| Election Name: | 2022 San Mateo County elections |
| Flag Image: | File:Seal of San Mateo County, California.svg |
| Type: | legislative |
| Ongoing: | no |
| Election Date: | November 8, 2022 |
| Previous Election: | 2020 San Mateo County election |
| Previous Year: | 2020 |
| Next Election: | 2024 San Mateo County elections |
| Next Year: | 2024 |
| Registered: | 432,707[1] |
| Turnout: | 58.29% (27.6 pp)[2] |
The 2022 San Mateo County elections were held on November 8, 2022, in San Mateo County, California, with nonpartisan blanket primary elections for certain offices being held on June 7. Two of the five seats of the Board of Supervisors were up for election, as well as all seven of the countywide elected officials, the Assessor-County Clerk-Recorder, the County Controller, the Coroner, the District Attorney, the Sheriff, the County Superintendent of Schools, and the Treasurer-Tax Collector.
Municipal elections in California are officially nonpartisan; candidates' party affiliations do not appear on the ballot.
| Election Name: | 2022 San Mateo County Board of Supervisors election District 2 |
| Flag Image: | File:Seal of San Mateo County, California.svg |
| Country: | San Mateo |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2018 San Mateo County Board of Supervisors election |
| Previous Year: | 2018 |
| Next Election: | 2026 San Mateo County Board of Supervisors election |
| Next Year: | 2026 |
| Registered: | 86,898 |
| Turnout: | 61.23% |
| 1Blank: | First round |
| 2Blank: | Runoff |
| Candidate1: | Noelia Corzo |
| 1Data1: | 12,635 43.00% |
| 2Data1: | 22,246 51.74% |
| Candidate2: | Charles Stone |
| 1Data2: | 13,470 45.84% |
| 2Data2: | 20,747 48.26% |
| Candidate3: | Cameron Rolfe |
| 1Data3: | 3,282 11.17% |
| 2Data3: | Eliminated |
| Supervisor | |
| Before Election: | Carole Groom |
| Posttitle: | Supervisor after election |
| After Election: | Noelia Corzo |
Incumbent District 2 Supervisor Carole Groom was term limited and unable to run for reelection. San Mateo-Foster City School District Trustee Noelia Corzo beat Belmont City Councilmember Charles Stone in a runoff.[3]
| Election Name: | 2022 San Mateo County Board of Supervisors election District 3 |
| Flag Image: | File:Seal of San Mateo County, California.svg |
| Country: | San Mateo |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2018 San Mateo County Board of Supervisors election |
| Previous Year: | 2018 |
| Next Election: | 2026 San Mateo County Board of Supervisors election |
| Next Year: | 2026 |
| Registered: | 104,024 |
| Turnout: | 67.79% |
| 1Blank: | First round |
| 2Blank: | Runoff |
| Candidate1: | Ray Mueller |
| 1Data1: | 13,888 34.45% |
| 2Data1: | 35,887 62.22% |
| Candidate2: | Laura Parmer-Lohan |
| 1Data2: | 12,778 31.70% |
| 2Data2: | 21,790 37.78% |
| Candidate3: | Virginia Chang Kiraly |
| 1Data3: | 7,986 19.81% |
| 2Data3: | Eliminated |
| Candidate4: | Steven Booker |
| 1Data4: | 5,659 14.04% |
| 2Data4: | Eliminated |
| Supervisor | |
| Before Election: | Don Horsley |
| Posttitle: | Supervisor after election |
| After Election: | Ray Mueller |
Incumbent District 2 Supervisor Don Horsley was term limited and unable to run for reelection. Menlo Park City Councilmember Ray Mueller beat San Carlos City Councilmember Laura Parmer-Lohan to replace Horsley.[8]
| Election Name: | 2022 San Mateo County Assessor-County Clerk-Recorder election |
| Flag Image: | File:Seal of San Mateo County, California.svg |
| Country: | San Mateo |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2018 San Mateo County elections |
| Previous Year: | 2018 |
| Next Election: | 2026 San Mateo County elections |
| Next Year: | 2026 |
| Registered: | 433,539 |
| Turnout: | 38.38% |
| 1Blank: | Results |
| Candidate1: | Mark Church |
| 1Data1: | 116,684 82.78% |
| Candidate2: | David Pollack |
| 1Data2: | 24,275 17.22% |
| Assessor-County Clerk-Recorder | |
| Before Election: | Mark Church |
| Posttitle: | Assessor-County Clerk-Recorder after election |
| After Election: | Mark Church |
Incumbent Assessor-County Clerk-Recorder Mark Church defeated David Pollack to win reelection. Church was first elected in 2010 and reelected in 2018.[10]
| Election Name: | 2022 San Mateo County Controller election |
| Flag Image: | File:Seal of San Mateo County, California.svg |
| Country: | San Mateo |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2018 San Mateo County elections |
| Previous Year: | 2018 |
| Next Election: | 2026 San Mateo County elections |
| Next Year: | 2026 |
| Registered: | 433,539 |
| Turnout: | 38.38% |
| 1Blank: | Results |
| Candidate1: | Juan Raigoza |
| 1Data1: | 116,406 100.00% |
| County Controller | |
| Before Election: | Juan Raigoza |
| Posttitle: | County Controller after election |
| After Election: | Juan Raigoza |
Incumbent County Controller Juan Raigoza, first elected in 2014, ran unopposed for reelection.[11]
| Election Name: | 2022 San Mateo County Coroner election |
| Flag Image: | File:Seal of San Mateo County, California.svg |
| Country: | San Mateo |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2018 San Mateo County elections |
| Previous Year: | 2018 |
| Next Election: | 2026 San Mateo County elections |
| Next Year: | 2026 |
| Registered: | 433,539 |
| Turnout: | 38.38% |
| 1Blank: | Results |
| Candidate1: | Robert Foucrault |
| 1Data1: | 119,014 99.96% |
| Candidate2: | Mark De Paula (write-in) |
| 1Data2: | 49 0.04% |
| Coroner | |
| Before Election: | Robert Foucrault |
| Posttitle: | Coroner after election |
| After Election: | Robert Foucrault |
Incumbent Coroner Robert Foucrault, who first assumed office in 2001 after the death of Coroner Adrian "Bud" Moorman died, defeated write-in candidate Mark De Paula to win reelection.
