TriCo Bancshares
                              63 Constitution Drive
                             Chico, California 95973


                                 October 1, 2009

Via EDGAR--CORRES

Hugh West
Accounting Branch Chief
U.S. Securities and Exchange Commission
Washington, D.C 20549

Mail Stop 4720

Re:    TriCo Bancshares
       Form 10-K for Fiscal Year Ended December 31, 2008
       Form 10-Q for Quarterly Period Ended June 30, 2009
       File Number 000-10611


Dear Mr. West:

We have  reviewed  your letter  dated August 31, 2009  regarding  your review of
TriCo Bancshares's (the "Company") Form 10-K for December 31, 2008 and Form 10-Q
for March 31, 2009 filed with the U.S.  Securities and Exchange  Commission (the
"SEC").  In our letter to you dated September 14, 2009, we requested  additional
time in order to draft the enhanced  disclosures  you  requested.  We have since
drafted such enhancements and present them now as set forth below.

Form 10-Q filed for the period ended June 30, 2009
- ---------------------------------------------------

Item 1. Financial Statements
- ----------------------------

Notes to Unaudited Condensed Consolidated Financial Statements
- --------------------------------------------------------------

Allowance for Loan Losses, page 10
- ----------------------------------

1.   Please revise your future  filings to provide the  disclosures  required by
     paragraph 20(a) of SFAS 114. Please note that such disclosures are required
     as of each balance sheet date, including quarterly periods.

Response: The Company will include the  disclosures  required by paragraph 20(a)
          of SFAS 114 in future  filings.  The  Company  intends  to modify  its
          disclosure  beginning  with its September 30, 2009 10-Q to include the
          following:






Loans  classified as nonaccrual  were classified as impaired and are included in
the recorded  balance of impaired loans.  The Company's  recorded  investment in
impaired loans were as follows (dollars in thousands):




                                             September 30,   December 31,  September 30,
                                               2009            2008          2008
                                            -------------------------------------------
                                                                      

Impaired loans with no allocated allowance                   $14,813        $12,526
Impaired loans with allocated allowance                       12,525          4,141
                                            -------------------------------------------
Total impaired loans                                         $27,338        $16,667
Allowance for loan losses                   -------------------------------------------
     allocated to impaired loans                              $5,430         $1,738
                                            ===========================================


The valuation allowance allocated to impaired loans is included in the allowance
for loan losses shown above. The average  recorded  investment in impaired loans
was  $xx.x  million  and $xx.x  million  for the  three  and nine  months  ended
September  30, 2009 and $xx.x  million and $xx.x  million for the three and nine
months ended  September  30, 2008.  The Company  recognized  interest  income on
impaired  loans of $xx.x million and $xx.x million for the three and nine months
ended  September  30, 2009 and $xx.x million and $xx.x million for the three and
nine months ended September 30, 2008.


Item 2. Management's  Discussion and Analysis of Financial Condition and Results
of Operations
- --------------------------------------------------------------------------------

Classified Assets, page 30
- --------------------------

2.   We note that  consumer  loans  (including  HELOC and  indirect  auto loans)
     comprise a  significant  amount of your overall loan  portfolio.  So that a
     reader  would  have a  clear  understanding  of how  management  identifies
     problem loans within these  specific  loan  categories as well as the steps
     taken to address any potential  problems,  please expand your disclosure in
     future filings to address the following:

     o    Discuss the specific risks associated with these types of loans;

     o    Discuss the processes  taken by management  in  identifying  potential
          problem loans;

     o    Discuss  the  steps  taken  in  identifying  the  nature  and  type of
          underlying collateral supporting these loans;

     o    Discuss  how  management   determines  the  value  of  the  underlying
          collateral (i.e. if appraisals are obtained,  how often and under what
          circumstance);

     o    Discuss how  shortfalls  are  addressed,  including the steps taken by
          management to address  these  shortfalls  (i.e.  include the timeframe
          followed); and

     o    Discuss  the  timing  when  both  initial  and  any  subsequent   loan
          charge-offs or additional loan loss provisions are recorded.

     Provide us with your proposed future disclosures.

