| | San Francisco County | CA | 06075 | San Francisco-San
Mateo-Redwood City, CA 41884 | San
Francisco-Oakland-Fremont,
CA 41860 | San Jose-San
Francisco-Oakland, CA 488 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=SanFranciscoCounty+CA |
| | San Diego County | CA | 06073 | | San Diego-Chula
Vista-Carlsbad, CA 41740 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=SanDiegoCounty+CA |
| | San Bernardino County | CA | 06071 | | Riverside-San
Bernardino-Ontario, CA 40140 | Los Angeles-Long Beach,
CA 348 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=SanBernardinoCounty+CA |
| | San Benito County | CA | 06069 | | San Jose-Sunnyvale-Santa
Clara, CA 41940 | San Jose-San
Francisco-Oakland, CA 488 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=SanBenitoCounty+CA |
| | Sacramento County | CA | 06067 | | Sacramento-Roseville-Folsom,
CA 40900 | Sacramento-Roseville, CA 472 | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=SacramentoCounty+CA |
| | Riverside County | CA | 06065 | | Riverside-San
Bernardino-Ontario, CA 40140 | Los Angeles-Long Beach,
CA 348 | Central | metro county (urban) | recreation | https://maps.google.com/?q=RiversideCounty+CA |
| | Plumas County | CA | 06063 | | | | | nonmetro county (rural) | recreation | https://maps.google.com/?q=PlumasCounty+CA |
| | Placer County | CA | 06061 | | Sacramento-Roseville-Folsom,
CA 40900 | Sacramento-Roseville, CA 472 | Central | metro county (urban) | recreation | https://maps.google.com/?q=PlacerCounty+CA |
| | Orange County | CA | 06059 | Anaheim-Santa Ana-Irvine,
CA 11244 | Los Angeles-Long
Beach-Anaheim, CA 31080 | Los Angeles-Long Beach,
CA 348 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=OrangeCounty+CA |
| | Nevada County | CA | 06057 | | Truckee-Grass Valley, CA 46020 | Sacramento-Roseville, CA 472 | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=NevadaCounty+CA |