| Thornapple, WI (Town) |
| Thornapple Township, MI (Township) |
| Thornburg, PA (Borough) |
| Thornburg, IA (City) |
| Thornbury, PA (Township) |
| Thornbury, PA (Township) |
| Thorncreek, IN (Township) |
| Thorndale, TX (City) |
| Thorndike, ME (Town) |
| Thorne Bay, AK (City) |
| Thornhill, KY (City) |
| Thornhurst, PA (Township) |
| Thornton, CO (City) |
| Thornton, TX (Town) |
| Thornton, NE (Township) |
