| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Siders Estates | city | Utah | United States | 40.84 | -111.90 | 5029 | |
| Sierra Dawn Condominium | city | Utah | United States | 40.67 | -111.83 | 4507 | |
| Sierra Grande | city | Utah | United States | 40.64 | -111.97 | 4465 | |
| Siesta Drive Condo | city | Utah | United States | 40.62 | -111.86 | 4557 | |
| Sigurd | city | Utah | United States | 38.84 | -111.97 | 5275 | |
| Silsbee | city | Utah | United States | 40.74 | -113.93 | 4209 | |
| Silver Acres | city | Utah | United States | 40.61 | -111.88 | 4438 | |
| Silver Bell Estates | city | Utah | United States | 41.30 | -111.86 | 5869 | |
| Silver City | city | Utah | United States | 39.91 | -112.13 | 6092 | |
| Silver Creek Junction | city | Utah | United States | 40.73 | -111.50 | 6709 | |
| Silver Fork | city | Utah | United States | 40.63 | -111.61 | 7798 | |
| Silver Lake Estates | city | Utah | United States | 40.60 | -111.58 | 9228 | |
| Silver Lake Summer Home Area | city | Utah | United States | 40.50 | -111.65 | 7549 | |
| Silver Lake Summer Resort | city | Utah | United States | 40.60 | -111.58 | 9228 | |
| Silver Meadows | city | Utah | United States | 40.70 | -112.02 | 4265 | |
| Silver Mountain Estates | city | Utah | United States | 40.58 | -111.85 | 5029 | |
| Silver Park | city | Utah | United States | 40.75 | -111.92 | 4268 | |
| Silver Reef | city | Utah | United States | 37.25 | -113.37 | 3658 | |
| Silver Ridge | city | Utah | United States | 40.55 | -111.86 | 4596 | |
| Silver Sage | city | Utah | United States | 40.55 | -111.87 | 4583 | |
| Silver Shadow Estates | city | Utah | United States | 40.56 | -111.87 | 4583 | |
| Silver Shadows | city | Utah | United States | 40.62 | -111.87 | 4507 | |
| Silver Smith | city | Utah | United States | 40.55 | -111.86 | 4596 | |
| Silver Springs | city | Utah | United States | 40.71 | -111.55 | 6709 | |
| Silvercrest Mesa | city | Utah | United States | 40.58 | -111.85 | 5029 | |
| Silvercrest Park | city | Utah | United States | 40.58 | -111.85 | 5029 | |
| Silversmith Estates | city | Utah | United States | 40.55 | -111.86 | 4596 | |
| Simmons | city | Utah | United States | 41.06 | -111.98 | 4347 | |
| Simmons | city | Utah | United States | 41.30 | -111.96 | 4399 | |
| Simoran Park Addition | city | Utah | United States | 41.25 | -111.94 | 4557 | |
| Sixmile Point | city | Utah | United States | 38.77 | -112.52 | 5186 |