County Maps US

Dunn County, North Dakota

A county in North Dakota, ranked 26 of 53 by population.

CountyFIPS 38025

Within North Dakota
Dunn County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Manning, the county seat, located via the 2025 Census Gazetteer.

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Population
4,058
-35 (-0.9%) since 2020
Land area
2,008
square miles. A further 3.5% of the total area is water
Population density
2.0
people per square mile, computed rather than published
County seat
Manning
Seat of county government.
Established
1883
142 years ago
Largest city
Killdeer city
Population 912.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Dunn County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Dunn County, North Dakota from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 634 by 800 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Dunn County ranks

Position among the 53 counties of North Dakota, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn North DakotaNationally
Population4,05826th of 532,881st of 3,144
Land area2,008 sq mi6th of 53284th of 3,144
Population density2.0 per sq mi43rd of 532,988th of 3,144
Median household income$97,6891st of 53187th of 3,143

Full data for Dunn County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population4,058Vintage 2025 Population Estimates
Population in 20204,093Vintage 2025 Population Estimates
2020 estimates base?4,100Vintage 2025 Population Estimates
Land area2,008 sq mi2025 Gazetteer Files
Water area73.6 sq mi2025 Gazetteer Files
Total area2,082 sq mi2025 Gazetteer Files
Population density?2.0 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$97,689American Community Survey 2020-2024 5-Year Estimates
Median home value$275,000American Community Survey 2020-2024 5-Year Estimates
Median age40.4American Community Survey 2020-2024 5-Year Estimates
Households1,571American Community Survey 2020-2024 5-Year Estimates
Housing units2,088American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
+14
62 births, 48 deaths
Net migration
+72
More people moved in than moved out.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 6 areas bordering Dunn County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
McKenzie CountyNorth Dakota56 mi15,192
Stark CountyNorth Dakota44 mi34,013
Mercer CountyNorth Dakota42 mi8,441
Billings CountyNorth Dakota27 mi1,071
McLean CountyNorth Dakota25 mi9,740
Mountrail CountyNorth Dakota14 mi9,395

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 53 counties of North Dakota

Open the interactive North Dakota county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.