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County of Contra Costa - District 4

Supervisor: Ken Carlson
242,867 Population
155,970 Voters

County of Contra Costa - District 4

Supervisor: Ken Carlson
242,867 Population
155,970 Voters

Unlock full voter and turnout data for 4th Supervisorial District Voter counts, turnout history, and demographics—ready for your next briefing in minutes, not hours.

Population Overlap

County of Contra Costa - District 4
Total Population 242,867
43 overlapping jurisdictions
11 jurisdiction types
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Counties

1 jurisdiction
100.0% of this district
20.8% of the county
15th Assembly District Anamarie Ávila Farías (D)
69.4% of this district
32.9% of the subdistrict
16th Assembly District Rebecca Bauer-Kahan (D)
30.6% of this district
14.4% of the subdistrict
9th State Senate District Tim Grayson (D)
100.0% of this district
24.5% of the subdistrict
100.0% of this district
32.0% of the subdistrict
100.0% of this district
2.4% of the subdistrict
4.6% of this district
100.0% of the subdistrict
49.4% of this district
95.5% of the subdistrict
14.3% of this district
100.0% of the subdistrict
24.5% of this district
84.7% of the subdistrict
15.1% of this district
30.8% of the subdistrict
84.3% of this district
76.7% of the subdistrict
14.9% of this district
67.4% of the subdistrict
100.0% of this district
20.8% of the subdistrict
100.0% of this district
20.8% of the subdistrict
100.0% of this district
32.0% of the subdistrict
0.5% of this district
100.0% of the subdistrict
2.8% of this district
100.0% of the subdistrict
0.3% of this district
100.0% of the subdistrict
0.6% of this district
40.7% of the subdistrict
1.5% of this district
100.0% of the subdistrict
0.4% of this district
100.0% of the subdistrict

Cities

4 jurisdictions
4.6% of this district
100.0% of the city
49.4% of this district
95.5% of the city
City of Concord - District 1 Laura Hoffmeister
10.1% of this district
100.0% of the subdistrict
8.5% of this district
78.4% of the subdistrict
10.8% of this district
100.0% of the subdistrict
9.9% of this district
100.0% of the subdistrict
10.1% of this district
100.0% of the subdistrict
14.3% of this district
100.0% of the city
2.7% of this district
99.7% of the subdistrict
2.8% of this district
99.8% of the subdistrict
2.9% of this district
100.0% of the subdistrict
2.9% of this district
100.0% of the subdistrict
2.9% of this district
100.0% of the subdistrict
24.5% of this district
84.7% of the city

State Assembly

2 jurisdictions
15th Assembly District Anamarie Ávila Farías (D)
69.4% of this district
32.9% of the AD
16th Assembly District Rebecca Bauer-Kahan (D)
30.6% of this district
14.4% of the AD

State Senate

1 jurisdiction
9th State Senate District Tim Grayson (D)
100.0% of this district
24.5% of the SD

Congressional (2022)

1 jurisdiction
100.0% of this district
32.0% of the CD

Congressional (2026)

1 jurisdiction
100.0% of this district
32.0% of the CD

Board of Equalization

1 jurisdiction
100.0% of this district
2.4% of the district

School Districts

3 jurisdictions
15.1% of this district
30.8% of the district
84.3% of this district
76.7% of the district
5.0% of this district
22.4% of the trustee area
17.6% of this district
80.0% of the trustee area
18.0% of this district
82.2% of the trustee area
21.9% of this district
99.9% of the trustee area
21.9% of this district
100.0% of the trustee area
14.9% of this district
67.4% of the district

Community College

1 jurisdiction
100.0% of this district
20.8% of the CCD
62.2% of this district
64.7% of the trustee area
37.6% of this district
39.1% of the trustee area

County Board of Ed

1 jurisdiction
100.0% of this district
20.8% of the district
27.3% of this district
29.0% of the trustee area
57.8% of this district
61.4% of the trustee area
14.9% of this district
16.0% of the trustee area

Unincorporated Communities

6 jurisdictions
0.5% of this district
100.0% of the community
2.8% of this district
100.0% of the community
0.3% of this district
100.0% of the community
0.6% of this district
40.7% of the community
1.5% of this district
100.0% of the community
0.4% of this district
100.0% of the community
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