Bloomington High School is a member of the Big 12 Conference.  This conference is divided into East and West Divisions.  Members of the East Division are Champaign Centennial, Champaign Central, Danville, Mattoon, Rantoul, and Urbana.  Members of the West Division are Bloomington, Decatur Eisenhower, Decatur MacArthur, Normal Community, and Normal Community West.  The conference conducts regularly scheduled events in athletics, speech, and music.