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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

2020 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
14 races analyzed
|
Statewide & Federal 7
President - Democrat Bernie Sanders ~XX% +1.4%
Bernie Sanders
~XX% +1.4% ~XX,XXX
Joseph R. Biden
~XX% -1.4% ~XX,XXX
Michael R. Bloomberg
~XX% -12.0% ~XX,XXX
Elizabeth Warren
~XX% -13.3% ~XX,XXX
Pete Buttigieg
~X% -23.3% ~X,XXX
Amy Klobuchar
~X% -25.7% ~X,XXX
Tom Steyer
~X% -27.0% ~X,XXX
Andrew Yang
~X% -27.8% ~X,XXX
Tulsi Gabbard
~X% -28.2% ~XXX
Julian Castro
~X% -28.6% ~XXX
Marianne Williamson
~X% -28.6% ~XXX
Michael Bennet
~X% -28.6% ~XX
Cory Booker
~X% -28.6% ~XX
Michael A. Ellinger
~X% -28.6% ~XX
Roque Rocky De La Fuente Iii
~X% -28.7% ~XX
John K. Delaney
~X% -28.7% ~XX
Joe Sestak
~X% -28.7% ~XX
Mark Stewart Greenstein
~X% -28.7% ~XX
Mosie Boyd
~X% -28.7% ~XX
Deval Patrick
~X% -28.7% ~XX
~XXX,XXX total votes
President - Republican Donald J. Trump* ~XX% +79.8%
Donald J. Trump*
~XX% +79.8% ~XX,XXX
Bill Weld
~X% -79.8% ~X,XXX
Joe Walsh
~X% -82.1% ~X,XXX
Roque Rocky De La Fuente
~X% -84.7% ~XXX
Robert Ardini
~X% -84.9% ~XXX
Matthew John Matern
~X% -85.1% ~XXX
Zoltan G. Istvan
~X% -85.4% ~XXX
~XX,XXX total votes
President - American Independent Phil Collins ~XX% +9.8%
Phil Collins
~XX% +9.8% ~XXX
Roque Rocky De La Fuente
~XX% -9.8% ~XXX
Don Blankenship
~XX% -19.0% ~XXX
Charles Kraut
~XX% -20.4% ~XXX
J.R. Myers
~XX% -21.4% ~XXX
~XXX total votes
President - Green Howie Hawkins ~XX% +18.5%
Howie Hawkins
~XX% +18.5% ~XXX
Dario Hunter
~XX% -18.5% ~XX
Dennis Lambert
~XX% -18.8% ~XX
Sedinam Moyowasifza Curry
~XX% -26.5% ~XX
David Rolde
~X% -36.2% ~XX
~XXX total votes
President - Libertarian Jacob Hornberger ~XX% +0.9%
Jacob Hornberger
~XX% +0.9% ~XXX
Jo Jorgensen
~XX% -0.9% ~XXX
Vermin Supreme
~XX% -8.3% ~XX
Adam Kokesh
~X% -9.4% ~XX
Ken Armstrong
~X% -10.8% ~XX
Kim Ruff
~X% -11.5% ~XX
Dan Behrman
~X% -12.0% ~XX
Max Abramson
~X% -13.9% ~XX
Sam Robb
~X% -14.4% ~XX
Steven A Richey
~X% -16.7% ~XX
Souraya Faas
~X% -17.2% ~XX
Keenan Wallace Dunham
~X% -17.7% ~XX
Erik Chase Gerhardt
~X% -18.1% ~XX
~XXX total votes
President - PAF Gloria La Riva ~XX% +22.0%
Gloria La Riva
~XX% +22.0% ~XX
Howie Hawkins
~XX% -22.0% ~XX
~XXX total votes
Proposition 13 Bonds for School and College Facilities
PASSED ~XX% Yes +11.8%
Bonds for School and College Facilities
Yes
~XX% +11.8% ~XXX,XXX
No
~XX% -11.8% ~XX,XXX
~XXX,XXX total votes
Legislative Races 7
11th State Senate District 8% of contest
Scott Wiener* ~XX% +23.2% View full race results
Scott Wiener*
~XX% +23.2% ~XX,XXX
Jackie Fielder
~XX% -23.2% ~X,XXX
Erin Smith
~XX% -37.0% ~X,XXX
~XX,XXX total votes
13th State Senate District 65% of contest
Josh Becker ~XX% +3.2% View full race results
Josh Becker
~XX% +3.2% ~XX,XXX
Shelly Masur
~XX% -3.2% ~XX,XXX
Alexander Glew
~XX% -4.3% ~XX,XXX
Annie Oliva
~XX% -8.8% ~XX,XXX
Mike Brownrigg
~XX% -9.3% ~XX,XXX
Sally J. Lieber
~XX% -9.5% ~XX,XXX
John H. Webster
~X% -20.2% ~X,XXX
~XXX,XXX total votes
14th Congressional District 85% of contest
Jackie Speier* ~XX% +60.9% View full race results
Jackie Speier*
~XX% +60.9% ~XXX,XXX
Ran S. Petel
~XX% -60.9% ~XX,XXX
Cristos Goodrow
~X% -73.4% ~X,XXX
Eric Taylor
~X% -74.2% ~X,XXX
~XXX,XXX total votes
18th Congressional District 18% of contest
Anna G. Eshoo* ~XX% +59.2% View full race results
Anna G. Eshoo*
~XX% +59.2% ~XX,XXX
Rishi Kumar
~XX% -59.2% ~X,XXX
Richard B. Fox
~XX% -59.9% ~X,XXX
Phil Reynolds
~X% -62.8% ~X,XXX
Bob Goodwyn
~X% -68.6% ~XXX
~XX,XXX total votes
19th Assembly District 19% of contest
Phil Ting* ~XX% +62.8% View full race results
Phil Ting*
~XX% +62.8% ~XX,XXX
John P. Mc Donnell
~XX% -62.8% ~X,XXX
~XX,XXX total votes
22nd Assembly District
Kevin Mullin* ~XX% +63.1% View full race results
Kevin Mullin*
~XX% +63.1% ~XXX,XXX
Mark Gilham
~XX% -63.1% ~XX,XXX
Bridget Mahoney
~XX% -64.0% ~XX,XXX
~XXX,XXX total votes
24th Assembly District 28% of contest
Marc Berman* ~XX% +50.2% View full race results
Marc Berman*
~XX% +50.2% ~XX,XXX
Peter Ohtaki
~XX% -50.2% ~X,XXX
Kennita Watson
~X% -67.6% ~X,XXX
~XX,XXX total votes
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