Three Oaks is a township in Berrien County, Michigan, home to about 2,215 people across 23 square miles. Its ZIP code is 49128.
Homes sold for a median of $192 per square foot in the three months ending August 2026, a buyer’s market.
Mostly Three Oaks; also Chikaming and Weesaw
Each card is that ZIP code’s whole market, including any part outside Three Oaks. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Three Oaks’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Chicago Midway International Airport (MDW)59 miles away |
|---|---|
| Closer regional airport | Michigan City Municipal Airport (MGC)13 miles away |
| Nearest city of 250,000+ | Chicago, IL55 miles away |
Straight-line distances from the center of Three Oaks; 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.
Three Oaks had 2,324 residents in the 2020 census, down 21% since 2000.
It’s the 764th largest of 1,531 towns in Michigan by population.
Berrien County grew from 49,165 residents in 1900 to 154,316 in 2020.
Berrien 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 17°F. About 42.5 inches of rain and melted snow fall in a typical year, with about 65 inches of snow.
Source: NOAA 1991–2020 climate normals, Laporte, IN weather station (15 miles away).
52,794 jobs at 3,561 businesses in Berrien County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
2 doctors and other health care providers list an office in Three Oaks.
Nearest hospitals
Providers with an office here
| Dentists | 2 |
|---|---|
| Pharmacies | 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.
Parks (5 nearby)
Grocery stores
Pharmacies
Libraries
Museums (3 nearby)
Counts are within about 3.5 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 River Valley School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| River Valley Elementary SchoolThree Oaks | Pre-K–5 | 195 | Public | 1.7 mi |
| River Valley MiddleHigh SchoolThree Oaks | 6–12 | 265 | Public | 1.7 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 Chikaming and Weesaw.
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.