Commonwealth is a town in Florence County, Wisconsin, home to about 512 people across 42 square miles. It has no ZIP code of its own: it’s part of 54121.
Homes sold for a median of $194 per square foot in the three months ending August 2026, a seller’s market.
Mostly Florence; part is in Commonwealth
Each card is that ZIP code’s whole market, including any part outside Commonwealth. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Commonwealth’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)205 miles away |
|---|---|
| Closer regional airport | Ford Airport (IMT)8 miles away |
| Nearest city of 250,000+ | Milwaukee, WI196 miles away |
| Nearest city of 1 million+ | Chicago, IL282 miles away |
Straight-line distances from the center of Commonwealth; 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.
Commonwealth had 390 residents in the 2020 census, down 7% since 2000.
It’s the 1458th largest of 1,889 towns in Wisconsin by population.
Florence County grew from 3,197 residents in 1900 to 4,558 in 2020.
Florence County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 78°F in summer, and winter lows average 3°F. About 30.5 inches of rain and melted snow fall in a typical year, with about 66 inches of snow.
Source: NOAA 1991–2020 climate normals, Florence, WI weather station (3 miles away).
704 jobs at 108 businesses in Florence County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
11 doctors and other health care providers list an office in Commonwealth.
Nearest hospitals
Providers with an office here
| Primary care doctors | 2 |
|---|---|
| Nurse practitioners and physician assistants | 2 |
| Mental health providers | 1 |
| Physical and occupational therapists | 6 |
| Pharmacies | 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)
Libraries (1 nearby)
Museums
Counts are within about 4.5 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 Florence County School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Florence ElementaryFlorence | Pre-K–6 | 197 | Public | 2.1 mi |
| Florence MiddleFlorence | 7–8 | 56 | Public | 1.8 mi |
| Florence HighFlorence | 9–12 | 116 | Public | 1.8 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 Florence, Homestead, Fern and Fence.
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.