| | | Elk County | PA | 42047 | | St. Marys, PA 41260 | | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=ElkCounty+PA |
| | | Erie County | PA | 42049 | | Erie, PA 21500 | Erie-Meadville, PA 240 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=ErieCounty+PA |
| | | Fayette County | PA | 42051 | | Pittsburgh, PA 38300 | Pittsburgh-Weirton-Steubenville,
PA-OH-WV 430 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=FayetteCounty+PA |
| | | Forest County | PA | 42053 | | | | | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=ForestCounty+PA |
| | | Franklin County | PA | 42055 | | Chambersburg, PA 16540 | Washington-Baltimore-Arlington,
DC-MD-VA-WV-PA 548 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=FranklinCounty+PA |
| | | Fulton County | PA | 42057 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=FultonCounty+PA |
| | | Greene County | PA | 42059 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=GreeneCounty+PA |
| | | Huntingdon County | PA | 42061 | | Huntingdon, PA 26500 | Altoona-Huntingdon, PA 107 | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=HuntingdonCounty+PA |
| | | Indiana County | PA | 42063 | | Indiana, PA 26860 | Pittsburgh-Weirton-Steubenville,
PA-OH-WV 430 | Central | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=IndianaCounty+PA |
| | | Jefferson County | PA | 42065 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=JeffersonCounty+PA |
