| Abingdon-Avon High School | Abingdon | Hopewell | 2025 |
| Altamont High School | Altamont | Eastern | 2025 |
| Amboy High School | Amboy | Northwest | 2025 |
| Antioch High School | Antioch | Northeast | 2025 |
| Argo Community High School | Summit | Northeast | 2025 |
| Armstrong High School | Armstrong | Kickapoo | 2025 |
| Arthur-Lovington-Atwood-Hammond High School | Arthur | Kickapoo | 2025 |
| Beecher High School | Beecher | Northeast | 2025 |
| Belleville East High School | Belleville | Kaskaskia | 2025 |
| Belvidere North High School | Belvidere | North Central | 2025 |
| Benton High School | Benton | Little Egypt | 2025 |
| Bloom High School | Chicago Heights | Northeast | 2025 |
| Bradley-Bourbonnais High School | Bradley | Prairie 8 | 2025 |
| Brown County High School | Mt. Sterling | Illinois Valley | 2025 |
| Brownstown High School | Brownstown | Eastern | 2025 |
| Bunker Hill High School | Bunker Hill | Kaskaskia | 2025 |
| Calhoun High School | Hardin | Kaskaskia | 2025 |
| Cambridge High School | Cambridge | Blackhawk | 2025 |
| Camp Point Central High School | Camp Point | Illinois Valley | 2025 |
| Capital Area Career Center | Springfield | Cenois | 2025 |
| Carmi-White County High School | Carmi | Little Egypt | 2025 |
| Carrier Mills-Stonefort High School | Carrier Mills | Little Egypt | 2025 |
| Carterville High School | Carterville | Little Egypt | 2025 |
| Centennial High School | Champaign | Kickapoo | 2025 |
| Central High School | Burlington | North Central | 2025 |
| Cerro Gordo High School | Cerro Gordo | Cenois | 2025 |
| Charleston High School | Charleston | Eastern | 2025 |
| Cisne High School | Cisne | Eastern | 2025 |
| Civic Memorial High School | Bethalto | Kaskaskia | 2025 |
| Clay City High School | Clay City | Eastern | 2025 |
| Cobden High School | Cobden | Little Egypt | 2025 |
| College Preparatory School of America | Lombard | Northeast | 2025 |
| Collinsville High School | Collinsville | Kaskaskia | 2025 |
| Columbia High School | Columbia | Kaskaskia | 2025 |
| Coulterville High School | Coulterville | Little Egypt | 2025 |
| Crab Orchard High School | Marion | Little Egypt | 2025 |
| Crystal Lake Central High School | Crystal Lake | North Central | 2025 |
| Dakota High School | Dakota | Northwest | 2025 |
| Delavan High School | Delavan | Hopewell | 2025 |
| Dixon High School | Dixon | Northwest | 2025 |
| Dunlap High School | Dunlap | Hopewell | 2025 |
| Dupo High School | Dupo | Kaskaskia | 2025 |
| DuQuoin High School | DuQuoin | Little Egypt | 2025 |
| Dwight High School | Dwight | Prairie 8 | 2025 |
| East Alton-Wood River High School | Wood River | Kaskaskia | 2025 |
| East St. Louis Senior High School | East St. Louis | Kaskaskia | 2025 |
| Edwardsville High School | Edwardsville | Kaskaskia | 2025 |
| Eisenhower High School | Blue Island | Northeast | 2025 |
| Eldorado High School | Eldorado | Little Egypt | 2025 |
| Elmwood Park High School | Elmwood Park | Northeast | 2025 |
| Eureka High School | Eureka | Hopewell | 2025 |
| Evergreen Park High School | Evergreen Park | Northeast | 2025 |
| Fairfield Community High School | Fairfield | Eastern | 2025 |
| Fenton High School | Bensenville | Northeast | 2025 |
| Franklin High School | Franklin | Illinois Valley | 2025 |
| Freeburg High School | Freeburg | Kaskaskia | 2025 |
| Gallatin County High School | Junction | Little Egypt | 2025 |
| Geneva High School | Geneva | North Central | 2025 |
| Georgetown-Ridge Farm High School | Georgetown | Kickapoo | 2025 |
