<TABLE> <S> <C>
<ARTICLE> 9
<LEGEND>
This schedule contains summary financial information extracted from Firstbank
Corporation's unaudited financial statements and is qualified in its entirety
by reference to such financial statements as of June 30, 2000.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 21,673
<INT-BEARING-DEPOSITS> 374
<FED-FUNDS-SOLD> 3,447
<TRADING-ASSETS> 0
<INVESTMENTS-HELD-FOR-SALE> 81,868
<INVESTMENTS-CARRYING> 0
<INVESTMENTS-MARKET> 0
<LOANS> 557,418
<ALLOWANCE> (9,764)
<TOTAL-ASSETS> 692,892
<DEPOSITS> 501,953
<SHORT-TERM> 83,798
<LIABILITIES-OTHER> 7,983
<LONG-TERM> 36,841
0
0
<COMMON> 53,910
<OTHER-SE> 8,407
<TOTAL-LIABILITIES-AND-EQUITY> 692,892
<INTEREST-LOAN> 23,151
<INTEREST-INVEST> 2,635
<INTEREST-OTHER> 0
<INTEREST-TOTAL> 25,786
<INTEREST-DEPOSIT> 8,869
<INTEREST-EXPENSE> 11,687
<INTEREST-INCOME-NET> 14,099
<LOAN-LOSSES> 388
<SECURITIES-GAINS> 4
<EXPENSE-OTHER> 10,177
<INCOME-PRETAX> 6,192
<INCOME-PRE-EXTRAORDINARY> 6,192
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 4,250
<EPS-BASIC> .91
<EPS-DILUTED> .90
<YIELD-ACTUAL> 4.70
<LOANS-NON> 1,624
<LOANS-PAST> 1,283
<LOANS-TROUBLED> 53
<LOANS-PROBLEM> 1,933
<ALLOWANCE-OPEN> 9,317
<CHARGE-OFFS> 305
<RECOVERIES> 364
<ALLOWANCE-CLOSE> 9,764
<ALLOWANCE-DOMESTIC> 8,045
<ALLOWANCE-FOREIGN> 0
<ALLOWANCE-UNALLOCATED> 1,719
</TABLE>