Duplain is a township in Clinton County, Michigan, home to about 2,349 people across 35 square miles. Its ZIP code is 48831, and parts of 48866 are in Duplain too.
Homes sold for a median of $149 per square foot in the three months ending August 2026, a seller’s market.
Mostly Duplain; also Chapin and Fairfield Township (Shiawassee County)
Mostly Ovid Township (Clinton County); part is in Duplain
Each card is that ZIP code’s whole market, including any part outside Duplain. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Duplain’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Gerald R. Ford International Airport (GRR)59 miles away |
|---|---|
| Closer regional airport | Capital Region International Airport (LAN)23 miles away |
| Nearest city of 250,000+ | Detroit, MI81 miles away |
| Nearest city of 1 million+ | Chicago, IL189 miles away |
Straight-line distances from the center of Duplain; 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.
Duplain had 2,303 residents in the 2020 census, down 1% since 2000.
It’s the 731st largest of 1,531 towns in Michigan by population.
Clinton County grew from 25,136 residents in 1900 to 79,128 in 2020.
Clinton County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 83°F in summer, and winter lows average 18°F. About 34.1 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Saint Johns, MI weather station (10 miles away).
17,584 jobs at 1,406 businesses in Clinton County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
4 doctors and other health care providers list an office in Duplain.
Nearest hospitals
Providers with an office here
| Dentists | 1 |
|---|---|
| Nurse practitioners and physician assistants | 1 |
| Mental health providers | 1 |
| Physical and occupational therapists | 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 (3 nearby)
Museums
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 Michigan International Prep School, Ovid-Elsie Area Schools. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Michigan International Prep SchoolElsie | K–12 | 1,657 | Charter | 41.0 mi |
| EE Knight Elementary SchoolElsie | 3–5 | 296 | Public | 1.0 mi |
| OvidElsie Middle SchoolElsie | 6–8 | 293 | Public | 2.2 mi |
| OvidElsie High SchoolElsie | 9–12 | 372 | Public | 2.2 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 Ovid Township (Clinton County), Ovid City, Middlebury, Chapin, Fairfield Township (Shiawassee County) and Greenbush Township (Clinton County).
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.