How many people live in Traill County, ND?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 8,000 people living in Traill County, ND. That makes Traill County the 18th-most populous county in North Dakota. It is home to 1% of people living in the state.
7.99K
population of Traill County, ND (2024)
1%
County share of the North Dakota population (2024)
About 8,000 people lived in Traill County, ND in 2024.
Population estimates, 2000–2024
What are Traill County, ND’s age demographics?
About 1,700 Traill County residents are aged 65 and older in 2024. That represents 21.3% of its population. For comparison, the age group represents 17.5% of North Dakota’s population and 18% in the US overall.
Another 1,800 Traill County residents, or 22.9% of the population, were children under 18. For comparison, the age group represents 23.5% of North Dakota’s population and 21.6% in the US overall.
A lower share of Traill County, ND's population is aged 25–44 than the US as a whole.
Population estimates by age group, (2024)
What are Traill County, ND’s racial and ethnic demographics?
Non-Hispanic white residents make up 89.8% of the Traill County population, higher than the national share of 57.5%. Traill County also has a larger share of people identifying as non-Hispanic American Indian and Alaska Native (1.7%) than the US overall (0.72%).
In contrast, Traill County’s Hispanic population accounts for 4.6%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 1.2% of the county, compared with 12.6% 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.
Traill County, ND has a higher share of a non-Hispanic white population than North Dakota as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Traill County, ND is Mayville with about 1,800 residents in 2024.
Cities and towns in Traill County, ND ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Mayville | 1,820 |
| 2. | Hillsboro | 1,661 |
| 3. | Hatton | 716 |
| 4. | Portland | 582 |
| 5. | Buxton | 353 |
| 6. | Viking | 178 |
| 7. | Reynolds (pt.) | 178 |
| 8. | Ervin | 173 |
| 9. | Garfield | 171 |
| 10. | Norway | 160 |
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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.
