Filed by Humboldt  Bancorp Pursuant
                                             to Rule  425  under  the Securities
                                             Act  of   1933   and  deemed  filed
                                             pursuant  to  Rule  14a-12  of  the
                                             Securities  Exchange   Act  of 1934

                                             Subject Company:  Humboldt Bancorp
                                             Commission File No.: 0-27784



January 23, 2001
For Immediate Release

Humboldt Bancorp Reports Record Earnings for 2000

Eureka, CA, Jan 23/PRNewswire/ -- Humboldt Bancorp (NASDAQ: HBEK) today reported
record financial results for the year ended December 31, 2000.

Net income for 2000 was $6.9 million, or $1.11 per diluted share.  Compared with
prior year results,  net income  increased by 49% and diluted earnings per share
increased by 34%. The  financial  results for 2000  produced a return on average
stockholders'  equity of 15.9% and a return on average  assets of 1.28%.  Fourth
quarter  2000  net  income  was  $1.8  million,  or  $0.29  per  diluted  share,
representing increases of 30% and 21%, respectively.

"We are very proud of the  financial  results and other  accomplishments  of the
past year," remarked Theodore S. Mason,  President and Chief Executive  Officer.
"It is  important to note that we achieved our  performance  objectives  in 2000
while  significantly  growing  our  franchise  assets by 43%,  or $182  million.
Unfortunately, these excellent operating results were not reflected in our stock
price, which was down for the year."

Humboldt's net interest margin for 2000 was 5.28%,  nine basis points lower than
1999,  primarily due to the issuance of trust preferred securities in connection
with the  acquisition  of Capitol  Thrift & Loan in April 2000.  Loan growth for
2000 was $186  million,  or 81%,  including  approximately  $105 million of real
estate secured loans obtained through the Capitol Thrift & Loan acquisition.  Of
the loan growth not related to the acquisition,  approximately  45% was produced
in  the  greater   Sacramento  area  through   Humboldt's  Capitol  Valley  Bank
subsidiary, which opened in March 1999.

Total  non-interest  income for 2000 was $28  million,  an  increase of 44% over
1999, and represented 53% of total revenue.  Included in non-interest  income is
revenue associated with Humboldt's Merchant Bankcard operation,  which is ranked
among the top 25 processors in the nation.  During 2000,  the Merchant  Bankcard
division  processed  over $3.0 billion of Visa and MasterCard  transactions  and
recorded  related  revenue of $23  million,  an  increase  of 58% over 1999.  In
addition,  the Merchant  Bankcard  division  provides  funding for over 700 ATMs
throughout  the  country  that are owned and  operated  by  independent  service
organizations.  Total ATM funding revenue for 2000 was $1.8 million, an increase
of 38% over 1999. Total non-interest  income also reflects the financial results
of  Humboldt's  investment  in a leasing  company,  owned  jointly  with  Tehama
Bancorp, which is not reported on a consolidated basis. Total income recorded in
connection with the leasing company decreased by $338,000,  or 75%,  principally
due to adoption of a more  conservative  accounting  treatment  for  repossessed
collateral during the fourth quarter of 2000.

Total non-interest expense for 2000 increased by 44% over 1999, primarily due to
increases in staffing for the Merchant  Bankcard division and other bank support
functions,  as  well  as  acquisition  of  Capital  Thrift  &  Loan.  Humboldt's
efficiency  ratio for 2000 was 77.4%, an 80 basis point  improvement  over 1999.
"One of our primary  objectives  for 2001 is to focus on improving our operating
efficiency,"  remarked Mason.  "We recognize that this is an area where there is
substantial  room  for  improvement,  and we are  formulating  a plan to  obtain
measurable improvement on a linked-quarter basis going forward."

Humboldt's credit quality remained strong at year-end 2000, with  non-performing
assets  representing  0.42% of total assets.  The ratio of allowance to loans at
December 31, 2000 was 1.47%.  Net  charge-offs  as a percentage of average loans
for 2000 were 34 basis points.  Humboldt has no exposure to national  syndicated
credits.  The Merchant  Bankcard division also maintained a high level of credit
quality through active fraud risk management and recognized  losses of less than
$100,000 during 2000.

Previously, Humboldt announced the signing of a definitive agreement with Tehama
Bancorp  (OTCBB:  THMB),  based in Red Bluff,  California,  whereby Tehama would

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merge into Humboldt. Tehama Bank, the wholly owned subsidiary of Tehama Bancorp,
operates  six branches in a  four-county  area in Northern  California.  Pending
regulatory  and  shareholder  approval,  Tehama  Bank  will  become  a  separate
subsidiary  of Humboldt  Bancorp.  The merger is expected to close  during March
2001.  On  a  pro  forma  basis,  Humboldt  will  have  consolidated  assets  of
approximately $845 million after the merger is completed.

