET>                            6,375                   5,704                   5,088
<LOAN-LOSSES>                                       23                      90                     107
<SECURITIES-GAINS>                                   6                       0                       5
<EXPENSE-OTHER>                                  3,897                   3,629                   3,293
<INCOME-PRETAX>                                  3,155                   2,974                   2,951
<INCOME-PRE-EXTRAORDINARY>                       2,024                   1,891                   1,894
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                     2,024                   1,891                   1,894
<EPS-BASIC>                                       2.83                    2.64                    2.64
<EPS-DILUTED>                                     2.83                    2.64                    2.64
<YIELD-ACTUAL>                                    4.66                    4.70                    4.60
<LOANS-NON>                                        555                     509                       0
<LOANS-PAST>                                     3,272                   3,310                       0
<LOANS-TROUBLED>                                     0                       0                       0
<LOANS-PROBLEM>                                    936                     914                       0
<ALLOWANCE-OPEN>                                   701                     672                       0
<CHARGE-OFFS>                                       29                      65                       0
<RECOVERIES>                                         5                       4                       0
<ALLOWANCE-CLOSE>                                  701                     701                       0
<ALLOWANCE-DOMESTIC>                               701                     701                       0
<ALLOWANCE-FOREIGN>                                  0                       0                       0
<ALLOWANCE-UNALLOCATED>                              0                       0                       0


</TABLE>