| City | County | 2026 Pop. ↓ |
|---|---|---|
| American Fork | Utah County | 42,907 |
| Alpine | Utah County | 10,505 |
| Aurora | Sevier County | 1,076 |
| Apple Valley | Washington County | 969 |
| Annabella | Sevier County | 910 |
| Amalga | Cache County | 531 |
| Avon | Cache County | 529 |
| Aneth | San Juan County | 283 |
| Altamont | Duchesne County | 274 |
| Alta | Salt Lake County | 227 |
| Antimony | Garfield County | 124 |
| Alton | Kane County | 119 |