- Clemson, Anderson County, Pickens County, South Carolina, United States1
- Clinton, Laurens County, South Carolina, United States1
- Cohasset Beach, Norfolk County, Massachusetts, United States1
- Cokesbury, Greenwood County, South Carolina, United States1
- Columbia, Richland County, South Carolina, United states1
- Columbia, South Carolina1
- Columbus, Lowndes County, Mississippi, United States1
- Columbus, Muscogee County, Georgia, United States1
- Congaree, Richland County, South Carolina, United States1
- Connecticut, United States1
- Cooper River, South Carolina, United States1
- Coos Bay, Coos County, Oregon, United States1
- Copiapo, Atacama, Chile1
- Copper Mine Hill, Cumberland, Providence County, Rhode Island, United States1
- Cornwall, Lebanon (Dauphin) County, Pennsylvania, United States1
- Cornwall, Lebanon County, Pennsylvania, United States1
- Cumberland County, Pennsylvania1
- Cumberland, Allegany County, Maryland, United States1
- Darlington District, Darlington, Darlington County, South Carolina, United States1
- Darlington, Darlington County, South Carolina, United States1