Lannon is a village in Waukesha County, Wisconsin, home to about 1,482 people across 2.5 square miles. Its ZIP code is 53046.
Homes sold for a median of $246 per square foot in the three months ending August 2026, a seller’s market.
Each card is that ZIP code’s whole market, including any part outside Lannon. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Lannon’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)19 miles away |
|---|---|
| Nearest city of 250,000+ | Milwaukee, WI12 miles away |
| Nearest city of 1 million+ | Chicago, IL94 miles away |
Straight-line distances from the center of Lannon; 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.
Lannon had 1,355 residents in the 2020 census, up 34% since 2000.
It’s the 613th largest of 1,889 towns in Wisconsin by population.
Waukesha County grew from 35,229 residents in 1900 to 406,978 in 2020.
Waukesha 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 11°F. About 36.9 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Richfield 3 Ssw, WI weather station (5 miles away).
246,232 jobs at 12,761 businesses in Waukesha County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
2 doctors and other health care providers list an office in Lannon.
Nearest hospitals
Providers with an office here
| Mental health providers | 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 (3 nearby)
Grocery stores
Pharmacies
Libraries
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 Hamilton School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Lannon ElementaryLannon | K–4 | 350 | Public | 0.2 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| St Johns Lutheran SchoolLannon | Pre-K–8 | 115 | Wisconsin Evangelical Lutheran Synod | 0.4 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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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.