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Contra Costa, California · County government

Contra Costa County Board of Supervisors

County governing board and clerk meeting resources, with separate evidence for the published role and each agenda or participation referral.[1] Publishes reviewed supervisory district maps, lookup instructions or named official referrals. A map link does not establish an address-specific representation result.[11]

Source checked October 26, 2026[1]
Go to the official website (opens in a new tab)
Website address
www.contracosta.ca.gov

Opens this office’s own website. CountyWiki does not process applications, take payments or provide personal records.

Contact details & office locations ↓
County governing-board information. Meeting dates, locations and participation channels must be checked against the posted agenda. Individual supervisor district boundaries are not inferred from the county navigation map.

Online services & information

Use the links below for official services and provider information. Check each service’s instructions and service area.

Official board and clerk information (opens in a new tab)[1]Official instructions

Read the county's official board or clerk page and follow its published meeting resources.

Meeting & Agendas (opens in a new tab)[2]Official instructions

Official board-page referral. Open the current agenda to confirm the meeting date, location and participation instructions; an archive or live-stream link does not establish that a meeting is in progress.

Board of Supervisors Meeting (opens in a new tab)[3]Official instructions

Official board-page referral. Open the current agenda to confirm the meeting date, location and participation instructions; an archive or live-stream link does not establish that a meeting is in progress.

Board meeting access and participation information (opens in a new tab)[4]Official instructions

Read the published Board/Clerk meeting guidance. Use the current posted agenda for the date, location and participation channels; archive access or an old meeting notice does not establish current meeting availability.

Before you start

Availability · Published Board/Clerk meeting guidance; check the current posted agenda for meeting-specific arrangements
Go to the Clerk of the Boards meeting calendar, Legistar, to learn more about upcoming meeting & agendas for the Board of Supervisors, advisory bodies to the Board of Supervisors along with other county committees, and commissions. [5]
Availability · Published Board/Clerk meeting guidance; check the current posted agenda for meeting-specific arrangements
Please visit the Costa Costa's meeting repository on the Laserfiche platform for all agendas, minutes, resolutions and ordinances. [6]
Availability · Published Board/Clerk meeting guidance; check the current posted agenda for meeting-specific arrangements
*Note: In 2024 Contra Costa transitioned meeting platforms and not all committees and commissioned moved at the same time, users may need to check both sites for a full list of 2024 meetings and minutes. [7]
Availability · Published Board/Clerk meeting guidance; check the current posted agenda for meeting-specific arrangements
The Board of Supervisors holds regular meetings at the County Administration Building, 1025 Escobar Street, Martinez. Meetings are held on Tuesdays beginning at 9:00 a.m., however they do not occur on every Tuesday. Please check the calendar on the County homepage to see the dates of upcoming meetings. All meetings are open to the public, and the public is encouraged to attend. Persons who wish to address the Board should complete the form provided for that purpose and furnish a copy of any written statement to the Clerk. [8]
Availability · Published Board/Clerk meeting guidance; check the current posted agenda for meeting-specific arrangements
Persons who wish to speak on matters set for PUBLIC HEARINGS will be heard when the Chair calls for comments from those persons who are in support thereof or in opposition thereto. PERSONS WHO WISH TO ADDRESS THE BOARD MAY BE LIMITED TO TWO (2) MINUTES. After persons have spoken, the hearing is closed and the matter is subject to discussion and action by the Board. [9]
Accessibility · Published Board/Clerk meeting guidance; check the current posted agenda for meeting-specific arrangements
The County will provide reasonable accommodations for disabled individuals planning to attend Board meetings who contract the Clerk of the Board at (925) 655-2000; TDD (925) 655-2000. An assistive listening device is available from the Clerk. [10]
Official supervisor district lookup and map guidance (opens in a new tab)[11]Official instructions

Follow the county-published district guidance or named official referral. No address, parcel or person query was performed, and no representation result is inferred from the county navigation map.

Before you start

Availability · Published supervisor district guidance; no address or parcel query was performed
Below is an interactive map of Contra Costa County showing the elected officials for each of its five Supervisorial Districts. Click on the plus (+) sign to zoom in and click and drag to look around the map. You can enter your address and city in the Search bar on the top right of the map below to find the County Supervisor who represents you. The contact information for each Supervisor will appear to the left of the map. If you zoom in, only the information for the Supervisor(s) of the currently visible District(s) will appear. [12]

Fees

Fees are quoted only when a source document supports the amount and conditions.

Fee amounts have not been reviewed for this office.

Check the official website for its current fee schedule. No fee should be assumed to be free.

Forms & documents

Official forms and document pages for this office’s services.

Forms have not been reviewed yet. Visit the official website for the current forms and instructions.

Sources & last checked3 source pages · 13 citations

Sources were checked by an AI-assisted research process. A checked website does not mean every service or fee on it has been reviewed.

