The Hoosier Athletic Conference is a ten-member IHSAA-Sanctioned conference located within Benton, Cass, Hamilton, Howard, Jasper, Tippecanoe, Tipton and White counties. The conference first began in 1947, and has been in constant competition except for the 1997-98 school year, when membership dropped to three schools. The conference added four schools from the folding Mid-Indiana Conference in 2015.
All championships before 2011-2012 school year as members of Hoosier Heartland Conference.