| | | Calaveras County | CA | 06009 | | | | | nonmetro county (rural) | recreation | https://maps.google.com/?q=CalaverasCounty+CA |
| | | El Dorado County | CA | 06017 | | Sacramento-Roseville-Folsom,
CA 40900 | Sacramento-Roseville, CA 472 | Central | metro county (urban) | recreation | https://maps.google.com/?q=ElDoradoCounty+CA |
| | | Inyo County | CA | 06027 | | Bishop, CA 13860 | | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=InyoCounty+CA |
| | | 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 |
| | | Mariposa County | CA | 06043 | | | | | nonmetro county (rural) | recreation | https://maps.google.com/?q=MariposaCounty+CA |
| | | Mendocino County | CA | 06045 | | Ukiah, CA 46380 | | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=MendocinoCounty+CA |
| | | Mono County | CA | 06051 | | | | | nonmetro county (rural) | recreation | https://maps.google.com/?q=MonoCounty+CA |
| | | Monterey County | CA | 06053 | | Salinas, CA 41500 | | Central | metro county (urban) | recreation | https://maps.google.com/?q=MontereyCounty+CA |
| | | Napa County | CA | 06055 | | Napa, CA 34900 | San Jose-San
Francisco-Oakland, CA 488 | Central | metro county (urban) | recreation | https://maps.google.com/?q=NapaCounty+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 |
