| Carnegie, Allegheny |
15106 |
| Carpolis, Allegheny |
15108 |
| Carson, Allegheny |
15203 |
| Castle Shannon, Allegheny |
15234 |
| Cedarhurst, Allegheny |
15243 |
| Cheswick, Allegheny |
15024 |
| Churchill, Allegheny |
15221 |
| Clairton, Allegheny |
15025 |
| Clinton, Allegheny |
15026 |
| Collier, Allegheny |
15106 |
| Coraopolis, Allegheny |
15108 |
| Corliss, Allegheny |
15204 |
| Coropolis, Allegheny |
15108 |
| Coulters, Allegheny |
15028 |
| Crafton, Allegheny |
15205 |
| Cranberry Township, Allegheny |
16066 |
| Creighton, Allegheny |
15030 |
| Crescent, Allegheny |
15046 |
| Cuddy, Allegheny |
15031 |
| Curtisville, Allegheny |
15032 |
| Dormont, Allegheny |
15216 |
| Dravosburg, Allegheny |
15034 |
| Duquesne, Allegheny |
15110 |
| East Liberty, Allegheny |
15206 |
| East McKeesport, Allegheny |
15035 |
| East Pittsburgh, Allegheny |
15112 |