| Sentro ng Rehiyon | Mga county |
| Alta California Regional Center | Alpine, Colusa, El Dorado, Nevada, Placer, Sacramento, Sierra, Sutter, Yuba, at Yolo |
| Central Valley Regional Center | Fresno, Kings, Madera, Mariposa, Merced, at Tulare |
| Eastern Lost Angeles Regional Center | Los Angeles (Alhambra, East Los Angeles, Northeast, Whittier) |
| Far Northern Regional Center | Butte, Glenn, Lassen, Modoc, Plumas, Shasta, Siskiyou, Tehama, Trinity |
| Frank D. Lanterman Regional Center | Los Angeles (Central, Glendale, Hollywood-Wilshire, Pasadena) |
| Golden Gate Regional Center | Marin, San Mateo, at San Francisco |
| Sentro ng Panrehiyong Harbor | Los Angeles (Bellflower, Harbor, Long Beach, at Torrance) |
| Inland Regional Center | Riverside at San Bernardino |
| Kern Regional Center | Inyo, Kern, at Mono |
| North Bay Regional Center | Napa, Solano, at Sonoma |
| North Los Angeles County Regional Center | Los Angeles (East Valley, San Fernando, at West Valley) |
| Redwood Coast Regional Center | Del Norte, Humboldt, Lawa, at Mendocino |
| Regional Center ng East Bay | Alameda at Contra Costa |
| Regional Center ng Orange County | Orange County |
| San Andreas Regional Center | Monterey, San Benito, Santa Clara, at Santa Cruz |
| San Diego Regional Center | Imperial at San Diego |
| San Gabriel/Pomona Regional Center | Los Angeles (El Monte, Glendora, Monrovia, at Pomona) |
| South Central Los Angeles Regional Center | Los Angeles (Compton, San Antonio, South, Southeast, at Southwest) |
| Tri-Counties Regional Center | San Luis Obispo, Santa Barbara, at Ventura |
| Valley Mountain Regional Center | Amador, Calaveras, San Joaquin, Stanislaus, at Tuolumne |
| Westside Regional Center | Los Angeles (Inglewood at Santa Monica–West)
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