County Maps US

Dunn County, Wisconsin

A county in Wisconsin, ranked 32 of 72 by population.

CountyFIPS 55033

Within Wisconsin
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 Menomonie, the county seat, located via the 2025 Census Gazetteer.

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Population
46,223
+761 (+1.7%) since 2020
Land area
850.2
square miles. A further 1.6% of the total area is water
Population density
54.4
people per square mile, computed rather than published
County seat
Menomonie
Seat of county government.
Established
1854
171 years ago
Largest city
Menomonie city
Population 16,664.

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, Wisconsin 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 573 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 72 counties of Wisconsin, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn WisconsinNationally
Population46,22332nd of 721,069th of 3,144
Land area850.2 sq mi26th of 72980th of 3,144
Population density54.4 per sq mi34th of 721,392nd of 3,144
Median household income$74,82430th of 72853rd 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
Population46,223Vintage 2025 Population Estimates
Population in 202045,462Vintage 2025 Population Estimates
2020 estimates base?45,449Vintage 2025 Population Estimates
Land area850.2 sq mi2025 Gazetteer Files
Water area13.7 sq mi2025 Gazetteer Files
Total area863.9 sq mi2025 Gazetteer Files
Population density?54.4 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$74,824American Community Survey 2020-2024 5-Year Estimates
Median home value$243,200American Community Survey 2020-2024 5-Year Estimates
Median age36.1American Community Survey 2020-2024 5-Year Estimates
Households17,440American Community Survey 2020-2024 5-Year Estimates
Housing units18,983American 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
+13
392 births, 379 deaths
Net migration
+202
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 7 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
St. Croix CountyWisconsin25 mi98,276
Chippewa CountyWisconsin25 mi67,614
Barron CountyWisconsin24 mi46,484
Pepin CountyWisconsin24 mi7,513
Pierce CountyWisconsin12 mi43,519
Eau Claire CountyWisconsin12 mi109,033
Polk CountyWisconsina single point45,803

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

All 72 counties of Wisconsin

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

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