County Maps US

Kewaunee County, Wisconsin

A county in Wisconsin, ranked 52 of 72 by population.

CountyFIPS 55061

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

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Population
20,758
+206 (+1.0%) since 2020
Land area
342.5
square miles. A further 68.4% of the total area is water
Population density
60.6
people per square mile, computed rather than published
County seat
Kewaunee
Seat of county government.
Established
1852
173 years ago
Largest city
Algoma city
Population 3,225.

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 Kewaunee 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 Kewaunee 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 655 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 Kewaunee 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
Population20,75852nd of 721,790th of 3,144
Land area342.5 sq mi66th of 722,703rd of 3,144
Population density60.6 per sq mi32nd of 721,297th of 3,144
Median household income$82,72512th of 72490th of 3,143

Full data for Kewaunee County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population20,758Vintage 2025 Population Estimates
Population in 202020,552Vintage 2025 Population Estimates
2020 estimates base?20,559Vintage 2025 Population Estimates
Land area342.5 sq mi2025 Gazetteer Files
Water area741.8 sq mi2025 Gazetteer Files
Total area1,084 sq mi2025 Gazetteer Files
Population density?60.6 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$82,725American Community Survey 2020-2024 5-Year Estimates
Median home value$222,200American Community Survey 2020-2024 5-Year Estimates
Median age44.6American Community Survey 2020-2024 5-Year Estimates
Households8,357American Community Survey 2020-2024 5-Year Estimates
Housing units9,367American 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
-50
182 births, 232 deaths
Net migration
+40
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 5 areas bordering Kewaunee 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
Door CountyWisconsin48 mi30,616
Manitowoc CountyWisconsin42 mi81,710
Brown CountyWisconsin24 mi275,803
Manistee CountyMichigan14 mi25,656
Benzie CountyMichigan11 mi18,568

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.