Response: The Company will enhance its future  disclosures,  beginning  with the
          Form 10-Q for the period ended  September  30,  2009,  to disclose how
          management  identifies  problem  consumer  loans and the steps that it
          takes to address  potential  problems with such loans.  We expect that
          such future enhancements will be similar to those shown below.


                                       2



Classified Assets
The  Company  closely  monitors  the  markets in which it  conducts  its lending
operations  and  continues  its strategy to control  exposure to loans with high
credit risk.  Asset reviews are performed  using grading  standards and criteria
similar to those employed by bank regulatory  agencies.  Assets receiving lesser
grades  fall  under  the  "classified  assets"  category,   which  includes  all
nonperforming  assets and potential problem loans, and receive an elevated level
of attention regarding collection.

Consumer loans, whether secured by real estate,  automobiles,  or other personal
property or unsecured, are primarily susceptible to 2 primary risks, non-payment
due to income loss or over-extension of credit,  and, when borrower is unable to
pay, a third risk, shortfall in collateral value.  Typically  non-payment is due
to loss of job and will follow general economic trends in the marketplace driven
primarily by rises in the unemployment rate. Loss of collateral value can be due
to market demand  shifts,  damage to collateral  itself or a combination  of the
two.

Problem  consumer  loans are  generally  identified  by  payment  history of the
borrower  (delinquency).  The Bank  manages  its  consumer  loan  portfolios  by
monitoring delinquency and contacting borrowers to encourage repayment,  suggest
modifications  if  appropriate,  and, when continued  scheduled  payments become
unrealistic,  initiate repossession or foreclosure through appropriate channels.
Collateral  values  may  be  determined  by  appraisals  obtained  through  Bank
approved, licensed appraisers, qualified independent third parties, public value
information (blue book values for autos),  sales invoices,  or other appropriate
means.  Appropriate  valuations  are  obtained at  initiation  of the credit and
periodically  (every 3-12 months depending on collateral type) once repayment is
questionable and the loan has been classified.

Once a loan  becomes  delinquent  and  repayment  becomes  questionable,  a Bank
collection  officer will  address  collateral  shortfalls  with the borrower and
attempt to obtain additional collateral.  If this is not forthcoming and payment
in full is unlikely,  the Bank will estimate its probable  loss,  using a recent
valuation as appropriate to the underlying  collateral  less estimated  costs of
sale, and charge the loan down to the estimated net realizable amount. Depending
on the  length of time  until  ultimate  collection,  the Bank may  revalue  the
underlying collateral and take additional charge-offs as warranted. Revaluations
may occur as often as every 3-12 months  depending on the underlying  collateral
and  volatility  of  values.  Final  charge-offs  or  recoveries  are taken when
collateral  is  liquidated  and actual loss is known.  Unpaid  balances on loans
after or during  collection and liquidation may also be pursued through suit and
attachment of wages or judgment liens on borrower's other assets

Commercial real estate loans generally fall into two categories,  owner-occupied
and non-owner occupied.

Loans secured by owner occupied real estate are primarily susceptible to changes
in the business conditions of the related business. This may be driven by, among
other things,  industry changes,  geographic  business  changes,  changes in the
individual  fortunes of the business owner, and general economic  conditions and
changes in business  cycles.  These same risks apply to commercial loans whether
secured by  equipment or other  personal  property or  unsecured.  Loss in loans
secured by owner occupied real estate,  equipment,  or other  personal  property
generally are dictated by value of underlying  collateral at the time of default
and  liquidation  of the  collateral.  When default is driven by issues  related
specifically  to the business  owner,  collateral  values tend to provide better
repayment  support  and may  result in little  or no loss.  Alternatively,  when
default is driven by more general  economic  conditions,  underlying  collateral
generally has devalued more and results in larger losses due to default.

Loans secured by non-owner  occupied real estate are  primarily  susceptible  to
risks associated with swings in occupancy or vacancy and related shifts in lease
rates,  rental  rates or room  rates.  Most often  these  shifts are a result of
changes in general  economic or market  conditions or overbuilding and resultant
over-supply.  Losses are dependent on value of underlying  collateral at time of
default.  Values are  generally  driven by these same factors and  influenced by
interest  rates and  required  rates of return as well as changes  in  occupancy
costs.

