Village · Wisconsin
Fontana-on-Geneva Lake, Wisconsin
Fontana-on-Geneva Lake, village, in Walworth County, Wisconsin. Fontana-on-Geneva Lake had 1,886 residents on July 1, 2025 by the Census Bureau's estimate, down 0.8% from the Bureau's April 2020 estimates base of 1,902; the 2020 Census counted 3,120 on the place as it was defined then and the ACS 2020-2024 5-year estimates put it at 1,737 (±192). GEOID 5526350.
Residents, July 2025 estimate
1,886
Census Bureau estimate (no margin published)
2020 Census count: 3,120 · ACS 2020-2024: 1,737 ±192
Median household income
$106,750
±$19,889 (90% margin)
Wisconsin: $77,485
Median home value
$572,600
±$76,790 (90% margin)
Wisconsin: $266,500
Median gross rent
$1,149
±$212 (90% margin)
Wisconsin: $1,087
Where is Fontana-on-Geneva Lake and what county is it in?
Fontana-on-Geneva Lake is a village in Walworth County, Wisconsin. It covers 3.4 square miles of land, 929 residents per square mile in 2020.
Fontana-on-Geneva Lake is in the Whitewater-Elkhorn, WI micropolitan statistical area (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Fontana-on-Geneva Lake, and is it growing?
The Census Bureau estimates that 1,886 people lived in Fontana-on-Geneva Lake on July 1, 2025, down 0.8% since 2020, while Wisconsin grew 1.3%. The Census Bureau's yearly estimates start from its own April 2020 base for Fontana-on-Geneva Lake, 1,902, which differs from the 2020 Census count of 3,120: the estimates follow the place as the estimates program defines it today (its present boundaries, and for a consolidated city-county the area the program assigns it), so the change since 2020 is measured from that base. The 2020-2024 American Community Survey, a five-year sample, puts the population at 1,737 (±192).
| Measure | Fontana-on-Geneva Lake | Walworth County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 1,737 ±192 | 105,657 | no clear change |
| Households | 784 ±83 | 43,087 | no clear change |
| Average household size | 2.22 ±0.17 | 2.38 | no clear change |
| Housing units | 2,009 ±137 | 54,124 | −347 |
Fontana-on-Geneva Lake's population since 2000
From 1,754 in 2000 to 1,886 in 2025: up 7.5%. The 2000, 2010 and 2020 figures are census counts, each for Fontana-on-Geneva Lake as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Fontana-on-Geneva Lake?
The median resident of Fontana-on-Geneva Lake is 57.1 years old; 15.1% are under 18 and 33.2% are 65 or older. The largest group is non-Hispanic white residents at 93.4%, then non-Hispanic residents of two or more races at 2.8%. 3.8% of residents were born outside the United States.
| Measure | Fontana-on-Geneva Lake | Walworth County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 57.1 ±3.3 | 41.4 | no clear change |
| Under 18 years | 15.1% ±4.3 pts | 19.5% | – |
| 65 years and over | 33.2% ±4.6 pts | 20.0% | – |
| Male | 47.6% ±3.0 pts | 50.3% | – |
| Hispanic or Latino (any race) | 1.8% ±1.5 pts | 12.1% | – |
| White alone, not Hispanic | 93.4% ±3.3 pts | 83.1% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±1.3 pts | 0.7% | – |
| Asian alone, not Hispanic | 0.6% ±0.6 pts | 0.8% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±1.3 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.3 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.8% ±2.1 pts | 2.8% | – |
| Some other race alone, not Hispanic | 1.4% ±1.9 pts | 0.3% | – |
| Born outside the United States | 3.8% ±1.7 pts | 6.2% | no clear change |
| Speak a language other than English at home (age 5+) | 3.2% ±1.7 pts | 10.7% | – |
| Civilian veterans (age 18+) | 5.4% ±2.6 pts | 5.8% | – |
| With a disability | 10.8% ±3.3 pts | 12.3% | – |
| No health insurance coverage | 4.7% ±2.4 pts | 5.7% | no clear change |
| High school graduate or higher (age 25+) | 98.3% ±1.3 pts | 93.0% | – |
| Bachelor's degree or higher (age 25+) | 59.1% ±6.1 pts | 32.4% | no clear change |
| Graduate or professional degree (age 25+) | 21.7% ±4.1 pts | 11.1% | – |
| Lived in the same house a year earlier | 92.0% ±3.2 pts | 86.7% | – |
| Moved from another state in the past year | 6.4% ±3.0 pts | 2.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Fontana-on-Geneva Lake earn?
