Freeburg is a village in St. Clair County, Illinois, home to about 4,592 people across 6.8 square miles. Its ZIP code is 62243, and parts of 62221 are in Freeburg too.
Homes sold for a median of $143 per square foot in the three months ending August 2026, a buyer’s market.
Mostly Freeburg; also Belleville and Smithton
Mostly Shiloh; part is in Freeburg
Each card is that ZIP code’s whole market, including any part outside Freeburg. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Freeburg’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)32 miles away |
|---|---|
| Closer regional airport | Scott AFB/Midamerica Airport (BLV)9 miles away |
| Nearest city of 250,000+ | St. Louis, MO22 miles away |
| Nearest city of 1 million+ | Chicago, IL262 miles away |
Straight-line distances from the center of Freeburg; 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.
Freeburg had 4,582 residents in the 2020 census, up 18% since 2000.
It’s the 346th largest of 1,450 towns in Illinois by population.
St. Clair County grew from 86,685 residents in 1900 to 257,400 in 2020.
St. Clair 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 (7 miles away).
72,871 jobs at 4,973 businesses in St. Clair County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2022 (private employers; jobs counted where people work).
24 doctors and other health care providers list an office in Freeburg.
Nearest hospitals
Providers with an office here
| Primary care doctors | 4 |
|---|---|
| Specialist doctors | 1 |
| Dentists | 2 |
| Nurse practitioners and physician assistants | 3 |
| Mental health providers | 2 |
| Physical and occupational therapists | 8 |
| Optometrists | 1 |
| Chiropractors | 3 |
| 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 (1 nearby)
Grocery stores
Libraries
Museums
Counts are within about 2 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.
Established in 1836.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Freeburg CCSD 70, Freeburg CHSD 77. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Freeburg Primary CenterFreeburg | Pre-K–2 | 244 | Public | 2.1 mi |
| Freeburg Elem SchoolFreeburg | 3–8 | 508 | Public | 2.0 mi |
| Freeburg Community High SchFreeburg | 9–12 | 689 | Public | 1.8 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| St Joseph Catholic SchoolFreeburg | Pre-K–8 | 46 | Roman Catholic | 1.7 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Shiloh, Belleville, Smithton and Rentchler.
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.