Alumni Class Reunion Sites in Illinois...
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| School | City | District | State | Mascot |
|---|---|---|---|---|
| A-c Central High School | Ashland | A-c Central | Illinois IL | Knights |
| A.a. Stagg High School | Palos Hills | A.a. Stagg | Illinois IL | Chargers |
| Abingdon High School | Abingdon | Abingdon | Illinois IL | Commandos |
| Addison Trail High School | Addison | Addison Trail | Illinois IL | Blazers |
| Adlai E. Stevenson High School | Lincolnshire | Adlai E. Stevenson | Illinois IL | Patriots |
| Alan B. Shepard High School | Palos Heights | Alan B. Shepard | Illinois IL | Astros |
| Alden-hebron High School | Hebron | Alden-hebron | Illinois IL | Green Giants |
| Aledo High School | Aledo | Aledo | Illinois IL | Green Dragons |
| Alexis High School | Alexis | Alexis | Illinois IL | Cardinals |
| Altamont High School | Altamont | Altamont | Illinois IL | Indians |
| Alton High School | Alton | Alton | Illinois IL | Redbirds |
| Alwood High School | Woodhull | Alwood | Illinois IL | Aces |
| Amboy High School | Amboy | Amboy | Illinois IL | Clippers |
| Amundsen High School | Chicago | Amundsen | Illinois IL | Vikings |
| Anna-jonesboro High School | Anna | Anna-jonesboro | Illinois IL | Wildcats |
| Annawan High School | Annawan | Annawan | Illinois IL | Braves |
| Antioch High School | Antioch | Antioch | Illinois IL | Sequoits |
| Arcola High School | Arcola | Arcola | Illinois IL | Purple Riders |
| Argenta-oreana High School | Argenta | Argenta-oreana | Illinois IL | Bombers |
| Argo High School | Summit | Argo | Illinois IL | Fighting Argonauts |
| Armstrong High School | Armstrong | Armstrong | Illinois IL | Trojans |
| Arthur High School | Arthur | Arthur | Illinois IL | Knights |
| Ashton-franklin Center High School | Ashton | Ashton-franklin Center | Illinois IL | Raiders |
| Astoria High School | Astoria | Astoria | Illinois IL | |
| Athens High School | Athens | Athens | Illinois IL | Warriors |
| Atwood Hammond High School | Atwood | Atwood Hammond | Illinois IL | Rajahs |
| Auburn High School | Auburn | Auburn | Illinois IL | Trojans |
| Austin Community High School | Chicago | Austin Community | Illinois IL | Tigers |
| Avon High School | Avon | Avon | Illinois IL | Trojans |
| Barr High School | Barr | Barr | Illinois IL | Wildcats |
| Barrington High School | Barrington | Barrington | Illinois IL | Broncos |
| Barry High School | Barry | Barry | Illinois IL | Wildcats |
| Bartlett High School | Bartlett | Bartlett | Illinois IL | Hawks |
| Batavia High School | Batavia | Batavia | Illinois IL | Bulldogs |
| Beardstown High School | Beardstown | Beardstown | Illinois IL | Tigers |
| Beecher City High School | Beecher City | Beecher City | Illinois IL | Eagles |
| Belleville East High School | Belleville | Belleville East | Illinois IL | Lancers |
| Belleville West High School | Belleville | Belleville West | Illinois IL | Maroons |
| Belvidere High School | Belvidere | Belvidere | Illinois IL | Bucs |
| Bement High School | Bement | Bement | Illinois IL | Bulldogs |
| Benton High School | Benton | Benton | Illinois IL | Rangers |
| Best Practice High School | Chicago | Best Practice | Illinois IL | Panthers |
| Bismarck-henning High School | Bismarck | Bismarck-henning | Illinois IL | Blue Devils |
| Bloom High School | Chicago Heights | Bloom | Illinois IL | Trojans |
| Bloom Trail High School | Chicago Heights | Bloom Trail | Illinois IL | Trail Blazers |
| Bloomington High School | Bloomington | Bloomington | Illinois IL | Purple Raiders |
| Blue Ridge High School | Farmer City | Blue Ridge | Illinois IL | Knights |
| Bluffs High School | Bluffs | Bluffs | Illinois IL | Bluejays |
| Bogan High School | Chicago | Bogan | Illinois IL | Bengals |
| Bolingbrook High School | Bolingbrook | Bolingbrook | Illinois IL | Raiders |
| Bowen High School | Chicago | Bowen | Illinois IL | |
| Bradley-bourbonnais High School | Bradley | Bradley-bourbonnais | Illinois IL | Boilers |
| Bremen High School | Midlothian | Bremen | Illinois IL | Braves |
| Brimfield High School | Brimfield | Brimfield | Illinois IL | Indians |
| Brooks College Prep High School | Chicago | Brooks College Prep | Illinois IL | Eagles |
| Brown County High School | Mt. Sterling | Brown County | Illinois IL | Hornets |
| Brownstown High School | Brownstown | Brownstown | Illinois IL | Bombers |
| Brussels High School | Brussels | Brussels | Illinois IL | Raiders |
| Buffalo Grove High School | Buffalo Grove | Buffalo Grove | Illinois IL | Bison |
| Bunker Hill High School | Bunker Hill | Bunker Hill | Illinois IL | Minutemen |
| Bureau Valley High School | Manlius | Bureau Valley | Illinois IL | Storms |
