| Clyman, WI (Town) |
| Clyman, WI (Village) |
| Clymer, PA (Township) |
| Clymer, PA (Borough) |
| Clymer, NY (Town) |
| Coachella, CA (City) |
| Coahoma, TX (Town) |
| Coahoma, MS (Town) |
| Coahoma County, MS (County) |
| Coal, PA (Township) |
| Coal, MO (Township) |
| Coal Center, PA (Borough) |
| Coal City, IL (Village) |
| Coal County, OK (County) |
| Coal Creek, CO (Town) |
