- Cleveland, Georgia
- Cleveland, Mississippi
- Cleveland, Ohio
- Cleveland, Tennessee
- Cleves, Ohio
- Clewiston, Florida
- Clifton, Virginia
- Clovin, New Mexico
- Cochran, Georgia
- Cocoa Beach, Florida
- Cody, Wyoming
- Coeur d'Alene, Idaho
- Colchester, Vermont
- Colcord, Oklahoma
- College Grove, Tennessee
- College Park, Georgia
- College Park, Maryland
- College Park, Pennsylvania
- College Station, Texas
- Collegeville, Minnesota
- Colleyville, Texas
- Collierville, Tennessee
- Collinsville, Oklahoma
- Colonial Heights, Virginia
- Colorado City, Texas
- Colorado Springs, Colorado
- Columbia, Maryland
- Columbia, Missouri
- Columbia, South Carolina
- Columbia, Tennessee
- Columbus, Georgia
- Columbus, Indiana
- Columbus, Nebraska
- Columbus, Ohio
- Commack, New York
- Commerce, Georgia
- Commerce, Texas
- Concord, California
- Concord, New Hampshire
- Concord, North Carolina