| Bushnell-prairie City High School | Bushnell | Bushnell-prairie City | Illinois IL | Spartans |
| Byron High School | Byron | Byron | Illinois IL | Tigers |
| Cahokia High School | Cahokia | Cahokia | Illinois IL | Comanche |
| Cairo High School | Cairo | Cairo | Illinois IL | Pilots |
| Calhoun High School | Hardin | Calhoun | Illinois IL | Warriors |
| Calumet High School | Chicago | Calumet | Illinois IL | Indians |
| Cambridge High School | Cambridge | Cambridge | Illinois IL | Vikings |
| Canton High School | Canton | Canton | Illinois IL | Little Giants |
| Carbondale High School | Carbondale | Carbondale | Illinois IL | Terriers |
| Carl Sandburg High School | Orland Park | Carl Sandburg | Illinois IL | Eagles |
| Carlinville High School | Carlinville | Carlinville | Illinois IL | Cavaliers |
| Carlyle High School | Carlyle | Carlyle | Illinois IL | Indians |
| Carmi-white County High School | Carmi | Carmi-white County | Illinois IL | Bulldogs |
| Carrier Mills-stonefort High School | Carrier Mills | Carrier Mills-stonefort | Illinois IL | Wildcats |
| Carterville High School | Carterville | Carterville | Illinois IL | Lions |
| Carthage High School | Carthage | Carthage | Illinois IL | Blueboys And Bluegirls |
| Carver High School | Chicago | Carver | Illinois IL | Challengers |
| Cary Grove High School | Cary | Cary Grove | Illinois IL | Trojans |
| Casey-westfield High School | Casey | Casey-westfield | Illinois IL | Warriors |
| Catlin High School | Catlin | Catlin | Illinois IL | Salt Fork Storm |
| Centennial High School | Champaign | Centennial | Illinois IL | Chargers |
| Central High School | Clifton | Central | Illinois IL | Comets |
| Central High School | Burlington | Central | Illinois IL | Rockets |
| Central High School | Camp Point | Central | Illinois IL | Panthers |
| Central High School | Champaign | Central | Illinois IL | Maroons |
| Central A & M High School | Moweaqua | Central A & M | Illinois IL | Raiders |
| Central Community High School | Breese | Central Community | Illinois IL | Cougars |
| Centralia High School | Centralia | Centralia | Illinois IL | Orphans |
| Century High School | Ullin | Century | Illinois IL | Centurions |
| Cerro Gordo High School | Cerro Gordo | Cerro Gordo | Illinois IL | Broncos |
| Charleston High School | Charleston | Charleston | Illinois IL | Trojans |
| Chenoa High School | Chenoa | Chenoa | Illinois IL | Redbirds |
| Chester High School | Chester | Chester | Illinois IL | Yellow Jackets |
| Chicago Academy High School | Chicago | Chicago Academy | Illinois IL | Cougars |
| Chicago Military Academy-bronzeville High School | Chicago | Chicago Military Academy-bronzeville | Illinois IL | Eagles |
| Chrisman High School | Chrisman | Chrisman | Illinois IL | Cardinals |
| Christopher High School | Christopher | Christopher | Illinois IL | Bearcats |
| Cisne High School | Cisne | Cisne | Illinois IL | Runnin' Lions |
| Cissna Park High School | Cissna Park | Cissna Park | Illinois IL | Timberwolves |
| Civic Memorial High School | Bethalto | Civic Memorial | Illinois IL | Eagles |
| Clay City High School | Clay City | Clay City | Illinois IL | Wolves |
| Clemente High School | Chicago | Clemente | Illinois IL | Wildcats |
| Clinton High School | Clinton | Clinton | Illinois IL | Maroons |
| Coal City High School | Coal City | Coal City | Illinois IL | Coalers |
| Cobden High School | Cobden | Cobden | Illinois IL | Appleknockers |
| Collinsville High School | Collinsville | Collinsville | Illinois IL | Kahoks |
| Columbia High School | Columbia | Columbia | Illinois IL | Eagles |
| Community High School | West Chicago | Community | Illinois IL | Wildcats |
| Corliss High School | Chicago | Corliss | Illinois IL | Trojans |
| Coulterville High School | Coulterville | Coulterville | Illinois IL | Eagles |
| Cowden-herrick High School | Cowden | Cowden-herrick | Illinois IL | Hornets |
| Crab Orchard High School | Marion | Crab Orchard | Illinois IL | Trojans |
| Crane Tech Prep Common High School | Chicago | Crane Tech Prep Common | Illinois IL | Cougars |
| Crescent-iroquois High School | Crescent City | Crescent-iroquois | Illinois IL | Timberwolves |
| Crete-monee High School | Crete | Crete-monee | Illinois IL | Warriors |
| Crystal Lake Central High School | Crystal Lake | Crystal Lake Central | Illinois IL | Tigers |
| Crystal Lake South High School | Crystal Lake | Crystal Lake South | Illinois IL | Gators |
| Cuba High School | Cuba | Cuba | Illinois IL | Wildcats |
| Cumberland High School | Toledo | Cumberland | Illinois IL | Pirates |
| Curie Metro High School | Chicago | Curie Metro | Illinois IL | Condors |
