Founded in January 4, 1915, Duchesne County is one of 29 counties in the state of Utah. Historically, Duchesne County was formed from part of Wasatch County. The city of Duchesne is the county seat. With FIPS code of 13, Duchesne County has a population of 19,790 and area of 3,241 square miles (8,394 km2).
List of all cities in Duchesne County, UT alphabetically
| City/Town | Postal Code | Area Code |
| Altamont, UT | 84001 | 435 |
| Altonah, UT | 84002 | 435 |
| Arcadia, UT | 84021 | 435 |
| Ballard, UT | 84066 | 435 |
| Bluebell, UT | 84007 | 435 |
| Boneta, UT | 84001 | 435 |
| Bridgeland, UT | 84021 | 435 |
| Defas Park, UT | 84031 | 435 |
| Duchesne, UT | 84021 | 435 |
| 84031 | 435 | |
| Fruitland, UT | 84027 | 435 |
| Hanna, UT | 84031 | 435 |
| Ioka, UT | 84066 | 435 |
| Leeton, UT | 84066 | 435 |
| Monarch, UT | 84066 | 435 |
| Mountain Home, UT | 84051 | 435 |
| Myton, UT | 84052 | 435 |
| Neola, UT | 84053 | 435 |
| Roosevelt, UT | 84066 | 435 |
| Tabiona, UT | 84072 | 435 |
| Talmage, UT | 84073 | 435 |
| Upalco, UT | 84007 | 435 |