Region One (includes counties Los Angeles, Orange, San Luis Obispo, Santa Barbara, Ventura)
| 527,768
|
Region Two (includes counties Alameda, Contra Costa, Del Norte, Humboldt, Lake, Marin, Mendocino, Monterey, Napa, San Benito, San Francisco, San Mateo, Santa Clara, Santa Cruz, Solano, Sonoma)
| 329,813
|
Region Three (includes counties Butte, Colusa, Glenn, Lassen, Modoc, Plumas, Shasta, Sierra, Siskiyou, Sutter, Tehama, Trinity, Yuba)
| 24,253
|
Region Four (includes counties Alpine, Amador, Calaveras, El Dorado, Nevada, Placer, Sacramento, San Joaquin, Stanislaus, Tuolumne, Yolo)
| 69,890
|
Region Five (includes counties Fresno, Kern, Kings, Madera, Mariposa, Merced, Tulare)
| 46,446
|
Region Six (includes counties Imperial, Inyo, Mono, Riverside, San Bernardino, San Diego)
| 202,975
|
Unknown*
| 102,373
|
Total
| 1,303,518
|