| | | Lassen County | CA | 06035 | | Susanville, CA 45000 | | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=LassenCounty+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 |
| | | Modoc County | CA | 06049 | | | | | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=ModocCounty+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 |
| | | Plumas County | CA | 06063 | | | | | nonmetro county (rural) | recreation | https://maps.google.com/?q=PlumasCounty+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 Luis Obispo County | CA | 06079 | | San Luis Obispo-Paso
Robles, CA 42020 | | Central | metro county (urban) | recreation | https://maps.google.com/?q=SanLuisObispoCounty+CA |
| | | Santa Barbara County | CA | 06083 | | Santa Maria-Santa
Barbara, CA 42200 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=SantaBarbaraCounty+CA |
