St. Peter is a village in Fayette County, Illinois, home to about 338 people across 0.5 square miles. Its ZIP code is 62880.
Homes sold for a median of $79 per square foot in the three months ending August 2026, a seller’s market.
Each card is that ZIP code’s whole market, including any part outside St. Peter. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up St. Peter’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | St. Louis Lambert International Airport (STL)82 miles away |
|---|---|
| Closer regional airport | Scott AFB/Midamerica Airport (BLV)57 miles away |
| Nearest city of 250,000+ | St. Louis, MO76 miles away |
| Nearest city of 1 million+ | Chicago, IL214 miles away |
Straight-line distances from the center of St. Peter; 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. Peter had 322 residents in the 2020 census, down 17% since 2000.
It’s the 1049th largest of 1,450 towns in Illinois by population.
Fayette County grew from 28,065 residents in 1900 to 21,488 in 2020.
Fayette County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 87°F in summer, and winter lows average 21°F. About 41.2 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Brownstown 4 Sw, IL weather station (8 miles away).
4,556 jobs at 477 businesses in Fayette County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
3 doctors and other health care providers list an office in St. Peter.
Nearest hospitals
Providers with an office here
| Specialist doctors | 1 |
|---|---|
| Physical and occupational therapists | 1 |
| Chiropractors | 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.
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| St Peter's Lutheran SchoolSaint Peter | Pre-K–8 | 43 | Lutheran Church–Missouri Synod | 0.5 mi |
Source: U.S. Department of Education, NCES: Common Core of Data for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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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.