- Coyote Islands (historical)
- Calispell
- Cooks Island
- Caledonia
- Canterwood
- Canyon Glen Mobile Home Park
- Cascade Green Mobile Home Park
- Cascade Junction
- Cedar Crest Mobile Home Park
- Cherrywood Mobile Home Manor Sewage Treatment Plant
- Cherrywood Mobile Manor
- Clay City
- Clover Creek Trailer Court
- Coach Country Corral Mobile Home Park
- Cors Island
- Cottonwood Mobile Home Park
- Country Aire Manor Mobile Home Park
- Country Dale Mobile Home Park
- Country Green Estates Mobile Home Park
- Country Lane Mobile Home Park
- Country Mobile Estates
- Country Road Estates Mobile Home Park
- Country West Mobile Home Park
- Crocker
- Crystal Spring Mobile Home Estates
- Cutts Island
- Camas
- Castle Rock
- Colton
- Conway