| Official Name: | Fontana-on-Geneva Lake, Wisconsin |
| Settlement Type: | Village |
| Nickname: | "Fontana" |
| Mapsize: | 250px |
| Subdivision Type: | Country |
| Subdivision Name: |  United States |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Walworth |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 8.77 |
| Area Land Km2: | 8.67 |
| Area Water Km2: | 0.10 |
| Area Total Sq Mi: | 3.39 |
| Area Land Sq Mi: | 3.35 |
| Area Water Sq Mi: | 0.04 |
| Population As Of: | 2020 |
| Population Total: | 3120 |
| Population Density Km2: | 200.73 |
| Population Density Sq Mi: | 519.86 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Footnotes: | [2] |
| Coordinates: | 42.5442°N -88.5661°W |
| Postal Code Type: | ZIP Code |
| Postal Code: | 53125 |
| Blank Name: | FIPS code |
| Blank Info: | 55-26350[3] |
| Pop Est Footnotes: | [4] |
Fontana-on-Geneva Lake (locally known as "Fontana") is a village located on Geneva Lake in Walworth County, Wisconsin, United States. The population was 3,120 at the 2020 census.
Fontana-on-Geneva Lake is located at 42.5442°N -88.5661°W (42.544288, -88.566010).[5]
According to the United States Census Bureau, the village has a total area of 3.39sqmi, of which, 3.35sqmi of it is land and 0.04sqmi is water.[6]
As of the census[7] of 2010, there were 1,672 people, 732 households, and 491 families living in the village. The population density was 499.1PD/sqmi. There were 2,308 housing units at an average density of 689/sqmi. The racial makeup of the village was 97.9% White, 0.1% Native American, 0.7% Asian, 0.8% from other races, and 0.5% from two or more races. Hispanic or Latino of any race were 2.1% of the population.
There were 732 households, of which 23.1% had children under the age of 18 living with them, 59.4% were married couples living together, 5.2% had a female householder with no husband present, 2.5% had a male householder with no wife present, and 32.9% were non-families. 29.1% of all households were made up of individuals, and 13.8% had someone living alone who was 65 years of age or older. The average household size was 2.28 and the average family size was 2.82.
The median age in the village was 50.6 years. 19.1% of residents were under the age of 18; 5.5% were between the ages of 18 and 24; 15.6% were from 25 to 44; 36.7% were from 45 to 64; and 22.9% were 65 years of age or older. The gender makeup of the village was 48.1% male and 51.9% female.
As of the census of 2000, there were 1,754 people, 764 households, and 524 families living in the village. The population density was 592.0 people per square mile (228.8/km2). There were 1,974 housing units at an average density of 666.3 per square mile (257.5/km2). The racial makeup of the village was 98.23% White, 0.40% African American, 0.86% Asian, 0.40% from other races, and 0.11% from two or more races. Hispanic or Latino of any race were 1.08% of the population.
There were 764 households, out of which 22.8% had children under the age of 18 living with them, 60.7% were married couples living together, 5.1% had a female householder with no husband present, and 31.3% were non-families. 27.1% of all households were made up of individuals, and 11.1% had someone living alone who was 65 years of age or older. The average household size was 2.30 and the average family size was 2.79.
In the village, the population was spread out, with 20.1% under the age of 18, 4.8% from 18 to 24, 24.2% from 25 to 44, 30.6% from 45 to 64, and 20.2% who were 65 years of age or older. The median age was 46 years. For every 100 females, there were 99.8 males. For every 100 females age 18 and over, there were 98.4 males.
The median income for a household in the village was $54,211, and the median income for a family was $63,594. Males had a median income of $41,750 versus $31,813 for females. The per capita income for the village was $32,266. About 2.4% of families and 3.8% of the population were below the poverty line, including 3.8% of those under age 18 and 3.0% of those age 65 or over.