| Dakota High School | Dakota | Dakota | Illinois IL | Indians |
| Danville High School | Danville | Danville | Illinois IL | Vikings |
| Deer Creek-mackinaw High School | Depue | Deer Creek-mackinaw | Illinois IL | Chiefs |
| Deerfield High School | Deerfield | Deerfield | Illinois IL | |
| Dekalb High School | De Kalb | Dekalb | Illinois IL | Barbs |
| Deland-weldon High School | Deland | Deland-weldon | Illinois IL | Eagles |
| Delavan High School | Delavan | Delavan | Illinois IL | Panthers |
| Depue High School | Depue | Depue | Illinois IL | Little Giants |
| Dieterich High School | Dieterich | Dieterich | Illinois IL | Movin Maroons |
| Divernon High School | Divernon | Divernon | Illinois IL | Dragons |
| Dixon High School | Dixon | Dixon | Illinois IL | Dukes |
| Dongola High School | Dongola | Dongola | Illinois IL | Demons |
| Donovan High School | Donovan | Donovan | Illinois IL | Wildcats |
| Downers Grove North High School | Downers Grove | Downers Grove North | Illinois IL | Trojans |
| Downers Grove South High School | Downers Grove | Downers Grove South | Illinois IL | Mustangs |
| Du Quoin High School | Du Quoin | Du Quoin | Illinois IL | Indians |
| Dunbar High School | Chicago | Dunbar | Illinois IL | Mighty Men |
| Dundee-crown High School | Carpentersville | Dundee-crown | Illinois IL | Chargers |
| Dunlap High School | Dunlap | Dunlap | Illinois IL | Eagles |
| Dupo High School | Dupo | Dupo | Illinois IL | Tigers |
| Durand High School | Durand | Durand | Illinois IL | Bulldogs |
| Dusable High School | Chicago | Dusable | Illinois IL | Panthers |
| Dwight High School | Dwight | Dwight | Illinois IL | Trojans |
| Earlville High School | Earlville | Earlville | Illinois IL | Red Raiders |
| East High School | Aurora | East | Illinois IL | Tomcats |
| East Alton-wood River High School | Wood River | East Alton-wood River | Illinois IL | Oilers |
| East Aurora High School | Aurora | East Aurora | Illinois IL | Tomcats |
| East Dubuque High School | East Dubuque | East Dubuque | Illinois IL | Warriors |
| East Leyden High School | Franklin Park | East Leyden | Illinois IL | Eagles |
| East Park Baptist Academy High School | Boody | East Park Baptist Academy | Illinois IL | Eagles |
| East Peoria High School | Peoria | East Peoria | Illinois IL | Raiders |
| East Richland High School | Olney | East Richland | Illinois IL | Tigers |
| East St. Louis High School | East St. Louis | East St. Louis | Illinois IL | Flyers |
| Eastland High School | Lanark | Eastland | Illinois IL | Cougars |
| Edinburg North High School | Edinburg | Edinburg North | Illinois IL | Wildcats |
| Edwards High School | Albion | Edwards | Illinois IL | Lions |
| Edwardsville High School | Edwardsville | Edwardsville | Illinois IL | Tigers |
| Effingham High School | Effingham | Effingham | Illinois IL | Flaming Hearts |
| Egyptian High School | Tamms | Egyptian | Illinois IL | Pharaohs |
| Eisenhower High School | Decatur | Eisenhower | Illinois IL | Panthers |
| Eisenhower High School | Blue Island | Eisenhower | Illinois IL | Cardinals |
| El Paso High School | El Paso | El Paso | Illinois IL | Titans |
| Eldorado High School | Eldorado | Eldorado | Illinois IL | Eagles |
| Elgin High School | Elgin | Elgin | Illinois IL | Maroons |
| Elk Grove High School | Elk Grove Village | Elk Grove | Illinois IL | Grenadiers |
| Elmwood High School | Elmwood | Elmwood | Illinois IL | Trojans |
| Elmwood Park High School | Elmwood Park | Elmwood Park | Illinois IL | Tigers |
| Elverado High School | Elkville | Elverado | Illinois IL | Falcons |
| Englewood High School | Chicago | Englewood | Illinois IL | Eagles |
| Erie High School | Erie | Erie | Illinois IL | Cardinals |
| Eureka High School | Eureka | Eureka | Illinois IL | Hornets |
| Evanston Township High School | Evanston | Evanston Township | Illinois IL | Wildkits |
| Evergreen Park High School | Evergreen Park | Evergreen Park | Illinois IL | Mustangs |
| Fairfield Community High School | Fairfield | Fairfield Community | Illinois IL | Mules |
| Farmington High School | Farmington | Farmington | Illinois IL | Farmers |
| Fenger High School | Chicago | Fenger | Illinois IL | Titans |
| Fenton High School | Bensenville | Fenton | Illinois IL | Bison |
| Fieldcrest High School | Minonk | Fieldcrest | Illinois IL | Knights |
| Fisher High School | Fisher | Fisher | Illinois IL | Bunnies |
| Flanagan High School | Flanagan | Flanagan | Illinois IL | Falcons |
| Flora High School | Flora | Flora | Illinois IL | Wolves |
| Foreman High School | Chicago | Foreman | Illinois IL | Hornets |
| Forreston High School | Forreston | Forreston | Illinois IL | Cardinals |
| Frankfort High School | West Frankfort | Frankfort | Illinois IL | Redbirds |
