| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ibapah | city | Utah | United States | 40.04 | -113.99 | 5255 | |
| Ibex | city | Utah | United States | 38.88 | -113.44 | 5452 | |
| Idas Acres | city | Utah | United States | 40.54 | -111.85 | 5029 | |
| Idlewild Townsite | city | Utah | United States | 41.25 | -111.86 | 6709 | |
| Iliff College Hill | city | Utah | United States | 41.21 | -111.95 | 4570 | |
| Independence | city | Utah | United States | 40.30 | -111.26 | 8389 | |
| Independence | city | Utah | United States | 40.25 | -109.94 | 5029 | |
| Indian Hills | city | Utah | United States | 41.32 | -111.95 | 5029 | |
| Indian Oaks | city | Utah | United States | 41.06 | -111.94 | 4419 | |
| Indian Springs Estates | city | Utah | United States | 40.85 | -111.87 | 5173 | |
| Indian Valley Estates | city | Utah | United States | 41.17 | -111.94 | 5029 | |
| Indian Village | city | Utah | United States | 40.65 | -112.01 | 5029 | |
| Indian Village | city | Utah | United States | 40.68 | -111.98 | 4327 | |
| Indian Village | city | Utah | United States | 37.67 | -109.64 | 5869 | |
| Indian Village South | city | Utah | United States | 40.66 | -111.97 | 4471 | |
| Indian Wells | city | Utah | United States | 40.66 | -111.87 | 4248 | |
| Indianola | city | Utah | United States | 39.80 | -111.49 | 5990 | |
| Indians Hills | city | Utah | United States | 41.10 | -111.93 | 5029 | |
| Ingersoll Addition | city | Utah | United States | 40.82 | -111.97 | 4209 | |
| Interlaken | city | Utah | United States | 40.54 | -111.47 | 5869 | |
| International Gardens | city | Utah | United States | 40.65 | -111.84 | 4445 | |
| Interwest Condominium Project Phase A | city | Utah | United States | 41.21 | -112.00 | 4343 | |
| Ioka | city | Utah | United States | 40.26 | -110.11 | 5400 | |
| Iosepa (historical) | city | Utah | United States | 40.54 | -112.74 | 4435 | |
| Irene | city | Utah | United States | 41.33 | -112.00 | 4491 | |
| Irfred Park | city | Utah | United States | 40.85 | -111.90 | 4393 | |
| Iron Basin | city | Utah | United States | 38.93 | -112.96 | 5869 | |
| Iron Mountain | city | Utah | United States | 37.62 | -113.39 | 6709 | |
| Iron Springs | city | Utah | United States | 37.75 | -113.23 | 5419 | |
| Ironton | city | Utah | United States | 40.20 | -111.62 | 5029 | |
| Ironwood | city | Utah | United States | 41.16 | -111.95 | 5029 | |
| Irving Park Addition | city | Utah | United States | 40.76 | -111.94 | 4265 | |
| Island View | city | Utah | United States | 40.90 | -111.87 | 4537 | |
| Island View Acres | city | Utah | United States | 41.04 | -111.98 | 4284 | |
| Ivins | city | Utah | United States | 37.17 | -113.68 | 3349 |