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November 3, 2026 · San Mateo County

San Mateo County ballot

What voters in San Mateo County decide on November 3, 2026: the contests and candidates, from the official lists.

Recent updates

  1. Ballots are in the mail and early voting has begun Counties began mailing ballots, and early voting sites and drop boxes opened. Register by October 19, or register and vote the same day through Election Day, November 3. California Secretary of State, key dates and deadlines
  2. Sergio Lopez files to run for State Assembly, District 23 in 2028 Sergio Lopez (Democratic) filed a statement of intention (Form 501) with the Secretary of State. A filing is a statement of intent, not a place on the ballot. Cal-Access
  3. The Secretary of State certifies the candidates for November 3 The certified list names the candidates for every state and federal contest on the ballot, including the new congressional districts approved by voters in November 2025. California Secretary of State, Certified List of Candidates
  4. Atherton cancels its November election and appoints four to the council The number of candidates did not exceed the seats, so the Town Council appointed them in lieu of an election. The Almanac, August 18, 2026
  5. Katherine Koehlmoos files to run for State Senate, District 11 in 2028 Katherine Koehlmoos (Democratic) filed a statement of intention (Form 501) with the Secretary of State. A filing is a statement of intent, not a place on the ballot. Cal-Access

SFBAYHCC does not endorse candidates in these pages. Every candidate in a contest gets the same fields, listed in the order the official source lists them. Key dates and the 2028 calendar are on the Elections page.

Statewide offices

Congress

State Legislature and Board of Equalization

State Board of Equalization, District 2

Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Sonoma

Party endorsements are each party's official list, linked on each tag; a party preference on the ballot is not an endorsement. How we report endorsements.

California Secretary of State

County

Cities

Belmont

Brisbane

Brisbane City Council

2 seats
  • Julie Sims Small Business Owner
  • Charles Spencer Small Business Owner
  • Madison Davis IncumbentIncumbent
  • Chaya-Bella David Community Volunteer
  • Christopher Hornick Businessman / Entrepreneur

Official candidate list

Burlingame

Councilmember, District 3, Burlingame

  • Jen Faber Education Foundation Director
  • Howard Wettan City Commissioner / Attorney

Official candidate list

Colma

Daly City

Daly City City Council

3 seats

Party endorsements are each party's official list, linked on each tag; a party preference on the ballot is not an endorsement. How we report endorsements.

Official candidate list

East Palo Alto

East Palo Alto City Council

2 seats

Party endorsements are each party's official list, linked on each tag; a party preference on the ballot is not an endorsement. How we report endorsements.

Official candidate list

Foster City

Half Moon Bay

Menlo Park

Millbrae

Councilmember, District 3, Millbrae

  • Juan Gámez Business Consultant / Parent
  • Ann Schneider Community Volunteer

Official candidate list

Pacifica

Portola Valley

Redwood City

San Bruno

San Carlos

San Carlos City Council

3 seats

Party endorsements are each party's official list, linked on each tag; a party preference on the ballot is not an endorsement. How we report endorsements.

Official candidate list

San Mateo

South San Francisco

Woodside

Local measures

Belmont measures

  • Measure Y Special tax on improved property square footage for the Barrett Community Center (citizen initiative)

Official source

Brisbane measures

  • Measure X Business license tax: single gross-receipts formula

Official source

East Palo Alto measures

  • Measure O General obligation bond (up to $125 million) for civic center, water, stormwater and park projects
  • Measure CC City Council term limits (three consecutive full terms)

Official source

Half Moon Bay measures

  • Measure I Local Coastal Land Use Plan change to the Measure D downtown area definition
  • Measure Q Referendum on Ordinance 2026-01 (Kelly Avenue affordable senior agricultural worker housing agreements)

Official source

Menlo Park measures

  • Measure P Downtown Parking Plazas Ordinance (citizen initiative)

Official source

Pacifica measures

  • Measure BB One-cent transactions and use (sales) tax

Official source

Redwood City measures

  • Measure E Rent control and eviction limits

Official source

San Bruno measures

  • Measure S Repeal of Ordinance 1284 voter-approval requirement for certain development projects
  • Measure DD Prohibit sale, use and discharge of safe and sane fireworks
  • Measure EE Business license tax restructure based on gross receipts

Official source

San Carlos measures

  • Measure G One-half cent transactions and use (sales) tax

Official source

San Mateo measures

  • Measure H One-quarter cent transactions and use (sales) tax
  • Measure F Charter amendments

Official source

San Mateo County measures

  • Measure L Measure L: County Charter amendment adding long-term resilience to extreme weather events as a County priority in the Charter's Preamble (majority vote)
  • Measure AA Measure AA: County Charter amendment adding to the Preamble the County's commitment to the dignity, civil rights and equal protection of all County residents (majority vote)
  • Measure J Measure J: County Charter amendment extending from 30 to 60 days the time the Board has to appoint or call a special election to fill a vacancy in an elective county office other than the Board, and requiring a public meeting before an appointment (majority vote)
  • Measure U Measure U: County Charter amendment requiring the five supervisorial districts to be reapportioned after each federal census by an independent redistricting commission instead of by Board ordinance (majority vote)
  • Regional Transit Measure (no letter on the county list): citizen-initiative sales tax for the Public Transit Revenue Measure District covering Alameda, Contra Costa, San Mateo and Santa Clara counties and San Francisco; 0.5% in the four counties and 1.0% in San Francisco, 14 years, about $980 million a year (majority vote)
  • Measure V Measure V: San Mateo County Community College District bond (55% approval; the district covers the whole county)

Official source

Statewide propositions

Statewide propositions

  • Proposition 1 Authorizes Bonds For Housing Affordability Programs. Legislative Statute.
  • Proposition 2 Increases State's Rainy Day Fund. Legislative Constitutional Amendment.
  • Proposition 3 Provides Permanent Funding For Schools And Health Care By Extending Existing Tax On High Incomes. Initiative Constitutional Amendment.
  • Proposition 4 Repeals Prohibition Against Public Funding Of Election Campaigns. Legislative Statute.
  • Proposition 5 Changes Recall Election Process For Statewide Officers. Legislative Constitutional Amendment.
  • Proposition 37 Creates Loan Program For Middle-Income Buyers Of Qualified New Homes. Initiative Statute.
  • Proposition 38 Authorizes Bonds For Immunology Medical Research. Initiative Statute.
  • Proposition 39 Prohibits Citizens From Voting Unless They Present Government-Issued Identification. Initiative Constitutional Amendment.
  • Proposition 40 Imposes One-Time Tax On Certain Taxpayers. Initiative Constitutional Amendment And Statute.
  • Proposition 41 Prohibits New State Taxes That Exclude Revenues From State Spending Limit. Requires Audits For New State Special Taxes. Initiative Constitutional Amendment.
  • Proposition 42 Prohibits New State Personal Property Taxes And Certain Retroactive State Taxes. Initiative Constitutional Amendment.
  • Proposition 43 Limits Voters' Ability To Raise Revenues For Local Government Services. Legislative Constitutional Amendment.
  • Proposition 44 Requires Community Health Clinics Spend 90% Of Revenue On Program Services. Initiative Statute.
  • Proposition 45 Modifies Environmental Review For Certain Projects. Initiative Statute.

California Secretary of State

Official source: San Mateo County Assessor-County Clerk-Recorder & Elections (ACRE), Chief Elections Officer Mark Church; results at the county's results page.

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