| Franklin High School | Franklin | Franklin | Illinois IL | Flashes |
| Freeburg Community High School | Freeburg | Freeburg Community | Illinois IL | Midgets |
| Freeport High School | Freeport | Freeport | Illinois IL | Pretzels |
| Fulton High School | Fulton | Fulton | Illinois IL | Steamers |
| Galatia High School | Galatia | Galatia | Illinois IL | Bearcats |
| Galena | Galena | Galena | Pirates | |
| Galesburg | Galesburg | Galesburg | Silver Streaks | |
| Gallatin | Junction | Gallatin | Hawks | |
| Galva | Galva | Galva | Wildcats | |
| Gardner-south Wilmington Township | Gardner | Gardner-south Wilmington Township | Panthers | |
| Gcms | Gibson City | Gcms | Falcons | |
| Geneva | Geneva | Geneva | Vikings | |
| Genoa-kingston | Genoa | Genoa-kingston | Cogs | |
| George W. Collins | Chicago | George W. Collins | Cobras | |
| Georgetown-ridge Farm | Georgetown | Georgetown-ridge Farm | Buffaloes | |
| Gibson City-melvin-sibley | Gibson City | Gibson City-melvin-sibley | Falcons | |
| Gillespie | Gillespie | Gillespie | Miners | |
| Girard | Girard | Girard | Big Red | |
| Glenbard East | Lombard | Glenbard East | Rams | |
| Glenbard North | Carol Stream | Glenbard North | Panthers | |
| Glenbard South | Glen Ellyn | Glenbard South | Raiders | |
| Glenbard West | Glen Ellyn | Glenbard West | Hilltoppers | |
| Glenbrook North | Northbrook | Glenbrook North | Spartans | |
| Glenbrook South | Glenview | Glenbrook South | Titans | |
| Glenwood | Chatham | Glenwood | Titans | |
| Goreville | Goreville | Goreville | Blackcats | |
| Granite City | Granite City | Granite City | Warriors | |
| Grant Community | Fox Lake | Grant Community | Bulldogs | |
| Grant Park | Grant Park | Grant Park | Dragons | |
| Grayslake Central | Grayslake | Grayslake Central | Rams | |
| Grayville | Grayville | Grayville | Bison | |
| Greenfield | Greenfield | Greenfield | Tigers | |
| Greenview | Greenview | Greenview | Bulldogs | |
| Greenville | Greenville | Greenville | Comets | |
| Gridley | Gridley | Gridley | Redskins | |
| Griggsville-perry | Griggsville | Griggsville-perry | Tornadoes | |
| Guilford | Rockford | Guilford | Vikings | |
| Gurdon S Hubbard | Chicago | Gurdon S Hubbard | Greyhounds | |
| H. L. Richards | Oak Lawn | H. L. Richards | Bulldogs | |
| H.d. Jacobs | Algonquin | H.d. Jacobs | Golden Eagles | |
| Hall | Spring Valley | Hall | Red Devils | |
| Hamilton | Hamilton | Hamilton | Cardinals | |
| Hamilton County | Mcleansboro | Hamilton County | Foxes | |
| Hampshire | Hampshire | Hampshire | Whip-purs | |
| Hancock | Chicago | Hancock | Eagles | |
| Hardin County | Elizabethtown | Hardin County | Cougars | |
| Harlan | Chicago | Harlan | Falcons | |
| Harlem | Machesney Park | Harlem | Huskies | |
| Harper | Chicago | Harper | Cardinals | |
| Harrisburg | Harrisburg | Harrisburg | Bulldogs | |
| Hartsburg-emden | Hartsburg | Hartsburg-emden | Stags | |
| Harvard | Harvard | Harvard | Hornets | |
| Havana | Havana | Havana | Ducks | |
| Henry-senachwine | Henry | Henry-senachwine | Mallards | |
| Heritage | Broadlands | Heritage | Hawks | |
| Herrin | Herrin | Herrin | Tigers | |
| Herscher | Herscher | Herscher | Tigers | |
| Heyworth | Heyworth | Heyworth | Hornets | |
| Hiawatha | Kirkland | Hiawatha | Hawks | |
| Highland | Highland | Highland | Dawgs | |
| Highland Park | Highland Park | Highland Park | Giants | |
| Hillcrest | Country Club Hills | Hillcrest | Hawks | |
| Hillsboro | Hillsboro | Hillsboro | Hiltoppers | |
| Hinckley-big Rock | Hinckley | Hinckley-big Rock | Royals | |
| Hinsdale Central | Hinsdale | Hinsdale Central | Red Devils | |
| Hinsdale South | Darien | Hinsdale South | Hornets | |
| Hirsch Metropolitan | Chicago | Hirsch Metropolitan | Huskies | |
| Hoffman Estates | Hoffman Estates | Hoffman Estates | Hawks | |
| Homewood-flossmoor | Flossmoor | Homewood-flossmoor | Vikings | |
| Hononegah | Rockton | Hononegah | Indians | |
| Hoopeston Area | Hoopeston | Hoopeston Area | Cornjerkers | |
| Huntley | Huntley | Huntley | Red Raiders | |
| Hutsonville | Hutsonville | Hutsonville | Tigers | |
| Hyde Park Academy | Chicago | Hyde Park Academy | Thunderbirds | |
| Illini Bluffs | Glasford | Illini Bluffs | Tigers | |
| Illini Central | Mason City | Illini Central | Cougars | |
| Illinois Math And Science Academy | Aurora | Illinois Math And Science Academy | Titans | |
| Illinois Valley Central | Chillicothe | Illinois Valley Central | Grey Ghosts | |
| Indian Creek | Shabbona | Indian Creek | Timberwolves | |
| Iroquois West | Gilman | Iroquois West | Raiders | |
| Irving Crown | Carpentersville | Irving Crown | Vikings | |
| J B Conant | Hoffman Estates | J B Conant | Cougars | |
