Board of Supervisors

Upcoming Ordinance

The review and comment period by stakeholders for development and adoption of the Sonoma County EMS Ordinance has been initiated.

The stakeholder comment period will close July 18, 2017

View the draft Ordinance

  • Agricultural Preservation and Open Space District
    Published on June 22, 2017

    On the Board of Supervisors Agenda for July 18, 2017:

    The proposed Mitigation Policy has been developed for use by Agricultural Preservation and Open Space District staff and the General Manager in the evaluation of environmental mitigation-related proposals for District-protected lands, including conservation easements and District-owned properties.

  • General Services
    Published on June 5, 2017

    On the Board of Supervisors Agenda for June 20, 2017:

    The Board of Supervisors of the County of Sonoma (“County”) will conduct a public hearing to consider adoption of an ordinance approving a Development and Disposition agreement authorizing the sale of approximately 82 acres of 117 acres of real property owned by the County.

  • More News


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.

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.

Sonoma County Annual Reports

2016 Sonoma County Annual Report

Enrich, Inspire, Connect

Annual Report 2016

Investing in beautiful, thriving & sustainable communities for all

Assessment Appeals

Assessment Appeals

Assessment Appeals

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

Lytton Rancheria Fact Sheet

Published on August 27, 2015 On May 21, 2015

Sonoma County Memorandum of Agreement Fact Sheet Regarding Lytton Rancheria Residential Development and Fee-to-Trust Project

Read More

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


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