Kewaunee County, Wisconsin Demographics 2026

Population Overview

Kewaunee County is located in Wisconsin with a total population of 20,664. It is the 52nd most populous county out of 72 in Wisconsin. The county encompasses 4 Census-designated places.

Age Demographics

The median age in Kewaunee County is 44.6 years. This is 11% higher than the state median of 40.2 years.

Economy, Income & Housing

The median household income in Kewaunee County is $82,725. This is 7% higher than the state median of $77,485. It is also 2% higher than the national median of $80,734. The poverty rate stands at 7.6%. This is 28% lower than the state poverty rate of 10.5%. The unemployment rate is 1.5%. This is 54% lower than the state rate of 3.3%. The median home value is $222,200. Housing costs are 17% lower than the state median of $266,500. With a home-value-to-income ratio of just 2.7x, Kewaunee County is one of the most affordable housing markets in the area. 86.5% of occupied housing units are owner-occupied. This homeownership rate is 27% higher than the state average of 67.8%.

Race & Ethnicity

Kewaunee County has a predominantly White (non-Hispanic) population, comprising 92.0% of all residents. Hispanic or Latino residents account for 4.1%. The Black or African American population (0.4%) is well below the state average of 5.9%. The Asian population (0.5%) is well below the state average of 2.9%.

Education

21.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 34% lower than the state rate of 33.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.5%.

Data Sources & Methodology

All figures for Kewaunee County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Wisconsin and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.