- Cadgewith Farms Mobile Home Park
- Cadillac
- Cadillac Leisure Mobile Home Community
- Cadmus
- Cady
- Caffey
- Caffey Corner
- Calcite
- Calderwood
- Caledonia
- Calf Island
- California
- Calumet
- Calvin Center
- Cambria
- Cambridge Junction
- Camden
- Camelot Villa Mobile Home Community
- Camelot Village Mobile Home Park
- Camp Dejacket
- Camp Lu Lay Lea
- Campbell
- Campbell Corners
- Campbells Corner
- Campbells Corners
- Canada Corners
- Canada Creek Ranch
- Canada Shores
- Canadian Lakes
- Canandaigua