- Chessy Copper mines, Chessy, Rhône-Alpes, France 1
- Chester County, Pennsylvania1
- Chester County, Pennsylvania, United States1
- Chester, Chester County, Pennsylvania, United States1
- Chicago, Cok County, Illinois, United States1
- Chiriqui Lagoon, Panama, Central America1
- Christian Creek, Augusta County, Virginia, United States1
- Claiborne, Monroe County, Alabama, United States1
- Clarksville, Habersham County, Georgia, United States1
- Clear Creek, Morgan County, Tennessee, United States1
- 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