| | Apollo borough | 4200502720 | PA | 4202720 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Applewold borough | 4200502752 | PA | 4202752 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Atwood borough | 4200503480 | PA | 4203480 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Dayton borough | 4200518400 | PA | 4218400 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Elderton borough | 4200522832 | PA | 4222832 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Ford City borough | 4200526512 | PA | 4226512 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Ford Cliff borough | 4200526520 | PA | 4226520 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Freeport borough | 4200527784 | PA | 4227784 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Kiskimere CDP | 4200539960 | PA | 4239960 | Census Designated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Kittanning borough | 4200540040 | PA | 4240040 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |