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Contra Costa and Alameda Counties

9th State Senate District

Senator: Tim Grayson (D)
992,656 Population
619,414 Voters
Contra Costa and Alameda Counties

9th State Senate District

Senator: Tim Grayson (D)
992,656 Population
619,414 Voters

Unlock full voter and turnout data for 9th State Senate District Voter counts, turnout history, and demographics—ready for your next briefing in minutes, not hours.

Population Overlap

9th State Senate District
Total Population 992,656
169 overlapping jurisdictions
12 jurisdiction types
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Counties

2 jurisdictions
22.9% of this SD
13.5% of the county
12.2% of this SD
36.8% of the subdistrict
10.7% of this SD
31.9% of the subdistrict
16th Assembly District Rebecca Bauer-Kahan (D)
32.1% of this SD
61.7% of the subdistrict
20th Assembly District Liz Ortega (D)
22.9% of this SD
43.9% of the subdistrict
59.6% of this SD
77.9% of the subdistrict
7.2% of this SD
9.3% of the subdistrict
15.8% of this SD
20.6% of the subdistrict
100.0% of this SD
9.9% of the subdistrict
City of San Leandro Juan González III
9.2% of this SD
99.9% of the subdistrict
5.3% of this SD
99.0% of the subdistrict
1.9% of this SD
10.0% of the subdistrict
San Leandro Unified Peter Oshinski
7.4% of this SD
98.7% of the subdistrict
8.3% of this SD
99.0% of the subdistrict
22.8% of this SD
31.6% of the subdistrict
22.9% of this SD
13.5% of the subdistrict
65.6% of this SD
85.7% of the subdistrict
7.2% of this SD
9.3% of the subdistrict
7.7% of this SD
10.1% of the subdistrict
2.4% of this SD
100.0% of the subdistrict
6.7% of this SD
100.0% of the subdistrict
1.6% of this SD
100.0% of the subdistrict
3.0% of this SD
100.0% of the subdistrict
77.1% of this SD
65.5% of the county
24.7% of this SD
100.0% of the subdistrict
9.2% of this SD
41.1% of the subdistrict
24.5% of this SD
100.0% of the subdistrict
County of Contra Costa - District 5 Shanelle Scales-Preston
18.8% of this SD
83.9% of the subdistrict
15th Assembly District Anamarie Ávila Farías (D)
45.1% of this SD
87.3% of the subdistrict
16th Assembly District Rebecca Bauer-Kahan (D)
32.1% of this SD
61.7% of the subdistrict
59.6% of this SD
77.9% of the subdistrict
17.5% of this SD
22.8% of the subdistrict
100.0% of this SD
9.9% of the subdistrict
City of Antioch Ron Bernal
11.6% of this SD
100.0% of the subdistrict
1.1% of this SD
100.0% of the subdistrict
12.7% of this SD
100.0% of the subdistrict
4.4% of this SD
100.0% of the subdistrict
2.6% of this SD
100.0% of the subdistrict
City of Martinez Brianne Zorn
3.8% of this SD
100.0% of the subdistrict
1.7% of this SD
100.0% of the subdistrict
2.0% of this SD
100.0% of the subdistrict
7.7% of this SD
100.0% of the subdistrict
3.5% of this SD
100.0% of the subdistrict
City of San Ramon Mark Armstrong
8.7% of this SD
100.0% of the subdistrict
7.1% of this SD
100.0% of the subdistrict
12.0% of this SD
100.0% of the subdistrict
11.5% of this SD
95.0% of the subdistrict
0.3% of this SD
4.0% of the subdistrict
0.0% of this SD
98.2% of the subdistrict
0.4% of this SD
23.3% of the subdistrict
2.9% of this SD
100.0% of the subdistrict
0.3% of this SD
2.2% of the subdistrict
3.1% of this SD
100.0% of the subdistrict
1.7% of this SD
100.0% of the subdistrict
26.9% of this SD
100.0% of the subdistrict
2.0% of this SD
100.0% of the subdistrict
6.4% of this SD
100.0% of the subdistrict
16.5% of this SD
100.0% of the subdistrict
5.4% of this SD
100.0% of the subdistrict
77.1% of this SD
65.5% of the subdistrict
22.8% of this SD
31.6% of the subdistrict
77.1% of this SD
65.5% of the subdistrict
19.4% of this SD
25.3% of the subdistrict
65.6% of this SD
85.7% of the subdistrict
0.1% of this SD
100.0% of the subdistrict
1.5% of this SD
100.0% of the subdistrict
0.1% of this SD
100.0% of the subdistrict
2.4% of this SD
100.0% of the subdistrict
0.5% of this SD
100.0% of the subdistrict
0.1% of this SD
100.0% of the subdistrict
0.1% of this SD
100.0% of the subdistrict
0.7% of this SD
100.0% of the subdistrict
0.3% of this SD
100.0% of the subdistrict
0.1% of this SD
100.0% of the subdistrict
1.0% of this SD
100.0% of the subdistrict
0.3% of this SD
100.0% of the subdistrict
0.1% of this SD
100.0% of the subdistrict
0.1% of this SD
100.0% of the subdistrict
0.4% of this SD
100.0% of the subdistrict
0.0% of this SD
100.0% of the subdistrict
0.3% of this SD
100.0% of the subdistrict
0.4% of this SD
100.0% of the subdistrict
0.6% of this SD
100.0% of the subdistrict
0.1% of this SD
100.0% of the subdistrict
0.4% of this SD
100.0% of the subdistrict

