| | Elk County | PA | 42047 | | St. Marys, PA 41260 | | Central | not in metro; pop > 5K
< 20k;
non-metro-adjacent | manufacturing-dependent | https://maps.google.com/?q=ElkCounty+PA |
| | Centre County | PA | 42027 | | State College, PA 44300 | State College-DuBois, PA 524 | Central | in metro of < 250k | federal/state
government-dependent | https://maps.google.com/?q=CentreCounty+PA |
| | Montour County | PA | 42093 | | Sunbury, PA 44980 | Bloomsburg-Berwick-Sunbury,
PA 146 | Outlying | not in metro; pop > 5k
< 20k; metro-adjacent | nonspecialized | https://maps.google.com/?q=MontourCounty+PA |
| | Northumberland County | PA | 42097 | | Sunbury, PA 44980 | Bloomsburg-Berwick-Sunbury,
PA 146 | Central | not in metro; pop
>20k; metro-adjacent | nonspecialized | https://maps.google.com/?q=NorthumberlandCounty+PA |
| | Warren County | PA | 42123 | | Warren, PA 47620 | | Central | not in metro; pop > 5k
< 20k; metro-adjacent | nonspecialized | https://maps.google.com/?q=WarrenCounty+PA |
| | Lycoming County | PA | 42081 | | Williamsport, PA 48700 | Williamsport-Lock Haven,
PA 558 | Central | in metro of < 250k | nonspecialized | https://maps.google.com/?q=LycomingCounty+PA |
| | York County | PA | 42133 | | York-Hanover, PA 49620 | Harrisburg-York-Lebanon,
PA 276 | Central | in metro of > 250k
< 1m | nonspecialized | https://maps.google.com/?q=YorkCounty+PA |