7 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Park City | 1 | 8,261 | 8,413 | -0.37% | 371 | 22 | City |
| Kamas | 2 | 2,154 | 2,109 | 0.42% | 552 | 4 | City |
| Francis | 3 | 1,921 | 1,601 | 3.45% | 498 | 4 | Town |
| Oakley | 4 | 1,558 | 1,595 | -0.51% | 220 | 7 | City |
| Coalville | 5 | 1,554 | 1,487 | 0.84% | 252 | 6 | City |
| Henefer | 6 | 811 | 841 | -0.73% | 329 | 2 | Town |
| Bear River | 7 | 521 | 520 | 0% | 252 | 2 | Town |
Park City is the largest city in Summit County, with a population of 8,261.
Bear River is the smallest city in Summit County, with a population of 521.
There are 7 cities in Summit County, Utah.