1800History
At its peak about 1200 CE, Cahokia had a population of 20,000-30,000, more than any city in the present-day United States until after 1800.
1812Government
Collinsville was subsequently settled by the Cook family and by a group of German-American settlers who arrived by Conestoga wagon in 1812 from Pennsylvania.
1885Architecture
Built in 1885, the City Hall is still used today.
1916History
Designed in 1916 by architect Robert G.
1918History
On April 5, 1918, the mob numbering up to 300 men took Robert Prager from his home and paraded him through the streets barefoot and wrapped in an American flag, forcing him to s...
1925Architecture
Fairmont Park Racetrack features a one-mile oval dirt track and opened in 1925.
1937Architecture
To the west on Main Street, the Collinsville Public Library is a colonial-style brick building with an inviting circular stone walkway; the first section was completed in 1937.
1967History
Additional wings were added in 1967 and 1980.
1982History
Louis Cardinals 1982 World Series Champ
Alexandra Picatto, former child actress; born in Collinsville
Robert Prager, German immigrant who was lynched in Collinsville during Worl...
1983History
The Italian Fest has been held annually since 1983 and is located in uptown Collinsville on Main Street.
2006History
Louis Derby in 2006, along with other weekly live races.
2014History
The bottle along with the property was put up for sale for $500,000.00 on July 12, 2014.
2020History
== Demographics ==
=== 2020 census ===
=== 2010 census ===
As of the census of 2010, there were 25,579 people, 10,458 households, and 6,672 families residing in the city.