| Gibault Catholic High School | Waterloo | Kaskaskia | 2025 |
| Glenbard South High School | Glen Ellyn | Northeast | 2025 |
| Glenbrook North High School | Northbrook | Northeast | 2025 |
| Grayslake North High School | Grayslake | Northeast | 2025 |
| Greenville High School | Greenville | Kaskaskia | 2025 |
| Griggsville-Perry High School | Griggsville | Illinois Valley | 2025 |
| Guilford High School | Rockford | North Central | 2025 |
| Hamilton County High School | McLeansboro | Little Egypt | 2025 |
| Harrisburg High School | Harrisburg | Little Egypt | 2025 |
| Heritage High School | Broadlands | Kickapoo | 2025 |
| Hillcrest High School | Country Club Hills | Northeast | 2025 |
| Homewood-Flossmoor High School | Flossmoor | Northeast | 2025 |
| Hoopeston Area High School | Hoopeston | Kickapoo | 2025 |
| Huntley High School | Huntley | North Central | 2025 |
| Hutsonville High School | Hutsonville | Eastern | 2025 |
| IC Catholic Prep | Elmhurst | Northeast | 2025 |
| Illini Central High School | Mason City | Hopewell | 2025 |
| Illinois Math and Science Academy | Aurora | North Central | 2025 |
| Illinois School for the Visually Impaired | Jacksonville | Illinois Valley | 2025 |
| Indian Creek High School | Shabbona | North Central | 2025 |
| Iroquois West High School | Gilman | Prairie 8 | 2025 |
| Jefferson High School | Rockford | North Central | 2025 |
| Johnsburg High School | Johnsburg | North Central | 2025 |
| Joliet Catholic Academy | Joliet | Prairie 8 | 2025 |
| Jones College Prep | Chicago | Chicago | 2025 |
| Kankakee High School | Kankakee | Prairie 8 | 2025 |
| Kewanee High School | Kewanee | Blackhawk | 2025 |
| Lake Forest High School | Lake Forest | Northeast | 2025 |
| LaSalle-Peru High School | LaSalle | Prairie 8 | 2025 |
| Lebanon High School | Lebanon | Kaskaskia | 2025 |
| Leland High School | Leland | Prairie 8 | 2025 |
| Lena-Winslow High School | Lena | Northwest | 2025 |
| Leyden High School | Franklin Park | Northeast | 2025 |
| Liberty High School | Liberty | Illinois Valley | 2025 |
| Lincolnwood High School | Raymond | Cenois | 2025 |
| Lyons Township High School | LaGrange | Northeast | 2025 |
| MacArthur High School | Decatur | Cenois | 2025 |
| Macomb High School | Macomb | Illinois Valley | 2025 |
| Marmion Academy | Aurora | North Central | 2025 |
| Maryville Christian School | Maryville | Kaskaskia | 2025 |
| Mascoutah High School | Mascoutah | Kaskaskia | 2025 |
| Mendota High School | Mendota | Prairie 8 | 2025 |
| Meridian High School | Mounds | Hopewell | 2025 |
| Midwest Central High School | Manito | Hopewell | 2025 |
| Minooka Community High School | Minooka | Prairie 8 | 2025 |
| Moline High School | Moline | Blackhawk | 2025 |
| Momence High School | Momence | Prairie 8 | 2025 |
| Morris Community High School | Morris | Prairie 8 | 2025 |
| Morrisonville High School | Morrisonville | Cenois | 2025 |
| Morton High School | Morton | Hopewell | 2025 |
| Mother McAuley High School | Chicago | Chicago | 2025 |
| Mt. Vernon Township High School | Mt. Vernon | Little Egypt | 2025 |
| New Berlin High School | New Berlin | Cenois | 2025 |
| Newark High School | Newark | Prairie 8 | 2025 |
| Normal Community High School | Normal | Cenois | 2025 |
| Northside College Prep High School | Chicago | Chicago | 2025 |
| Northwestern High School | Palmyra | Kaskaskia | 2025 |
| O'Fallon High School | O'Fallon | Kaskaskia | 2025 |
| Oak Lawn Community High School | Oak Lawn | Northeast | 2025 |
