| Travis County, TX (County) |
| Treasure County, MT (County) |
| Treasure Island , FL (City) |
| Tredyffrin Township, PA (Township) |
| Tree Island Estates Community Development District, FL (CDD) |
| Treece, KS (City) |
| Treeline Preserve Community Development District, FL (CDD) |
| Trego County, KS (County) |
| Trego Town, WI (Town) |
| Trelipe, MN (Township) |
| Tremont, IL (Village) |
| Tremont, PA (Borough) |
| Tremont, ME (Town) |
| Tremont, MS (Town) |
| Tremont City, OH (Village) |
