Region 1: Del Norte, Humboldt, Trinity, Mendocino, Lake, Sonoma

Region 2: Butte, Colusa, Glenn, Lassen, Modoc, Plumas, Shasta, Siskiyou, Tehama

Region 3: Alameda, Contra Costa, Marin, Napa, Solano

Region 4: Alpine, Amador, Calaveras, El Dorado, Mono, Nevada, Placer, Sacramento, San Joaquin, Sierra, Stanislaus, Sutter, Tuolumne, Yolo, Yuba

Region 5: Monterey, San Benito, San Francisco, San Mateo, San Clara, Santa Cruz

Region 6: Fresno, Madera, Mariposa, Merced

Region 7: Inyo, Kern, Kings

Region 8: San Luis Obispo, Santa Barbara, Ventura

Region 9: Los Angeles

Region 10: Riverside, San Bernardino

Region 11: Orange

Region 12: Imperial, San Diego