St. Jacob is a village in Madison County, Illinois, home to about 1,759 people across 0.8 square miles. Its ZIP code is 62281.
Homes sold for a median of $174 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. Jacob. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | St. Louis Lambert International Airport (STL)31 miles away |
|---|---|
| Closer regional airport | Scott AFB/Midamerica Airport (BLV)11 miles away |
| Nearest city of 250,000+ | St. Louis, MO25 miles away |
| Nearest city of 1 million+ | Chicago, IL243 miles away |
Straight-line distances from the center of St. Jacob; 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. Jacob had 1,358 residents in the 2020 census, up 70% since 2000.
It’s the 539th largest of 1,450 towns in Illinois by population.
Madison County grew from 64,694 residents in 1900 to 265,859 in 2020.
Madison County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 90°F in summer, and winter lows average 24°F. About 43.4 inches of rain and melted snow fall in a typical year, with about 11 inches of snow.
Source: NOAA 1991–2020 climate normals, Belleville Siu Rsch, IL weather station (13 miles away).
93,915 jobs at 5,659 businesses in Madison County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
5 doctors and other health care providers list an office in St. Jacob.
Nearest hospitals
Providers with an office here
| Mental health providers | 4 |
|---|---|
| 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.
Public schools here are run by Triad CUSD 2. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| St Jacob Elem SchoolSaint Jacob | Pre-K–5 | 262 | Public | 1.4 mi |
| Triad Middle SchoolSaint Jacob | 6–8 | 925 | 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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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.