Cities

13 jurisdictions
City of Antioch Ron Bernal
11.6% of this SD
100.0% of the city
City of Antioch - District 1 Tamisha Torres-Walker
2.9% of this SD
100.0% of the subdistrict
2.9% of this SD
100.0% of the subdistrict
3.0% of this SD
100.0% of the subdistrict
2.8% of this SD
100.0% of the subdistrict
1.1% of this SD
100.0% of the city
12.7% of this SD
100.0% of the city
City of Concord - District 1 Laura Hoffmeister
2.5% of this SD
100.0% of the subdistrict
2.7% of this SD
100.0% of the subdistrict
2.6% of this SD
100.0% of the subdistrict
2.4% of this SD
100.0% of the subdistrict
2.5% of this SD
100.0% of the subdistrict
4.4% of this SD
100.0% of the city
2.6% of this SD
100.0% of the city
City of Martinez Brianne Zorn
3.8% of this SD
100.0% of the city
0.9% of this SD
100.0% of the subdistrict
0.9% of this SD
100.0% of the subdistrict
City of Martinez - District 3 Satinder S. Malhi
1.0% of this SD
100.0% of the subdistrict
0.9% of this SD
100.0% of the subdistrict
1.7% of this SD
100.0% of the city
2.0% of this SD
100.0% of the city
7.7% of this SD
100.0% of the city
3.5% of this SD
100.0% of the city
0.7% of this SD
100.0% of the subdistrict
0.7% of this SD
100.0% of the subdistrict
0.7% of this SD
100.0% of the subdistrict
0.7% of this SD
100.0% of the subdistrict
0.7% of this SD
100.0% of the subdistrict
City of San Leandro Juan González III
9.2% of this SD
99.9% of the city
City of San Leandro - District 1 Sbeydeh Viveros-Walton
1.5% of this SD
100.0% of the subdistrict
1.5% of this SD
100.0% of the subdistrict
City of San Leandro - District 3 Victor Aguilar, Jr.
1.6% of this SD
100.0% of the subdistrict
1.5% of this SD
100.0% of the subdistrict
1.5% of this SD
100.0% of the subdistrict
1.6% of this SD
100.0% of the subdistrict
City of San Ramon Mark Armstrong
8.7% of this SD
100.0% of the city
2.1% of this SD
100.0% of the subdistrict
2.3% of this SD
99.8% of the subdistrict
2.2% of this SD
100.0% of the subdistrict
2.2% of this SD
100.0% of the subdistrict
7.1% of this SD
100.0% of the city

State Assembly

3 jurisdictions
15th Assembly District Anamarie Ávila Farías (D)
45.1% of this SD
87.3% of the AD
16th Assembly District Rebecca Bauer-Kahan (D)
32.1% of this SD
61.7% of the AD
20th Assembly District Liz Ortega (D)
22.9% of this SD
43.9% of the AD

Congressional (2022)

4 jurisdictions
59.6% of this SD
77.9% of the CD
7.2% of this SD
9.3% of the CD
15.8% of this SD
20.6% of the CD
17.5% of this SD
22.8% of the CD

Congressional (2026)

4 jurisdictions
65.6% of this SD
85.7% of the CD
7.2% of this SD
9.3% of the CD
7.7% of this SD
10.1% of the CD
19.4% of this SD
25.3% of the CD

