SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    Form 8-K

                Current Report Pursuant to Section 13 or 15(d) of
                       The Securities Exchange Act of 1934

         Date of Report (Date of earliest event reported): July 15, 2004



                              SONOMA VALLEY BANCORP
                              ---------------------
             (Exact name of registrant as specified in its charter)


   California                    000-31929                    68-0454068
   ----------                    ---------                    ----------
 (State or other          (Commission File No.)            (I.R.S. Employer
  jurisdiction                                            Identification No.)
of incorporation)



                 202 West Napa Street, Sonoma, California 95476
                 ----------------------------------------------
                    (Address of principal executive offices)

                                 (707) 935-3200
                                 --------------
              (Registrant's telephone number, including area code)

<PAGE>

Item 7. Financial Statements and Exhibits.

        Exhibit No.              Exhibit Description
        -----------              -------------------

        99                       Press release announcing second quarter results

Item 12. Results of Operations and Financial Condition.

     Sonoma Valley  Bancorp  announced its results for the second  quarter ended
June 30, 2004 on the attached press release.


<PAGE>
                                    SIGNATURE

     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.


                                           SONOMA VALLEY BANCORP,
                                           a California Corporation


Dated:  July 15, 2004                      /s/ Mel Switzer, Jr.
                                           ------------------------------------
                                           Mel Switzer, Jr.,
                                           Chief Executive Officer and President
                                           (Principal Executive Officer)

<PAGE>
                                                                      EXHIBIT 99

                                  PRESS RELEASE

                                                     FOR ADDITIONAL INFORMATION:
                                                       Contact Mel Switzer, Jr.,
                                                               President and CEO
                                                                  (707) 935-3200

                         SONOMA VALLEY BANCORP ANNOUNCES
                            TOTAL ASSETS $210 MILLION

SONOMA,  California,  July 15, 2004- Sonoma Valley Bancorp President and CEO Mel
Switzer,  Jr.  reported  that the bank posted assets of $210 million at June 30,
2004, up 8.9% from $193 million a year ago.  Deposits  grew to $188 million,  up
$18 million or 10.5% from last year.  Loans  reached $139  million,  up over $20
million or 16.9% from the second  quarter of 2003.  Earnings  for the six months
ending June 30, 2004 were $1,337,000, or $.92 per share.

Comparing  second quarter  earnings of 2004 with the same period in 2003 shows a
nominal  decline  in  earnings  of $16,000 or 2.26%,  a result of  narrower  net
interest margins,  expenses associated with the investment in our newest branch,
Banco de Sonoma,  and the additional  costs related to expensing  stock options.
The annualized  Return on Average Assets was 1.30% and the annualized  Return on
Average  Equity  was  12.45%.  The Book  Value for the  stock at period  end was
$13.54.

On May 21, 2004, the company  successfully  concluded the tender offer announced
in April,  retiring over 126,000 shares of Sonoma Valley Bancorp stock at $35.00
per share.

For the tenth year,  Findley  Reports,  Inc.  named Sonoma Valley Bancorp to its
list of SUPER PREMIER  PERFORMING  BANKS in 2003.  Bauer Financial again awarded
the Bancorp  with its highest  designation,  FIVE STAR,  noting the strength and
earnings  performance of the bank.  This is the tenth year Sonoma Valley Bancorp
has earned this recognition.

Sonoma Valley  Bancorp  shares are listed on the OTC Bulletin  Board (OTCBB) and
the stock symbol is SBNK.

This  press  release  may  contain  forward-looking  statements,  which  are not
historical  facts, but which management  believes are a benefit to shareholders.
These forward looking statements may include management's expectations regarding
future events and performance of its subsidiary,  Sonoma Valley Bank,  including

<PAGE>
such items as operating  efficiencies,  projected  growth in loans and deposits,
future operating  results and forecasts,  net interest  margin,  strength of the
local economy where Sonoma Valley Bank principally operates,  and federal fiscal
policies.  Future  events  are  difficult  to predict  and such  forward-looking
statements  contained in this press release which are not  historical  facts are
subject to risks and  uncertainties  that could cause  actual  results to differ
materially and adversely from those  expressed,  including,  but not limited to,
certain  changes in the local  economy,  changes in  interest  rates and federal
fiscal policies, and changes in competition.  In addition, the Company discusses
certain other risks and  uncertainties  related to its operations in its reports
filed with the  Securities and Exchange  Commission,  which risks and discussion
should be read in conjunction  with this press release.  The Company  assumes no
obligation to publicly revise  forward-looking  statements to reflect subsequent
events or changed circumstances.
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{"company-data": {"conformed-name": "SONOMA VALLEY BANCORP", "cik": "0001120427", "assigned-sic": "6021", "irs-number": "680454068", "state-of-incorporation": "CA", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-31929", "film-number": "04916728"}, "business-address": {"street1": "C/O SONOMA VALLEY BANCORP", "street2": "202 WEST NAPA STREET", "city": "SONOMA", "state": "CA", "zip": "95476"}}
SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    Form 8-K

