Lake Delton is a village in Sauk County, Wisconsin, home to about 3,482 people across 7.5 square miles. Its ZIP code is 53940, and parts of 53913 and 53965 are in Lake Delton too.
Homes sold for a median of $180 per square foot across 2 ZIP codes in the three months ending August 2026, and 1 of 2 were seller’s markets.
All in Lake Delton
Mostly Baraboo; part is in Lake Delton
Part is in Lake Delton, part in Wisconsin Dells and Dell Prairie
Each card is that ZIP code’s whole market, including any part outside Lake Delton. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Lake Delton’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | General Mitchell International Airport (MKE)103 miles away |
|---|---|
| Closer regional airport | Dane County Regional Truax Field (MSN)37 miles away |
| Nearest city of 250,000+ | Madison, WI37 miles away |
| Nearest city of 1 million+ | Chicago, IL159 miles away |
Straight-line distances from the center of Lake Delton; 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.
Lake Delton had 3,501 residents in the 2020 census, up 77% since 2000.
It’s the 274th largest of 1,889 towns in Wisconsin by population.
Sauk County grew from 33,006 residents in 1900 to 65,763 in 2020.
Sauk 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 8°F. About 37.4 inches of rain and melted snow fall in a typical year, with about 41 inches of snow.
Source: NOAA 1991–2020 climate normals, Wisconsin Dells, WI weather station (2 miles away).
31,025 jobs at 1,876 businesses in Sauk County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
3 doctors and other health care providers list an office in Lake Delton.
Nearest hospitals
Providers with an office here
| Primary care doctors | 1 |
|---|---|
| Nurse practitioners and physician assistants | 2 |
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 (5 nearby)
Grocery stores (1 nearby)
Pharmacies
Libraries
Museums
Theaters and performance venues (1 nearby)
Counts are within about 2 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 Wisconsin Dells School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Lake Delton ElementaryLake Delton | Pre-K–5 | 203 | Public | 2.1 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.
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Shares ZIP codes with Baraboo, Wisconsin Dells, Delton, Dell Prairie, West Baraboo, Baraboo Town, Fairfield, Springville, Greenfield Town (Sauk County), Dellona, Newport, New Haven Town (Adams County), Excelsior, Lyndon Town (Juneau County), Lewiston, Sumpter, Jackson Town (Adams County), Wisconsin Dells City (Sauk County), Wisconsin Dells City (Adams County) and Wisconsin Dells City (Juneau County).
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.