Champaign (English: ) is a city in Champaign County, Illinois, United States. The city is 135 miles (217 km) south of Chicago, 124 miles (200 km) west of Indianapolis, Indiana, and 178 mi (286 km) northeast of St. Louis, Missouri.
The United States Census Bureau estimates the city was home to 87,432 people as of July 1, 2017. Champaign is the tenth-most populous city in Illinois, and the state's fourth-most populous city outside the Chicago metropolitan area. It is included in the Champaign–Urbana metropolitan area. Champaign is notable for sharing the campus of the University of Illinois at Urbana–Champaign with its sister city of Urbana. Champaign is also home to Parkland College which serves about 18,000 students during the academic year. Due to the university and a number of well known technology startup companies, it is often referred to as the hub, or a significant landmark, of the Silicon Prairie. Champaign houses offices for the Fortune 500 companies Abbott, Archer Daniels Midland (ADM), Caterpillar, Deere & Company, Dow Chemical Company, IBM, and State Farm. Champaign was founded in 1855, when the Illinois Central Railroad laid its rail track two miles (3 km) west of downtown Urbana.