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233,282 Population
144,259 Voters
233,282 Population
144,259 Voters

Unlock full voter and turnout data for Contra Costa - Area 3 Voter counts, turnout history, and demographics—ready for your next briefing in minutes, not hours.

Population Overlap

Contra Costa Community College - District 3
Total Population 233,282
64 overlapping jurisdictions
12 jurisdiction types
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Counties

1 jurisdiction
100.0% of this jurisdiction
20.0% of the county
6.4% of this jurisdiction
6.7% of the subdistrict
64.7% of this jurisdiction
62.2% of the subdistrict
County of Contra Costa - District 5 Shanelle Scales-Preston
29.0% of this jurisdiction
30.4% of the subdistrict
15th Assembly District Anamarie Ávila Farías (D)
98.6% of this jurisdiction
44.9% of the subdistrict
9th State Senate District Tim Grayson (D)
100.0% of this jurisdiction
23.5% of the subdistrict
88.1% of this jurisdiction
27.1% of the subdistrict
11.9% of this jurisdiction
3.6% of the subdistrict
100.0% of this jurisdiction
2.3% of the subdistrict
City of Antioch Ron Bernal
6.5% of this jurisdiction
13.2% of the subdistrict
2.8% of this jurisdiction
58.3% of the subdistrict
51.9% of this jurisdiction
96.4% of the subdistrict
City of Martinez Brianne Zorn
13.9% of this jurisdiction
86.6% of the subdistrict
5.9% of this jurisdiction
18.0% of the subdistrict
10.6% of this jurisdiction
71.1% of the subdistrict
1.1% of this jurisdiction
3.5% of the subdistrict
6.5% of this jurisdiction
12.7% of the subdistrict
11.4% of this jurisdiction
85.6% of the subdistrict
77.4% of this jurisdiction
67.7% of the subdistrict
4.4% of this jurisdiction
16.0% of the subdistrict
100.0% of this jurisdiction
20.0% of the subdistrict
100.0% of this jurisdiction
20.0% of the subdistrict
12.5% of this jurisdiction
3.8% of the subdistrict
87.5% of this jurisdiction
26.9% of the subdistrict
1.1% of this jurisdiction
11.1% of the subdistrict
0.3% of this jurisdiction
100.0% of the subdistrict
0.2% of this jurisdiction
5.1% of the subdistrict
1.1% of this jurisdiction
100.0% of the subdistrict
1.8% of this jurisdiction
100.0% of the subdistrict
1.9% of this jurisdiction
100.0% of the subdistrict

Cities

7 jurisdictions
City of Antioch Ron Bernal
6.5% of this jurisdiction
13.2% of the city
2.0% of this jurisdiction
15.8% of the subdistrict
4.6% of this jurisdiction
38.3% of the subdistrict
2.8% of this jurisdiction
58.3% of the city
51.9% of this jurisdiction
96.4% of the city
City of Concord - District 1 Laura Hoffmeister
10.5% of this jurisdiction
100.0% of the subdistrict
11.3% of this jurisdiction
100.0% of the subdistrict
11.2% of this jurisdiction
100.0% of the subdistrict
8.4% of this jurisdiction
81.5% of the subdistrict
10.5% of this jurisdiction
100.0% of the subdistrict
City of Martinez Brianne Zorn
13.9% of this jurisdiction
86.6% of the city
4.0% of this jurisdiction
100.0% of the subdistrict
4.0% of this jurisdiction
100.0% of the subdistrict
City of Martinez - District 3 Satinder S. Malhi
4.1% of this jurisdiction
100.0% of the subdistrict
1.8% of this jurisdiction
45.8% of the subdistrict
5.9% of this jurisdiction
18.0% of the city
10.6% of this jurisdiction
71.1% of the city
2.8% of this jurisdiction
100.0% of the subdistrict
1.9% of this jurisdiction
63.7% of the subdistrict
2.7% of this jurisdiction
90.0% of the subdistrict
3.1% of this jurisdiction
100.0% of the subdistrict
0.1% of this jurisdiction
2.2% of the subdistrict
1.1% of this jurisdiction
3.5% of the city

State Assembly

1 jurisdiction
15th Assembly District Anamarie Ávila Farías (D)
98.6% of this jurisdiction
44.9% of the AD

State Senate

1 jurisdiction
9th State Senate District Tim Grayson (D)
100.0% of this jurisdiction
23.5% of the SD

Congressional (2022)

2 jurisdictions
88.1% of this jurisdiction
27.1% of the CD
11.9% of this jurisdiction
3.6% of the CD

Congressional (2026)

2 jurisdictions
87.5% of this jurisdiction
26.9% of the CD
12.5% of this jurisdiction
3.8% of the CD

Board of Equalization

1 jurisdiction
100.0% of this jurisdiction
2.3% of the district

School Districts

4 jurisdictions
6.5% of this jurisdiction
12.7% of the district
3.9% of this jurisdiction
38.7% of the trustee area
Antioch Unified - District 4 Olga Cobos-Smith
1.3% of this jurisdiction
13.3% of the trustee area
Antioch Unified - District 5 Mary Helen Rocha
1.3% of this jurisdiction
12.8% of the trustee area
11.4% of this jurisdiction
85.6% of the district
2.3% of this jurisdiction
86.0% of the trustee area
Martinez Unified - District 2 Anne Horack Martin
2.7% of this jurisdiction
100.0% of the trustee area
2.8% of this jurisdiction
100.0% of the trustee area
Martinez Unified - District 4 Courtney Masella-O'Brien
2.7% of this jurisdiction
100.0% of the trustee area
1.1% of this jurisdiction
42.3% of the trustee area
77.4% of this jurisdiction
67.7% of the district
10.3% of this jurisdiction
44.7% of the trustee area
12.1% of this jurisdiction
52.9% of the trustee area
21.7% of this jurisdiction
95.3% of the trustee area
10.5% of this jurisdiction
46.0% of the trustee area
22.8% of this jurisdiction
100.0% of the trustee area
4.4% of this jurisdiction
16.0% of the district

Community College

1 jurisdiction
100.0% of this jurisdiction
20.0% of the CCD

Supervisor Districts

3 jurisdictions
6.4% of this jurisdiction
6.7% of the district
64.7% of this jurisdiction
62.2% of the district
County of Contra Costa - District 5 Shanelle Scales-Preston
29.0% of this jurisdiction
30.4% of the district

County Board of Ed

1 jurisdiction
100.0% of this jurisdiction
20.0% of the district
25.4% of this jurisdiction
26.0% of the trustee area
31.1% of this jurisdiction
31.7% of the trustee area
6.8% of this jurisdiction
6.4% of the trustee area
36.7% of this jurisdiction
37.8% of the trustee area

Unincorporated Communities

6 jurisdictions
1.1% of this jurisdiction
11.1% of the community
0.3% of this jurisdiction
100.0% of the community
0.2% of this jurisdiction
5.1% of the community
1.1% of this jurisdiction
100.0% of the community
1.8% of this jurisdiction
100.0% of the community
1.9% of this jurisdiction
100.0% of the community
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