- Cedar Island
- Cedar Island Marsh
- Cinder Island
- Croyle Island
- Cuba Island
- Carnegie Hill
- Colonial Park Houses
- Cayuga Island
- Cayuga Village Mobile Home Park
- Collingwood Estates
- Comstock Corners
- Coolidge Beach
- Coomer
- Countryside Homes Mobile Home Park
- County Line
- Cagwin Corners
- Camelot Village
- Camroden
- Canterbury Hill
- Careys Corners
- Carmichael Hill
- Chuckery Corners
- Churchville
- Colemans Mills
- Collins Mobile Home Park
- Colonial Park
- Conger Corners
- Coonrod
- Cardiff
- Cards Corners