How many people live in Dunn County, ND?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 4,000 people living in Dunn County, ND. That makes Dunn County the 26th-most populous county in North Dakota. It is home to 0.5% of people living in the state.
4.03K
population of Dunn County, ND (2024)
0.5%
County share of the North Dakota population (2024)
About 4,000 people lived in Dunn County, ND in 2024.
Population estimates, 2000–2024
What are Dunn County, ND’s age demographics?
About 808 Dunn County residents are aged 65 and older in 2024. That represents 20% of its population. For comparison, the age group represents 17.5% of North Dakota’s population and 18% in the US overall.
Another 1,000 Dunn County residents, or 25.1% 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 higher share of Dunn County, ND's population is aged under 18 than the US as a whole.
Population estimates by age group, (2024)
What are Dunn County, ND’s racial and ethnic demographics?
Non-Hispanic white residents make up 78.5% of the Dunn County, ND population, higher than the national share of 57.5%. Dunn County, ND also has a larger share of people identifying as non-Hispanic American Indian and Alaska Native (8.3%) than the US overall (0.72%).
In contrast, Dunn County’s Hispanic population accounts for 5%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 1.4% 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.
Dunn County, ND has a higher share of a non-Hispanic American Indian and Alaska Native population than North Dakota as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Dunn County, ND is Killdeer with about 912 residents in 2024.
Cities and towns in Dunn County, ND ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Killdeer | 912 |
| 2. | Halliday | 233 |
| 3. | Dunn Center | 229 |
| 4. | Dodge | 83 |
| 5. | Balance of Dunn County | 2,574 |
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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.