Construction loans, whether owner occupied or non-owner occupied commercial real
estate loans or residential  development  loans, are not only susceptible to the
related  risks  described  above  but the  added  risks of  construction  itself
including cost  over-runs,  mismanagement  of the project,  or lack of demand or
market changes  experienced at time of completion.  Again,  losses are primarily
related to underlying collateral value and changes therein as described above.

Problem  commercial  loans  are  generally  identified  by  periodic  review  of
financial information which may include financial statements,  tax returns, rent
rolls  and  payment  history  of  the  borrower  (delinquency).  Based  on  this
information  the Bank  may  decide  to take any of  several  courses  of  action
including demand for repayment,  additional collateral or guarantors,  and, when
repayment becomes unlikely through Borrower's income and cash flow, repossession
or foreclosure of the underlying collateral.

                                       3



Collateral  values  may  be  determined  by  appraisals  obtained  through  Bank
approved, licensed appraisers, qualified independent third parties, public value
information (blue book values for autos),  sales invoices,  or other appropriate
means.  Appropriate  valuations  are  obtained at  initiation  of the credit and
periodically  (every 3-12 months depending on collateral type) once repayment is
questionable and the loan has been classified.

Once a loan  becomes  delinquent  and  repayment  becomes  questionable,  a Bank
collection  officer will  address  collateral  shortfalls  with the borrower and
attempt to obtain additional collateral.  If this is not forthcoming and payment
in full is unlikely,  the Bank will estimate its probable  loss,  using a recent
valuation as appropriate to the underlying  collateral  less estimated  costs of
sale, and charge the loan down to the estimated net realizable amount. Depending
on the  length of time  until  ultimate  collection,  the Bank may  revalue  the
underlying collateral and take additional charge-offs as warranted. Revaluations
may occur as often as every 3-12 months  depending on the underlying  collateral
and  volatility  of  values.  Final  charge-offs  or  recoveries  are taken when
collateral  is  liquidated  and actual loss is known.  Unpaid  balances on loans
after or during  collection and liquidation may also be pursued through suit and
attachment of wages or judgment liens on borrower's other assets

The following is a summary of classified assets on the dates indicated:

                           At September 30, 2009         At December 31, 2008
                           ---------------------       -------------------------
                           Gross Guaranteed  Net       Gross Guaranteed   Net
                           -----------------------------------------------------
(dollars in thousands)
Classified loans:
Real estate mortgage:
     Residential                                       $3,981       -   $3,981
     Commercial                                        27,426   5,225   22,201
Consumer:
     Home equity lines                                  4,144       -    4,144
     Home equity loans                                    377       -      377
     Auto indirect                                      3,907       -    3,907
     Other consumer                                       257       -      257
Commercial                                              4,505     154    4,351
Construction:
     Residential                                           45       -       45
     Commercial                                        19,208       -   19,208
                           -----------------------------------------------------
Total classified loans                                 63,850  $5,379  $58,471
Other classified assets                                 1,185            1,185
                           -----------------------------------------------------
Total classified assets        $        $        $    $65,035  $5,379  $59,656
                           =====================================================
Allowance for loan losses/classified loans       %                        47.2%

Classified  assets,  net of  guarantees  of the U.S.  Government,  including its
agencies and its  government-sponsored  agencies,  increased  $_____  (____%) to
$_____at  September 30, 2009 from  $_____at  December 31, 2008.  The  guarantees
noted above are provided by various  government  agencies  including  the United
States  Department of  Agriculture,  Small  Business  Administration,  Bureau of
Indian  Affairs,  Statewide  Health  Planning  Development,  California  Capital
Financial Development  Corporation,  and Safe Bidco. These guarantees range from
50% to 100% of the loan amount with the  majority at 80% or higher.  We consider
these guarantees when considering the adequacy of the loan loss allowance.

