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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 General

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
23 races analyzed
|
Statewide & Federal 13
President Joseph R. Biden ~XX% +45.3%
Joseph R. Biden
~XX% +45.3% ~XXX,XXX
Donald J. Trump*
~XX% -45.3% ~XXX,XXX
Jo Jorgensen
~X% -70.5% ~X,XXX
Howie Hawkins
~X% -71.1% ~X,XXX
Roque De La Fuente Guerra
~X% -71.3% ~X,XXX
Gloria La Riva
~X% -71.4% ~X,XXX
~XXX,XXX total votes
Proposition 14 Bonds to Continue Stem Cell Research
PASSED ~XX% Yes +12.8%
Bonds to Continue Stem Cell Research
Yes
~XX% +12.8% ~XXX,XXX
No
~XX% -12.8% ~XXX,XXX
~XXX,XXX total votes
Proposition 15 Property Tax to Fund Schools, Government Services
PASSED ~XX% Yes +9.6%
Property Tax to Fund Schools, Government Services
Yes
~XX% +9.6% ~XXX,XXX
No
~XX% -9.6% ~XXX,XXX
~XXX,XXX total votes
Proposition 16 Affirmative Action in Government Decisions
FAILED ~XX% Yes -5.0%
Affirmative Action in Government Decisions
Yes
~XX% -5.0% ~XXX,XXX
No
~XX% +5.0% ~XXX,XXX
~XXX,XXX total votes
Proposition 17 Restores Right to Vote After Prison Term
PASSED ~XX% Yes +29.6%
Restores Right to Vote After Prison Term
Yes
~XX% +29.6% ~XXX,XXX
No
~XX% -29.6% ~XXX,XXX
~XXX,XXX total votes
Proposition 18 17-year-old Primary Voting Rights
FAILED ~XX% Yes -2.8%
17-year-old Primary Voting Rights
Yes
~XX% -2.8% ~XXX,XXX
No
~XX% +2.8% ~XXX,XXX
~XXX,XXX total votes
Proposition 19 Changes Certain Property Tax Rules
PASSED ~XX% Yes +15.2%
Changes Certain Property Tax Rules
Yes
~XX% +15.2% ~XXX,XXX
No
~XX% -15.2% ~XXX,XXX
~XXX,XXX total votes
Proposition 20 Parole Restrictions for Certain Offenses
FAILED ~XX% Yes -29.6%
Parole Restrictions for Certain Offenses
Yes
~XX% -29.6% ~XXX,XXX
No
~XX% +29.6% ~XXX,XXX
~XXX,XXX total votes
Proposition 21 Expands Governments' Authority to Rent Control
FAILED ~XX% Yes -18.2%
Expands Governments' Authority to Rent Control
Yes
~XX% -18.2% ~XXX,XXX
No
~XX% +18.2% ~XXX,XXX
~XXX,XXX total votes
Proposition 22 App-Based Drivers and Employee Benefits
PASSED ~XX% Yes +7.6%
App-Based Drivers and Employee Benefits
Yes
~XX% +7.6% ~XXX,XXX
No
~XX% -7.6% ~XXX,XXX
~XXX,XXX total votes
Proposition 23 Dialysis Clinic Requirements
FAILED ~XX% Yes -24.6%
Dialysis Clinic Requirements
Yes
~XX% -24.6% ~XXX,XXX
No
~XX% +24.6% ~XXX,XXX
~XXX,XXX total votes
Proposition 24 Amends Consumer Privacy Laws
PASSED ~XX% Yes +20.0%
Amends Consumer Privacy Laws
Yes
~XX% +20.0% ~XXX,XXX
No
~XX% -20.0% ~XXX,XXX
~XXX,XXX total votes
Proposition 25 Eliminates Money Bail System
PASSED ~XX% Yes +1.6%
Eliminates Money Bail System
Yes
~XX% +1.6% ~XXX,XXX
No
~XX% -1.6% ~XXX,XXX
~XXX,XXX total votes
Legislative Races 10
Assembly Total (3 races) Democrat Vote ~XX% +36.2%
Democrat Vote
~XX% +36.2% ~XXX,XXX
Republican Vote
~XX% -36.2% ~XXX,XXX
~XXX,XXX total votes
Congressional Total (4 races) Democrat Vote ~XX% +41.2%
Democrat Vote
~XX% +41.2% ~XXX,XXX
Republican Vote
~XX% -41.2% ~XXX,XXX
~XXX,XXX total votes
Senate Total (2 races) Democrat Vote ~XX% +33.4%
Democrat Vote
~XX% +33.4% ~XXX,XXX
Republican Vote
~XX% -33.4% ~XXX,XXX
~XXX,XXX total votes 9th State Senate District not included (same-party race)
11th Assembly District 79% of contest
Jim Frazier* ~XX% +33.6% View full race results
Jim Frazier*
~XX% +33.6% ~XX,XXX
Debra Schwab
~XX% -33.6% ~XX,XXX
~XXX,XXX total votes
11th Congressional District
Mark De Saulnier* ~XX% +46.0% View full race results
Mark De Saulnier*
~XX% +46.0% ~XXX,XXX
Nisha Sharma
~XX% -46.0% ~XXX,XXX
~XXX,XXX total votes
14th Assembly District
Tim Grayson* ~XX% +37.0% View full race results
Tim Grayson*
~XX% +37.0% ~XXX,XXX
Janell Elizabeth Proctor
~XX% -37.0% ~XX,XXX
~XXX,XXX total votes
15th Congressional District 13% of contest
Eric Swalwell* ~XX% +35.0% View full race results
Eric Swalwell*
~XX% +35.0% ~XX,XXX
Alison Hayden
~XX% -35.0% ~XX,XXX
~XX,XXX total votes
16th Assembly District 64% of contest
Rebecca Bauer Kahan* ~XX% +37.4% View full race results
Rebecca Bauer Kahan*
~XX% +37.4% ~XXX,XXX
Joseph A. Rubay
~XX% -37.4% ~XX,XXX
~XXX,XXX total votes
3rd State Senate District 12% of contest
Bill Dodd* ~XX% +39.2% View full race results
Bill Dodd*
~XX% +39.2% ~XX,XXX
Carlos Santamaria
~XX% -39.2% ~XX,XXX
~XX,XXX total votes
5th Congressional District 13% of contest
Mike Thompson* ~XX% +54.4% View full race results
Mike Thompson*
~XX% +54.4% ~XX,XXX
Scott Giblin
~XX% -54.4% ~XX,XXX
~XX,XXX total votes
7th State Senate District 77% of contest
Steve Glazer* ~XX% +32.8% View full race results
Steve Glazer*
~XX% +32.8% ~XXX,XXX
Julie Mobley
~XX% -32.8% ~XXX,XXX
~XXX,XXX total votes
9th Congressional District 52% of contest
Jerry Mc Nerney* ~XX% +19.0% View full race results
Jerry Mc Nerney*
~XX% +19.0% ~XX,XXX
Antonio C. Amador
~XX% -19.0% ~XX,XXX
~XX,XXX total votes
9th State Senate District
Nancy Skinner* ~XX% +69.4% View full race results
Nancy Skinner*
~XX% +69.4% ~XX,XXX
Jamie Dluzak
~XX% -69.4% ~XX,XXX
~XXX,XXX total votes
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