8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Roosevelt | 1 | 7,536 | 6,804 | 1.98% | 1,071 | 7 | City |
| Duchesne | 2 | 1,682 | 1,590 | 1.08% | 604 | 3 | City |
| Ballard | 3 | 1,314 | 1,129 | 2.9% | 94 | 14 | Town |
| Myton | 4 | 572 | 562 | 0.35% | 565 | 1 | City |
| Neola | 5 | 472 | 447 | 0% | 125 | 4 | CDP |
| Altamont | 6 | 253 | 238 | 1.2% | 1,193 | 0 | Town |
| Bluebell | 7 | 229 | 332 | -2.14% | 24 | 10 | CDP |
| Tabiona | 8 | 157 | 150 | 0.64% | 1,308 | 0 | Town |
Roosevelt is the largest city in Duchesne County, with a population of 7,536.
Tabiona is the smallest city in Duchesne County, with a population of 157.
There are 8 cities in Duchesne County, Utah.