Call
the Map
2026 midtermsResults

2026 results · California · county

San Mateo County, California

Becerra carried San Mateo County by 51.4 points in the race for governor, 1.0 points more Democratic than the 2024 presidential vote here (D+50.3). 11 races have votes counted here.

Votes counted, governor
277,729
84% of the 330,510 votes for president in 2024
2026 margin
D+51.4
2024 president
D+50.3
Shift from 2024
1.0 pts → D
In California
5th of 58
The 5th best county for Becerra of the 58 counted; 18th for turnout against 2024.

Statewide races

  • California GovernorXavier Becerra won · D+31.2 across the state
    75.7% Xavier Becerra24.3% Steve Hilton
    D+51.4277,729 votes
    1.0 pts → D2024 D+50.3
  • California Attorney GeneralRob Bonta won · D+30.9 across the state
    76.1% Rob Bonta23.9% Michael E. Gates
    D+52.1272,948 votes
    1.8 pts → D2024 D+50.3
  • California Board of Equalization District 2Sally J. Lieber won · Lieber +19.1 across the state
    54.5% Sally J. Lieber45.5% John Pimentel
    Lieber +9.1233,737 votes
    —no 2024 return
  • California ControllerMalia M. Cohen won · D+31.0 across the state
    75.4% Malia M. Cohen24.6% Herb W Morgan
    D+50.7271,073 votes
    0.4 pts → D2024 D+50.3
  • California Insurance CommissionerJane Kim won · Kim +8.5 across the state
    59.3% Jane Kim40.7% Ben Allen
    Kim +18.6246,678 votes
    31.7 pts → R2024 D+50.3
  • California Lieutenant GovernorFiona Ma won · D+31.0 across the state
    76.3% Fiona Ma23.7% Gloria Romero
    D+52.6273,088 votes
    2.3 pts → D2024 D+50.3
  • California Secretary of StateShirley N. Weber won · D+33.1 across the state
    77.0% Shirley N. Weber23.0% Donald P. (Don) Wagner
    D+54.1273,092 votes
    3.7 pts → D2024 D+50.3
  • California Superintendent of Public InstructionRichard Barrera won · Barrera +18.1 across the state
    61.9% Richard Barrera38.1% Sonja Shaw
    Barrera +23.9221,162 votes
    26.5 pts → R2024 D+50.3
  • California TreasurerEleni Kounalakis won · D+31.4 across the state
    76.1% Eleni Kounalakis23.9% Jennifer Hawks
    D+52.2271,590 votes
    1.8 pts → D2024 D+50.3

The House

San Mateo County is split between 2 districts; each line is the county’s own part of that district.

  • California 15th DistrictSan Mateo County's part of the district · Kevin Mullin won · D+59.9 across the district
    79.8% Kevin Mullin20.2% Charles Hoelter
    D+59.5215,640 votes
    9.9 pts → D2024 D+49.6
  • California 16th DistrictSan Mateo County's part of the district · Sam Liccardo won · D+55.9 across the district
    79.5% Sam Liccardo20.5% Peter Sundin Soulé
    D+59.056,704 votes
    3.6 pts → D2024 D+55.4

Also on the ballot here, with nothing counted in this county yet: California Board of Equalization District 1, California Board of Equalization District 3, California Board of Equalization District 4. Counts come from each race’s official source, named on its own page. Margins are the leading two candidates’ difference in points of all votes counted. 2024 is the presidential vote, Harris against Trump, on the same ground (for a House district, the county’s part of it). A county is not compared with 2024 until a quarter of its 2024 vote is counted. Ranks are among the state’s counties with votes counted in the same race.