12 cities
| City | County | 2026 Pop. ↓ |
|---|---|---|
| Taylorsville | Salt Lake County | 56,538 |
| Tooele | Tooele County | 43,360 |
| Tremonton | Box Elder County | 14,031 |
| Toquerville | Washington County | 2,050 |
| Thatcher | Box Elder County | 1,164 |
| Timber Lakes | Wasatch County | 1,049 |
| Trenton | Cache County | 552 |
| Tropic | Garfield County | 514 |
| Teasdale | Wayne County | 389 |
| Torrey | Wayne County | 269 |
| Tabiona | Duchesne County | 159 |
| Tselakai Dezza | San Juan County | 88 |