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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

2024 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 8
President - Democrat Joseph R Biden Jr ~XX% +89.7%
Joseph R Biden Jr
~XX% +89.7% ~XXX,XXX
Marianne Williamson
~X% -89.7% ~X,XXX
Dean Phillips
~X% -90.1% ~X,XXX
Gabriel Cornejo
~X% -92.0% ~XXX
Armando Mando Perez Serrato
~X% -92.1% ~XXX
President R Boddie
~X% -92.2% ~XXX
Stephen P Lyons
~X% -92.3% ~XXX
Eban Cambridge
~X% -92.4% ~XXX
~XXX,XXX total votes
President - Republican Donald J. Trump ~XX% +45.3%
Donald J. Trump
~XX% +45.3% ~XX,XXX
Nikki Haley
~XX% -45.3% ~XX,XXX
Ron De Santis
~X% -68.7% ~X,XXX
Chris Christie
~X% -69.3% ~XXX
Vivek Ramaswamy
~X% -69.9% ~XXX
David Stuckenberg
~X% -70.3% ~XXX
Ryan L Binkley
~X% -70.3% ~XXX
Rachel Swift
~X% -70.3% ~XX
Asa Hutchinson
~X% -70.4% ~XX
~XX,XXX total votes
President - American Independent James Bradley ~XX%
James Bradley
~XX% ~X,XXX
~X,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% +2.2%
Claudia De La Cruz
~XX% +2.2% ~XXX
Cornel West
~XX% -2.2% ~XXX
Jasmine Sherman
~XX% -29.5% ~XX
~XXX total votes
U.S. Senator Adam B. Schiff ~XX% +16.8%
Adam B. Schiff
~XX% +16.8% ~XXX,XXX
Steve Garvey
~XX% -16.8% ~XX,XXX
Katie Porter
~XX% -22.7% ~XX,XXX
Barbara Lee
~XX% -25.1% ~XX,XXX
Eric Early
~X% -37.2% ~X,XXX
James Bradley
~X% -38.1% ~X,XXX
Christina Pascucci
~X% -38.4% ~X,XXX
Stefan Simchowitz
~X% -38.7% ~X,XXX
Sharleta Bassett
~X% -38.7% ~X,XXX
Gail Lightfoot
~X% -38.7% ~X,XXX
Sarah Sun Liew
~X% -38.7% ~X,XXX
David Peterson
~X% -38.8% ~XXX
Laura Garza
~X% -38.8% ~XXX
Harmesh Kumar
~X% -38.8% ~XXX
James Jim Macauley
~X% -38.8% ~XXX
Sepi Gilani
~X% -38.9% ~XXX
Jonathan Reiss
~X% -38.9% ~XXX
Major Singh
~X% -38.9% ~XXX
Denice Gary Pandol
~X% -38.9% ~XXX
Perry Pound
~X% -38.9% ~XXX
Douglas H. Pierce
~X% -38.9% ~XXX
Forrest Jones
~X% -39.0% ~XXX
Mark Ruzon
~X% -39.0% ~XXX
John Rose
~X% -39.0% ~XXX
Raji Rab
~X% -39.0% ~XXX
Martin Veprauskas
~X% -39.0% ~XXX
Don J. Grundmann
~X% -39.0% ~XXX
~XXX,XXX total votes
Proposition 1 Bonds for Mental Health Treatment Facilities
PASSED ~XX% Yes +15.0%
Bonds for Mental Health Treatment Facilities
Yes
~XX% +15.0% ~XXX,XXX
No
~XX% -15.0% ~XXX,XXX
~XXX,XXX total votes
Legislative Races 9
10th Congressional District 97% of contest
Mark De Saulnier* ~XX% +46.7% View full race results
Mark De Saulnier*
~XX% +46.7% ~XXX,XXX
Katherine Piccinini
~XX% -46.7% ~XX,XXX
Nolan Lee Chen
~XX% -55.3% ~XX,XXX
Joe Sweeney
~X% -61.6% ~X,XXX
Mohamed Elsherbini
~X% -64.8% ~X,XXX
~XXX,XXX total votes
11th Assembly District 12% of contest
Lori D Wilson* ~XX% +9.3% View full race results
Lori D Wilson*
~XX% +9.3% ~X,XXX
Dave Ennis
~XX% -9.3% ~X,XXX
Wanda Wallis
~XX% -25.0% ~X,XXX
Jeffrey Flack
~X% -36.2% ~XXX
~XX,XXX total votes
14th Assembly District 45% of contest
Buffy Wicks* ~XX% +54.1% View full race results
Buffy Wicks*
~XX% +54.1% ~XX,XXX
Margot Smith
~XX% -54.1% ~X,XXX
Utkarsh Jain
~XX% -56.5% ~X,XXX
~XX,XXX total votes
16th Assembly District 68% of contest
Rebecca Bauer Kahan* ~XX% +33.8% View full race results
Rebecca Bauer Kahan*
~XX% +33.8% ~XX,XXX
Joseph A. Rubay
~XX% -33.8% ~XX,XXX
~XX,XXX total votes
3rd State Senate District 12% of contest
Thom Bogue ~XX% +9.2% View full race results
Thom Bogue
~XX% +9.2% ~X,XXX
Christopher Cabaldon
~XX% -9.2% ~X,XXX
Jackie Elward
~XX% -19.5% ~X,XXX
Rozzana Verder Aliga
~XX% -20.2% ~X,XXX
Jimih Jones
~XX% -23.0% ~X,XXX
~XX,XXX total votes
7th State Senate District 25% of contest
Jesse Arreguin ~XX% +11.8% View full race results
Jesse Arreguin
~XX% +11.8% ~XX,XXX
Jovanka Beckles
~XX% -11.8% ~X,XXX
Dan Kalb
~XX% -14.8% ~X,XXX
Kathryn Lybarger
~XX% -15.2% ~X,XXX
Jeanne Solnordal
~XX% -16.2% ~X,XXX
Sandre R Swanson
~X% -22.6% ~X,XXX
~XX,XXX total votes
8th Congressional District 56% of contest
John Garamendi* ~XX% +62.0% View full race results
John Garamendi*
~XX% +62.0% ~XX,XXX
Rudy Recile
~XX% -62.0% ~XX,XXX
~XX,XXX total votes
9th Congressional District 3% of contest
Josh Harder* ~XX% +13.6% View full race results
Josh Harder*
~XX% +13.6% ~X,XXX
Kevin Lincoln
~XX% -13.6% ~X,XXX
John Mc Bride
~XX% -22.6% ~XXX
Khalid Jeffrey Jafri
~XX% -31.4% ~XXX
~X,XXX total votes
9th State Senate District 83% of contest
Tim Grayson ~XX% +22.6% View full race results
Tim Grayson
~XX% +22.6% ~XX,XXX
Marisol Rubio
~XX% -22.6% ~XX,XXX
~XXX,XXX total votes
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