Humboldt  Bancorp,  headquartered  in Eureka,  California,  offers  consumer and
business banking services  through its three bank  subsidiaries.  Humboldt Bank,
founded  in 1989,  operates  ten  branches  located  in  Humboldt,  Trinity  and
Mendocino counties.  Capitol Valley Bank, founded in 1999, serves customers from
its  main  office  in  Roseville.  Capitol  Thrift  &  Loan,  a  state-chartered
industrial bank, operates eight offices throughout the state.

Contacts:

Theodore S. Mason          Pat Rusnak
707.269.3101               707.269.3995
tedm@hbancorp.com           prusnak@hbancorp.com

This release may contain  forward-looking  statements  that are subject to risks
and  uncertainties.  Such  risks  and  uncertainties  may  include  but  are not
necessarily  limited to fluctuations in interest  rates,  inflation,  government
regulations and general economic conditions, and competition within the business
areas in which the Company is  conducting  its  operations,  including  the real
estate market in California and other factors beyond the Company's control. Such
risks and  uncertainties  could cause results for subsequent  interim periods or
for the entire year to differ materially from those indicated.  For a discussion
of  factors,  which  could  cause  results to differ,  please see the  Company's
reports  on  Forms  10-K and 10-Q as filed  with  the  Securities  and  Exchange
Commission  and the Company's  press  releases.  Readers  should not place undue
reliance on the forward-looking statements, which reflect management's view only
as of the date hereof.  The Company  undertakes no obligation to publicly revise
these forward-looking statements to reflect subsequent events or circumstances.

Additional  Information  and  Where to Find It:  Humboldt  Bancorp  has  filed a
Registration Statement on SEC Form S-4 (File Number 333-49866), and Humboldt and
Tehama have filed a Joint Proxy  Statement/Prospectus with the SEC in connection
with the merger. Upon effectiveness, Humboldt and Tehama will mail a Joint Proxy
Statement/Prospectus   to  stockholders   of  Humboldt  and  Tehama   containing
information  about the merger.  Investors and security holders are urged to read
the Registration  Statement and the Joint Proxy  Statement/Prospectus  carefully
when  they  are  available.  The  Registration  Statement  and the  Joint  Proxy
Statement/Prospectus will contain important information about Humboldt,  Tehama,
the  merger,  the persons  soliciting  proxies  relating  to the  merger,  their
interests in the merger,  and related  matters.  Investors and security  holders
will be able to obtain  free  copies  of these  documents  through  the web site
maintained by the SEC at http://www.sec.gov.  When available, free copies of the
Joint Proxy  Statement/Prospectus and these other documents may also be obtained
from Humboldt by mail to Humboldt Bancorp,  P.O. Box 1007,  Eureka,  California,
95502, attention: Chief Financial Officer, telephone, (707) 269-3995.

In   addition   to   the   Registration    Statement   and   the   Joint   Proxy
Statement/Prospectus,  Humboldt and Tehama file annual,  quarterly,  and special
reports,  proxy statements and other  information with the SEC. You may read and
copy any reports, statement, or other information filed by Humboldt or Tehama at
the SEC public  reference  rooms in New York, New York,  and Chicago,  Illinois.
Please  call the SEC at (800)  SEC-0330  for further  information  on the public
reference rooms. Humboldt's and Tehama's filings with the SEC are also available
to the public from  commercial  document-retrieval  services and at the web site
maintained by the SEC at http://www.sec.gov.

Participants in Solicitation:  Humboldt, its directors,  executive officers, and
certain other members of management and employees may be soliciting proxies from
Humboldt  stockholders  in favor of the  issuance of common stock in the merger.
Their ownership  interest in Humboldt and interest in the proposed merger is set
forth in the  Registration  Statement and the Joint Proxy  Statement  Prospectus
filed with the SEC.

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                                                                                 HUMBOLDT BANCORP
                                                                  (dollars in thousands except per share data)
                                                                                   (unaudited)

                                                         For the Year Ended                  For the three months ended
                                                             December 31,                          December 31,
                                                    -------------------------                --------------------------
                                                         2000         1999          Change       2000           1999          %
                                                    -------------  ------------   --------- -------------  ------------   --------

