Lake Koshkonong CDP, Wisconsin Demographics & Population 2026

Population Overview

Lake Koshkonong CDP is a small community located in Wisconsin. The total population is 983. It ranks as the 399th most populous out of 807 cities and towns in Wisconsin.

Age Demographics

The median age in Lake Koshkonong CDP is 56.6 years. This is 41% higher than the state median of 40.1 years. Only 14.3% of residents are under 18, indicating fewer families with children. 11.5% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Lake Koshkonong CDP is $93,125. This is 23% higher than the state median of $75,670. Compared to the national median of $78,538, household income here is 19% higher. The poverty rate stands at 6.0%. This is 43% lower than the state poverty rate of 10.6%. The unemployment rate is 2.5%. This is 25% lower than the state rate of 3.3%. The median home value is $334,300. Housing costs are 35% higher than the state median of $247,400. The home-value-to-income ratio is 3.6x. 90.0% of occupied housing units are owner-occupied. This homeownership rate is 33% higher than the state average of 67.9%.

Race & Ethnicity

Lake Koshkonong CDP has a predominantly White (non-Hispanic) population, comprising 96.7% of all residents. Black or African American residents account for 1.3%. The Black or African American population (1.3%) is well below the state average of 6.0%. The Hispanic or Latino population (0.3%) is well below the state average of 7.8%. The Asian population (0.2%) is well below the state average of 2.9%.

Education

28.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 13% 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 93.9%.

Data Sources & Methodology

All demographic data for Lake Koshkonong CDP, Wisconsin is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Wisconsin state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 807 Census-designated places in Wisconsin. For official data, visit data.census.gov.