The Corn Bowl Conference is a high school athletic conference in based north central Iowa. The conference is made up of 1A and 2A schools, the two smallest classification of schools in Iowa.
In 2000, there were eight schools in the conference. These eight were Greene, Nashua-Plainfield, North Central in Manly, Nora Springs-Rock Falls, Riceville, Rockford, Rockwell-Swaledale, and Saint Ansgar. In 2002, the league got two new members. Northwood-Kensett left the North Iowa Conference for the Corn Bowl, while SCMT in Sheffield joined from the North Star. In 2004, Greene merged with Allison-Bristow to become North Butler, remaining in the conference. In 2007, North Central and Nora Springs-Rock Falls joined together to become the Central Springs school district, dropping league membership to nine schools. The following year that number dropped to eight, as two more league schools, Rockwell-Swaledale and SCMT joined to become West Fork. The recent success of the conference includes Northwood-Kensett's state championship in men's basketball in 2006-07.