- Cashtown
- Cashtown-McKnightstown
- Cedar Ridge
- Centennial
- Center Mills
- Cross Keys
- Camden
- Carnot-Moon
- Carrick
- Center
- Central Highlands
- Champion
- Cherry City
- Churchill Valley
- Clifton
- Coal Valley
- Cochrans Mill
- Compton
- Coraopolis Heights
- Cork
- Corliss
- Coverdale
- Crescent Hills
- Cuddy
- Curry
- Center Hill
- Center Valley
- Charlestown
- Cherry Lane
- Climax