| Throop, PA (Borough) |
| Thunder Lake, MN (Township) |
| Thunderbolt, GA (Town) |
| Thurman, IA (City) |
| Thurman, NY (Town) |
| Thurmond, WV (Town) |
| Thurmont, MD (Town) |
| Thurston, NY (Town) |
| Thurston, OH (Village) |
| Thurston, NE (Village) |
| Thurston County, NE (County) |
| Thurston County, WA (County) |
| Tiber, ND (Township) |
| Tiburon, CA (Town) |
| Tickfaw, LA (Village) |
