| | | Lycoming County | PA | 42081 | | Williamsport, PA 48700 | Williamsport-Lock Haven,
PA 558 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=LycomingCounty+PA |
| | | McKean County | PA | 42083 | | Bradford, PA 14620 | | Central | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=McKeanCounty+PA |
| | | Mercer County | PA | 42085 | | Youngstown-Warren-Boardman,
OH-PA 49660 | Youngstown-Warren, OH-PA 566 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=MercerCounty+PA |
| | | Mifflin County | PA | 42087 | | Lewistown, PA 30380 | | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=MifflinCounty+PA |
| | | Monroe County | PA | 42089 | | East Stroudsburg, PA 20700 | New York-Newark,
NY-NJ-CT-PA 408 | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=MonroeCounty+PA |
| | | Montgomery County | PA | 42091 | Montgomery County-Bucks
County-Chester County, PA 33874 | 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=MontgomeryCounty+PA |
| | | Montour County | PA | 42093 | | Bloomsburg-Berwick, PA 14100 | Bloomsburg-Berwick-Sunbury,
PA 146 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=MontourCounty+PA |
| | | Northampton County | PA | 42095 | | Allentown-Bethlehem-Easton,
PA-NJ 10900 | New York-Newark,
NY-NJ-CT-PA 408 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=NorthamptonCounty+PA |
| | | Northumberland County | PA | 42097 | | Sunbury, PA 44980 | Bloomsburg-Berwick-Sunbury,
PA 146 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=NorthumberlandCounty+PA |
| | | Perry County | PA | 42099 | | Harrisburg-Carlisle, PA 25420 | Harrisburg-York-Lebanon,
PA 276 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=PerryCounty+PA |
