District/County Cross-reference
California State Senate Districts


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The table below lists the California Senate Districts along with the counties with which they are associated. Names in italics denote counties that are wholly contained within the boundaries of the district.

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DistrictCounties
1Alpine, Amador, Butte, Calaveras, El Dorado, Lassen, Modoc, Mono, Nevada, Placer, Plumas, Sierra, Yuba
2Del Norte, Humboldt, Lake, Mendocino, Napa, Solano, Sonoma
3Marin, San Francisco, Sonoma
4Butte, Colusa, Glenn, Sacramento, Shasta, Siskiyou, Solano, Sutter, Tehema, Trinity, Yolo
5Sacramento, San Joaquin
6Sacramento
7Alameda, Contra Costa
8San Francisco, San Mateo
9Alameda, Contra Costa
10Alameda, Santa Clara
11San Mateo, Santa Clara
12Fresno, Madera, Mariposa, Merced, San Joaquin, Stanislaus, Tuolumne
13Santa Clara
14Fresno, Kern, Tulare
15Monterey, San Benito, Santa Clara, SANTA CRUZ
16Fresno, Kern, Kings, Madera, Tulare
17Inyo, Kern, Los Angeles, San Bernardino
18San Luis Obispo, Santa Barbara, Ventura
19Los Angeles, Ventura
20Los Angeles
21Los Angeles
22Los Angeles
23Los Angeles
24Los Angeles
25Los Angeles
26Los Angeles
27Los Angeles
28Los Angeles
29Los Angeles
30Los Angeles
31Riverside, San Bernardino
32Los Angeles, San Bernardino
33Orange
34Orange
35Orange
36Riverside, San Diego
37Imperial, Riverside, San Diego
38Orange, San Diego
39San Diego
40San Diego