Menu
Alameda and Contra Costa Counties

10th Congressional District (2026)

760,066 Population
501,456 Voters
These maps go into effect starting with the 2026 election cycle, following the passage of Proposition 50. View 2022 10th Congressional District.
Alameda and Contra Costa Counties

10th Congressional District (2026)

760,066 Population
501,456 Voters
These maps go into effect starting with the 2026 election cycle, following the passage of Proposition 50. View 2022 10th Congressional District.

Unlock full voter and turnout data for 10th Congressional District Voter counts, turnout history, and demographics—ready for your next briefing in minutes, not hours.

Population Overlap

10th Congressional District (2026)
Total Population 760,066
155 overlapping jurisdictions
12 jurisdiction types
|

Counties

2 jurisdictions
10.5% of this CD
4.7% of the county
10.1% of this CD
23.1% of the subdistrict
16th Assembly District Rebecca Bauer-Kahan (D)
41.9% of this CD
61.7% of the subdistrict
20th Assembly District Liz Ortega (D)
10.4% of this CD
15.3% of the subdistrict
9th State Senate District Tim Grayson (D)
85.7% of this CD
65.6% of the subdistrict
82.9% of this CD
82.9% of the subdistrict
10.5% of this CD
10.5% of the subdistrict
100.0% of this CD
7.6% of the subdistrict
City of San Leandro Juan González III
0.4% of this CD
2.9% of the subdistrict
6.1% of this CD
87.7% of the subdistrict
San Leandro Unified Peter Oshinski
0.4% of this CD
4.5% of the subdistrict
3.9% of this CD
35.7% of the subdistrict
10.5% of this CD
11.2% of the subdistrict
10.5% of this CD
4.7% of the subdistrict
3.1% of this CD
100.0% of the subdistrict
7.0% of this CD
79.4% of the subdistrict
89.5% of this CD
58.3% of the county
32.2% of this CD
100.0% of the subdistrict
14.4% of this CD
49.2% of the subdistrict
32.0% of this CD
100.0% of the subdistrict
County of Contra Costa - District 5 Shanelle Scales-Preston
11.0% of this CD
37.5% of the subdistrict
11th Assembly District Lori D. Wilson (D)
5.8% of this CD
8.5% of the subdistrict
15th Assembly District Anamarie Ávila Farías (D)
41.9% of this CD
62.2% of the subdistrict
16th Assembly District Rebecca Bauer-Kahan (D)
41.9% of this CD
61.7% of the subdistrict
9th State Senate District Tim Grayson (D)
85.7% of this CD
65.6% of the subdistrict
3rd State Senate District Christopher Cabaldon (D)
14.3% of this CD
10.5% of the subdistrict
82.9% of this CD
82.9% of the subdistrict
4.3% of this CD
4.3% of the subdistrict
2.3% of this CD
2.3% of the subdistrict
100.0% of this CD
7.6% of the subdistrict
City of Brentwood Susannah Meyer
8.5% of this CD
100.0% of the subdistrict
1.5% of this CD
100.0% of the subdistrict
16.5% of this CD
100.0% of the subdistrict
5.7% of this CD
100.0% of the subdistrict
3.3% of this CD
100.0% of the subdistrict
City of Martinez Brianne Zorn
4.9% of this CD
100.0% of the subdistrict
2.2% of this CD
100.0% of the subdistrict
3.2% of this CD
55.9% of the subdistrict
2.6% of this CD
100.0% of the subdistrict
4.6% of this CD
100.0% of the subdistrict
City of San Ramon Mark Armstrong
11.4% of this CD
100.0% of the subdistrict
9.2% of this CD
100.0% of the subdistrict
15.7% of this CD
100.0% of the subdistrict
0.5% of this CD
3.0% of the subdistrict
8.6% of this CD
96.9% of the subdistrict
2.0% of this CD
100.0% of the subdistrict
0.0% of this CD
98.2% of the subdistrict
0.3% of this CD
15.1% of the subdistrict
0.5% of this CD
99.1% of the subdistrict
3.8% of this CD
100.0% of the subdistrict
13.9% of this CD
82.8% of the subdistrict
4.1% of this CD
100.0% of the subdistrict
2.3% of this CD
100.0% of the subdistrict
33.3% of this CD
94.8% of the subdistrict
2.7% of this CD
51.1% of the subdistrict
2.6% of this CD
99.9% of the subdistrict
0.2% of this CD
2.7% of the subdistrict
21.5% of this CD
100.0% of the subdistrict
7.1% of this CD
100.0% of the subdistrict
89.5% of this CD
58.2% of the subdistrict
10.5% of this CD
11.2% of the subdistrict
89.5% of this CD
58.2% of the subdistrict
0.2% of this CD
100.0% of the subdistrict
2.0% of this CD
100.0% of the subdistrict
0.1% of this CD
100.0% of the subdistrict
3.2% of this CD
100.0% of the subdistrict
0.2% of this CD
100.0% of the subdistrict
0.7% of this CD
100.0% of the subdistrict
0.2% of this CD
100.0% of the subdistrict
0.1% of this CD
100.0% of the subdistrict
0.9% of this CD
100.0% of the subdistrict
0.3% of this CD
61.9% of the subdistrict
0.2% of this CD
100.0% of the subdistrict
2.0% of this CD
100.0% of the subdistrict
1.3% of this CD
100.0% of the subdistrict
0.2% of this CD
100.0% of the subdistrict
0.4% of this CD
100.0% of the subdistrict
0.2% of this CD
100.0% of the subdistrict
0.1% of this CD
100.0% of the subdistrict
0.6% of this CD
100.0% of the subdistrict
0.0% of this CD
100.0% of the subdistrict
0.4% of this CD
100.0% of the subdistrict
0.5% of this CD
100.0% of the subdistrict
0.8% of this CD
100.0% of the subdistrict
0.1% of this CD
100.0% of the subdistrict
0.6% of this CD
100.0% of the subdistrict

