| Argo Community High School | Summit | Northeast | 2017 |
| Arthur-Lovington-Atwood-Hammond High School | Arthur | Kickapoo | 2017 |
| Aurora West High School | Aurora | North Central | 2017 |
| Belleville West High School | Belleville | Kaskaskia | 2017 |
| Bogan High School | Chicago | Chicago | 2017 |
| Canton High School | Canton | Illinois Valley | 2017 |
| Chicago Academy High School | Chicago | Chicago | 2017 |
| Coulterville High School | Coulterville | Little Egypt | 2017 |
| Downers Grove South High School | Downers Grove | Northeast | 2017 |
| East Peoria High School | East Peoria | Hopewell | 2017 |
| East St. Louis Senior High School | East St. Louis | Kaskaskia | 2017 |
| Edinburg High School | Edinburg | Eastern | 2017 |
| Elk Grove High School | Elk Grove Village | Northeast | 2017 |
| Elmwood High School | Elmwood | Hopewell | 2017 |
| Evergreen Park High School | Evergreen Park | Northeast | 2017 |
| Flanagan-Cornell High School | Flanagan | Prairie 8 | 2017 |
| Foreman High School | Chicago | Chicago | 2017 |
| Galesburg High School | Galesburg | Hopewell | 2017 |
| Galva High School | Galva | Hopewell | 2017 |
| Gillespie High School | Gillespie | Kaskaskia | 2017 |
| Glenbrook North High School | Northbrook | Northeast | 2017 |
| Hales Franciscan High School | Chicago | Chicago | 2017 |
| Illini Bluffs High School | Glasford | Hopewell | 2017 |
| Kankakee High School | Kankakee | Prairie 8 | 2017 |
| Kewanee High School | Kewanee | Blackhawk | 2017 |
| Lakes Community High School | Lake Villa | Northeast | 2017 |
| Lebanon High School | Lebanon | Kaskaskia | 2017 |
| Libertyville High School | Libertyville | Northeast | 2017 |
| Limestone Community High School | Bartonville | Hopewell | 2017 |
| Lincoln High School | Lincoln | Cenois | 2017 |
| Marengo High School | Marengo | North Central | 2017 |
| Marian Central Catholic High School | Woodstock | North Central | 2017 |
| Mater Dei High School | Breese | Kaskaskia | 2017 |
| Mother McAuley High School | Chicago | Chicago | 2017 |
| Mt. Olive High School | Mt. Olive | Kaskaskia | 2017 |
| Oak Lawn Community High School | Oak Lawn | Northeast | 2017 |
| Oswego High School | Oswego | North Central | 2017 |
| Paxton-Buckley-Loda High School | Paxton | Kickapoo | 2017 |
| Pleasant Hill High School | Pleasant Hill | Illinois Valley | 2017 |
| Prairie Ridge High School | Crystal Lake | North Central | 2017 |
| Prospect High School | Mt. Prospect | Northeast | 2017 |
| Prosser High School | Chicago | Chicago | 2017 |
| Reavis High School | Burbank | Northeast | 2017 |
| Red Bud High School | Red Bud | Kaskaskia | 2017 |
| Rich East High School | Park Forest | Northeast | 2017 |
| Riverside-Brookfield High School | Riverside | Northeast | 2017 |
| Rockford Christian High School | Rockford | North Central | 2017 |
| Rosary High School | Aurora | North Central | 2017 |
| Salt Fork High School | Catlin | Kickapoo | 2017 |
| South Fork High School | Kincaid | Eastern | 2017 |
| St. Anne Community High School | St. Anne | Prairie 8 | 2017 |
| St. Viator High School | Arlington Heights | Northeast | 2017 |
| Stockton High School | Stockton | Northwest | 2017 |
| Sycamore High School | Sycamore | North Central | 2017 |
| Tri-Point High School | Cullom | Prairie 8 | 2017 |
| University High School | Chicago | Chicago | 2017 |
| Waldorf High School | Chicago | Chicago | 2017 |
| Walsh Math and Science Academy | Chicago | Chicago | 2017 |
| Wauconda High School | Wauconda | Northeast | 2017 |
| Waukegan High School | Waukegan | Northeast | 2017 |
| Waverly High School | Waverly | Illinois Valley | 2017 |
| Woodstock High School | Woodstock | North Central | 2017 |