East St. Louis East St. Louis Senior High School SIUE East St. Louis Charter High School Saline County Carrier Mills-Stonefort High School, Carrier Mills Eldorado High School, Eldorado Galatia High School, Galatia Harrisburg High School, Harrisburg Sangamon County Auburn High School, Auburn Glenwood High School, Chatham New Berlin High School, New Berlin Pawnee High School, Pawnee Pleasant Plains High School, Pleasant Plains Riverton High School, Riverton Rochester High School, Rochester Tri-City High School, Buffalo Williamsville High School, Williamsville Springfield Calvary Academy Douglas/Prep High School Lanphier High School Lutheran High School Sacred Heart-Griffin High School Springfield High School Springfield Southeast High School Defunct Divernon High School, Divernon (c. 1900–2007) Ursuline Academy, Springfield (1857–2007) Schuyler County Rushville-Industry High School, Rushville Scott County Bluffs High School, Bluffs Winchester High School, Winchester Shelby County Central A&M High School, Moweaqua Cowden-Herrick High School, Cowden Shelbyville High School, Shelbyville Stewardson-Strasburg High School, Strasburg Windsor Jr/Sr High School, Windsor Stark County Stark County High School, Toulon Stephenson County Dakota Junior Senior High School, Dakota Lena-Winslow High School, Lena Orangeville High School, Orangeville Pearl City High School, Pearl City Freeport Aquin Central Catholic High School Freeport High School Tazewell County Deer Creek-Mackinaw High School, Mackinaw Delavan High School, Delavan East Peoria Community High School, East Peoria Morton High School, Morton Pekin Community High School, Pekin Tremont High School, Tremont Washington Community High School, Washington Union County Anna-Jonesboro Community High School, Anna Cobden High School, Cobden Dongola High School, Dongola Shawnee High School, Wolf Lake Vermilion County Armstrong Township High School, Armstrong Bismarck Henning High School, Bismarck Georgetown-Ridge Farm High School, Georgetown Hoopeston Area High School, Hoopeston Oakwood High School, Fithian Salt Fork High School, Catlin Westville High School, Westville Danville Danville High School First Baptist Christian School Schlarman Academy Defunct Henning High School, Henning (1914–1964) Catlin High School, Catlin Jamaica High School, Sidell Rossville-Alvin High School, Rossville Wabash County Mount Carmel High School, Mount Carmel Warren County Monmouth-Roseville High School, Monmouth United Senior High School, Monmouth Washington County Nashville Community High School, Nashville Okawville High School, Okawville Wayne County Fairfield Community High School, Fairfield Wayne City High School, Wayne City White County Carmi-White County High School, Carmi Grayville Jr/Sr High School, Grayville Norris City-Omaha-Enfield High School, Norris City Whiteside County Erie High School, Erie Fulton High School, Fulton Morrison High School, Morrison Newman Central Catholic High School, Sterling Prophetstown High School, Prophetstown Rock Falls High School, Rock Falls