| | | | Union County | NJ | 34039 | Newark, NJ-PA 35084 | New York-Newark-Jersey
City, NY-NJ 35620 | New York-Newark,
NY-NJ-CT-PA 408 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=UnionCounty+NJ |
| | | | 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 |
| | | | Delaware County | PA | 42045 | Philadelphia, PA 37964 | Philadelphia-Camden-Wilmington,
PA-NJ-DE-MD 37980 | Philadelphia-Reading-Camden,
PA-NJ-DE-MD 428 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=DelawareCounty+PA |
| | | | Philadelphia County | PA | 42101 | Philadelphia, PA 37964 | Philadelphia-Camden-Wilmington,
PA-NJ-DE-MD 37980 | Philadelphia-Reading-Camden,
PA-NJ-DE-MD 428 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=PhiladelphiaCounty+PA |
| | | | Rockingham County | NH | 33015 | Rockingham
County-Strafford County,
NH 40484 | Boston-Cambridge-Newton,
MA-NH 14460 | Boston-Worcester-Providence,
MA-RI-NH-CT 148 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=RockinghamCounty+NH |
| | | | Strafford County | NH | 33017 | Rockingham
County-Strafford County,
NH 40484 | Boston-Cambridge-Newton,
MA-NH 14460 | Boston-Worcester-Providence,
MA-RI-NH-CT 148 | Outlying | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=StraffordCounty+NH |
| | | | 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 |
| | | | 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 |
