30 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Millcreek | Salt Lake County | 61,228 |
| Murray | Salt Lake County | 48,911 |
| Midvale | Salt Lake County | 35,191 |
| Magna | Salt Lake County | 30,637 |
| Mapleton | Utah County | 15,242 |
| Midway | Wasatch County | 6,094 |
| Moab | Grand County | 5,127 |
| Morgan | Morgan County | 4,824 |
| Maeser | Uintah County | 4,257 |
| Mount Pleasant | Sanpete County | 4,008 |
| Mountain Green | Morgan County | 3,980 |
| Manti | Sanpete County | 3,777 |
| Monroe | Sevier County | 2,797 |
| Millville | Cache County | 2,545 |
| Marriott-Slaterville | Weber County | 2,273 |
| Mona | Juab County | 2,057 |
| Moroni | Sanpete County | 1,702 |
| Monticello | San Juan County | 1,669 |
| Mantua | Box Elder County | 1,435 |
| Milford | Beaver County | 1,402 |
| Mendon | Cache County | 1,330 |
| Minersville | Beaver County | 871 |
| Mayfield | Sanpete County | 617 |
| Marion | Summit County | 600 |
| Myton | Duchesne County | 564 |
| Marysvale | Piute County | 517 |
| Meadow | Millard County | 356 |
| Manila | Daggett County | 343 |
| Montezuma Creek | San Juan County | 256 |
| Mexican Hat | San Juan County | 27 |