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County of San Mateo - District 4

Supervisor: Lisa Gauthier
153,862 Population
78,215 Voters

County of San Mateo - District 4

Supervisor: Lisa Gauthier
153,862 Population
78,215 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 San Mateo - District 4
Total Population 153,862
49 overlapping jurisdictions
11 jurisdiction types
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Counties

1 jurisdiction
100.0% of this district
20.1% of the county
21st Assembly District Diane Papan (D)
88.6% of this district
27.6% of the subdistrict
23rd Assembly District Marc Berman (D)
11.4% of this district
3.7% of the subdistrict
13th State Senate District Josh Becker (D)
100.0% of this district
15.2% of the subdistrict
91.3% of this district
18.5% of the subdistrict
8.8% of this district
1.8% of the subdistrict
100.0% of this district
1.5% of the subdistrict
19.5% of this district
100.0% of the subdistrict
12.9% of this district
58.6% of the subdistrict
54.9% of this district
100.0% of the subdistrict
8.3% of this district
28.3% of the subdistrict
8.8% of this district
48.5% of the subdistrict
23.7% of this district
100.0% of the subdistrict
59.1% of this district
90.2% of the subdistrict
100.0% of this district
59.0% of the subdistrict
97.7% of this district
19.8% of the subdistrict
100.0% of this district
20.1% of the subdistrict
91.3% of this district
18.5% of the subdistrict
8.8% of this district
1.8% of the subdistrict
9.1% of this district
99.9% of the subdistrict

Cities

3 jurisdictions
19.5% of this district
100.0% of the city
12.9% of this district
58.6% of the city
4.3% of this district
100.0% of the subdistrict
4.4% of this district
100.0% of the subdistrict
4.3% of this district
98.1% of the subdistrict
54.9% of this district
100.0% of the city
8.3% of this district
100.0% of the subdistrict
7.7% of this district
100.0% of the subdistrict
7.9% of this district
100.0% of the subdistrict
City of Redwood City - District 4 Elmer Martínez Saballos
7.6% of this district
100.0% of the subdistrict
7.9% of this district
100.0% of the subdistrict
7.7% of this district
100.0% of the subdistrict
7.7% of this district
100.0% of the subdistrict

State Assembly

2 jurisdictions
21st Assembly District Diane Papan (D)
88.6% of this district
27.6% of the AD
23rd Assembly District Marc Berman (D)
11.4% of this district
3.7% of the AD

State Senate

1 jurisdiction
13th State Senate District Josh Becker (D)
100.0% of this district
15.2% of the SD

Congressional (2022)

2 jurisdictions
91.3% of this district
18.5% of the CD
8.8% of this district
1.8% of the CD

Congressional (2026)

2 jurisdictions
91.3% of this district
18.5% of the CD
8.8% of this district
1.8% of the CD

Board of Equalization

1 jurisdiction
100.0% of this district
1.5% of the district

School Districts

5 jurisdictions
8.3% of this district
28.3% of the district
0.6% of this district
11.1% of the trustee area
1.7% of this district
29.6% of the trustee area
6.0% of this district
100.0% of the trustee area
8.8% of this district
48.5% of the district
23.7% of this district
100.0% of the district
59.1% of this district
90.2% of the district
Redwood City Elementary - District 1 Jennifer Ng Kwing King
8.4% of this district
63.2% of the trustee area
12.6% of this district
100.0% of the trustee area
12.4% of this district
90.8% of the trustee area
13.0% of this district
100.0% of the trustee area
12.8% of this district
98.6% of the trustee area
100.0% of this district
59.0% of the district
16.6% of this district
47.4% of the trustee area
10.8% of this district
32.3% of the trustee area
12.7% of this district
37.9% of the trustee area
26.6% of this district
77.5% of the trustee area
33.4% of this district
100.0% of the trustee area

Community College

1 jurisdiction
97.7% of this district
19.8% of the CCD
3.0% of this district
3.1% of the trustee area
97.1% of this district
96.7% of the trustee area

County Board of Ed

1 jurisdiction
100.0% of this district
20.1% of the district
8.3% of this district
11.8% of the trustee area
44.3% of this district
63.8% of the trustee area
47.4% of this district
67.0% of the trustee area

Unincorporated Communities

1 jurisdiction
9.1% of this district
99.9% of the community
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