30 cities
| City | County | 2026 Pop. ↓ |
|---|---|---|
| Millcreek | Salt Lake County | 64,487 |
| Murray | Salt Lake County | 50,965 |
| Midvale | Salt Lake County | 36,270 |
| Magna | Salt Lake County | 32,440 |
| Mapleton | Utah County | 16,486 |
| Midway | Wasatch County | 6,069 |
| Moab | Grand County | 5,178 |
| Morgan | Morgan County | 4,751 |
| Maeser | Uintah County | 4,748 |
| Mount Pleasant | Sanpete County | 4,071 |
| Mountain Green | Morgan County | 4,069 |
| Manti | Sanpete County | 3,845 |
| Monroe | Sevier County | 2,808 |
| Millville | Cache County | 2,573 |
| Marriott-Slaterville | Weber County | 2,282 |
| Mona | Juab County | 2,043 |
| Moroni | Sanpete County | 1,733 |
| Monticello | San Juan County | 1,722 |
| Mantua | Box Elder County | 1,475 |
| Milford | Beaver County | 1,444 |
| Mendon | Cache County | 1,341 |
| Minersville | Beaver County | 917 |
| Marion | Summit County | 696 |
| Mayfield | Sanpete County | 625 |
| Myton | Duchesne County | 574 |
| Marysvale | Piute County | 529 |
| Meadow | Millard County | 356 |
| Manila | Daggett County | 324 |
| Montezuma Creek | San Juan County | 238 |
| Mexican Hat | San Juan County | 22 |