| Trail, SD (Township) |
| Trail, MN (City) |
| Trail Creek, IN (Town) |
| Trail Creek, MO (Township) |
| Traill County, ND (County) |
| Trails at Monterey Community Development District, FL (CDD) |
| Trails Community Development District, FL (CDD) |
| Trainer, PA (Borough) |
| Transit, MN (Township) |
| Transylvania County, NC (County) |
| Trappe, MD (Town) |
| Trappe, PA (Borough) |
| Traskwood, AR (City) |
| Travelers Rest, SC (City) |
| Traverse, MN (Township) |
