<ARTICLE>                                            9
<CIK>                                          0000356171
<NAME>                                         TRICO BANCSHARES
<MULTIPLIER>                                   1,000

                                            
<PERIOD-TYPE>                                  9-MOS
<FISCAL-YEAR-END>                              DEC-31-1999
<PERIOD-END>                                   SEP-30-1999
<CASH>                                         42,045
<INT-BEARING-DEPOSITS>                              0
<FED-FUNDS-SOLD>                                2,000
<TRADING-ASSETS>                                    0
<INVESTMENTS-HELD-FOR-SALE>                         0
<INVESTMENTS-CARRYING>                        236,110
<INVESTMENTS-MARKET>                          228,815
<LOANS>                                       601,341
<ALLOWANCE>                                    10,385
<TOTAL-ASSETS>                                918,766
<DEPOSITS>                                    770,105
<SHORT-TERM>                                   10,400
<LIABILITIES-OTHER>                            11,042
<LONG-TERM>                                    55,510
<PREFERRED-MANDATORY>                               0
<PREFERRED>                                         0
<COMMON>                                       49,430
<OTHER-SE>                                     22,279
<TOTAL-LIABILITIES-AND-EQUITY>                918,766
<INTEREST-LOAN>                                39,251
<INTEREST-INVEST>                              11,163
<INTEREST-OTHER>                                   83
<INTEREST-TOTAL>                               50,497
<INTEREST-DEPOSIT>                             15,584
<INTEREST-EXPENSE>                             17,928
<INTEREST-INCOME-NET>                          32,569
<LOAN-LOSSES>                                   2,585
<SECURITIES-GAINS>                                 24
<EXPENSE-OTHER>                                26,013
<INCOME-PRETAX>                                13,149
<INCOME-PRE-EXTRAORDINARY>                          0
<EXTRAORDINARY>                                     0
<CHANGES>                                           0
<NET-INCOME>                                    8,318
<EPS-BASIC>                                    1.17
<EPS-DILUTED>                                    1.14
<YIELD-ACTUAL>                                   8.66
<LOANS-NON>                                     1,190
<LOANS-PAST>                                    1,157
<LOANS-TROUBLED>                                    0
<LOANS-PROBLEM>                                     0
<ALLOWANCE-OPEN>                                8,206
<CHARGE-OFFS>                                    (514)
<RECOVERIES>                                      108
<ALLOWANCE-CLOSE>                               2,585
<ALLOWANCE-DOMESTIC>                           10,385
<ALLOWANCE-FOREIGN>                                 0
<ALLOWANCE-UNALLOCATED>                             0