Fontana-on-Geneva Lake, Wisconsin Demographics & Population 2026

Population Overview

Fontana-on-Geneva Lake is a small community located in Wisconsin, within Walworth County. The total population is 1,737. It ranks as the 289th most populous out of 808 Census-designated places in Wisconsin.

Age Demographics

The median age in Fontana-on-Geneva Lake is 57.1 years. This is 42% higher than the state median of 40.2 years. 10.4% 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 Fontana-on-Geneva Lake is $106,750. This is 38% higher than the state median of $77,485. It is also 32% higher than the national median of $80,734. The poverty rate stands at 7.5%. This is 29% lower than the state poverty rate of 10.5%. The unemployment rate is 3.3%. The median home value is $572,600. Housing costs are 115% higher than the state median of $266,500. The home-value-to-income ratio is 5.4x. 87.0% of occupied housing units are owner-occupied. This homeownership rate is 28% higher than the state average of 67.8%.

Race & Ethnicity

Fontana-on-Geneva Lake has a predominantly White (non-Hispanic) population, comprising 93.4% of all residents. Hispanic or Latino residents account for 1.8%. The Hispanic or Latino population (1.8%) is well below the state average of 8.0%. The Asian population (0.6%) is well below the state average of 2.9%.

Education

59.1% of residents aged 25 and older hold a bachelor's degree or higher. This places Fontana-on-Geneva Lake in the top 10% of all cities in the state for educational attainment. This is 77% higher 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 98.3%. Notably, 21.7% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Fontana-on-Geneva Lake, Wisconsin is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Wisconsin state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 808 Census-designated places in Wisconsin. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.