The increase in  classified  loans during the third quarter was primarily due to
an increases of $______ in construction loans, $_______ in home equity lines and
loans,  $_____ in auto indirect loans,  $_______ in C & I Loans, and $_______ in
Residential  First D/T Loans.  The $______  increase in classified  construction
loans was primarily the result of the addition of a $_____ lot development  loan
in the San  Joaquin  Valley,  California,  a $_____ land loan in the San Joaquin
Valley,  California,  a $_____ lot  development  loan in the Sacramento  Valley,
California,  and  a  $288,000  charge  on a lot  development  loan  in  Northern
California.

                                       4



3.   We note the  continued  deterioration  in the  credit  quality of your loan
     portfolio  during fiscal 2008 and into fiscal 2009, which has resulted in a
     significant   increase  in  nonperforming  loans  and  assets  as  well  as
     significant  increases in both the loan loss provision and loan charge-offs
     during  that  timeframe.  So that a reader  will  reader  will have a clear
     understanding  of the  deterioration  being  experienced  within  your loan
     portfolio,  please revise your future filings to  specifically  discuss the
     nature,  geographical  location  and  type of loans  contributing  to these
     increases,  the problems associated with the specific individual loans, the
     charge-offs  recorded,  and the  triggering  events  which lead to both the
     charge-offs  and  the   significantly   increased  loan  loss   provisions.
     Additionally,  discuss  how these  more  recent  and  specific  events  and
     circumstances  have been factored into and considered in the  determination
     of the allowance for loan loss  methodologies  established  by  management.
     Provide us with your proposed future disclosures.

Response: The Company will enhance its future  disclosures,  beginning  with the
          Form  10-Q  for the  period  ended  September  30,  2009,  to  provide
          additional disclosures concerning changes in the credit quality of the
          loan portfolio as requested.  We expect such additional  disclosure to
          be similar in form to the following:

Provision for Loan Losses

The Company  provided $_____ for loan losses in the third quarter of 2009 versus
$_____ in the third quarter of 2008. This also resulted in an $_____ increase in
the allowance for loan losses from the second  quarter of 2009.  The  provisions
and  addition to the  allowance  for loan and lease  losses were  primarily  the
result of  changes  in the  make-up of the loan  portfolio  and the Bank's  loss
factors in reaction to increased losses in the Home Equity  portfolio,  the Home
Mortgage portfolio, and the Construction portfolio. Management re-evaluates it's
loss ratios and  assumptions  quarterly and makes changes as  appropriate  based
upon, among other things, changes in loss rates experienced,  collateral support
for underlying loans, changes and trends in the economy, and changes in the loan
mix

In the  third  quarter  of  2009,  the  Company  recorded  $_____  of  net  loan
charge-offs versus $______ of net loan charge-offs in the third quarter of 2008.
Primary  causes  of the  charges  taken in the  third  quarter  of 2009 were net
charge-offs of $_____ in construction  loans,  $_____,  in home equity lines and
loans,  $_____ in auto  indirect  loans,  $_____ in C & I Loans,  and  $_____ in
Residential  First D/T Loans.  The $_____ in charge-offs in  construction  loans
were primarily the result of a $_____ charge taken on a lot development  loan in
San Joaquin  Valley,  California,  an $_____  charge taken on a land loan in San
Joaquin  Valley,  California,  a  $_____  charge  on a lot  development  loan in
Sacramento Valley,  California, and a $_____ charge on a lot development loan in
Northern  California.  Generally losses are triggered by  non-performance by the
borrower and calculated based on any difference  between the current loan amount
and the current value of the  underlying  collateral  less any  estimated  costs
associated with the disposition of the collateral.

4.   We note your tabular  presentation of classified loans and other classified
     assets.  To enable a reader to have a clear  understanding of the potential
     exposure  within  each  of  your  lending  categories,  please  revise  the
     presentation  to identify the level (or "grading") of classified  loans and
     other assets by specific loan type.  Provide us with your  proposed  future
     disclosures.

Response: Beginning with the Form 10-Q for the period ended  September 30, 2009,
          the Company will enhance its tabular  presentation of classified loans
          and assets to include  levels or grades of classified  loans and other
          assets by  specific  loan type.  See the  response to Item 2 above for
          example of proposed enhancement to presentation of classified loans by
          specific loan type.

