- Camp Oconto
- Campania
- Campbells Corners
- Campbellton
- Campbelltown
- Candyville
- Canning
- Cannington
- Canonto
- Cape Chin
- Cape Chin North
- Cape Chin South
- Capreol
- Caradoc
- Cardiff
- Cardinal Heights
- Cargill
- Caribou Island
- Carleton Heights
- Carleton Square
- Carley
- Carling
- Carlingford
- Carlington
- Carlingwood
- Carlow
- Carlsbad Springs
- Carlyon
- Carmel
- Carmel