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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

2016 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
30 races analyzed
|
Statewide & Federal 19
President Hillary Clinton ~XX% +44.1%
Hillary Clinton
~XX% +44.1% ~XXX,XXX
Donald J. Trump
~XX% -44.1% ~XXX,XXX
Gary Johnson
~X% -65.7% ~XX,XXX
Jill Stein
~X% -67.3% ~X,XXX
Gloria Estela La Riva
~X% -68.9% ~X,XXX
~XXX,XXX total votes
U.S. Senator Kamala D. Harris ~XX% +38.8%
Kamala D. Harris
~XX% +38.8% ~XXX,XXX
Loretta L. Sanchez
~XX% -38.8% ~XXX,XXX
~XXX,XXX total votes
Proposition 51 K-12 and Community College Facilities
PASSED ~XX% Yes +11.8%
K-12 and Community College Facilities
Yes
~XX% +11.8% ~XXX,XXX
No
~XX% -11.8% ~XXX,XXX
~XXX,XXX total votes
Proposition 52 Medi-Cal Hospital Fee Program
PASSED ~XX% Yes +40.8%
Medi-Cal Hospital Fee Program
Yes
~XX% +40.8% ~XXX,XXX
No
~XX% -40.8% ~XXX,XXX
~XXX,XXX total votes
Proposition 53 Voter Approval of Revenue Bonds
FAILED ~XX% Yes -8.6%
Voter Approval of Revenue Bonds
Yes
~XX% -8.6% ~XXX,XXX
No
~XX% +8.6% ~XXX,XXX
~XXX,XXX total votes
Proposition 54 Legislative Procedure Requirements
PASSED ~XX% Yes +25.8%
Legislative Procedure Requirements
Yes
~XX% +25.8% ~XXX,XXX
No
~XX% -25.8% ~XXX,XXX
~XXX,XXX total votes
Proposition 55 Tax Extension for Education and Healthcare
PASSED ~XX% Yes +28.8%
Tax Extension for Education and Healthcare
Yes
~XX% +28.8% ~XXX,XXX
No
~XX% -28.8% ~XXX,XXX
~XXX,XXX total votes
Proposition 56 Cigarette Tax
PASSED ~XX% Yes +37.8%
Cigarette Tax
Yes
~XX% +37.8% ~XXX,XXX
No
~XX% -37.8% ~XXX,XXX
~XXX,XXX total votes
Proposition 57 Criminal Sentences & Juvenile Crime Proceedings
PASSED ~XX% Yes +38.6%
Criminal Sentences & Juvenile Crime Proceedings
Yes
~XX% +38.6% ~XXX,XXX
No
~XX% -38.6% ~XXX,XXX
~XXX,XXX total votes
Proposition 58 English Proficiency. Multilingual Education.
PASSED ~XX% Yes +52.2%
English Proficiency. Multilingual Education.
Yes
~XX% +52.2% ~XXX,XXX
No
~XX% -52.2% ~XXX,XXX
~XXX,XXX total votes
Proposition 59 Corporate Political Spending Advisory Question
PASSED ~XX% Yes +15.6%
Corporate Political Spending Advisory Question
Yes
~XX% +15.6% ~XXX,XXX
No
~XX% -15.6% ~XXX,XXX
~XXX,XXX total votes
Proposition 60 Adult Film Condom Requirements
FAILED ~XX% Yes -13.2%
Adult Film Condom Requirements
Yes
~XX% -13.2% ~XXX,XXX
No
~XX% +13.2% ~XXX,XXX
~XXX,XXX total votes
Proposition 61 State Prescription Drug Purchase Standards
PASSED ~XX% Yes +2.6%
State Prescription Drug Purchase Standards
Yes
~XX% +2.6% ~XXX,XXX
No
~XX% -2.6% ~XXX,XXX
~XXX,XXX total votes
Proposition 62 Repeal of Death Penalty
PASSED ~XX% Yes +1.0%
Repeal of Death Penalty
Yes
~XX% +1.0% ~XXX,XXX
No
~XX% -1.0% ~XXX,XXX
~XXX,XXX total votes
Proposition 63 Firearms and Ammunition Sales
PASSED ~XX% Yes +39.0%
Firearms and Ammunition Sales
Yes
~XX% +39.0% ~XXX,XXX
No
~XX% -39.0% ~XXX,XXX
~XXX,XXX total votes
Proposition 64 Marijuana Legalization
PASSED ~XX% Yes +21.4%
Marijuana Legalization
Yes
~XX% +21.4% ~XXX,XXX
No
~XX% -21.4% ~XXX,XXX