| J D Darnall | Geneseo | J D Darnall | Maple Leafs | |
| J Sterling Morton East | Cicero | J Sterling Morton East | Mustangs | |
| J. Sterling Morton West | Berwyn | J. Sterling Morton West | Mustangs | |
| Jacksonville | Jacksonville | Jacksonville | Crimsons | |
| Jamaica | Sidell | Jamaica | Storm | |
| Jefferson | Rockford | Jefferson | J-hawks | |
| Jersey Community | Jerseyville | Jersey Community | Panthers | |
| John Hersey | Arlington Heights | John Hersey | ||
| Johnsburg | Johnsburg | Johnsburg | Skyhawks | |
| Johnston City | Johnston City | Johnston City | Indians | |
| Joliet Central | Joliet | Joliet Central | Steelmen | |
| Joliet West | Joliet | Joliet West | Tigers | |
| Jones College Prep | Chicago | Jones College Prep | Eagles | |
| Joppa | Joppa | Joppa | Rangers | |
| Juarez | Chicago | Juarez | Eagles | |
| Julian | Chicago | Julian | Jaguars | |
| Kaneland | Maple Park | Kaneland | Knights | |
| Kankakee | Kankakee | Kankakee | Fighting Kays | |
| Kansas | Kansas | Kansas | Titans | |
| Kelvyn Park | Chicago | Kelvyn Park | Panthers | |
| Kennedy | Chicago | Kennedy | Crusaders | |
| Kenwood | Chicago | Kenwood | Broncos | |
| Kewanee | Kewanee | Kewanee | Boilermakers | |
| Knoxville | Knoxville | Knoxville | Blue Bullets | |
| La Harpe | La Harpe | La Harpe | Eagles | |
| La Moille | La Moille | La Moille | Lions | |
| Lake Forest | Lake Forest | Lake Forest | Scouts | |
| Lake Park | Roselle | Lake Park | Lancers | |
| Lake View | Chicago | Lake View | Wildcats | |
| Lake Zurich | Lake Zurich | Lake Zurich | Bears | |
| Lane Tech | Chicago | Lane Tech | Indians | |
| Lanphier | Springfield | Lanphier | Lions | |
| Larkin | Elgin | Larkin | Royals | |
| Lasalle-peru | Lasalle | Lasalle-peru | Cavaliers | |
| Lawrenceville | Lawrenceville | Lawrenceville | Indians | |
| Lebanon | Lebanon | Lebanon | Greyhounds | |
| Leland | Leland | Leland | Panthers | |
| Lemont | Lemont | Lemont | Indians | |
| Lena-winslow | Lena | Lena-winslow | Panthers | |
| Leroy | Leroy | Leroy | Panthers | |
| Lewistown | Lewistown | Lewistown | Indians | |
| Lexington | Lexington | Lexington | Minutemen | |
| Liberty | Liberty | Liberty | Eagles | |
| Libertyville | Libertyville | Libertyville | Wildcats | |
| Limestone | Bartonville | Limestone | Rockets | |
| Lincoln | Lincoln | Lincoln | Railsplitters | |
| Lincoln Park | Chicago | Lincoln Park | Lions | |
| Lincoln-way Central | New Lenox | Lincoln-way Central | Knights | |
| Lincoln-way East | Frankfort | Lincoln-way East | Griffins | |
| Lincolnwood | Raymond | Lincolnwood | Lancers | |
| Lindblom | Chicago | Lindblom | Eagles | |
| Lisle | Lisle | Lisle | Lions | |
| Litchfield | Litchfield | Litchfield | Purple Panthers | |
| Lockport | Lockport | Lockport | Porters | |
| Lovejoy Technology Academy | Lovejoy | Lovejoy Technology Academy | Wildcats | |
| Lovington | Lovington | Lovington | Panthers | |
| Lowpoint-washburn | Washburn | Lowpoint-washburn | Wildcats | |
| Lyons Township | Lagrange | Lyons Township | Lions | |
| Macarthur | Decatur | Macarthur | Generals | |
| Macomb | Macomb | Macomb | Bombers | |
| Madison | Madison | Madison | Trojans | |
| Mahomet-seymour | Mahomet | Mahomet-seymour | Bulldogs | |
| Maine East | Park Ridge | Maine East | Blue Demons | |
| Maine South | Park Ridge | Maine South | Hawks | |
| Maine West | Des Plaines | Maine West | Warriors | |
| Manley | Chicago | Manley | Wildcats | |
| Manteno | Manteno | Manteno | Panthers | |
| Manual | Peoria | Manual | Rams | |
| Marengo | Marengo | Marengo | Indians | |
| Marion | Marion | Marion | Wildcats | |
| Marissa | Marissa | Marissa | Meteors | |
| Maroa-forsyth | Maroa | Maroa-forsyth | Trojans | |
| Marshall | Marshall | Marshall | Lions | |
| Marshall Metropolitan | Chicago | Marshall Metropolitan | Commandos | |
| Martinsville | Bluestreaks | Martinsville | Bluestreaks | |
| Mascoutah | Mascoutah | Mascoutah | Indians | |
| Massac County | Metropolis | Massac County | Patriots | |
| Mather | Chicago | Mather | Rangers | |
| Mattoon | Mattoon | Mattoon | Green Wave | |
| Mchenry | Mchenry | Mchenry | Warriors | |
| Mchenry East | Mchenry | Mchenry East | Warriors | |
| Mendel | Chicago | Mendel | Monarchs | |
| Mendota Township | Mendota | Mendota Township | Trojans | |
| Meredosia-chambersburg | Meredosia | Meredosia-chambersburg | Indians | |
| Meridian | Mounds | Meridian | Bobcats | |
| Meridian Senior High School | Macon | Meridian Senior High School | Hawks | |
| Metamora | Metamora | Metamora | Redbirds | |
| Midland | Varna | Midland | Timberwolves | |
| Midwest Central | Manito | Midwest Central | Raiders | |
| Milford | Milford | Milford | Bearcats | |