Half of Fontana-on-Geneva Lake's 784 households earn less than $106,750 a year (±$19,889), against $80,520 in Walworth County and $77,485 in Wisconsin. In 2015-2019 it was $110,470 in 2024 dollars; the margins of error cannot tell the two periods apart. 7.5% of residents live below the poverty line.
| Measure | Fontana-on-Geneva Lake | Walworth County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $106,750 ±$19,889 | $80,520 | no clear change |
| Mean household income | $187,146 ±$33,185 | $109,464 | – |
| Per capita income | $86,074 ±$16,339 | $45,175 | no clear change |
| People below the poverty line | 7.5% ±4.2 pts | 9.4% | no clear change |
| Children under 18 below the poverty line | 11.5% ±17.1 pts | 9.6% | – |
| Households receiving SNAP | 2.2% ±2.4 pts | 7.7% | – |
| Households with a computer | 96.3% ±3.8 pts | 95.7% | – |
| Households with a broadband subscription | 91.6% ±4.8 pts | 88.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Fontana-on-Geneva Lake?
Owners occupy 87.0% of Fontana-on-Geneva Lake's occupied homes and renters 13.0%. The median owner-occupied home is valued at $572,600 by its owner (±$76,790). The median renter pays $1,149 a month including utilities, and 48.1% of renters pay 35% or more of their income on rent.
| Measure | Fontana-on-Geneva Lake | Walworth County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $572,600 ±$76,790 | $302,700 | +$93,860 |
| Median gross rent | $1,149 ±$212 | $1,150 | no clear change |
| Renters paying 35% or more of income on rent | 48.1% ±27.7 pts | 33.9% | no clear change |
| Median monthly owner costs, with a mortgage | $2,245 ±$337 | $1,746 | – |
| Owner-occupied homes | 87.0% ±5.5 pts | 70.6% | no clear change |
| Renter-occupied homes | 13.0% ±5.5 pts | 29.4% | – |
| Housing units | 2,009 ±137 | 54,124 | −347 |
| Homeowner vacancy rate | 5.3% ±5.2 pts | 0.8% | – |
| Rental vacancy rate | 0.0% ±19.7 pts | 6.2% | – |
| Single-family detached homes | 72.5% ±4.9 pts | 69.8% | – |
| Mobile homes | 0.5% ±0.8 pts | 2.4% | – |
| Built 2020 or later | 0.6% ±0.6 pts | 1.2% | – |
| Built 2010 to 2019 | 6.0% ±2.4 pts | 6.5% | – |
| Built 1939 or earlier | 12.3% ±3.3 pts | 15.5% | – |
| Households with no vehicle | 3.4% ±2.3 pts | 3.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Fontana-on-Geneva Lake building?
Builders took permits for 20 new housing units in Fontana-on-Geneva Lake in 2025 (20 in single-family houses), 10.6 per 1,000 residents against 4.3 across Wisconsin.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Fontana-on-Geneva Lake work and get to work?
68.3% of Fontana-on-Geneva Lake's workers drive alone and 26.1% work from home. The average trip to work takes 32.4 minutes. The unemployment rate in 2020-2024 averaged 3.3%.
| Measure | Fontana-on-Geneva Lake | Walworth County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 57.9% ±4.7 pts | 65.8% | – |
| Unemployment rate | 3.3% ±2.1 pts | 2.9% | no clear change |
| Drove alone to work | 68.3% ±7.5 pts | 76.7% | – |
| Carpooled | 2.6% ±2.8 pts | 7.6% | – |
| Public transportation | 2.6% ±2.9 pts | 0.2% | – |
| Walked | 0.2% ±0.5 pts | 3.1% | – |
| Worked from home | 26.1% ±6.2 pts | 11.2% | +18.1 pts |
| Mean travel time to work | 32.4 min ±4.1 | 23.9 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Fontana-on-Geneva Lake?
1 census tract lies mostly in Fontana-on-Geneva Lake, and 3 more reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 16.07Walworth County | 2,155 | $130,357 |
| Tract 16.08Walworth County | 2,746 | $66,339 |
| Tract 16.03Walworth County | 2,986 | $74,706 |
| Tract 17.02Walworth County | 5,479 | $85,385 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Fontana-on-Geneva Lake) · Census block assignment files
How does Fontana-on-Geneva Lake compare with other places in Wisconsin?
By the Census Bureau's July 2025 estimates, Fontana-on-Geneva Lake is the 7,892nd-most populous of the 19,476 U.S. incorporated places that have one and the 268th-most populous of 608 in Wisconsin.
Fontana-on-Geneva Lake ranks 164th of 914 places in Wisconsin with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 268th | 608 |
| Growth 2020-2025 (PEP) | 680th | 884 |
| Residents per square mile | 228th | 914 |
| Median household income | 164th | 914 |
| Per capita income | 10th | 911 |
| Median home value | 11th | 913 |
| Median gross rent | 261st | 825 |
| Poverty rate | 344th | 706 |
| Bachelor's degree or higher | 28th | 914 |
| Median age | 45th | 914 |
| Owner-occupied share | 424th | 914 |
| Work from home | 15th | 827 |
| Travel time to work | 42nd | 914 |
Fontana-on-Geneva Lake's figures with every place in Wisconsin (CSV)
Every place in Wisconsin, sortable · Compare Fontana-on-Geneva Lake with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Fontana-on-Geneva Lake?
17 of the 57 figures for Fontana-on-Geneva Lake on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Fontana-on-Geneva Lake are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Fontana-on-Geneva Lake.