~XXX,XXX total votes
Proposition 65 Carryout Bag Charges
FAILED ~XX% Yes -4.6%
Carryout Bag Charges
Yes
~XX% -4.6% ~XXX,XXX
No
~XX% +4.6% ~XXX,XXX
~XXX,XXX total votes
Proposition 66 Death Penalty Procedure Time Limits
FAILED ~XX% Yes -3.0%
Death Penalty Procedure Time Limits
Yes
~XX% -3.0% ~XXX,XXX
No
~XX% +3.0% ~XXX,XXX
~XXX,XXX total votes
Proposition 67 Ban on Single-use Plastic Bags
PASSED ~XX% Yes +16.4%
Ban on Single-use Plastic Bags
Yes
~XX% +16.4% ~XXX,XXX
No
~XX% -16.4% ~XXX,XXX
~XXX,XXX total votes
Legislative Races 11
Assembly Total (2 races) Democrat Vote ~XX% +4.6%
Democrat Vote
~XX% +4.6% ~XXX,XXX
Republican Vote
~XX% -4.6% ~XXX,XXX
~XXX,XXX total votes 14th Assembly District not included (same-party race)
Congressional Total (4 races) Democrat Vote ~XX% +44.4%
Democrat Vote
~XX% +44.4% ~XXX,XXX
Republican Vote
~XX% -44.4% ~XXX,XXX
~XXX,XXX total votes 9th Congressional District not included (same-party race)
Senate Total (1 race) Democrat Vote ~XX% +35.0%
Democrat Vote
~XX% +35.0% ~XXX,XXX
Republican Vote
~XX% -35.0% ~XXX,XXX
~XXX,XXX total votes 3rd State Senate District and 9th State Senate District not included (same-party race)
11th Assembly District 49% of contest
Jim Frazier* ~XX% +31.4% View full race results
Jim Frazier*
~XX% +31.4% ~XX,XXX
Dave Miller
~XX% -31.4% ~XX,XXX
~XX,XXX total votes
11th Congressional District
Mark De Saulnier* ~XX% +44.2% View full race results
Mark De Saulnier*
~XX% +44.2% ~XXX,XXX
Roger Allen Petersen
~XX% -44.2% ~XX,XXX
~XXX,XXX total votes
13th Congressional District 0% of contest
Barbara Lee* ~XX% +86.0% View full race results
Barbara Lee*
~XX% +86.0% ~XXX
Sue Caro
~X% -86.0% ~XX
~XXX total votes
14th Assembly District 68% of contest
Tim Grayson ~XX% View full race results
Tim Grayson
~XX% ~XX,XXX
~XX,XXX total votes
15th Congressional District 12% of contest
Eric Swalwell* ~XX% +35.8% View full race results
Eric Swalwell*
~XX% +35.8% ~XX,XXX
Danny R. Turner
~XX% -35.8% ~XX,XXX
~XX,XXX total votes
16th Assembly District 60% of contest
Catharine Baker* ~XX% +11.6% View full race results
Catharine Baker*
~XX% +11.6% ~XX,XXX
Cheryl Cook Kallio
~XX% -11.6% ~XX,XXX
~XXX,XXX total votes
3rd State Senate District 10% of contest
Bill Dodd ~XX% +28.8% View full race results
Bill Dodd
~XX% +28.8% ~XX,XXX
Mariko Yamada
~XX% -28.8% ~XX,XXX
~XX,XXX total votes
5th Congressional District 13% of contest
Mike Thompson* ~XX% +53.6% View full race results
Mike Thompson*
~XX% +53.6% ~XX,XXX
Carlos Santamaria
~XX% -53.6% ~X,XXX
~XX,XXX total votes
7th State Senate District 77% of contest
Steve Glazer* ~XX% +35.0% View full race results
Steve Glazer*
~XX% +35.0% ~XXX,XXX
Joseph Alexander Rubay
~XX% -35.0% ~XXX,XXX
~XXX,XXX total votes
9th Congressional District 22% of contest
Jerry Mc Nerney* ~XX% View full race results
Jerry Mc Nerney*
~XX% ~XX,XXX
~XX,XXX total votes
9th State Senate District 25% of contest
Nancy Skinner ~XX% View full race results
Nancy Skinner
~XX% ~XX,XXX
~XX,XXX total votes
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