St. Clair is a city in Blue Earth County, Minnesota, home to about 710 people across 0.7 square miles. Its ZIP code is 56080, and parts of 56001 are in St. Clair too.
Homes sold for a median of $134 per square foot in the three months ending August 2026, a seller’s market.
All in St. Clair
Mostly Mankato; part is in St. Clair
Each card is that ZIP code’s whole market, including any part outside St. Clair. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up St. Clair’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)63 miles away |
|---|---|
| Nearest city of 250,000+ | Minneapolis, MN67 miles away |
| Nearest city of 1 million+ | Chicago, IL351 miles away |
Straight-line distances from the center of St. Clair; 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.
St. Clair had 750 residents in the 2020 census, down 9% since 2000.
It’s the 805th largest of 2,727 towns in Minnesota by population.
Blue Earth County grew from 32,263 residents in 1900 to 69,112 in 2020.
Blue Earth 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 6°F. About 33.9 inches of rain and melted snow fall in a typical year, with about 39 inches of snow.
Source: NOAA 1991–2020 climate normals, Mankato, MN weather station (7 miles away).
35,883 jobs at 1,992 businesses in Blue Earth 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 St. Clair.
Nearest hospitals
Providers with an office here
| Mental health providers | 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.
Grocery stores
Pharmacies
Counts are within about 1 mile 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 St. Clair Public School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| St. Clair ElementarySaint Clair | Pre-K–6 | 411 | Public | 2.5 mi |
| St. Clair SecondarySaint Clair | 7–12 | 409 | Public | 2.5 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 Mankato, Mankato Township, South Bend, Decoria, Lime, Skyline and Rapidan.
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.