United States of America populated cities
- Clovis
- Clyde Park
- Coal Center
- Cobb Island
- Cocoa Beach
- Coeur d'Alene, Idaho
- Coffee Springs
- Cokeville, Wyoming
- Cold Spring Harbor
- College Place
- College Springs
- College Station
- Colonial Beach
- Colorado Springs, Colorado
- Columbia
- Columbia
- Columbia
- Columbus
- Columbus Grove
- Columbus Junction
- Commerce Charter Township
- Commerce City
- Commercial Point
- Comstock Park
- Concord
- Conway Springs
- Cooke City
- Cooper Landing
- Copper Center
- Copper Harbor
- Copperhill
- Cornwall-on-Hudson
- Corona
- Corpus Christi, Texas
- Costa Mesa
- Cotton Plant
- Cottonwood Falls
- Coulee City
- Council Bluffs, Iowa
- Council Grove
- Covington, Kentucky
- Cranberry Isles
- Crescent Mills
- Crest Hill
- Cross Anchor
- Cross City
- Croton-on-Hudson
- Crow Agency
- Crowheart, Wyoming
- Crown King