- Cory
- Cotopaxi
- Cottonwood
- Cottonwood
- Cottonwood
- Country Acres
- Country West
- Coventry
- Cowdrey
- Craig
- Craig Place
- Craig South Highlands
- Crawford
- Creede
- Crescent
- Crescent Village
- Crested Butte
- Crestone
- Crestview
- Crestview Villa
- Cripple Creek
- Crisman
- Crook
- Crossons
- Crowley
- Crystola
- Cuchara
- Cuchara Junction
- Cuerna Verde Park
- Culp