Clark County, Wisconsin Demographics 2026

Population Overview

Clark County is located in Wisconsin with a total population of 34,736. It is the 41st most populous county out of 72 in Wisconsin. The county encompasses 9 Census-designated places.

Age Demographics

The median age in Clark County is 37.0 years. This is 8% lower than the state median of 40.1 years. With 29.8% of the population under 18, Clark County has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Clark County is $66,250. This is 12% lower than the state median of $75,670. Compared to the national median of $78,538, household income here is 16% lower. The poverty rate stands at 12.0%. This is 14% higher than the state poverty rate of 10.6%. The unemployment rate is 3.3%. The median home value is $163,800. Housing costs are 34% lower than the state median of $247,400. With a home-value-to-income ratio of just 2.5x, Clark County is one of the most affordable housing markets in the area. 77.9% of occupied housing units are owner-occupied. This homeownership rate is 15% higher than the state average of 67.9%.

Race & Ethnicity

Clark County has a predominantly White (non-Hispanic) population, comprising 90.9% of all residents. Hispanic or Latino residents account for 6.1%. The Black or African American population (0.3%) is well below the state average of 6.0%. The Asian population (0.4%) is well below the state average of 2.9%.

Education

13.4% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 59% lower than the state rate of 32.8%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 82.5%.