30 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Millcreek | Salt Lake County | 64,352 |
| Murray | Salt Lake County | 50,891 |
| Midvale | Salt Lake County | 36,244 |
| Magna | Salt Lake County | 31,910 |
| Mapleton | Utah County | 15,649 |
| Midway | Wasatch County | 6,066 |
| Moab | Grand County | 5,210 |
| Morgan | Morgan County | 4,652 |
| Maeser | Uintah County | 4,257 |
| Mount Pleasant | Sanpete County | 4,003 |
| Mountain Green | Morgan County | 3,980 |
| Manti | Sanpete County | 3,778 |
| Monroe | Sevier County | 2,759 |
| Millville | Cache County | 2,531 |
| Marriott-Slaterville | Weber County | 2,260 |
| Mona | Juab County | 1,996 |
| Monticello | San Juan County | 1,739 |
| Moroni | Sanpete County | 1,703 |
| Milford | Beaver County | 1,441 |
| Mantua | Box Elder County | 1,414 |
| Mendon | Cache County | 1,340 |
| Minersville | Beaver County | 899 |
| Mayfield | Sanpete County | 614 |
| Marion | Summit County | 600 |
| Myton | Duchesne County | 572 |
| Marysvale | Piute County | 501 |
| Meadow | Millard County | 352 |
| Manila | Daggett County | 322 |
| Montezuma Creek | San Juan County | 256 |
| Mexican Hat | San Juan County | 27 |