| | Adamsburg borough | 4212900332 | PA | 4200332 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Arnold city | 4212903088 | PA | 4203088 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Arona borough | 4212903120 | PA | 4203120 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Avonmore borough | 4212903688 | PA | 4203688 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Bolivar borough | 4212907480 | PA | 4207480 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Bradenville CDP | 4212908024 | PA | 4208024 | Census Designated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Calumet CDP | 4212910832 | PA | 4210832 | Census Designated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Collinsburg CDP | 4212915248 | PA | 4215248 | Census Designated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Crabtree CDP | 4212916816 | PA | 4216816 | Census Designated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |
| | Delmont borough | 4212918768 | PA | 4218768 | Incorporated Place | Pittsburgh, PA 38300 | Pittsburgh-New
Castle-Weirton, PA-OH-WV 430 | | |