La Prairie is a town in Rock County, Wisconsin, home to about 839 people across 34 square miles. It has no ZIP code of its own: it’s part of 53546.
Homes sold for a median of $192 per square foot in the three months ending August 2026, a seller’s market.
Mostly Janesville; part is in La Prairie
Each card is that ZIP code’s whole market, including any part outside La Prairie. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up La Prairie’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)59 miles away |
|---|---|
| Closer regional airport | Chicago Rockford International Airport (RFD)33 miles away |
| Nearest city of 250,000+ | Madison, WI36 miles away |
| Nearest city of 1 million+ | Chicago, IL88 miles away |
Straight-line distances from the center of La Prairie; 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.
La Prairie had 784 residents in the 2020 census, down 16% since 2000.
It’s the 1067th largest of 1,889 towns in Wisconsin by population.
Rock County grew from 51,203 residents in 1900 to 163,687 in 2020.
Rock 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 12°F. About 37.4 inches of rain and melted snow fall in a typical year, with about 37 inches of snow.
Source: NOAA 1991–2020 climate normals, Afton - Janesville Wwtp, WI weather station (4 miles away).
64,537 jobs at 3,362 businesses in Rock County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
332 doctors and other health care providers list an office in La Prairie.
Nearest hospitals
Providers with an office here
| Primary care doctors | 91 |
|---|---|
| Specialist doctors | 69 |
| Dentists | 14 |
| Nurse practitioners and physician assistants | 62 |
| Mental health providers | 50 |
| Physical and occupational therapists | 39 |
| Optometrists | 4 |
| Chiropractors | 3 |
| Pharmacies | 8 |
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 (52 nearby)
Grocery stores (6 nearby)
Pharmacies (6 nearby)
Libraries (2 nearby)
Museums (1 nearby)
Theaters and performance venues (3 nearby)
Counts are within about 4 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 Milton School District, Janesville School District, Wisconsin Dept of Public Instruction. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Harmony ElementaryJanesville | Pre-K–3 | 288 | Public | 4.7 mi |
| Harrison ElementaryJanesville | Pre-K–5 | 266 | Public | 2.3 mi |
| Jackson ElementaryJanesville | Pre-K–5 | 339 | Public | 1.8 mi |
| Kennedy ElementaryJanesville | Pre-K–5 | 404 | Public | 3.2 mi |
| Lincoln ElementaryJanesville | Pre-K–5 | 291 | Public | 2.3 mi |
| Van Buren ElementaryJanesville | Pre-K–5 | 408 | Public | 1.9 mi |
| Wisconsin Center for the Blind and Visually ImpairedJanesville | 1–12 | — | Special Education | 1.9 mi |
| Edison MiddleJanesville | 6–8 | 587 | Public | 1.9 mi |
| Rock University HighJanesville | 9–12 | 93 | Charter | 5.2 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Rock Prairie MontessoriJanesville | Pre-K–8 | 87 | Nonsectarian | 5.2 mi |
| Oakhill Christian SchoolJanesville | K–12 | 84 | Christian (no specific denomination) | 2.2 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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Shares ZIP codes with Janesville, Harmony Town (Rock County), Rock Town (Rock County), Bradford and Johnstown Town (Rock 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.