Board of Equalization

1 jurisdiction
100.0% of this SD
9.9% of the district

School Districts

18 jurisdictions
12.0% of this SD
100.0% of the district
11.5% of this SD
95.0% of the district
Antioch Unified - District 1 Antonio Hernandez
2.5% of this SD
99.9% of the trustee area
1.9% of this SD
75.6% of the trustee area
2.4% of this SD
100.0% of the trustee area
Antioch Unified - District 4 Olga Cobos-Smith
2.3% of this SD
100.0% of the trustee area
Antioch Unified - District 5 Mary Helen Rocha
2.5% of this SD
100.0% of the trustee area
0.3% of this SD
4.0% of the district
0.0% of this SD
98.2% of the district
5.3% of this SD
99.0% of the district
1.0% of this SD
100.0% of the trustee area
1.1% of this SD
100.0% of the trustee area
1.0% of this SD
94.7% of the trustee area
1.1% of this SD
99.6% of the trustee area
1.0% of this SD
100.0% of the trustee area
1.9% of this SD
10.0% of the district
0.4% of this SD
23.3% of the district
2.9% of this SD
100.0% of the district
0.3% of this SD
2.2% of the district
0.2% of this SD
7.4% of the trustee area
0.1% of this SD
3.3% of the trustee area
3.1% of this SD
100.0% of the district
0.6% of this SD
100.0% of the trustee area
Martinez Unified - District 2 Anne Horack Martin
0.6% of this SD
100.0% of the trustee area
0.7% of this SD
100.0% of the trustee area
Martinez Unified - District 4 Courtney Masella-O'Brien
0.6% of this SD
100.0% of the trustee area
0.6% of this SD
100.0% of the trustee area
1.7% of this SD
100.0% of the district
26.9% of this SD
100.0% of the district
5.4% of this SD
100.0% of the trustee area
5.4% of this SD
100.0% of the trustee area
5.4% of this SD
100.0% of the trustee area
5.4% of this SD
100.0% of the trustee area
5.4% of this SD
100.0% of the trustee area
2.0% of this SD
100.0% of the district
6.4% of this SD
100.0% of the district
San Leandro Unified Peter Oshinski
7.4% of this SD
98.7% of the district
1.3% of this SD
100.0% of the trustee area
1.1% of this SD
91.8% of the trustee area
1.3% of this SD
100.0% of the trustee area
1.2% of this SD
100.0% of the trustee area
1.2% of this SD
100.0% of the trustee area
1.3% of this SD
100.0% of the trustee area
8.3% of this SD
99.0% of the district
1.7% of this SD
100.0% of the trustee area
1.7% of this SD
100.0% of the trustee area
1.6% of this SD
100.0% of the trustee area
1.7% of this SD
100.0% of the trustee area
1.5% of this SD
94.8% of the trustee area
16.5% of this SD
100.0% of the district
3.1% of this SD
100.0% of the trustee area
3.4% of this SD
100.0% of the trustee area
3.3% of this SD
100.0% of the trustee area
3.3% of this SD
100.0% of the trustee area
3.4% of this SD
99.9% of the trustee area
5.4% of this SD
100.0% of the district

Community College

2 jurisdictions
22.8% of this SD
31.6% of the CCD
10.3% of this SD
99.1% of the trustee area
4.8% of this SD
45.5% of the trustee area
5.9% of this SD
57.2% of the trustee area
1.9% of this SD
18.4% of the trustee area
0.3% of this SD
2.4% of the trustee area
77.1% of this SD
65.5% of the CCD
23.5% of this SD
100.0% of the trustee area
17.9% of this SD
75.4% of the trustee area
19.7% of this SD
83.8% of the trustee area
15.7% of this SD
68.1% of the trustee area

Supervisor Districts

6 jurisdictions
12.2% of this SD
36.8% of the district
10.7% of this SD
31.9% of the district
24.7% of this SD
100.0% of the district
9.2% of this SD
41.1% of the district
24.5% of this SD
100.0% of the district
County of Contra Costa - District 5 Shanelle Scales-Preston
18.8% of this SD
83.9% of the district

County Board of Ed

2 jurisdictions
22.9% of this SD
13.5% of the district
1.0% of this SD
4.1% of the trustee area
21.9% of this SD
93.0% of the trustee area
77.1% of this SD
65.5% of the district
23.0% of this SD
100.0% of the trustee area
19.3% of this SD
84.2% of the trustee area
23.0% of this SD
100.0% of the trustee area
11.8% of this SD
47.2% of the trustee area

Neighborhoods

8 jurisdictions
0.0% of this SD
3.2% of the neighborhood
0.0% of this SD
9.4% of the neighborhood
0.0% of this SD
3.6% of the neighborhood
0.0% of this SD
5.9% of the neighborhood
0.0% of this SD
6.5% of the neighborhood
0.0% of this SD
5.1% of the neighborhood
0.0% of this SD
8.0% of the neighborhood
0.0% of this SD
11.2% of the neighborhood

Unincorporated Communities

25 jurisdictions
0.1% of this SD
100.0% of the community
1.5% of this SD
100.0% of the community
0.1% of this SD
100.0% of the community
2.4% of this SD
100.0% of the community
2.4% of this SD
100.0% of the community
1.0% of this SD
100.0% of the community
0.5% of this SD
100.0% of the community
0.1% of this SD
100.0% of the community
6.7% of this SD
100.0% of the community
1.6% of this SD
100.0% of the community
0.1% of this SD
100.0% of the community
0.7% of this SD
100.0% of the community
0.3% of this SD
100.0% of the community
0.1% of this SD
100.0% of the community
0.3% of this SD
100.0% of the community
0.1% of this SD
100.0% of the community
0.1% of this SD
100.0% of the community
0.4% of this SD
100.0% of the community
0.0% of this SD
100.0% of the community
0.3% of this SD
100.0% of the community
3.0% of this SD
100.0% of the community
0.4% of this SD
100.0% of the community
0.6% of this SD
100.0% of the community
0.1% of this SD
100.0% of the community
0.4% of this SD
100.0% of the community
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