
Collinsville, Illinois
Collinsville 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.[3] Collinsville is approximately 14 miles (23 km) east of St. Louis, Missouri, and is part of that city's Metro East area.[5]
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,[6] the world's largest ketchup bottle, and is billed as the world's horseradish capital.[7]
Geography[edit]
Collinsville is located mainly in southern Madison County at 38°40′28″N 89°59′43″W / 38.67444°N 89.99528°W (38.674398, -89.995402),[11] approximately 12 miles (19 km) by air or 14 miles (23 km) by road east-northeast of downtown St Louis. Two portions of the city extend south into St. Clair County. Collinsville is bordered to the north by Maryville, to the west by Pontoon Beach and Fairmont City, and to the south by Caseyville. The 90W longitude line passes through Collinsville, west of the city center.
According to the U.S. Census Bureau, Collinsville has a total area of 15.26 square miles (39.5 km2), of which 15.08 square miles (39.1 km2) are land and 0.19 square miles (0.49 km2), or 1.22%, are water.[1] The city is drained to the northwest by Schoolhouse Branch and to the south by Canteen Creek, both of which flow west into the Mississippi River valley in the western part of the city.
Transportation[edit]
Roads[edit]
Interstates 55 and 70 run concurrently through the north side of Collinsville, with access from Exits 9 through 15, while Interstate 255 passes through the west side of the city, with access from Exits 24 and 26. Illinois Route 159 passes through the center of Collinsville as Morrison Avenue and Vandalia Street, leading north 10 miles (16 km) to Edwardsville and south 5 miles (8 km) to Fairview Heights, while Route 157 (Bluff Road) crosses the west side of the city, leading north 5 miles (8 km) to Glen Carbon and south 3 miles (5 km) to Caseyville. U.S. Route 66 in Illinois originally passed through Collinsville.