| | Chester County | PA | 42029 | 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=ChesterCounty+PA |
| | 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 |
| | 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 |
| | 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 |
| | Allegheny County | PA | 42003 | | Pittsburgh, PA 38300 | Pittsburgh-Weirton-Steubenville,
PA-OH-WV 430 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=AlleghenyCounty+PA |
| | Armstrong County | PA | 42005 | | Pittsburgh, PA 38300 | Pittsburgh-Weirton-Steubenville,
PA-OH-WV 430 | Outlying | metro county (urban) | mining-dependent | https://maps.google.com/?q=ArmstrongCounty+PA |
| | Beaver County | PA | 42007 | | Pittsburgh, PA 38300 | Pittsburgh-Weirton-Steubenville,
PA-OH-WV 430 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=BeaverCounty+PA |
| | Butler County | PA | 42019 | | Pittsburgh, PA 38300 | Pittsburgh-Weirton-Steubenville,
PA-OH-WV 430 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=ButlerCounty+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 |
| | Lawrence County | PA | 42073 | | Pittsburgh, PA 38300 | Pittsburgh-Weirton-Steubenville,
PA-OH-WV 430 | Outlying | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=LawrenceCounty+Pennsylvania |