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San Mateo County

765,436 Population
445,212 Voters
Countywide District 1 District 2 District 3 District 4 District 5
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San Mateo County

765,436 Population
445,212 Voters
Countywide District 1 District 2 District 3 District 4 District 5

Unlock full voter and turnout data for San Mateo Voter counts, turnout history, and demographics—ready for your next briefing in minutes, not hours.

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How San Mateo County Voted

2024 Primary

Year
2025 2024 2022 2021 2020 2019 2018 2016 2015 2014 2012
Type
General Primary Special
How they voted in other elections San Mateo County's election results
16 races analyzed
|
Statewide & Federal 8
President - Democrat Joseph R Biden Jr ~XX% +90.0%
Joseph R Biden Jr
~XX% +90.0% ~XXX,XXX
Marianne Williamson
~X% -90.0% ~X,XXX
Dean Phillips
~X% -90.1% ~X,XXX
Gabriel Cornejo
~X% -92.3% ~XXX
Armando Mando Perez Serrato
~X% -92.4% ~XXX
President R Boddie
~X% -92.5% ~XXX
Stephen P Lyons
~X% -92.5% ~XXX
Eban Cambridge
~X% -92.6% ~XXX
~XXX,XXX total votes
President - Republican Donald J. Trump ~XX% +38.6%
Donald J. Trump
~XX% +38.6% ~XX,XXX
Nikki Haley
~XX% -38.6% ~X,XXX
Ron De Santis
~X% -65.4% ~XXX
Chris Christie
~X% -65.7% ~XXX
Vivek Ramaswamy
~X% -66.5% ~XXX
David Stuckenberg
~X% -66.9% ~XX
Ryan L Binkley
~X% -66.9% ~XX
Asa Hutchinson
~X% -66.9% ~XX
Rachel Swift
~X% -67.0% ~XX
~XX,XXX total votes
President - American Independent James Bradley ~XX%
James Bradley
~XX% ~XXX
~XXX total votes
President - Green Jill Stein ~XX%
Jill Stein
~XX% ~XXX
~XXX total votes
President - Libertarian Charles Ballay ~XX%
Charles Ballay
~XX% ~XXX
~XXX total votes
President - PAF Claudia De La Cruz ~XX% +8.5%
Claudia De La Cruz
~XX% +8.5% ~XXX
Cornel West
~XX% -8.5% ~XXX
Jasmine Sherman
~X% -40.3% ~XX
~XXX total votes
U.S. Senator Adam B. Schiff ~XX% +22.3%
Adam B. Schiff
~XX% +22.3% ~XX,XXX
Katie Porter
~XX% -22.3% ~XX,XXX
Steve Garvey
~XX% -24.4% ~XX,XXX
Barbara Lee
~XX% -28.3% ~XX,XXX
Eric Early
~X% -39.0% ~X,XXX
James Bradley
~X% -40.3% ~X,XXX
Jonathan Reiss
~X% -40.6% ~X,XXX
Sepi Gilani
~X% -40.7% ~X,XXX
Sarah Sun Liew
~X% -40.8% ~XXX
Douglas H. Pierce
~X% -40.8% ~XXX
Christina Pascucci
~X% -40.8% ~XXX
Sharleta Bassett
~X% -40.9% ~XXX
Gail Lightfoot
~X% -41.0% ~XXX
Harmesh Kumar
~X% -41.0% ~XXX
Laura Garza
~X% -41.0% ~XXX
Mark Ruzon
~X% -41.0% ~XXX
Denice Gary Pandol
~X% -41.0% ~XXX
James Jim Macauley
~X% -41.0% ~XXX
Perry Pound
~X% -41.0% ~XXX
Raji Rab
~X% -41.0% ~XXX
John Rose
~X% -41.1% ~XXX
David Peterson
~X% -41.1% ~XXX
Forrest Jones
~X% -41.2% ~XXX
Major Singh
~X% -41.2% ~XXX
Martin Veprauskas
~X% -41.2% ~XXX
Stefan Simchowitz
~X% -41.2% ~XXX
Don J. Grundmann
~X% -41.2% ~XXX
~XXX,XXX total votes
Proposition 1 Bonds for Mental Health Treatment Facilities
PASSED ~XX% Yes +14.8%
Bonds for Mental Health Treatment Facilities
Yes
~XX% +14.8% ~XXX,XXX
No
~XX% -14.8% ~XX,XXX
~XXX,XXX total votes
Legislative Races 6
11th State Senate District 10% of contest
Scott Wiener* ~XX% +38.8% View full race results
Scott Wiener*
~XX% +38.8% ~XX,XXX
Yvette Corkrean
~XX% -38.8% ~X,XXX
Cynthia Cravens
~XX% -50.1% ~X,XXX
Jing Chao Xiong
~X% -58.2% ~XXX
~XX,XXX total votes
13th State Senate District 62% of contest
Josh Becker* ~XX% +55.2% View full race results
Josh Becker*
~XX% +55.2% ~XXX,XXX
Alexander Glew
~XX% -55.2% ~XX,XXX
Christina Laskowski
~X% -67.4% ~X,XXX
~XXX,XXX total votes
15th Congressional District 88% of contest
Kevin Mullin* ~XX% +51.8% View full race results
Kevin Mullin*
~XX% +51.8% ~XX,XXX
Anna Cheng Kramer
~XX% -51.8% ~XX,XXX
~XXX,XXX total votes
16th Congressional District 21% of contest
Sam Liccardo ~XX% +1.1% View full race results
Sam Liccardo
~XX% +1.1% ~X,XXX
Joe Simitian
~XX% -1.1% ~X,XXX
Peter Ohtaki
~XX% -4.4% ~X,XXX
Evan Low
~XX% -4.6% ~X,XXX
Peter Dixon
~XX% -5.6% ~X,XXX
Julie Lythcott Haims
~X% -8.6% ~X,XXX
Karl Ryan
~X% -12.4% ~X,XXX
Rishi Kumar
~X% -12.7% ~X,XXX
Ahmed Mostafa
~X% -14.8% ~X,XXX
Greg Lin Tanaka
~X% -16.9% ~XXX
Joby B Bernstein
~X% -16.9% ~XXX
~XX,XXX total votes
19th Assembly District 19% of contest
Catherine Stefani ~XX% +14.6% View full race results
Catherine Stefani
~XX% +14.6% ~XX,XXX
David E. Lee
~XX% -14.6% ~X,XXX
Arjun Gustav Sodhani
~XX% -36.3% ~X,XXX
Nadia Flamenco
~XX% -36.7% ~X,XXX
~XX,XXX total votes
23rd Assembly District 33% of contest
Marc Berman* ~XX% +46.7% View full race results
Marc Berman*
~XX% +46.7% ~XX,XXX
Lydia Kou
~XX% -46.7% ~X,XXX
Gus Mattammal
~XX% -48.5% ~X,XXX
Allan K. Marson
~X% -52.4% ~X,XXX
~XX,XXX total votes
Overlapping Local Races 1
San Mateo County Board of Supervisors District 5
David J. Canepa ~XX% View full race results
David J. Canepa
~XX% ~XX,XXX
~XX,XXX total votes
Overlapping Ballot Measures 1
Measure C - Jefferson Elementary School District
PASSED ~XX% Yes +39.6% View full results
Yes
~XX% +39.6% ~X,XXX
No
~XX% -39.6% ~X,XXX
~XX,XXX total votes
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