| San Mateo County Board of Supervisors | |
| House Type: | Unicameral |
| Term Limits: | 3 terms (12 years) |
| Leader1: | Dave Pine |
| Leader2: | Warren Slocum |
| Leader3: | Dave Pine |
| Leader4: | Noelia Corzo |
| Leader5: | Ray Mueller |
| Leader6: | Warren Slocum |
| Leader7: | David Canepa |
| Leader1 Type: | President |
| Election1: | 2023 |
| Leader2 Type: | Vice President |
| Election2: | 2023 |
| Leader3 Type: | Supervisor, First District |
| Election3: | 2011 |
| Leader4 Type: | Supervisor, Second District |
| Election4: | 2023 |
| Leader5 Type: | Supervisor, Third District |
| Election5: | 2023 |
| Leader6 Type: | Supervisor, Fourth District |
| Election6: | 2013 |
| Leader7 Type: | Supervisor, Fifth District |
| Election7: | 2017 |
| Political Groups1: | Officially nonpartisan
|
| Term Length: | 4 years, three term limit |
| Seats: | 5 |
| Voting System1: | Two-round system |
| Last Election1: | November 8, 2022 |
| Next Election1: | November 5, 2024 |
| Website: | https://www.smcgov.org/bos |
The San Mateo County Board of Supervisors is the five-member elected body that supervises the operation of San Mateo County, California. Board members represent one of five districts of roughly equal population within the county, elected, since a 2012 charter change, only by voters in their own district.[1] The current board members are Dave Pine (District 1), Noelia Corzo (District 2), Ray Mueller (District 3), Warren Slocum (District 4), and David Canepa (District 5).
An all-mail-ballot special election was held to fill the vacancy created when Supervisor Mark Church resigned to assume office as San Mateo County Chief Elections Officer & Assessor-County Clerk-Recorder on January 3, 2011.[2] The six candidates were San Mateo Union High School District Board President Dave Pine, San Mateo County Community College District Board of Trustees President Richard Holober, Millbrae City Council member Gina Papan, Burlingame Mayor Terry Nagel, retired aerospace engineer Demetrios Nikas, and victim advocate Michael Stogner.
Warren Slocum replaced termed-out District 4 Supervisor Rose Jacobs Gibson in January 2013 in the last at-large vote for Supervisor due to the passage of Measure B, mandating supervisorial elections by voters of the same district.
See main article: 2022 San Mateo County elections. Both District 2 Supervisor Carole Groom and District 3 Supervisor Don Horsley were termed out. San Mateo-Foster City School District Trustee Noelia Corzo beat Belmont City Councilmember Charles Stone to replace Groom and Menlo Park City Councilmember Ray Mueller beat San Carlos City Councilmember Laura Parmer-Lohan to replace Horsley.
District 5 Supervisor David Canepa is up for reelection to his third term and both District 1 Supervisor Dave Pine and District 4 Supervisor Warren Slocum are term limited.
The incumbent is Dave Pine, who has represented the district since 2011 and was re-elected in 2020.[3] He is term limited in 2024.[4]
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The incumbent is Warren Slocum, who has represented the district since 2013 and was re-elected in 2020.
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The incumbent is David Canepa, who has represented the district since 2017 and was re-elected in 2020.
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