| Trivoli Township, IL (Township) |
| Trommald, MN (City) |
| Trondhjem, MN (Township) |
| Trophy Club, TX (Town) |
| Tropic, UT (City) |
| Trosky, MN (City) |
| Trotter, MO (Township) |
| Trotwood, OH (City) |
| Troup, TX (City) |
| Troup County, GA (County) |
| Troupsburg, NY (Town) |
| Trousdale County, TN (County) |
| Trout Creek Community Development District, FL (CDD) |
| Trout Lake, MN (Township) |
| Trout Lake Township, MI (Township) |
