Contra Costa County
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Political Insights
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Total Registration
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Political Lean
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Registration Advantage
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Lowest Turnout
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Highest Turnout
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Key Metrics
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Total Population
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1,167,984 |
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18+ Population
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904,735 |
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Over 65 Population
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Hispanic/Latino Population
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Median Household Income
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Bachelor’s or Higher
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Public Assistance/SNAP
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Electoral History
| 2024 President | |
| 2022 Governor | |
| 2020 President | |
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| 2016 President | |
| 2014 Governor |
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Ideology
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Elected Officials
Official PageCountywide Officials
Diana Becton
District Attorney
David Livingston
Sheriff
Gus S. Kramer
Assessor
Robert R. Campbell
Auditor-Controller
Dan M. Mierzwa
Tax Collector
Board of Supervisors
Official PageJohn Gioia
Supervisor - District 1
Candace Andersen
Supervisor - District 2
Diane Burgis
Supervisor - District 3
Ken Carlson
Supervisor - District 4
Shanelle Scales-Preston
Supervisor - District 5