Oslo is a city in Marshall County, Minnesota, home to about 260 people across 0.4 square miles. Its ZIP code is 56744.
Homes sold for a median of $171 per square foot in the three months ending August 2026, a buyer’s market.
Mostly Oslo; also Higdem and Oak Park
Each card is that ZIP code’s whole market, including any part outside Oslo. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)295 miles away |
|---|---|
| Closer regional airport | Grand Forks International Airport (GFK)18 miles away |
| Nearest city of 250,000+ | Minneapolis, MN289 miles away |
| Nearest city of 1 million+ | Chicago, IL637 miles away |
Straight-line distances from the center of Oslo; 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.
Oslo had 239 residents in the 2020 census, down 31% since 2000.
It’s the 1601st largest of 2,727 towns in Minnesota by population.
Marshall County grew from 15,698 residents in 1900 to 9,040 in 2020.
Marshall 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 -5°F. About 23 inches of rain and melted snow fall in a typical year, with about 44 inches of snow.
Source: NOAA 1991–2020 climate normals, Argyle, MN weather station (16 miles away).
1,525 jobs at 259 businesses in Marshall 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 Oslo.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 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 Higdem, Oak Park, Big Woods, Esther and Fork.
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.