| Milledgeville | Milledgeville | Milledgeville | Missiles | |
| Minooka Community | Minooka | Minooka Community | Indians | |
| Moline | Moline | Moline | Maroons | |
| Momence | Momence | Momence | Redskins | |
| Monmouth Roseville | Monmouth | Monmouth Roseville | Titans | |
| Monticello | Monticello | Monticello | Sages | |
| Morgan Park | Chicago | Morgan Park | Mustangs | |
| Morris | Morris | Morris | Redskins | |
| Morrison | Morrison | Morrison | Mustangs | |
| Morrisonville | Morrisonville | Morrisonville | Mohawks | |
| Morton | Morton | Morton | Potters | |
| Morton West | Berwyn | Morton West | Falcons | |
| Mose Vines Preparatory Academy | Chicago | Mose Vines Preparatory Academy | Spartans | |
| Mount Carmel | Mount Carmel | Mount Carmel | Golden Aces | |
| Mount Pulaski | Mount Pulaski | Mount Pulaski | Hilltoppers | |
| Mt Olive | Mt Olive | Mt Olive | Wildcats | |
| Mt. Carroll | Mt. Carroll | Mt. Carroll | Hawks | |
| Mt. Vernon | Mt. Vernon | Mt. Vernon | Rams | |
| Mt. Zion | Mt. Zion | Mt. Zion | Braves | |
| Mulberry Grove | Mulberry Grove | Mulberry Grove | Aces | |
| Mundelein | Mundelein | Mundelein | Mustangs | |
| Murphysboro | Murphysboro | Murphysboro | Red Devils | |
| Naperville Central | Naperville | Naperville Central | Redhawks | |
| Naperville North | Naperville | Naperville North | Huskies | |
| Nashville Community | Nashville | Nashville Community | Hornets | |
| Nauvoo-colusa | Nauvoo | Nauvoo-colusa | Vikings | |
| Neoga | Neoga | Neoga | Indians | |
| Neuqua Valley | Naperville | Neuqua Valley | Wildcats | |
| New Athens | New Athens | New Athens | Yellow Jackets | |
| New Berlin | New Berlin | New Berlin | Pretzels | |
| New Trier Township | Winnetka | New Trier Township | Trevians | |
| Newark | Newark | Newark | Norsemen | |
| Newton Community | Newton | Newton Community | Eagles | |
| Niantic-harristown | Niantic | Niantic-harristown | Indians | |
| Niles North | Skokie | Niles North | Vikings | |
| Niles West | Skokie | Niles West | Wolves | |
| Noble Street Charter | Chicago | Noble Street Charter | Golden Tigers | |
| Nokomis | Nokomis | Nokomis | Redskins | |
| Normal | Normal | Normal | Ironmen | |
| Normal Community West | Normal | Normal Community West | Wildcats | |
| Norris City-omaha-enfield | Norris City | Norris City-omaha-enfield | Fighting Cardinals | |
| North Boone | Poplar Grove | North Boone | Vikings | |
| North Chicago | North Chicago | North Chicago | Warhawks | |
| North Clay | Louisville | North Clay | Cardinals | |
| North Greene | White Hall | North Greene | Spartans | |
| Northside College Prep | Chicago | Northside College Prep | Mustangs | |
| Northwestern | Palmyra | Northwestern | Wildcats | |
| O'fallon | O'fallon | O'fallon | Panthers | |
| Oak Forest | Oak Forest | Oak Forest | Bengals | |
| Oak Lawn | Oak Lawn | Oak Lawn | Spartans | |
| Oak Park River Forest | Oak Park | Oak Park River Forest | Huskies | |
| Oakland | Oakland | Oakland | Oaks | |
| Oakwood | Fithian | Oakwood | Comets | |
| Oblong | Oblong | Oblong | Panthers | |
| Odin | Odin | Odin | Eagles | |
| Ohio Community | Ohio | Ohio Community | Bulldogs | |
| Okaw Valley | Bethany | Okaw Valley | Timberwolves | |
| Okawville | Okawville | Okawville | Rockets | |
| Olympia | Stanford | Olympia | Spartans | |
| Orangeville | Orangeville | Orangeville | Broncos | |
| Oregon | Oregon | Oregon | Hawks | |
| Orion | Orion | Orion | Chargers | |
| Oswego | Oswego | Oswego | Panthers | |
| Oswego East | Oswego | Oswego East | Wolves | |
| Ottawa Township | Ottawa | Ottawa Township | Pirates | |
| Palatine | Palatine | Palatine | Pirates | |
| Pana | Pana | Pana | Panthers | |
| Paris | Paris | Paris | Tigers | |
| Patoka | Patoka | Patoka | Warriors | |
| Paw Paw | Paw Paw | Paw Paw | Bulldogs | |
| Pawnee | Pawnee | Pawnee | Indians | |
| Paxton-buckley-loda | Paxton | Paxton-buckley-loda | Panthers | |
| Payton College Prep | Chicago | Payton College Prep | Grizzlies | |
| Pearl City | Pearl City | Pearl City | Wolves | |
| Pecatonica | Pecatonica | Pecatonica | Indians | |
| Pekin | Pekin | Pekin | Dragons | |
| Peoria | Peoria | Peoria | Lions | |
| Peoria Heights | Peoria Heights | Peoria Heights | Patriots | |
| Peotone | Peotone | Peotone | Blue Devils | |
| Phillips Academy | Chicago | Phillips Academy | Wildcats | |
| Phoenix Military Academy | Chicago | Phoenix Military Academy | Firebirds | |
| Pinckneyville Community | Pinckneyville | Pinckneyville Community | Panthers | |
| Pittsfield | Pittsfield | Pittsfield | Saukees | |
| Plainfield | Plainfield | Plainfield | Wildcats | |
| Plainfield North | Plainfield | Plainfield North | Tigers | |
| Plainfield South | Plainfield | Plainfield South | Cougars | |
