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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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Cities

19 total
City of Antioch
1 2 3 4
City of Brentwood
1 2 3 4
City of Clayton
City of Concord
1 2 3 4 5
City of Danville
City of El Cerrito
City of Hercules
City of Lafayette
City of Martinez
1 2 3 4
City of Moraga
City of Oakley
1 2 3 4 5
City of Orinda
City of Pinole
City of Pittsburg
City of Pleasant Hill
1 2 3 4 5
City of Richmond
1 2 3 4 5 6
City of San Pablo
City of San Ramon
1 2 3 4
City of Walnut Creek

School Districts

20 total
Acalanes Union High High School
Antioch Unified Unified
1 2 3 4 5
Brentwood Union Elementary
Byron Union Elementary Elementary
Canyon Elementary Elementary
Contra Costa County Board of Education County Board of Ed
1 2 3 4 5
John Swett Unified Unified
Knightsen Elementary Elementary
Lafayette Elementary Elementary
Liberty Union High High School
1 2 3 4 5
Livermore Valley Joint Unified Unified
Martinez Unified Unified
1 2 3 4 5
Moraga Elementary Elementary
Mt. Diablo Unified Unified
1 2 3 4 5
Oakley Union Elementary Elementary
1 2 3 4 5
Orinda Union Elementary
Pittsburg Unified Unified
San Ramon Valley Unified Unified
1 2 3 4 5
Walnut Creek Elementary Elementary
West Contra Costa Unified Unified
1 2 3 4 5

Community College Districts

2 total
Chabot-Las Positas Community College
1 2 3 4 5 6 7
Contra Costa Community College
1 2 3 4 5

Legislative Districts

14 total
11th Assembly District
14th Assembly District
15th Assembly District
16th Assembly District
3rd State Senate District
7th State Senate District
9th State Senate District
10th Congressional District (2022)
8th Congressional District (2022)
9th Congressional District (2022)
8th Congressional District (2026)
9th Congressional District (2026)
10th Congressional District (2026)
2nd Board of Equalization District
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