2024 San Mateo County elections

The 2024 San Mateo County elections are scheduled to be held on November 5, 2024, in San Mateo County, California, with nonpartisan blanket primary elections for certain offices being held on March 5. Three of the five seats of the Board of Supervisors are up for election.

Municipal elections in California are officially nonpartisan; candidates' party affiliations do not appear on the ballot.

Board of Supervisors District 1
The incumbent is Dave Pine, who has represented the district since 2011 and was re-elected in 2020. He is term limited in 2024.

Declared

 * Ann Schneider, Millbrae city councilor
 * Jackie Speier, former U.S. Representative from CA's 14th congressional district (2008-2023) and former San Mateo County supervisor (1980-1986)

Withdrew

 * Emily Beach, Burlingame city councilor and candidate for CA's 14th congressional district in 2022 (endorsed Jackie Speier)
 * Gina Papan, Millbrae city councilor (endorsed Jackie Speier)
 * Jorge Quezada Flores

Declined

 * James Coleman, South San Francisco city councilor
 * Anders Fung, Millbrae city councilor
 * Maurice Goodman, Millbrae city councilor
 * Rico Medina, San Bruno mayor
 * Ricardo Ortiz, Burlingame city councilor
 * Irving Torres, housing advocate

Board of Supervisors District 4
The incumbent is Warren Slocum, who has represented the district since 2013 and was re-elected in 2020.

Declared

 * Paul Bocanegra, juvenile justice advocate
 * Celeste Brevard, project manager
 * Maggie Cornejo, former county legislative aide
 * Lisa Gauthier, East Palo Alto city councilor
 * Antonio Lopez, East Palo Alto city councilor

Declined

 * Alicia Aguirre, Redwood City city councilor
 * Ian Bain, former Redwood City city councilor
 * Drew Combs, Menlo Park city councilor
 * Giselle Hale, former Redwood City city councilor
 * Cecilia Taylor, Menlo Park city councilor

Board of Supervisors District 5
The incumbent is David Canepa, who has represented the district since 2017 and was re-elected in 2020.

Declared

 * David Canepa, incumbent supervisor