Collinsville
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Outdoors in Collinsville
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About Collinsville
City in Illinois, United StatesCollinsville is a city located mainly in Madison County and partially in St. Clair County, Illinois, United States. As of the 2020 census, the city had a population of 24,366. Collinsville is approximately 14 miles (23 km) east of St. Louis, Missouri, and is part of that city's Metro East area. Collinsville is the location of Cahokia Mounds State Historic Site, a National Historic Landmark and UNESCO World Heritage Site. This prehistoric urban complex is estimated to have had a population of thousands at its peak, long before European exploration in the area. The city is also known for the Brooks Catsup Bottle Water Tower, the world's largest ketchup bottle, and is billed as the world's hor…
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
How Collinsville ranks
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Housing in Collinsville
The median sale price was $184,000 in May 2026.
A strong seller's market
Safety in Collinsville
Safety Grade C+
Collinsville reports more crime per resident than most U.S. towns we grade: about 61% report less.
Health in Collinsville
Compared with Illinois
of 32 measures CDC estimates. The other 29 are too close to call.
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Where Collinsville is
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