Board of Supervisors

The Board of Supervisors Department and County Administrator’s Office are currently closed


If you have a physical document to submit, please mail it to 575 Administration, Room 100A, Santa Rosa, CA 95403.

During the Shelter in Place Order by the Sonoma County Health Officer, tort claims and lawsuits that are required to be hand-delivered to the Clerk of the Board of Supervisors will continue to be accepted by U.S. mail.

To deliver a tort claim or lawsuit in person, please deposit your documents in the Human Resources Drop Box located at 575 Administration Dr, Santa Rosa CA 95403 on the north end of the building. The Drop Box is checked daily. A tort claim or lawsuit will be deemed served on the business day before it is retrieved from the Drop Box.

Board of Supervisors meeting agendas, videos, and minutes can be found at

Assessment Appeals inquiries should be emailed to

The office for Debris Removal Insurance Collection Program is closed effective Tuesday, March 17. Staff will be checking email but our ability to respond will be limited. Please email or leave a voicemail at (707) 565-1222.

The Cannabis Office has been available on a limited basis virtually effective Tuesday, March 17. Staff will be checking email but our ability to respond will be limited. Please email Visit the Cannabis Program website for more information.

For all other matters that cannot wait, please leave a voicemail on the main Board of Supervisors/CAO phone line: (707) 565-2241. The voicemail will be checked routinely. 

For information on the Novel Coronavirus and community resources please visit or call 2-1-1.


California State Association of Counties (CSAC)
California State Association of Counties (CSAC)
places a strong emphasis on educating the public about the value and need for county programs and services.

National Association of Counties - NACO Logo

The National Association of Counties (NACo)
is the only national organization that represents county governments in the United States.

RCRC logo

The Rural County Representatives of California (RCRC) is a thirty-six member county strong service organization that champions policies on behalf of California’s rural counties.

Contact Information

County of Sonoma
Business Hours
Monday – Friday
8:00 AM – 5:00 PM
575 Administration Drive
Room 100 A
Santa Rosa, CA 95403
38.464626, -122.725441

Board Meetings

General Information

Board meetings are generally held every Tuesday at 8:30 am.

Meeting Calendar

Agendas, Minutes & Videos

Frequently Asked Questions

Supervisorial Districts

District Map

Sonoma County District Map

Enter a street address and city in the search field of the interactive map.

Assessment Appeals

Assessment Appeals

Assessment Appeals

The Assessment Appeals Board is an independent agency providing taxpayers a means to appeal their property tax assessment.

SB 272

Senate Bill 272 requires local agencies publish a list of systems that serve as original sources of data within an agency.

Read more