| Plano | Plano | Plano | Reapers | |
| Pleasant | Pleasant Hill | Pleasant | Wolves | |
| Pleasant Plains | Pleasant Plains | Pleasant Plains | Cardinals | |
| Polo Community | Polo | Polo Community | Marcos | |
| Pontiac | Pontiac | Pontiac | Indians | |
| Pope | Golconda | Pope | Pirates | |
| Porta | Petersburg | Porta | Bluejays | |
| Prairie Central | Fairbury | Prairie Central | Hawks | |
| Prairie Ridge | Prairie Ridge | Prairie Ridge | Wolves | |
| Princeton | Princeton | Princeton | Tigers | |
| Prophetstown | Prophetstown | Prophetstown | Prophets | |
| Prospect | Mt. Prospect | Prospect | Knights | |
| Prosser | Chicago | Prosser | Falcons | |
| Proviso East | Maywood | Proviso East | Pirates | |
| Proviso West | Hillside | Proviso West | Panthers | |
| Putnam County | Granville | Putnam County | Panthers | |
| Quincy | Quincy | Quincy | Blue Devils | |
| R O W V A | Oneida | R O W V A | Tigers | |
| Ramsey | Ramsey | Ramsey | Mighty Rams | |
| Rantoul Township | Rantoul | Rantoul Township | Eagles | |
| Reavis | Burbank | Reavis | Rams | |
| Red Bud | Red Bud | Red Bud | Musketeers | |
| Red Hill | Bridgeport | Red Hill | Salukis | |
| Reed-custer | Braidwood | Reed-custer | Comets | |
| Rich Central | Olympia Fields | Rich Central | Olympians | |
| Rich East Campus | Park Forest | Rich East Campus | Rockets | |
| Rich South | Richton Park | Rich South | Stars | |
| Richmond-burton | Richmond | Richmond-burton | Rockets | |
| Richwoods | Peoria | Richwoods | Knights | |
| Ridgeview | Colfax | Ridgeview | Mustangs | |
| Ridgewood | Norridge | Ridgewood | Rebels | |
| River Ridge | Hanover | River Ridge | Wildcats | |
| Riverdale | Port Byron | Riverdale | Rams | |
| Riverside-brookfield | Riverside | Riverside-brookfield | Bulldogs | |
| Riverton | Riverton | Riverton | Hawks | |
| Roanoke-benson | Roanoke | Roanoke-benson | Rockets | |
| Robeson | Chicago | Robeson | Raiders | |
| Robinson | Robinson | Robinson | Maroons | |
| Rochelle Township | Rochelle | Rochelle Township | Hubs | |
| Rochester | Rochester | Rochester | Rockets | |
| Rock Falls Township | Rock Falls | Rock Falls Township | Rockets | |
| Rock Island | Rock Island | Rock Island | Rocks | |
| Rockford East | Rockford | Rockford East | E-rabs | |
| Rockridge | Taylor Ridge | Rockridge | Rockets | |
| Rolling Meadows | Rolling Meadows | Rolling Meadows | Mustangs | |
| Romeoville | Romeoville | Romeoville | Spartans | |
| Roodhouse | Roodhouse | Roodhouse | Railroaders | |
| Roosevelt | Chicago | Roosevelt | Rough Riders | |
| Rossville-alvin | Rossville | Rossville-alvin | Bobcats | |
| Round Lake | Round Lake | Round Lake | Panthers | |
| Roxana | Roxana | Roxana | Shells | |
| Rushville | Rushville | Rushville | Rockets | |
| Salem | Salem | Salem | Wildcats | |
| Sandoval | Sandoval | Sandoval | Blackhawks | |
| Sandwich | Sandwich | Sandwich | Indians | |
| Savanna | Savanna | Savanna | Indians | |
| Scales Mound | Scales Mound | Scales Mound | Hornets | |
| Schaumburg | Schaumburg | Schaumburg | Saxons | |
| Schurz | Chicago | Schurz | Bulldogs | |
| Seneca Township | Seneca | Seneca Township | Fighting Irish | |
| Senn | Chicago | Senn | Bulldogs | |
| Serena | Serena | Serena | Huskers | |
| Sesser-valier | Sesser | Sesser-valier | Red Devils | |
| Seymour | Payson | Seymour | Indians | |
| Shawnee | Wolf Lake | Shawnee | Redskins | |
| Shelbyville | Shelbyville | Shelbyville | Rams | |
| Shelbyville/stewardson-strasburg | Shelbyville | Shelbyville/stewardson-strasburg | Rams | |
| Sherrard | Sherrard | Sherrard | Tigers | |
| Shiloh | Hume | Shiloh | Raiders | |
| Simeon | Chicago | Simeon | Wolverines | |
| Somonauk | Somonauk | Somonauk | Bobcats | |
| South Beloit | South Beloit | South Beloit | Sobos | |
| South Central | Farina | South Central | Cougars | |
| South Elgin | South Elgin | South Elgin | Storm | |
| South Fork | Kincaid | South Fork | Ponies | |
| South Shore | Chicago | South Shore | Tars | |
| Southeastern | Augusta | Southeastern | Suns | |
| Southern | Stronghurst | Southern | Rebels | |
| Southwestern | Piasa | Southwestern | Piasa Birds | |
| Sparta | Sparta | Sparta | Bulldogs | |
| Spoon River Valley | London Mills | Spoon River Valley | Vikings | |
| Springfield | Springfield | Springfield | Senators | |
| Springfield Southeast | Springfield | Springfield Southeast | ||
| St Anne | St. Anne | St Anne | Cardinals | |
| St Elmo | St Elmo | St Elmo | Eagles | |
| St Joseph-ogden | St Joseph | St Joseph-ogden | Spartans | |
| St. Charles | St. Charles | St. Charles | Fighting Saints | |
| St. Charles East | St. Charles | St. Charles East | Fighting Saints | |
| St. Charles North | St. Charles | St. Charles North | North Stars | |
