- Camarillo, California
- Cambria, California
- Cambridge, Massachusetts
- Cambridge, Ohio
- Camden-Wyoming, Delaware
- Camden, New Jersey
- Camden, South Carolina
- Camdenton, Missouri
- Cameron, Texas
- Cancun, Mexico
- Canton, Georgia
- Canton, Massachusetts
- Canton, Mississippi
- Canyon, Texas
- Cape Cod, Massachusetts
- Cape Fear, North Carolina
- Cape May, New Jersey
- Capitol Heights, Maryland
- Caribbean Sea
- Carlinville, Illinois
- Carlsbad, California
- Carmel, Indiana
- Carnesville, Georgia
- Carolina Beach, North Carolina
- Carrollton, Georgia
- Carrollton, Texas
- Carson City, Nevada
- Carthage, Missouri
- Cary, North Carolina
- Castaic, California
- Castle Rock, Colorado
- Cave Springs, Arkansas
- Cazenovia, New York
- Cedar Falls, Iowa
- Cedar Hill, Texas
- Cedar Park, Texas
- Cedar Rapids, Iowa
- Centennial, Ohio
- Centerville, Georgia
- Centerville, Ohio
