The conference was formed in 2006 from members of the Midstate and Sangamon Valley conferences.[1]Eureka High School joined the conference in 2016 from the Corn Belt Conference. The conference is divided into large and small divisions with Eureka, El Paso-Gridley, Fieldcrest, Deer Creek Mackinaw, Tri-Valley, and Ridgeview composing the large division and GCMS, Tremont, Heyworth, Le Roy, Fisher, and Flanagan-Cornell composing the small division.[2] Blue Ridge was a part of the Small Division until 2018, when it left for the Little Okaw Valley Conference in 2018.
^Randy, Sharer (20 August 2006). "Schedulers take common sense approach; League tourneys to use 'McLean County' moniker". Pantagraph. Pantagraph Publishing Co. ProQuest252630359.
