| | Berkeley County | WV | 54003 | | Hagerstown-Martinsburg,
MD-WV 25180 | Washington-Baltimore-Arlington,
DC-MD-VA-WV-PA 548 | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=BerkeleyCounty+WV |
| | Morgan County | WV | 54065 | | Hagerstown-Martinsburg,
MD-WV 25180 | Washington-Baltimore-Arlington,
DC-MD-VA-WV-PA 548 | Outlying | nonmetro county (rural) | recreation | https://maps.google.com/?q=MorganCounty+WV |
| | Washington County | MD | 24043 | | Hagerstown-Martinsburg,
MD-WV 25180 | Washington-Baltimore-Arlington,
DC-MD-VA-WV-PA 548 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=WashingtonCounty+MD |