How many people live in Duchesne County, UT?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 20,800 people living in Duchesne County, UT. That makes Duchesne County the 15th-most populous county in Utah. It is home to 0.59% of people living in the state.
20.8K
population of Duchesne County, UT (2024)
0.59%
County share of the Utah population (2024)
About 20,800 people lived in Duchesne County, UT in 2024.
Population estimates, 2000–2024
What are Duchesne County, UT’s age demographics?
About 2,900 Duchesne County residents are aged 65 and older in 2024. That represents 14% of its population. For comparison, the age group represents 12.4% of Utah’s population and 18% in the US overall.
Another 6,500 Duchesne County residents, or 31% of the population, were children under 18. For comparison, the age group represents 26.7% of Utah’s population and 21.6% in the US overall.
A higher share of Duchesne County, UT's population is aged under 18 than the US as a whole.
Population estimates by age group, (2024)
What are Duchesne County, UT’s racial and ethnic demographics?
Non-Hispanic white residents make up 84.6% of the Duchesne County, UT population, higher than the national share of 57.5%. Duchesne County, UT also has a larger share of people identifying as non-Hispanic American Indian and Alaska Native (3.3%) than the US overall (0.72%).
In contrast, Duchesne County’s non-Hispanic Black or African American population accounts for 0.36%, below the 12.6% nationwide, and the Hispanic population makes up 8.4% of the county, compared with 20% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Duchesne County, UT has a higher share of a non-Hispanic white population than Utah as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Duchesne County, UT is Roosevelt with about 7,400 residents in 2024.
Cities and towns in Duchesne County, UT ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Roosevelt | 7,390 |
| 2. | Duchesne | 1,664 |
| 3. | Myton | 570 |
| 4. | Altamont | 250 |
| 5. | Tabiona | 156 |
| 6. | Balance of Duchesne County | 10,773 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
