| | | Marin County | CA | 06041 | San Rafael, CA 42034 | San
Francisco-Oakland-Fremont,
CA 41860 | San Jose-San
Francisco-Oakland, CA 488 | Central | metro county (urban) | recreation | https://maps.google.com/?q=MarinCounty+CA |
| | | 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 Mateo County | CA | 06081 | 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=SanMateoCounty+CA |
| | | Alameda County | CA | 06001 | Oakland-Fremont-Berkeley,
CA 36084 | San
Francisco-Oakland-Fremont,
CA 41860 | San Jose-San
Francisco-Oakland, CA 488 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=AlamedaCounty+CA |
| | | Contra Costa County | CA | 06013 | Oakland-Fremont-Berkeley,
CA 36084 | San
Francisco-Oakland-Fremont,
CA 41860 | San Jose-San
Francisco-Oakland, CA 488 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=ContraCostaCounty+CA |
| | | Los Angeles County | CA | 06037 | Los Angeles-Long
Beach-Glendale, CA 31084 | Los Angeles-Long
Beach-Anaheim, CA 31080 | Los Angeles-Long Beach,
CA 348 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=LosAngelesCounty+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 |
| | | Alpine County | CA | 06003 | | Gardnerville Ranchos, NV 23820 | Reno-Carson
City-Gardnerville
Ranchos, NV-CA 456 | Outlying | nonmetro county (rural) | recreation | https://maps.google.com/?q=AlpineCounty+CA |
| | | Amador County | CA | 06005 | | | | | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=AmadorCounty+CA |
| | | Butte County | CA | 06007 | | Chico, CA 17020 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=ButteCounty+CA |
