- Calflax
- Calgro
- Calico
- Calico
- Caliente
- California Hot Springs
- California Pines
- California Valley
- Calimesa Mobile Home Ranch
- Calla
- Callahan
- Callender
- Calneva
- Calpack
- Calpella
- Calpine
- Calvada Springs
- Calzona
- Camal Rock
- Camanche North Shore
- Camanche Village
- Cambria Pines
- Cambria Rock
- Cambridge Oaks
- Camden
- Camel Rock
- Camelot Hills
- Cameron
- Cameron
- Cameron Airpark Estates