Birch is a town in Lincoln County, Wisconsin, home to about 684 people across 36 square miles. It has no ZIP code of its own: it’s part of 54435 and 54442.
Homes sold for a median of $219 per square foot across 2 ZIP codes in the three months ending August 2026, and 1 of 2 were seller’s markets.
Mostly Russell Town (Lincoln County); part is in Birch
Mostly Rock Falls; part is in Birch
Each card is that ZIP code’s whole market, including any part outside Birch. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Birch’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)180 miles away |
|---|---|
| Closer regional airport | Rhinelander Oneida County Airport (RHI)21 miles away |
| Nearest city of 250,000+ | Madison, WI156 miles away |
| Nearest city of 1 million+ | Chicago, IL260 miles away |
Straight-line distances from the center of Birch; 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.
Birch had 570 residents in the 2020 census, down 29% since 2000.
It’s the 1233rd largest of 1,889 towns in Wisconsin by population.
Lincoln County grew from 16,269 residents in 1900 to 28,415 in 2020.
Lincoln County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 80°F in summer, and winter lows average 3°F. About 33.9 inches of rain and melted snow fall in a typical year, with about 54 inches of snow.
Source: NOAA 1991–2020 climate normals, Merrill, WI weather station (12 miles away).
8,854 jobs at 686 businesses in Lincoln County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Public schools here are run by Wisconsin Department of Corrections. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| DOC: Lincoln Hills/Copper Lake SchoolIrma | 6–12 | 38 | Alternative Education | 3.2 mi |
| Copper Lake SchoolIrma | 7–12 | 14 | Alternative Education | 3.2 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 Russell Town (Lincoln County), Harrison Town (Lincoln County), Rock Falls, Schley, Skanawan, Summit Town (Langlade County), Vilas, Merrill Town, Bradley and Parrish.
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.