Cities

13 jurisdictions
City of Brentwood Susannah Meyer
8.5% of this CD
100.0% of the city
2.1% of this CD
100.0% of the subdistrict
City of Brentwood - District 2 Pa'tanisha Pierson
2.1% of this CD
100.0% of the subdistrict
2.2% of this CD
100.0% of the subdistrict
2.1% of this CD
100.0% of the subdistrict
1.5% of this CD
100.0% of the city
16.5% of this CD
100.0% of the city
City of Concord - District 1 Laura Hoffmeister
3.2% of this CD
100.0% of the subdistrict
3.5% of this CD
100.0% of the subdistrict
3.4% of this CD
100.0% of the subdistrict
3.2% of this CD
100.0% of the subdistrict
3.2% of this CD
100.0% of the subdistrict
5.7% of this CD
100.0% of the city
3.3% of this CD
100.0% of the city
City of Martinez Brianne Zorn
4.9% of this CD
100.0% of the city
1.2% of this CD
100.0% of the subdistrict
1.2% of this CD
100.0% of the subdistrict
City of Martinez - District 3 Satinder S. Malhi
1.3% of this CD
100.0% of the subdistrict
1.2% of this CD
100.0% of the subdistrict
2.2% of this CD
100.0% of the city
3.2% of this CD
55.9% of the city
0.6% of this CD
48.1% of the subdistrict
0.6% of this CD
49.3% of the subdistrict
1.2% of this CD
100.0% of the subdistrict
0.9% of this CD
80.4% of the subdistrict
2.6% of this CD
100.0% of the city
4.6% of this CD
100.0% of the city
0.9% of this CD
100.0% of the subdistrict
0.9% of this CD
100.0% of the subdistrict
0.9% of this CD
100.0% of the subdistrict
0.9% of this CD
100.0% of the subdistrict
0.9% of this CD
100.0% of the subdistrict
City of San Leandro Juan González III
0.4% of this CD
2.9% of the city
City of San Leandro - District 1 Sbeydeh Viveros-Walton
0.3% of this CD
17.0% of the subdistrict
City of San Ramon Mark Armstrong
11.4% of this CD
100.0% of the city
2.7% of this CD
100.0% of the subdistrict
3.0% of this CD
99.8% of the subdistrict
2.9% of this CD
100.0% of the subdistrict
2.8% of this CD
100.0% of the subdistrict
9.2% of this CD
100.0% of the city

State Assembly

4 jurisdictions
11th Assembly District Lori D. Wilson (D)
5.8% of this CD
8.5% of the AD
15th Assembly District Anamarie Ávila Farías (D)
41.9% of this CD
62.2% of the AD
16th Assembly District Rebecca Bauer-Kahan (D)
41.9% of this CD
61.7% of the AD
20th Assembly District Liz Ortega (D)
10.4% of this CD
15.3% of the AD

State Senate

2 jurisdictions
3rd State Senate District Christopher Cabaldon (D)
14.3% of this CD
10.5% of the SD
9th State Senate District Tim Grayson (D)
85.7% of this CD
65.6% of the SD

Congressional (2022)

4 jurisdictions
82.9% of this CD
82.9% of the CD
10.5% of this CD
10.5% of the CD
4.3% of this CD
4.3% of the CD
2.3% of this CD
2.3% of the CD

