Summit County, Utah
| Summit County | |
|---|---|
| Summit County Courthouse in Coalville | |
| Location within the U.S. state of Utah | |
| Utah's location within the U.S. | |
| Coordinates: 40°53′N 110°58′W / 40.88°N 110.97°W | |
| Country | United States | 
| State | Utah | 
| Founded | 1854 (created) 1861 (organized) | 
| Named after | The summits of the mountains | 
| Seat | Coalville | 
| Largest city | Park City | 
| Area | |
|  • Total | 1,882 sq mi (4,870 km2) | 
| • Land | 1,872 sq mi (4,850 km2) | 
| • Water | 10 sq mi (30 km2) 0.5% | 
| Population  (2020) | |
|  • Total | 42,357 | 
|  • Estimate  (2024) | 43,109 | 
| • Density | 23/sq mi (8.7/km2) | 
| Time zone | UTC−7 (Mountain) | 
| • Summer (DST) | UTC−6 (MDT) | 
| Congressional district | 1st | 
| Website | www | 
Summit County is a county in the U.S. state of Utah, occupying a rugged and mountainous area. As of the 2020 United States census, the population was 42,357. Its county seat is Coalville, and the largest city is Park City.