Green Lake County, Wisconsin Demographics 2026

Population Overview

Green Lake County is located in Wisconsin with a total population of 19,165. It is the 55th most populous county out of 72 in Wisconsin. The county encompasses 5 Census-designated places.

Age Demographics

The median age in Green Lake County is 45.5 years. This is 13% higher than the state median of 40.1 years.

Economy, Income & Housing

The median household income in Green Lake County is $66,917. This is 12% lower than the state median of $75,670. Compared to the national median of $78,538, household income here is 15% lower. The poverty rate stands at 13.3%. This is 25% higher than the state poverty rate of 10.6%. The unemployment rate is 3.2%. This is 4% lower than the state rate of 3.3%. The median home value is $206,300. Housing costs are 17% lower than the state median of $247,400. The home-value-to-income ratio is 3.1x. 75.0% of occupied housing units are owner-occupied. This homeownership rate is 10% higher than the state average of 67.9%.

Race & Ethnicity

Green Lake County has a predominantly White (non-Hispanic) population, comprising 91.0% of all residents. Hispanic or Latino residents account for 5.5%. The Black or African American population (0.6%) is well below the state average of 6.0%. The Asian population (0.5%) is well below the state average of 2.9%.

Education

22.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 31% 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 91.5%.