Caswell is a town in Forest County, Wisconsin, home to about 89 people across 45 square miles. It has no ZIP code of its own: it’s part of 54511.
Homes sold for a median of $189 per square foot in the three months ending August 2026, a buyer’s market.
Mostly Argonne; part is in Caswell
Each card is that ZIP code’s whole market, including any part outside Caswell. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Caswell’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)196 miles away |
|---|---|
| Closer regional airport | Rhinelander Oneida County Airport (RHI)32 miles away |
| Nearest city of 250,000+ | Madison, WI184 miles away |
| Nearest city of 1 million+ | Chicago, IL273 miles away |
Straight-line distances from the center of Caswell; 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.
Caswell had 72 residents in the 2020 census, down 29% since 2000.
It’s the 1859th largest of 1,889 towns in Wisconsin by population.
Forest County grew from 1,396 residents in 1900 to 9,179 in 2020.
Forest County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 73°F in summer, and winter lows average 4°F. About 34.2 inches of rain and melted snow fall in a typical year, with about 80 inches of snow.
Source: NOAA 1991–2020 climate normals, Laona 6 Sw, WI weather station (14 miles away).
1,532 jobs at 227 businesses in Forest County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
1 doctors and other health care providers list an office in Caswell.
Nearest hospitals
Providers with an office here
| Mental health providers | 1 |
|---|
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.
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Shares ZIP codes with Argonne, Hiles Town (Forest County), Lincoln Town (Forest County), Ross, Crandon Town and Popple River.
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.