  1. [1] Contra Costa Board of Supervisors (opens in a new tab)

    Contra Costa official referral · Official board or clerk page, named board identity
    Source reviewed October 26, 2026

    View supporting excerpt
    Board of Supervisors
  2. [2] Contra Costa Board of Supervisors (opens in a new tab)

    Contra Costa official referral · Official board page, exact named meeting resource or published participation paragraph
    Source reviewed October 26, 2026

    View supporting excerpt
    Meeting & Agendas
  3. [3] Contra Costa Board of Supervisors (opens in a new tab)

    Contra Costa official referral · Official board page, exact named meeting resource or published participation paragraph
    Source reviewed October 26, 2026

    View supporting excerpt
    Board of Supervisors Meeting
  4. [4] Meetings & Agendas | Contra Costa County, CA Official Website (opens in a new tab)

    Contra Costa County official Board/Clerk resource · Official Board/Clerk resource: exact reviewed meeting access and participation paragraph
    Source reviewed October 26, 2026

    View supporting excerpt
    Go to the Clerk of the Boards meeting calendar, Legistar, to learn more about upcoming meeting & agendas for the Board of Supervisors, advisory bodies to the Board of Supervisors along with other county committees, and commissions.
  5. [5] Meetings & Agendas | Contra Costa County, CA Official Website (opens in a new tab)

    Contra Costa County official Board/Clerk resource · Official Board/Clerk resource: exact reviewed meeting access / participation / language / accessibility paragraph
    Source reviewed October 26, 2026

    View supporting excerpt
    Go to the Clerk of the Boards meeting calendar, Legistar, to learn more about upcoming meeting & agendas for the Board of Supervisors, advisory bodies to the Board of Supervisors along with other county committees, and commissions.
  6. [6] Meetings & Agendas | Contra Costa County, CA Official Website (opens in a new tab)

    Contra Costa County official Board/Clerk resource · Official Board/Clerk resource: exact reviewed meeting access / participation / language / accessibility paragraph
    Source reviewed October 26, 2026

    View supporting excerpt
    Please visit the Costa Costa's meeting repository on the Laserfiche platform for all agendas, minutes, resolutions and ordinances.
  7. [7] Meetings & Agendas | Contra Costa County, CA Official Website (opens in a new tab)

    Contra Costa County official Board/Clerk resource · Official Board/Clerk resource: exact reviewed meeting access / participation / language / accessibility paragraph
    Source reviewed October 26, 2026

    View supporting excerpt
    *Note: In 2024 Contra Costa transitioned meeting platforms and not all committees and commissioned moved at the same time, users may need to check both sites for a full list of 2024 meetings and minutes.
  8. [8] Meetings & Agendas | Contra Costa County, CA Official Website (opens in a new tab)

    Contra Costa County official Board/Clerk resource · Official Board/Clerk resource: exact reviewed meeting access / participation / language / accessibility paragraph
    Source reviewed October 26, 2026

    View supporting excerpt
    The Board of Supervisors holds regular meetings at the County Administration Building, 1025 Escobar Street, Martinez. Meetings are held on Tuesdays beginning at 9:00 a.m., however they do not occur on every Tuesday. Please check the calendar on the County homepage to see the dates of upcoming meetings. All meetings are open to the public, and the public is encouraged to attend. Persons who wish to address the Board should complete the form provided for that purpose and furnish a copy of any written statement to the Clerk.
  9. [9] Meetings & Agendas | Contra Costa County, CA Official Website (opens in a new tab)

    Contra Costa County official Board/Clerk resource · Official Board/Clerk resource: exact reviewed meeting access / participation / language / accessibility paragraph
    Source reviewed October 26, 2026

    View supporting excerpt
    Persons who wish to speak on matters set for PUBLIC HEARINGS will be heard when the Chair calls for comments from those persons who are in support thereof or in opposition thereto. PERSONS WHO WISH TO ADDRESS THE BOARD MAY BE LIMITED TO TWO (2) MINUTES. After persons have spoken, the hearing is closed and the matter is subject to discussion and action by the Board.
  10. [10] Meetings & Agendas | Contra Costa County, CA Official Website (opens in a new tab)

    Contra Costa County official Board/Clerk resource · Official Board/Clerk resource: exact reviewed meeting access / participation / language / accessibility paragraph
    Source reviewed October 26, 2026

    View supporting excerpt
    The County will provide reasonable accommodations for disabled individuals planning to attend Board meetings who contract the Clerk of the Board at (925) 655-2000; TDD (925) 655-2000. An assistive listening device is available from the Clerk.
  11. [11] Find my Supervisor | Contra Costa County, CA Official Website (opens in a new tab)

    Contra Costa County official Board/Clerk resource · Official Board/Clerk resource: exact reviewed named district resource referral (Find my Supervisor | Contra Costa County, CA Official Website)
    Source reviewed October 26, 2026

    View supporting excerpt
    Below is an interactive map of Contra Costa County showing the elected officials for each of its five Supervisorial Districts. Click on the plus (+) sign to zoom in and click and drag to look around the map. You can enter your address and city in the Search bar on the top right of the map below to find the County Supervisor who represents you. The contact information for each Supervisor will appear to the left of the map. If you zoom in, only the information for the Supervisor(s) of the currently visible District(s) will appear.
  12. [12] Find my Supervisor | Contra Costa County, CA Official Website (opens in a new tab)

    Contra Costa County official Board/Clerk resource · Official Board/Clerk resource: exact reviewed specific district lookup instructions or scope
    Source reviewed October 26, 2026

    View supporting excerpt
    Below is an interactive map of Contra Costa County showing the elected officials for each of its five Supervisorial Districts. Click on the plus (+) sign to zoom in and click and drag to look around the map. You can enter your address and city in the Search bar on the top right of the map below to find the County Supervisor who represents you. The contact information for each Supervisor will appear to the left of the map. If you zoom in, only the information for the Supervisor(s) of the currently visible District(s) will appear.
  13. [13] Meetings & Agendas | Contra Costa County, CA Official Website (opens in a new tab)

    Contra Costa County official Board/Clerk resource · Official Board/Clerk resource: exact reviewed purpose-specific staff contact
    Source reviewed October 26, 2026

    View supporting excerpt
    The County will provide reasonable accommodations for disabled individuals planning to attend Board meetings who contract the Clerk of the Board at (925) 655-2000; TDD (925) 655-2000. An assistive listening device is available from the Clerk.
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