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Contra Costa County

1,167,984 Population
732,464 Voters
Countywide District 1 District 2 District 3 District 4 District 5
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Contra Costa County

1,167,984 Population
732,464 Voters
Countywide District 1 District 2 District 3 District 4 District 5

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

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How Contra Costa County Voted

2020 Primary

Year
2025 2024 2022 2021 2020 2019 2018 2016 2014 2012
Type
General Primary Special
How they voted in other elections Contra Costa County's election results
17 races analyzed
|
Statewide & Federal 7
President - Democrat Joseph R. Biden ~XX% +1.6%
Joseph R. Biden
~XX% +1.6% ~XX,XXX
Bernie Sanders
~XX% -1.6% ~XX,XXX
Michael R. Bloomberg
~XX% -16.0% ~XX,XXX
Elizabeth Warren
~XX% -18.0% ~XX,XXX
Pete Buttigieg
~X% -27.1% ~X,XXX
Amy Klobuchar
~X% -28.5% ~X,XXX
Tom Steyer
~X% -29.5% ~X,XXX
Andrew Yang
~X% -30.7% ~X,XXX
Tulsi Gabbard
~X% -30.7% ~X,XXX
Cory Booker
~X% -31.2% ~XXX
Michael Bennet
~X% -31.2% ~XXX
Julian Castro
~X% -31.2% ~XXX
Marianne Williamson
~X% -31.2% ~XXX
Roque Rocky De La Fuente Iii
~X% -31.3% ~XX
John K. Delaney
~X% -31.3% ~XX
Mosie Boyd
~X% -31.3% ~XX
Joe Sestak
~X% -31.3% ~XX
Mark Stewart Greenstein
~X% -31.3% ~XX
Deval Patrick
~X% -31.3% ~XX
Michael A. Ellinger
~X% -31.3% ~XX
~XXX,XXX total votes
President - Republican Donald J. Trump* ~XX% +84.2%
Donald J. Trump*
~XX% +84.2% ~XX,XXX
Bill Weld
~X% -84.2% ~X,XXX
Joe Walsh
~X% -84.8% ~X,XXX
Roque Rocky De La Fuente
~X% -87.6% ~XXX
Robert Ardini
~X% -88.0% ~XXX
Matthew John Matern
~X% -88.0% ~XXX
Zoltan G. Istvan
~X% -88.3% ~XXX
~XX,XXX total votes
President - American Independent Phil Collins ~XX% +14.3%
Phil Collins
~XX% +14.3% ~XXX
Don Blankenship
~XX% -14.3% ~XXX
Roque Rocky De La Fuente
~XX% -16.9% ~XXX
Charles Kraut
~XX% -22.1% ~XXX
J.R. Myers
~XX% -22.7% ~XXX
~X,XXX total votes
President - Green Howie Hawkins ~XX% +11.0%
Howie Hawkins
~XX% +11.0% ~XXX
Dario Hunter
~XX% -11.0% ~XX
Dennis Lambert
~XX% -12.0% ~XX
Sedinam Moyowasifza Curry
~XX% -16.9% ~XX
David Rolde
~X% -27.2% ~XX
~XXX total votes
President - Libertarian Jacob Hornberger ~XX% +4.6%
Jacob Hornberger
~XX% +4.6% ~XXX
Jo Jorgensen
~XX% -4.6% ~XXX
Ken Armstrong
~XX% -6.4% ~XXX
Vermin Supreme
~XX% -7.0% ~XXX
Max Abramson
~X% -10.4% ~XX
Sam Robb
~X% -10.5% ~XX
Adam Kokesh
~X% -10.8% ~XX
Kim Ruff
~X% -11.3% ~XX
Dan Behrman
~X% -13.8% ~XX
Souraya Faas
~X% -15.0% ~XX
Steven A Richey
~X% -15.3% ~XX
Erik Chase Gerhardt
~X% -16.4% ~XX
Keenan Wallace Dunham
~X% -16.4% ~XX
~XXX total votes
President - PAF Gloria La Riva ~XX% +44.8%
Gloria La Riva
~XX% +44.8% ~XXX
Howie Hawkins
~XX% -44.8% ~XX
~XXX total votes
Proposition 13 Bonds for School and College Facilities
PASSED ~XX% Yes +1.0%
Bonds for School and College Facilities
Yes
~XX% +1.0% ~XXX,XXX
No
~XX% -1.0% ~XXX,XXX
~XXX,XXX total votes
Legislative Races 10
11th Assembly District 49% of contest
Jim Frazier* ~XX% View full race results
Jim Frazier*
~XX% ~XX,XXX
~XX,XXX total votes
11th Congressional District
Mark De Saulnier* ~XX% +49.8% View full race results
Mark De Saulnier*
~XX% +49.8% ~XXX,XXX
Nisha Sharma
~XX% -49.8% ~XX,XXX
Michael Ernest Kerr
~X% -63.8% ~XX,XXX
~XXX,XXX total votes
14th Assembly District 70% of contest
Tim Grayson* ~XX% +38.9% View full race results
Tim Grayson*
~XX% +38.9% ~XX,XXX
Janell Elizabeth Proctor
~XX% -38.9% ~XX,XXX
Cassandra Devereaux
~X% -58.2% ~X,XXX
~XX,XXX total votes
15th Congressional District 12% of contest
Eric Swalwell* ~XX% +39.3% View full race results
Eric Swalwell*
~XX% +39.3% ~XX,XXX
Alison Hayden
~XX% -39.3% ~X,XXX
Samantha Campbell
~X% -54.1% ~X,XXX
Peter Yuan Liu
~X% -55.0% ~X,XXX
Tuan Phan
~X% -58.6% ~XXX
Don J. Grundmann
~X% -60.0% ~XXX
Austin E. Intal
~X% -60.5% ~XXX
~XX,XXX total votes
16th Assembly District 62% of contest
Rebecca Bauer Kahan* ~XX% +39.6% View full race results
Rebecca Bauer Kahan*
~XX% +39.6% ~XX,XXX
Joseph A. Rubay
~XX% -39.6% ~XX,XXX
~XX,XXX total votes
3rd State Senate District 10% of contest
Bill Dodd* ~XX% View full race results
Bill Dodd*
~XX% ~XX,XXX
~XX,XXX total votes
5th Congressional District 11% of contest
Mike Thompson* ~XX% +46.4% View full race results
Mike Thompson*
~XX% +46.4% ~XX,XXX
Scott Giblin
~XX% -46.4% ~X,XXX
John Wesley Tyler
~XX% -48.1% ~X,XXX
Jason Kishineff
~X% -59.4% ~X,XXX
~XX,XXX total votes
7th State Senate District 77% of contest
Steve Glazer* ~XX% +22.5% View full race results
Steve Glazer*
~XX% +22.5% ~XXX,XXX
Julie Mobley
~XX% -22.5% ~XX,XXX
Marisol Rubio
~XX% -23.6% ~XX,XXX
~XXX,XXX total votes
9th Congressional District 31% of contest
Jerry Mc Nerney* ~XX% +40.1% View full race results
Jerry Mc Nerney*
~XX% +40.1% ~XX,XXX
William Martinek
~XX% -40.1% ~X,XXX
Antonio C. Amador
~XX% -41.3% ~X,XXX
~XX,XXX total votes
9th State Senate District 21% of contest
Nancy Skinner* ~XX% View full race results
Nancy Skinner*
~XX% ~XX,XXX
~XX,XXX total votes
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