- Callensburg
- Callery
- Callimont
- Cambridge Springs
- Camp Hill
- Campbelltown
- Canadohta Lake
- Canonsburg
- Carbondale
- Carmichaels
- Carnegie
- Carroll Valley
- Carrolltown
- Cassandra
- Casselman
- Castanea
- Castle Shannon
- Catasauqua
- Catawissa
- Central City
- Centre Hill
- Chalfant
- Chalfont
- Chambersburg
- Cherry Tree
- Chest Springs
- Chester Heights
- Chester Hill
- Chesterbrook
- Cheswick