| | Aaronsburg CDP | 4212500104 | PA | 4200104 | Census Designated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Allenport borough | 4212500988 | PA | 4200988 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Atlasburg CDP | 4212503472 | PA | 4203472 | Census Designated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Avella CDP | 4212503616 | PA | 4203616 | Census Designated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Baidland CDP | 4212503768 | PA | 4203768 | Census Designated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Beallsville borough | 4212504568 | PA | 4204568 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Bentleyville borough | 4212505672 | PA | 4205672 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Bulger CDP | 4212510128 | PA | 4210128 | Census Designated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Burgettstown borough | 4212510224 | PA | 4210224 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | California borough | 4212510768 | PA | 4210768 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |