Collinsville is a city in Madison County, Illinois, home to about 24,031 people across 15 square miles. Its ZIP code is 62234.
Homes sold for a median of $127 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 Collinsville. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Collinsville’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Collinsville well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | St. Louis Lambert International Airport (STL)21 miles away |
|---|---|
| Closer regional airport | Scott AFB/Midamerica Airport (BLV)13 miles away |
| Nearest city of 250,000+ | St. Louis, MO14 miles away |
| Nearest city of 1 million+ | Chicago, IL249 miles away |
Straight-line distances from the center of Collinsville; 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.
Collinsville had 24,366 residents in the 2020 census, down 1% since 2000.
It’s the 94th 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 89°F in summer, and winter lows average 24°F. About 41 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Cahokia St Louis Ap, IL weather station (12 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).
131 doctors and other health care providers list an office in Collinsville.
Nearest hospitals
Providers with an office here
| Primary care doctors | 13 |
|---|---|
| Specialist doctors | 3 |
| Dentists | 19 |
| Nurse practitioners and physician assistants | 15 |
| Mental health providers | 49 |
| Physical and occupational therapists | 18 |
| Optometrists | 7 |
| Chiropractors | 7 |
| Pharmacies | 10 |
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 (12 nearby)
Grocery stores (6 nearby)
Pharmacies (2 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Theaters and performance venues (1 nearby)
Counts are within about 2.5 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.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Collinsville CUSD 10, Madison ROE. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| John A Renfro Elementary SchoolCollinsville | Pre-K–4 | 498 | Public | 1.0 mi |
| Kreitner Elem SchoolCollinsville | Pre-K–4 | 378 | Public | 3.5 mi |
| Webster Elementary SchoolCollinsville | Pre-K–4 | 357 | Public | 1.0 mi |
| Summit Elementary SchoolCollinsville | K–4 | 113 | Public | 0.9 mi |
| Twin Echo Elem SchoolCollinsville | K–4 | 222 | Public | 2.4 mi |
| Dorris Intermediate SchCollinsville | 4–6 | 871 | Public | 1.1 mi |
| Collinsville Middle SchoolCollinsville | 7–8 | 894 | Public | 2.4 mi |
| Collinsville High SchoolCollinsville | 9–12 | 1,956 | Public | 2.9 mi |
| Collinsville Area Career CtrCollinsville | 11–12 | — | Career and Technical | 2.9 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Good Shepherd LutheranCollinsville | Pre-K–8 | 263 | Lutheran Church–Missouri Synod | 0.7 mi |
| Holy Cross Lutheran Church & SchoolCollinsville | Pre-K–8 | 157 | Lutheran Church–Missouri Synod | 1.2 mi |
| Ss Peter & Paul SchoolCollinsville | Pre-K–8 | 136 | Roman Catholic | 0.8 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.
Buying or selling around Collinsville? Tell us what you need and when. No agents advertise here yet, so we’ll keep your request for up to 30 days and send it to local agents who join. No obligation, and you choose who to work with.
Loading map…
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.