- Cabin Creek
- Comanche
- Cherry Creek
- Comanche Creek
- Carrizo Springs
- Centerville
- Cleora
- Cornelia
- Calhan
- Canfield
- Caribou City
- Copperdale
- Crescent Village
- Crisman
- Campion
- Cañon City
- Carriage Club
- Castle Pines
- Castle Rock
- Cedaredge
- Centennial
- Cherry Hills Village
- Cheyenne Wells
- Cañon
- Cumbres
- Cimarron Hills
- Cold Spring
- Chipeta
- Coburn
- Colby