1887–1957[]
1957–2004[]
2004–2014, 2016–present[]
2014–2016[]
Counties of California
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| Alameda | Alpine | Amador | Butte | Calaveras | Colusa | Contra Costa | Del Norte | El Dorado | Fresno | Glenn | Humboldt | Imperial | Inyo | Kern | Kings | Lake | Lassen | Los Angeles | Madera | Marin | Mariposa | Mendocino | Merced | Modoc | Mono | Monterey | Napa | Nevada | Orange | Placer | Plumas | Riverside | Sacramento | San Benito | San Bernardino | San Diego | San Francisco1 | San Joaquin | San Luis Obispo | San Mateo | Santa Barbara | Santa Clara | Santa Cruz | Shasta | Sierra | Siskiyou | Solano | Sonoma | Stanislaus | Sutter | Tehama | Trinity | Tulare | Tuolumne | Ventura | Yolo | Yuba 1Consolidated city-county |