12 cities
| City | County | 2026 Pop. ↓ |
|---|---|---|
| American Fork | Utah County | 45,167 |
| Alpine | Utah County | 10,687 |
| Aurora | Sevier County | 1,080 |
| Apple Valley | Washington County | 965 |
| Annabella | Sevier County | 908 |
| Amalga | Cache County | 532 |
| Avon | Cache County | 529 |
| Aneth | San Juan County | 283 |
| Altamont | Duchesne County | 256 |
| Alta | Salt Lake County | 228 |
| Antimony | Garfield County | 125 |
| Alton | Kane County | 115 |