| Oak Park and River Forest High School | Oak Park | Northeast | 2025 |
| Odin High School | Odin | Kaskaskia | 2025 |
| Okawville High School | Okawville | Kaskaskia | 2025 |
| Olympia High School | Stanford | Cenois | 2025 |
| Orion High School | Orion | Blackhawk | 2025 |
| Oswego High School | Oswego | North Central | 2025 |
| Paris High School | Paris | Eastern | 2025 |
| Pawnee High School | Pawnee | Cenois | 2025 |
| Paxton-Buckley-Loda High School | Paxton | Kickapoo | 2025 |
| Pittsfield High School | Pittsfield | Illinois Valley | 2025 |
| Pope County High School | Golconda | Little Egypt | 2025 |
| Prairie Central High School | Fairbury | Prairie 8 | 2025 |
| Prairie Ridge High School | Crystal Lake | North Central | 2025 |
| Princeton High School | Princeton | Blackhawk | 2025 |
| Proviso East High School | Maywood | Northeast | 2025 |
| Quincy Senior High School | Quincy | Illinois Valley | 2025 |
| Rantoul High School | Rantoul | Kickapoo | 2025 |
| Reavis High School | Burbank | Northeast | 2025 |
| Red Bud High School | Red Bud | Kaskaskia | 2025 |
| Red Hill High School | Bridgeport | Eastern | 2025 |
| Ridgewood High School | Norridge | Northeast | 2025 |
| Rock Island High School | Rock Island | Blackhawk | 2025 |
| Rosary College Prep | Aurora | North Central | 2025 |
| Round Lake High School | Round Lake | Northeast | 2025 |
| Roycemore High School | Evanston | Northeast | 2025 |
| Sangamon Valley High School | Niantic | Cenois | 2025 |
| Schaumburg High School | Schaumburg | Northeast | 2025 |
| Shelbyville High School | Shelbyville | Eastern | 2025 |
| SIUE Charter School | Edwardsville | Kaskaskia | 2025 |
| Somonauk High School | Somonauk | North Central | 2025 |
| South Central High School | Farina | Eastern | 2025 |
| South Elgin High School | South Elgin | North Central | 2025 |
| South Fork High School | Kincaid | Eastern | 2025 |
| Springfield High School | Springfield | Cenois | 2025 |
| St. Anthony High School | Effingham | Eastern | 2025 |
| St. Francis High School | Wheaton | Northeast | 2025 |
| St. Joseph-Ogden High School | St. Joseph | Kickapoo | 2025 |
| St. Rita of Cascia High School | Chicago | Chicago | 2025 |
| St. Viator High School | Arlington Heights | Northeast | 2025 |
| Stark County High School | Toulon | Hopewell | 2025 |
| Sterling High School | Sterling | Northwest | 2025 |
| Stevenson High School | Lincolnshire | Northeast | 2025 |
| Thornton Fractional North High School | Calumet City | Northeast | 2025 |
| Tinley Park High School | Tinley Park | Northeast | 2025 |
| Tremont High School | Tremont | Hopewell | 2025 |
| Tri-Point High School | Cullom | Prairie 8 | 2025 |
| Trico High School | Campbell Hill | Little Egypt | 2025 |
| Trinity Oaks Christian Academy | Cary | Northeast | 2025 |
| United High School | Monmouth | Blackhawk | 2025 |
| Unity High School | Tolono | Kickapoo | 2025 |
| Urbana High School | Urbana | Kickapoo | 2025 |
| Vienna High School | Vienna | Little Egypt | 2025 |
| Villa Grove High School | Villa Grove | Kickapoo | 2025 |
| Wauconda High School | Wauconda | Northeast | 2025 |
| Waukegan High School | Waukegan | Northeast | 2025 |
| West Carroll High School | Savanna | Northwest | 2025 |
| Wethersfield High School | Kewanee | Blackhawk | 2025 |
| Wilmington High School | Wilmington | Prairie 8 | 2025 |
| Windsor High School | Windsor | Eastern | 2025 |
| Woodstock North High School | Woodstock | North Central | 2025 |
| York High School | Elmhurst | Northeast | 2025 |