The Corn Belt Conference was a high school athletic conference in the Illinois High School Association (IHSA), based in Central Illinois.
The conference consisted of medium-sized and small high schools.
[1] The Corn Belt Conference was originally formed in 1950 by Clinton, Normal Community, Pontiac Township, Trinity (later Central Catholic), and University High Schools.
[2][3] Eureka High School left the Corn Belt Conference for the Heart of Illinois Conference after the 2015–2016 school year.
U-High and Mahomet-Seymour departed for the Central State Eight Conference and Apollo Conference respectively in the 2017–18 school year.