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San Mateo, California · County government

San Mateo 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.[13]

Source checked October 26, 2026[1]

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.

Board Meeting Agendas, Calendar and Videos (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.

Agenda Builder (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
The Board of Supervisors takes pride in its open form of government and is pleased to provide state-of-the-art technology to assist the public in tracking and retrieving agendas. You may visit this link to access agendas or using the blue buttons below: County of San Mateo - Calendar [5]
Availability · Published Board/Clerk meeting guidance; check the current posted agenda for meeting-specific arrangements
Note: Official, certified copies can be obtained in person or by mail upon request from the Clerk of the Board’s Office. [6]
Availability · Published Board/Clerk meeting guidance; check the current posted agenda for meeting-specific arrangements
In the AIC, the Agenda page is a common starting point for users. You may search the Agenda database by keyword, by year, by type, and more by means of an advanced search interface (you will see the Advanced Search link to the right of the search controls). More detailed help with searching is available here . After you initiate a search, your results are returned in rows below the search interface. Legislative File numbers are hyperlinked to Detail pages. [7]
Availability · Published Board/Clerk meeting guidance; check the current posted agenda for meeting-specific arrangements
An Agenda Detail page contains a wealth of information about a specific piece of legislation - sponsors, titles, etc. Any attachments to the legislation are available here. The Agenda Detail page is where you can track Actions taken as the file moves through the legislative process. You can see how votes were cast by clicking Action Details. All details of the meeting are linked to - click Meeting Details. After meetings take place, the Clerk of the Board works hard to edit and archive Meeting Video. When the video clip has been archived, you will find a link on the Agenda Detail page. For more help with video, please go to the Video Streaming tab. [8]
Availability · Published Board/Clerk meeting guidance; check the current posted agenda for meeting-specific arrangements
San Mateo County Board of Supervisor meetings that have already been broadcast are later archived on the Calendar page. Links to Meeting Details, Agendas, Minutes, and Video are made available for each meeting after they have been prepared by the Clerk of the Board. [9]
Availability · Published Board/Clerk meeting guidance; check the current posted agenda for meeting-specific arrangements
You can view meeting information in list format, or in calendar format. Click the "List View" or "Calendar View" tabs to switch views. [10]
Availability · Published Board/Clerk meeting guidance; check the current posted agenda for meeting-specific arrangements
While Supervisor’s meetings are in progress, links become active on the Live Video Streaming page. Click the links, and a new window will open containing the video player (see player configuration info below), and also the relevant agenda document (in PDF format). [11]
Availability · Published Board/Clerk meeting guidance; check the current posted agenda for meeting-specific arrangements
After meetings take place, the Clerk of the Board works hard to edit and archive Meeting Video. When video clips has been archived, you will find links on Agenda Detail pages. Links to archived video clips are to be found everywhere legislative files are listed. [12]
Board’s official district map resource (opens in a new tab)[13]Official instructions

The Board page publishes a “Find Your District” section containing an iframe titled “BOS LP Map” from the county GIS district application. This is an information referral to the published map resource; an image label is not treated as a working query. Direct application behavior and an address-specific result were not verified.

Before you start

Availability · Official LAFCO referral to the Board district resource only; other profile figures, meeting information and county-outline imagery are outside this review
The San Mateo County Board of Supervisors is composed of five members elected to four-year terms by the public in their respective districts (see FIND YOUR DISTRICT on the Board of Supervisors website). [14]

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 checked4 source pages · 14 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] San Mateo Board of Supervisors (opens in a new tab)

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

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

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

    View supporting excerpt
    Board Meeting Agendas, Calendar and Videos
  3. [3] San Mateo Board of Supervisors (opens in a new tab)

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

    View supporting excerpt
    2026 Agenda Builder
  4. [4] Board of Supervisors Agenda Information | County of San Mateo, CA (opens in a new tab)

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

    View supporting excerpt
    The Board of Supervisors takes pride in its open form of government and is pleased to provide state-of-the-art technology to assist the public in tracking and retrieving agendas. You may visit this link to access agendas or using the blue buttons below: County of San Mateo - Calendar
  5. [5] Board of Supervisors Agenda Information | County of San Mateo, CA (opens in a new tab)

    San Mateo 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 takes pride in its open form of government and is pleased to provide state-of-the-art technology to assist the public in tracking and retrieving agendas. You may visit this link to access agendas or using the blue buttons below: County of San Mateo - Calendar
  6. [6] Board of Supervisors Agenda Information | County of San Mateo, CA (opens in a new tab)

    San Mateo 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: Official, certified copies can be obtained in person or by mail upon request from the Clerk of the Board’s Office.
  7. [7] Board of Supervisors Agenda Information | County of San Mateo, CA (opens in a new tab)

    San Mateo 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
    In the AIC, the Agenda page is a common starting point for users. You may search the Agenda database by keyword, by year, by type, and more by means of an advanced search interface (you will see the Advanced Search link to the right of the search controls). More detailed help with searching is available here . After you initiate a search, your results are returned in rows below the search interface. Legislative File numbers are hyperlinked to Detail pages.
  8. [8] Board of Supervisors Agenda Information | County of San Mateo, CA (opens in a new tab)

    San Mateo 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
    An Agenda Detail page contains a wealth of information about a specific piece of legislation - sponsors, titles, etc. Any attachments to the legislation are available here. The Agenda Detail page is where you can track Actions taken as the file moves through the legislative process. You can see how votes were cast by clicking Action Details. All details of the meeting are linked to - click Meeting Details. After meetings take place, the Clerk of the Board works hard to edit and archive Meeting Video. When the video clip has been archived, you will find a link on the Agenda Detail page. For more help with video, please go to the Video Streaming tab.
  9. [9] Board of Supervisors Agenda Information | County of San Mateo, CA (opens in a new tab)

    San Mateo 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
    San Mateo County Board of Supervisor meetings that have already been broadcast are later archived on the Calendar page. Links to Meeting Details, Agendas, Minutes, and Video are made available for each meeting after they have been prepared by the Clerk of the Board.
  10. [10] Board of Supervisors Agenda Information | County of San Mateo, CA (opens in a new tab)

    San Mateo 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
    You can view meeting information in list format, or in calendar format. Click the "List View" or "Calendar View" tabs to switch views.
  11. [11] Board of Supervisors Agenda Information | County of San Mateo, CA (opens in a new tab)

    San Mateo 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
    While Supervisor’s meetings are in progress, links become active on the Live Video Streaming page. Click the links, and a new window will open containing the video player (see player configuration info below), and also the relevant agenda document (in PDF format).
  12. [12] Board of Supervisors Agenda Information | County of San Mateo, CA (opens in a new tab)

    San Mateo 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
    After meetings take place, the Clerk of the Board works hard to edit and archive Meeting Video. When video clips has been archived, you will find links on Agenda Detail pages. Links to archived video clips are to be found everywhere legislative files are listed.
  13. [13] Board of Supervisors | County of San Mateo, CA (opens in a new tab)

    San Mateo County official district resource · Board’s official district map resource
    Source reviewed October 26, 2026

    View supporting excerpt
    Find Your District...
  14. [14] County of San Mateo | County of San Mateo, CA (opens in a new tab)

    San Mateo County official district resource · Exact official district resource purpose or limitation
    Source reviewed October 26, 2026

    View supporting excerpt
    The San Mateo County Board of Supervisors is composed of five members elected to four-year terms by the public in their respective districts (see FIND YOUR DISTRICT on the Board of Supervisors website).
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