| Election Name: | 2022 San Mateo County District Attorney election |
| Flag Image: | File:Seal of San Mateo County, California.svg |
| Country: | San Mateo |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2018 San Mateo County elections |
| Previous Year: | 2018 |
| Next Election: | 2028 San Mateo County elections |
| Next Year: | 2028 |
| Registered: | 433,539 |
| Turnout: | 38.38% |
| 1Blank: | Results |
| Candidate1: | Stephen Wagstaffe |
| 1Data1: | 118,491 100.00% |
| District Attorney | |
| Before Election: | Stephen Wagstaffe |
| Posttitle: | District Attorney after election |
| After Election: | Stephen Wagstaffe |
Incumbent District Attorney Steve Wagstaffe, first elected in 2010, ran unopposed for reelection.
| Election Name: | 2022 San Mateo County Sheriff election |
| Flag Image: | File:Seal of San Mateo County, California.svg |
| Country: | San Mateo |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2018 San Mateo County elections |
| Previous Year: | 2018 |
| Next Election: | 2028 San Mateo County elections |
| Next Year: | 2028 |
| Registered: | 433,539 |
| Turnout: | 38.38% |
| 1Blank: | Results |
| Candidate1: | Christina Corpus |
| 1Data1: | 82,622 56.86% |
| Candidate2: | Carlos Bolanos |
| 1Data2: | 62,626 43.10% |
| Sheriff | |
| Before Election: | Carlos Bolanos |
| Posttitle: | Sheriff after election |
| After Election: | Christina Corpus |
| Candidate3: | Heinz Puschendorf (write-in) |
| 1Data3: | 62 0.04% |
| Image1: | Sheriff Christina Corpus.jpg |
Incumbent Sheriff Carlos Bolanos, who first assumed office in 2016 after the resignation of Sheriff Greg Munks, lost to sheriff's captain and Millbrae chief of police Christina Corpus.
| Election Name: | 2022 San Mateo County County Superintendent of Schools election |
| Flag Image: | File:Seal of San Mateo County, California.svg |
| Country: | San Mateo |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2018 San Mateo County elections |
| Previous Year: | 2018 |
| Next Election: | 2026 San Mateo County elections |
| Next Year: | 2026 |
| Registered: | 433,539 |
| Turnout: | 38.38% |
| 1Blank: | Results |
| Candidate1: | Nancy Magee |
| 1Data1: | 114,484 100.00% |
| County Superintendent of Schools | |
| Before Election: | Nancy Magee |
| Posttitle: | County Superintendent of Schools after election |
| After Election: | Nancy Magee |
Incumbent County Superintendent of Schools Nancy Magee, first elected in 2018, ran unopposed for reelection.
| Election Name: | 2022 San Mateo County Treasurer-Tax Collector election |
| Flag Image: | File:Seal of San Mateo County, California.svg |
| Country: | San Mateo |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2018 San Mateo County elections |
| Previous Year: | 2018 |
| Next Election: | 2026 San Mateo County elections |
| Next Year: | 2026 |
| Registered: | 433,539 |
| Turnout: | 38.38% |
| 1Blank: | Results |
| Candidate1: | Sandie Arnott |
| 1Data1: | 123,306 100.00% |
| Treasurer-Tax Collector | |
| Before Election: | Sandie Arnott |
| Posttitle: | Treasurer-Tax Collector after election |
| After Election: | Sandie Arnott |
Incumbent Treasurer-Tax Collector Sandie Arnott, first elected in 2010, ran unopposed for reelection.