▁Conference ▁Lake ▁Sh ore ▁Athlet ic ▁Conference ▁Lincoln ▁Tra il ▁Conference ▁Little ▁Ill ini ▁Conference ▁Little ▁O ka w ▁Valley ▁Conference ▁Little ▁Ten ▁Conference ▁Lincoln ▁Pra irie ▁Conference ▁Metro ▁Sub urban ▁Conference ▁Metropolitan ▁P rep ▁Conference ▁Mid - Ill ini ▁Conference ▁Mid land ▁Tra il ▁Conference ▁Mid - Sub urban ▁League ▁( contains ▁two ▁divisions ) ▁Mississippi ▁Valley ▁Conference ▁MS M ▁Conference ▁National ▁Tra il ▁Conference ▁No ble ▁Athlet ic ▁Conference ▁North ▁Sub urban ▁E ight ▁Conference ▁N ort he astern ▁Athlet ic ▁Conference ▁Northern ▁Illinois ▁Conference ▁( N IC - 1 0 ) ▁Northern ▁Illinois ▁Big ▁ 1 2 ▁Conference ▁( contains ▁two ▁divisions ) ▁Northern ▁Lake ▁County ▁Conference ▁ ▁North west ▁Up state ▁Ill ini ▁Conference ▁( contains ▁two ▁divisions ) ▁Pi ke ▁County ▁Conference ▁Pra irie ▁State ▁Conference ▁Pra iri eland ▁Conference ▁River ▁Valley ▁Conference ▁Sang amo ▁Conference ▁Sang am on ▁Valley ▁Conference ▁South ▁Central ▁Conference ▁South ▁Egypt ian ▁Conference ▁South ▁Seven ▁Conference ▁South ▁Sub urban ▁Conference ▁Southern ▁Illinois ▁River - to - R iver ▁Conference ▁( with ▁Mississippi ▁and ▁Ohio ▁River ▁divisions ) ▁South land ▁Athlet ic ▁Conference ▁South west ▁Pra irie ▁Conference ▁South west ▁Sub urban ▁Conference ▁South western ▁Conference ▁Three ▁R ivers ▁Conference ▁Tom ah awk ▁Conference ▁( Ill inois ) ▁Tri - Count y ▁Conference ▁Up state ▁E ight ▁Conference ▁Verm il ion ▁Valley ▁Conference ▁West ▁Central ▁Conference ▁West ▁Sub urban ▁Conference ▁( contains ▁two ▁divisions ) ▁Western ▁Big ▁ 6 ▁Conference ▁Western ▁Illinois ▁Valley ▁Conference ▁( contains ▁two ▁divisions ) ▁ ▁Form er ▁Con ferences