Income Statement Data
    Interest income                                 $   42,848     $   25,240        69.8%  $   12,154     $    7,396        64.3%
    Interest expense                                $   17,878     $    8,345       114.2%  $    5,436     $    2,710       100.6%
    Net interest income                             $   24,970     $   16,895        47.8%  $    6,718     $    4,686        43.4%
    Loan loss provision                             $    1,815     $    1,046        73.5%  $      213     $      349       -39.0%
    Net Interest income
      after loan loss provision                     $   23,155     $   15,849        46.1%  $    6,505     $    4,337        50.0%
    Noninterest income                              $   28,017     $   19,523        43.5%  $    7,046     $    5,731        22.9%
    Noninterest expense                             $   41,030     $   28,494        44.0%  $   10,910     $    7,917        37.8%
    Income before income taxes                      $   10,142     $    6,878        47.5%  $    2,641     $    2,151        22.8%
    Provision for income taxes                      $    3,287     $    2,271        44.7%  $      806     $      734         9.8%
    Net income                                      $    6,855     $    4,607        48.8%  $    1,835     $    1,417        29.5%

                                                     December 31,  December 31,              December 31,   December 31,
                                                        2000           1999                     2000           1999
                                                    -------------  ------------             -------------  ------------
Balance Sheet Data ( at period end)
    Earning assets                                  $  114,275     $  136,735       -16.4%  $  114,275     $  136,735       -16.4%
    Loans, gross                                    $  414,026     $  228,476        81.2%  $  414,026     $  228,476        81.2%
    Total assets                                    $  605,428     $  423,649        42.9%  $  605,428     $  423,649        42.9%
    Total deposits                                  $  506,808     $  378,630        33.9%  $  506,808     $  378,630        33.9%
    Total shareholders' equity                      $   50,785     $   34,139        48.8%  $   50,785     $   34,139        48.8%

                                                     December 31,  December 31,              December 31,   December 31,
                                                        2000           1999                     2000           1999
                                                    -------------  ------------             -------------  ------------
Balance Sheet Data ( averages)
    Earning assets                                  $  130,428     $  113,829        14.6%  $  121,035     $  161,414       -25.0%
    Loans, gross                                    $  342,351     $  199,351        71.7%  $  400,793     $  210,280        90.6%
    Total assets                                    $  537,600     $  363,821        47.8%  $  594,342     $  426,528        39.3%
    Total deposits                                  $  473,345     $  322,603        46.7%  $  513,504     $  382,191        34.4%
    Total shareholders' equity                      $   43,040     $   30,056        43.2%  $   46,274     $   31,635        46.3%


                                                         For the Year Ended                  For the three months ended
                                                             December 31,                          December 31,
                                                    ---------------------------              --------------------------
                                                         2000         1999          Change       2000           1999          %
                                                    -------------  ------------   ---------  ------------  ------------   --------
Share Data (a)
    Basic earning per common share                        1.19           0.91        30.8%        0.31           0.27        14.8%
    Diluted earnings per common share                     1.11           0.83        33.7%        0.29           0.24        20.8%
    Basic average shares outstanding                 5,764,080      5,048,547        14.2%   5,949,804      5,214,896        14.1%
    Fully diluted average shares outstanding         6,186,582      5,556,821        11.3%   6,327,903      5,821,091         8.7%
    Book value per common share                     $     8.49     $     6.56        29.4%  $     8.49     $     6.56        29.4%
    Leverage ratio                                        8.76%          7.50%       16.8%        8.76%          7.50%       16.8%

Selected Ratios
    Return on average
        shareholders' equity                             15.93%         15.33%        3.9%       15.78%         17.77%      -11.2%
    Return an average total assets                        1.28%          1.27%        0.8%        1.23%          1.32%       -6.8%
    Net interest margin                                   5.28%          5.39%       -2.0%        5.12%          5.00%        2.4%
    Efficiency ratio (b)                                 77.43%         78.24%       -1.0%       79.26%         76.00%        4.3%

Asset Quality Data
    Allowance for loan losses                       $    6,089     $    3,354        81.5%  $    6,089     $    3,354        81.5%
    Allowance to ending total loans                       1.47%          1.47%        0.0%        1.47%          1.47%        0.0%
    Non-performing Assets  (b )                          2,515          1,048       140.0%       2,515          1,048       140.0%
    Non-performing Assets to Total Assets                 0.42%          0.25%       68.0%        0.42%          0.25%       68.0%
    Net Charge off                                  $    1,163     $      759        53.2%  $      393     $      246        59.8%
    Net Charge off to avg.  loans                         0.34%          0.38%      -10.5%        0.10%          0.12%      -16.7%
    Provision to avg. loans                               0.53%          0.52%        1.9%        0.05%          0.17%      -70.6%
    Allowance to non-performing loans                   332.01%        361.42%       -8.1%      332.01%        361.42%       -8.1%


Notes:
(a)  Adjusted to reflect a five-for-two  stock split in 1999, 10% stock dividend
     declared in January 2000.

(b)  Nonperforming  assets consist of loans  contractually  past due > 90 days,
     nonaccrual loans, and OREO.