                Current Report Pursuant to Section 13 or 15(d) of
                       The Securities Exchange Act of 1934

         Date of Report (Date of earliest event reported): July 15, 2004

                              SONOMA VALLEY BANCORP
                              ---------------------
             (Exact name of registrant as specified in its charter)

   California                    000-31929                    68-0454068
   ----------                    ---------                    ----------
 (State or other          (Commission File No.)            (I.R.S. Employer
  jurisdiction                                            Identification No.)
of incorporation)

                 202 West Napa Street, Sonoma, California 95476
                 ----------------------------------------------
                    (Address of principal executive offices)

                                 (707) 935-3200
                                 --------------
              (Registrant's telephone number, including area code)
Item 7. Financial Statements and Exhibits.

        Exhibit No.              Exhibit Description
        -----------              -------------------

        99                       Press release announcing second quarter results

Item 12. Results of Operations and Financial Condition.

     Sonoma Valley  Bancorp  announced its results for the second  quarter ended
June 30, 2004 on the attached press release.
SIGNATURE

     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.

                                           SONOMA VALLEY BANCORP,
                                           a California Corporation

Dated:  July 15, 2004                      /s/ Mel Switzer, Jr.
                                           ------------------------------------
                                           Mel Switzer, Jr.,
                                           Chief Executive Officer and President
                                           (Principal Executive Officer)
EXHIBIT 99

                                  PRESS RELEASE

                                                     FOR ADDITIONAL INFORMATION:
                                                       Contact Mel Switzer, Jr.,
                                                               President and CEO
                                                                  (707) 935-3200

                         SONOMA VALLEY BANCORP ANNOUNCES
                            TOTAL ASSETS $210 MILLION

SONOMA,  California,  July 15, 2004- Sonoma Valley Bancorp President and CEO Mel
Switzer,  Jr.  reported  that the bank posted assets of $210 million at June 30,
2004, up 8.9% from $193 million a year ago.  Deposits  grew to $188 million,  up
$18 million or 10.5% from last year.  Loans  reached $139  million,  up over $20
million or 16.9% from the second  quarter of 2003.  Earnings  for the six months
ending June 30, 2004 were $1,337,000, or $.92 per share.

Comparing  second quarter  earnings of 2004 with the same period in 2003 shows a
nominal  decline  in  earnings  of $16,000 or 2.26%,  a result of  narrower  net
interest margins,  expenses associated with the investment in our newest branch,
Banco de Sonoma,  and the additional  costs related to expensing  stock options.
The annualized  Return on Average Assets was 1.30% and the annualized  Return on
Average  Equity  was  12.45%.  The Book  Value for the  stock at period  end was
$13.54.

On May 21, 2004, the company  successfully  concluded the tender offer announced
in April,  retiring over 126,000 shares of Sonoma Valley Bancorp stock at $35.00
per share.

For the tenth year,  Findley  Reports,  Inc.  named Sonoma Valley Bancorp to its
list of SUPER PREMIER  PERFORMING  BANKS in 2003.  Bauer Financial again awarded
the Bancorp  with its highest  designation,  FIVE STAR,  noting the strength and
earnings  performance of the bank.  This is the tenth year Sonoma Valley Bancorp
has earned this recognition.

Sonoma Valley  Bancorp  shares are listed on the OTC Bulletin  Board (OTCBB) and
the stock symbol is SBNK.

This  press  release  may  contain  forward-looking  statements,  which  are not
historical  facts, but which management  believes are a benefit to shareholders.
These forward looking statements may include management's expectations regarding
future events and performance of its subsidiary,  Sonoma Valley Bank,  including
such items as operating  efficiencies,  projected  growth in loans and deposits,
future operating  results and forecasts,  net interest  margin,  strength of the
local economy where Sonoma Valley Bank principally operates,  and federal fiscal
policies.  Future  events  are  difficult  to predict  and such  forward-looking
statements  contained in this press release which are not  historical  facts are
subject to risks and  uncertainties  that could cause  actual  results to differ
materially and adversely from those  expressed,  including,  but not limited to,
certain  changes in the local  economy,  changes in  interest  rates and federal
fiscal policies, and changes in competition.  In addition, the Company discusses
certain other risks and  uncertainties  related to its operations in its reports
filed with the  Securities and Exchange  Commission,  which risks and discussion
should be read in conjunction  with this press release.  The Company  assumes no
obligation to publicly revise  forward-looking  statements to reflect subsequent
events or changed circumstances.