| Clay, KY (City) |
| Clay, ND (Township) |
| Clay, AL (City) |
| Clay, NY (Town) |
| Clay, MN (Township) |
| Clay, PA (Township) |
| Clay, PA (Township) |
| Clay, PA (Township) |
| Clay Banks, WI (Town) |
| Clay Center, OH (Village) |
| Clay Center, NE (City) |
| Clay Center, KS (City) |
| Clay City, IN (Town) |
| Clay City, KY (City) |
| Clay City, IL (Village) |
