8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Roosevelt | 1 | 7,505 | 6,802 | 1.91% | 1,066 | 7.04 | City |
| Duchesne | 2 | 1,678 | 1,590 | 1.08% | 602 | 2.79 | City |
| Ballard | 3 | 1,300 | 1,127 | 2.77% | 93 | 13.95 | Town |
| Myton | 4 | 564 | 561 | 0.18% | 557 | 1.01 | City |
| Neola | 5 | 472 | 447 | 0% | 125 | 3.77 | CDP |
| Altamont | 6 | 255 | 239 | 1.19% | 1,203 | 0.21 | Town |
| Bluebell | 7 | 229 | 332 | -2.14% | 24 | 9.74 | CDP |
| Tabiona | 8 | 159 | 149 | 1.27% | 1,325 | 0.12 | Town |
Roosevelt is the largest city in Duchesne County, with a population of 7,505.
Tabiona is the smallest city in Duchesne County.
There are 8 cities in Duchesne County, Utah.