High School Football Conferences
CCL/ESCC Green
CCL/ESCC Purple
CCL/ESCC Red
CCL/ESCC White
- Carmel Catholic High School
- Fenwick High School
- Montini Catholic High School
- St. Laurence High School
Central Suburban North
- Highland Park High School
- Maine East High School
- Maine West High School
- Niles North High School
- Niles West High School
- Vernon Hills High School
Central Suburban South
- Deerfield High School
- Evanston Township High School
- Glenbrook North High School
- Glenbrook South High School
- Maine South High School
- New Trier High School
Chicagoland Christian
- Aurora Christian High School
- Bishop McNamara Catholic High School
- Chicago Christian High School
- Chicago Hope Academy
- Christ the King High School
- Marian Central Catholic High School
- St. Edward High School
- Wheaton Academy
DuKane
- Batavia High School
- Geneva High School
- Glenbard North High School
- Lake Park High School
- St. Charles East High School
- St. Charles North High School
- Wheaton North High School
- Wheaton Warrenville South High School
Fox Valley
- Burlington-Central High School
- Cary-Grove High School
- Crystal Lake Central High School
- Crystal Lake South High School
- Dundee-Crown High School
- Hampshire High School
- Harry D. Jacobs High School
- Huntley High School
- McHenry East High School
- McHenry West High School
- Prairie Ridge High School
Illinois Central Eight
- Coal City High School
- Herscher High School
- Lisle High School
- Manteno High School
- Peotone High School
- Reed-Custer High School
- Streator Township High School
- Wilmington High School
Interstate Eight
- Kaneland High School
- LaSalle-Peru High School
- Morris Community High School
- Ottawa Township High School
- Rochelle Township High School
- Sycamore High School
Mid-Suburban East
- Buffalo Grove High School
- Elk Grove High School
- John Hersey High School
- Prospect High School
- Rolling Meadows High School
- Wheeling High School
Mid-Suburban West
- Barrington High School
- Hoffman Estates High School
- James B. Conant High School
- Palatine High School
- Schaumburg High School
- William Fremd High School
North Suburban
- Adlai E. Stevenson High School
- Lake Forest High School
- Lake Zurich High School
- Libertyville High School
- Mundelein High School
- Warren Township High School
- Waukegan High School
- Zion-Benton Township High School
Northern Lake County
- Antioch Community High School
- Grant Community High School
- Grayslake Central High School
- Grayslake North High School
- Lakes Community High School
- North Chicago Community High School
- Round Lake High School
- Wauconda High School
Southwest Valley Blue
- Homewood-Flossmoor High School
- Lincoln-Way East High School
- Lockport Township High School
- Naperville North High School
- Neuqua Valley High School
Southwest Valley Green
- Amos Alonzo Stagg High School
- Bradley-Bourbonnais Community High School
- DeKalb High School
- Lincoln-Way Central High School
- Waubonsie Valley High School
Southwest Valley Red
- Carl Sandburg High School
- Lincoln-Way West High School
- Metea Valley High School
- Naperville Central High School
- Victor J. Andrew High School
Upstate Eight East
- Elmwood Park High School
- Fenton High School
- Glenbard East High School
- Glenbard South High School
- Riverside Brookfield High School
- West Chicago Community High School
Upstate Eight West
- Bartlett High School
- East Aurora High School
- Elgin High School
- Larkin High School
- Ridgewood High School
- South Elgin High School
- Streamwood High School
- West Aurora High School
West Suburban Gold
- Addison Trail High School
- Downers Grove South High School
- East Leyden High School
- Hinsdale South High School
- Morton High School
- Proviso East High School
- West Leyden High School
- Willowbrook High School