29th Senate District | Republican Leader
Portions of Los Angeles, Orange and San Bernardino Counties.
36th Senate District
Portions of Riverside and San Diego Counties.
14th Senate District
Tuolumne County. Portions of Fresno, Madera, Mariposa, San Joaquin and Stanislaus Counties.
12th Senate District
Merced and San Benito counties. Portions of Madera, Monterey, and Stanislaus Counties.
23rd Senate District
Portions of Riverside and San Bernardino County.
18th Senate District
Inyo County. Portions of Kern and Tulare Counties.
1st Senate District
Portions of Alpine, El Dorado, Lassen, Modoc, Nevada, Placer, Plumas, Sacramento, Sierra, Shasta and Siskiyou Counties.
21st Senate District
Portions of Los Angeles & San Bernardino Counties.
4th Senate District
Butte, Colusa, Del Norte, and Glenn Counties. Portions of Nevada, Placer, Shasta, Siskiyou, Sutter, Tehama, Trinity and Yuba Counties.
16th Senate District
The current 16th Senate District includes all of Kings County and portions of Fresno, Kern, and Tulare Counties.
37th Senate District
Portions of Orange County.
38th Senate District
Portions of Orange and San Diego Counties.