Harrison Town (Grant County) is a town in Grant County, Wisconsin, home to about 541 people across 36 square miles. It has no ZIP code of its own: it’s part of 53818 and 53820.
Homes sold for a median of $149 per square foot across 2 ZIP codes in the three months ending August 2026, and all of them were seller’s markets.
Mostly Platteville; part is in Harrison Town (Grant County)
Part is in Harrison Town (Grant County), part in Potosi Village and Potosi Town
Each card is that ZIP code’s whole market, including any part outside Harrison Town (Grant County). Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Harrison Town (Grant County)’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)136 miles away |
|---|---|
| Closer regional airport | Dubuque Regional Airport (DBQ)23 miles away |
| Nearest city of 250,000+ | Madison, WI63 miles away |
| Nearest city of 1 million+ | Chicago, IL159 miles away |
Straight-line distances from the center of Harrison Town (Grant County); 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.
Harrison Town (Grant County) had 529 residents in the 2020 census, up 6% since 2000.
It’s the 1415th largest of 1,889 towns in Wisconsin by population.
Grant County grew from 38,881 residents in 1900 to 51,938 in 2020.
Grant County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 82°F in summer, and winter lows average 10°F. About 40.2 inches of rain and melted snow fall in a typical year, with about 43 inches of snow.
Source: NOAA 1991–2020 climate normals, Platteville, WI weather station (5 miles away).
13,342 jobs at 1,177 businesses in Grant County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
197 doctors and other health care providers list an office in Harrison Town (Grant County)’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 17 |
|---|---|
| Specialist doctors | 19 |
| Dentists | 12 |
| Nurse practitioners and physician assistants | 41 |
| Mental health providers | 59 |
| Physical and occupational therapists | 32 |
| Optometrists | 6 |
| Chiropractors | 11 |
| Pharmacies | 6 |
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
Pharmacies
Libraries (1 nearby)
Museums
Theaters and performance venues
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 Platteville School District, Potosi School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Neal Wilkins Early Learning CenterPlatteville | Pre-K–K | 205 | Public | 4.8 mi |
| Potosi ElementaryPotosi | Pre-K–5 | 166 | Public | 7.1 mi |
| Westview ElementaryPlatteville | 1–4 | 443 | Public | 3.6 mi |
| Platteville MiddlePlatteville | 5–8 | 417 | Public | 4.6 mi |
| Potosi MiddlePotosi | 6–8 | 66 | Public | 7.1 mi |
| Platteville HighPlatteville | 9–12 | 479 | Public | 5.1 mi |
| Potosi HighPotosi | 9–12 | 107 | Public | 7.1 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Ss Andrew-Thomas SchoolPotosi | Pre-K–7 | 16 | Roman Catholic | 7.0 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 Platteville, Platteville Town, Lima Town (Grant County), Potosi Village, Potosi Town, Belmont Town (Lafayette County), Smelser, Waterloo Town (Grant County), Tennyson, Paris Town (Grant County), Elk Grove and Ellenboro.
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.