Fontana-on-Geneva Lake is a village in Walworth County, Wisconsin, home to about 1,737 people across 3.4 square miles. Its ZIP code is 53125.
Homes sold for a median of $434 per square foot in the three months ending August 2026, a seller’s market.
Mostly Fontana-on-Geneva Lake; also Walworth Town and Linn
Each card is that ZIP code’s whole market, including any part outside Fontana-on-Geneva Lake. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Fontana-on-Geneva Lake’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Fontana-on-Geneva Lake well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | General Mitchell International Airport (MKE)44 miles away |
|---|---|
| Closer regional airport | Chicago Rockford International Airport (RFD)36 miles away |
| Nearest city of 250,000+ | Milwaukee, WI47 miles away |
| Nearest city of 1 million+ | Chicago, IL66 miles away |
Straight-line distances from the center of Fontana-on-Geneva Lake; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Fontana-on-Geneva Lake had 3,120 residents in the 2020 census, up 78% since 2000.
It’s the 509th largest of 1,889 towns in Wisconsin by population.
Walworth County grew from 29,259 residents in 1900 to 106,478 in 2020.
Walworth County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 83°F in summer, and winter lows average 13°F. About 36.9 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Delavan Wwtp, WI weather station (8 miles away).
39,077 jobs at 2,829 businesses in Walworth County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
4 doctors and other health care providers list an office in Fontana-on-Geneva Lake.
Nearest hospitals
Providers with an office here
| Dentists | 2 |
|---|---|
| Mental health providers | 1 |
| Chiropractors | 1 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (4 nearby)
Grocery stores (1 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Museums
Theaters and performance venues
Counts are within about 1.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Fontana J8 School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Fontana ElementaryFontana | Pre-K–8 | 197 | Public | 1.0 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
Buying or selling around Fontana-on-Geneva Lake? Tell us what you need and when. No agents advertise here yet, so we’ll keep your request for up to 30 days and send it to local agents who join. No obligation, and you choose who to work with.
Loading map…
Shares ZIP codes with Walworth Town and Linn.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.