Ortonville is a city in Big Stone County, Minnesota, home to about 2,028 people across 4.2 square miles. Its ZIP code is 56278.
Homes sold for a median of $144 per square foot in the three months ending August 2026, a seller’s market.
Mostly Ortonville; also Big Stone and Otrey
Each card is that ZIP code’s whole market, including any part outside Ortonville. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Ortonville’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)161 miles away |
|---|---|
| Closer regional airport | Watertown Regional Airport (ATY)44 miles away |
| Nearest city of 250,000+ | Minneapolis, MN157 miles away |
| Nearest city of 1 million+ | Chicago, IL501 miles away |
Straight-line distances from the center of Ortonville; 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.
It’s the 334th largest of 2,727 towns in Minnesota by population.
Big Stone County grew from 8,731 residents in 1900 to 5,166 in 2020.
Big Stone County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 81°F in summer, and winter lows average 4°F. About 25.4 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Milbank, SD weather station (11 miles away).
1,372 jobs at 178 businesses in Big Stone County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
54 doctors and other health care providers list an office in Ortonville.
Nearest hospitals
Providers with an office here
| Primary care doctors | 10 |
|---|---|
| Specialist doctors | 1 |
| Dentists | 2 |
| Nurse practitioners and physician assistants | 9 |
| Mental health providers | 4 |
| Physical and occupational therapists | 23 |
| Optometrists | 3 |
| Chiropractors | 2 |
| Pharmacies | 3 |
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 (4 nearby)
Libraries (1 nearby)
Museums
Counts are within about 1.5 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 Ortonville Public Schools, Big Stone City School District 25-1. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Knoll ElementaryOrtonville | Pre-K–6 | 282 | Public | 1.7 mi |
| Contract - 02Ortonville | K–12 | — | Public | 1.7 mi |
| Ortonville SecondaryOrtonville | 7–12 | 228 | 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 Big Stone, Otrey, Prior, Ortonville Township, Odessa Township, Yellow Bank and Artichoke.
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.