| | | Yolo County | CA | 06113 | | Sacramento-Roseville-Folsom,
CA 40900 | Sacramento-Roseville, CA 472 | Outlying | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=YoloCounty+CA |
| | | Yuba County | CA | 06115 | | Yuba City, CA 49700 | Sacramento-Roseville, CA 472 | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=YubaCounty+CA |
| | | Santa Clara County | CA | 06085 | | San Jose-Sunnyvale-Santa
Clara, CA 41940 | San Jose-San
Francisco-Oakland, CA 488 | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=SantaClaraCounty+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 |
| | | Butte County | CA | 06007 | | Chico, CA 17020 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=ButteCounty+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 |
| | | Fresno County | CA | 06019 | | Fresno, CA 23420 | Fresno-Hanford-Corcoran,
CA 260 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=FresnoCounty+CA |
| | | Humboldt County | CA | 06023 | | Eureka-Arcata, CA 21700 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=HumboldtCounty+CA |
| | | Kern County | CA | 06029 | | Bakersfield-Delano, CA 12540 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=KernCounty+CA |
| | | Lake County | CA | 06033 | | Clearlake, CA 17340 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=LakeCounty+CA |