5.   Tell us  supplementally  and revise your disclosure in future  filings,  to
     explain the nature of the U.S.  Government  guarantees which are considered
     by the  Company  both in the  determination  of the level of  nonperforming
     loans in the determination of the loan loss allowance.

                                       5



Response: The guarantees are provided by various  government  agencies including
          the  United  States   Department  of   Agriculture,   Small   Business
          Administration,  Bureau of Indian Affairs,  Statewide  Health Planning
          Development, California Capital Financial Development Corporation, and
          Safe Bidco. These guarantees range from 50% to 100% of the loan amount
          with the majority at 80% or higher.  Historically,  we have  disclosed
          the  level  of  nonperforming  loans  before   consideration  of  such
          guarantees (gross) and after  consideration  (net) of such guarantees.
          We consider these guarantees when considering the adequacy of the loan
          loss  allowance.  See the  response  to Item 2 above  for  example  of
          proposed enhancement to discussion regarding loan guarantees.

Nonperforming Loans, page 30
- ----------------------------

6.   Given the significant increase in nonaccrual loans recognized during fiscal
     2008  and  into  fiscal  2009,  and in  order  to give  the  reader a clear
     understanding of the problem loans, please revise the tabular presentation,
     in future filings, to include a detail of nonaccrual loans by loan type.

Response: Beginning with the Form 10-Q for the period ended  September 30, 2009,
          the Company will enhance its tabular  presentation of problem loans to
          include a detail of nonaccrual  loans by loan type. We expect that the
          enhancement will be as follows:

Nonaccrual loans categorized by loan type were as follows:

                          At September 30, 2009         At December 31, 2008
                         -----------------------     ---------------------------
(dollars in thousands):   Gross  Guaranteed  Net      Gross  Guaranteed   Net
                         -------------------------------------------------------
Real estate mortgage:
     Residential                                     $3,189         -    $3,189
     Commercial                                       9,668     5,102     4,566
Consumer:
     Home equity lines                                2,318         -     2,318
     Home equity loans                                  122         -       122
     Auto indirect                                    2,228         -     2,228
     Other consumer                                     123         -       123
Commercial                                            2,039       154     1,885
Construction:
     Residential                                     12,483         -    12,483
     Commercial                                         424         -       424
                         -------------------------------------------------------
                                                    $32,594    $5,256   $27,338
                         =======================================================

The increase in non-performing  loans during the third quarter was primarily due
to a increases of $______ in construction  loans,  $_______ in home equity lines
and loans, $_____ in auto indirect loans,  $_______ in C & I Loans, and $_______
in  Residential   First  D/T  Loans.  The  $______  increase  in  non-performing
construction  loans was  primarily  the result of the  addition  of a $_____ lot
development  loan in the San Joaquin Valley,  California,  a $_____ land loan in
the San  Joaquin  Valley,  California,  a  $_____  lot  development  loan in the
Sacramento Valley,  California,  and a $288,000 charge on a lot development loan
in Northern California.

7.   To the  extent  you  continue  to  experience  increase  in OREO,  consider
     disclosing a roll-forward  of activity  within OREO in future filings (e.g.
     beginning  balance,  additions,  sales,  gains or losses and impairment and
     ending balance).

Response: The  Company  will  continue  to  monitor  its  level of OREO and will
          disclose  roll-forward  activity  within OREO in future  filings where
          material.

                                       6



The Company acknowledges that it is responsible for the adequacy and accuracy of
the  disclosures  included  in  its  SEC  filings.   Additionally,  the  Company
acknowledges  that  comments from the SEC's staff or changes to  disclosures  in
response to staff  comments do not foreclose the SEC from taking any action with
respect to the filings.  The Company will not assert staff comments from the SEC
as a defense in any  proceeding  initiated  by the SEC or any  person  under the
federal securities laws of the United States.

We appreciate your review and insights in the Company's filings. Should you need
additional  information concerning the items during your review or the responses
noted above, please contact me at (530) 898-0300.

Sincerely,

/s/ Thomas J. Reddish
- ---------------------
Thomas J. Reddish
Executive Vice President and Chief Financial Officer
TriCo Bancshaers