Board of Equalization

1 jurisdiction
100.0% of this CD
7.6% of the district

School Districts

20 jurisdictions
15.7% of this CD
100.0% of the district
0.5% of this CD
3.0% of the district
0.5% of this CD
14.4% of the trustee area
8.6% of this CD
96.9% of the district
2.0% of this CD
100.0% of the district
0.0% of this CD
98.2% of the district
6.1% of this CD
87.7% of the district
1.3% of this CD
94.0% of the trustee area
1.2% of this CD
82.8% of the trustee area
0.9% of this CD
61.7% of the trustee area
1.5% of this CD
99.6% of the trustee area
1.4% of this CD
100.0% of the trustee area
0.3% of this CD
15.1% of the district
0.5% of this CD
99.1% of the district
3.8% of this CD
100.0% of the district
13.9% of this CD
82.8% of the district
Liberty Union High - District 1 Yolanda Peña-Mendrek
2.0% of this CD
59.0% of the trustee area
3.1% of this CD
92.6% of the trustee area
3.4% of this CD
100.0% of the trustee area
2.1% of this CD
63.2% of the trustee area
3.3% of this CD
99.3% of the trustee area
4.1% of this CD
100.0% of the district
0.8% of this CD
100.0% of the trustee area
Martinez Unified - District 2 Anne Horack Martin
0.8% of this CD
100.0% of the trustee area
0.8% of this CD
100.0% of the trustee area
Martinez Unified - District 4 Courtney Masella-O'Brien
0.8% of this CD
100.0% of the trustee area
0.8% of this CD
99.9% of the trustee area
2.3% of this CD
100.0% of the district
33.3% of this CD
94.8% of the district
5.3% of this CD
74.2% of the trustee area
7.0% of this CD
100.0% of the trustee area
7.0% of this CD
100.0% of the trustee area
7.0% of this CD
100.0% of the trustee area
7.0% of this CD
100.0% of the trustee area
2.7% of this CD
51.1% of the district
0.8% of this CD
77.3% of the trustee area
1.1% of this CD
100.0% of the trustee area
0.3% of this CD
28.1% of the trustee area
0.6% of this CD
51.8% of the trustee area
2.6% of this CD
99.9% of the district
0.2% of this CD
2.7% of the district
San Leandro Unified Peter Oshinski
0.4% of this CD
4.5% of the district
0.0% of this CD
2.5% of the trustee area
0.4% of this CD
24.4% of the trustee area
3.9% of this CD
35.7% of the district
2.2% of this CD
95.7% of the trustee area
1.8% of this CD
83.8% of the trustee area
21.5% of this CD
100.0% of the district
4.1% of this CD
100.0% of the trustee area
4.4% of this CD
100.0% of the trustee area
4.3% of this CD
100.0% of the trustee area
4.3% of this CD
100.0% of the trustee area
4.4% of this CD
99.9% of the trustee area
7.1% of this CD
100.0% of the district

Community College

2 jurisdictions
10.5% of this CD
11.2% of the CCD
3.5% of this CD
25.5% of the trustee area
6.9% of this CD
51.3% of the trustee area
0.3% of this CD
2.4% of the trustee area
89.5% of this CD
58.2% of the CCD
26.9% of this CD
87.5% of the trustee area
7.5% of this CD
24.1% of the trustee area
25.6% of this CD
83.3% of the trustee area
29.2% of this CD
97.1% of the trustee area

Supervisor Districts

5 jurisdictions
10.1% of this CD
23.1% of the district
32.2% of this CD
100.0% of the district
14.4% of this CD
49.2% of the district
32.0% of this CD
100.0% of the district
County of Contra Costa - District 5 Shanelle Scales-Preston
11.0% of this CD
37.5% of the district

County Board of Ed

2 jurisdictions
10.5% of this CD
4.7% of the district
10.4% of this CD
33.9% of the trustee area
89.5% of this CD
58.2% of the district
30.1% of this CD
100.0% of the trustee area
15.0% of this CD
50.2% of the trustee area
30.1% of this CD
100.0% of the trustee area
14.4% of this CD
44.1% of the trustee area

Neighborhoods

1 jurisdiction
0.0% of this CD
4.1% of the neighborhood

Unincorporated Communities

26 jurisdictions
0.2% of this CD
100.0% of the community
2.0% of this CD
100.0% of the community
0.1% of this CD
100.0% of the community
3.1% of this CD
100.0% of the community
3.2% of this CD
100.0% of the community
1.3% of this CD
100.0% of the community
0.2% of this CD
100.0% of the community
0.7% of this CD
100.0% of the community
0.2% of this CD
100.0% of the community
7.0% of this CD
79.4% of the community
0.1% of this CD
100.0% of the community
0.9% of this CD
100.0% of the community
0.3% of this CD
61.9% of the community
0.2% of this CD
100.0% of the community
2.0% of this CD
100.0% of the community
0.2% of this CD
100.0% of the community
0.4% of this CD
100.0% of the community
0.2% of this CD
100.0% of the community
0.1% of this CD
100.0% of the community
0.6% of this CD
100.0% of the community
0.0% of this CD
100.0% of the community
0.4% of this CD
100.0% of the community
0.5% of this CD
100.0% of the community
0.8% of this CD
100.0% of the community
0.1% of this CD
100.0% of the community
0.6% of this CD
100.0% of the community
Help
Loading...
Loading...