Over the first half century of the Illinois High School Football Playoffs, DuPage County high schools have made 134 appearances in the state semifinals-- 89 from public high schools and 45 from private ones.
dupagepolicyjournal.com
Between 1974 and 2024, 1,360 teams statewide have qualified for the IHSA football semifinals, 1,029 of which were from public high schools, or 76 percent.
All told, 356 different Illinois high schools have had a team that has made the semifinals-- 53 of which have been private, or 15 percent.
Of 678 team state final appearances, 482 have been public high schools (71 percent) and of 339 state champions, 213 (63 percent) have been public.
Schools with the most IHSA football semifinal appearances in state history are Chicago Mt. Carmel (30), Joliet Catholic (25), East St. Louis, Sr. (22), Providence Catholic (19), Maroa-Forsyth (18), Loyola Academy (18), Springfield Sacred Heart Griffin (16), Geneseo (16), Morris (16), Wheaton-Warrenville South (15), Montini Catholic (14), Metamora (14), DuQuoin (14), St. Rita (13), Tolono Unity (13), Rochester (13), Maine South (12), Mt Carmel Ill. (12), Bishop McNamara (12), Newman Central Catholic (11), Driscoll Catholic (11), Arcola (11), Rockford Boylan (11), and Lake Zurich (11).