| St. John The Baptist | Johnsburg | St. John The Baptist | Sonics | |
| Stark County | Toulon | Stark County | Rebels | |
| Staunton | Staunton | Staunton | Bulldogs | |
| Steeleville | Steeleville | Steeleville | Warriors | |
| Steinmetz | Chicago | Steinmetz | Streaks | |
| Stephen Decatur | Decatur | Stephen Decatur | Runnin Reds | |
| Sterling | Sterling | Sterling | Warriors | |
| Stewardson-strasburg | Strasburg | Stewardson-strasburg | Comets | |
| Stillman Valley | Stillman Valley | Stillman Valley | Cardinals | |
| Stockton | Stockton | Stockton | Blackhawks | |
| Streamwood | Streamwood | Streamwood | Sabres | |
| Streator Township | Streator | Streator Township | Bulldogs | |
| Sullivan | Chicago | Sullivan | Tigers | |
| Sullivan-okaw Valley | Sullivan | Sullivan-okaw Valley | Redskins | |
| Sycamore | Sycamore | Sycamore | Spartans | |
| T. F. North | Calumet City | T. F. North | Meteors | |
| Taft | Chicago | Taft | Eagles | |
| Taylorville | Taylorville | Taylorville | Tornadoes | |
| Teutopolis | Teutopolis | Teutopolis | Wooden Shoes | |
| The Chicago Academy For The Arts | Chicago | The Chicago Academy For The Arts | ||
| Thomas Kelly | Chicago | Thomas Kelly | Trojans | |
| Thompsonville | Thompsonville | Thompsonville | Tigers | |
| Thomson | Thomson | Thomson | Trojans | |
| Thornridge | Dolton | Thornridge | Falcons | |
| Thornridge | Dolton | Thornridge | Wildcats | |
| Thornton Fractional South | Lansing | Thornton Fractional South | Rebels | |
| Thornton Township | Harvey | Thornton Township | Wildcats | |
| Thornwood | South Holland | Thornwood | Thunderbirds | |
| Tilden | Chicago | Tilden | Blue Devils | |
| Tinley Park | Tinley Park | Tinley Park | Titans | |
| Tremont | Tremont | Tremont | Turks | |
| Tri-city | Buffalo | Tri-city | Tornadoes | |
| Tri-point | Cullom | Tri-point | Chargers | |
| Tri-valley | Downs | Tri-valley | Vikings | |
| Triad | Troy | Triad | Knights | |
| Trico | Campbell Hall | Trico | Pioneers | |
| Triopia | Concord | Triopia | Trojans | |
| Tuscola | Tuscola | Tuscola | Warriors | |
| Union | Biggsville | Union | Yankees | |
| United Township | East Moline | United Township | Panthers | |
| Unity | Tolono | Unity | Rockets | |
| University | Normal | University | Pioneers | |
| University | Urbana | University | Illineks | |
| Urbana | Urbana | Urbana | Tigers | |
| Valmeyer | Valmeyer | Valmeyer | Pirates | |
| Vandalia Community | Vandalia | Vandalia Community | Vandals | |
| Vernon Hills | Vernon Hills | Vernon Hills | Cougars | |
| Victor J Andrew | Tinley Park | Victor J Andrew | Thunderbolts | |
| Vienna | Vienna | Vienna | Eagles | |
| Villa Grove | Villa Grove | Villa Grove | Blue Devils | |
| Virden | Virden | Virden | Bulldogs | |
| Virginia | Virginia | Virginia | Redbirds | |
| Von Steuben | Chicago | Von Steuben | Panthers | |
| Waltonville | Waltonville | Waltonville | Spartans | |
| Warren | Monmouth | Warren | Warriors | |
| Warren | Warren | Warren | Warriors | |
| Warren Township | Gurnee | Warren Township | ||
| Warrensburg-latham | Warrensburg-latham | Warrensburg-latham | Cardinals | |
| Warsaw | Warsaw | Warsaw | Wildcats | |
| Washington Community | Washington | Washington Community | Panthers | |
| Waterloo | Waterloo | Waterloo | Bulldogs | |
| Waubonsie Valley | Aurora | Waubonsie Valley | Warriors | |
| Wauconda | Wauconda | Wauconda | Bulldogs | |
| Waukegan | Waukegan | Waukegan | Bulldogs | |
| Waukegan West | Waukegan | Waukegan West | Raiders | |
| Waverly | Waverly | Waverly | Scotties | |
| Wayne City | Wayne City | Wayne City | Indians | |
| Webber | Bluford | Webber | Trojans | |
| Wells Community Academy | Chicago | Wells Community Academy | Raiders | |
| Wesclin | Trenton | Wesclin | Warriors | |
| West Aurora | Aurora | West Aurora | Blackhawks | |
| West Carroll | Savanna | West Carroll | Thunder | |
| West Leyden | Northlake | West Leyden | Eagles | |
| West Pike | Kinderhook | West Pike | Cardinals | |
| West Prairie | Sciota | West Prairie | Cyclones | |
| West Richland | Noble | West Richland | Wildcats | |
| Westinghouse | Chicago | Westinghouse | Warriors | |
| Westmer | Joy | Westmer | Golden Eagles | |
| Westmont | Westmont | Westmont | Sentinels | |
| Westville | Westville | Westville | Tigers | |
| Wethersfield | Kewanee | Wethersfield | Flying Geese | |
| Wheaton North | Wheaton | Wheaton North | Falcons | |
| Wheaton Warrenville | Wheaton | Wheaton Warrenville | Tigers | |
| Wheeling | Wheeling | Wheeling | Wildcats | |
| William Fremd | Palatine | William Fremd | Vikings | |
| Williamsfield | Williamsfield | Williamsfield | Bombers | |
| Williamsville | Williamsville | Williamsville | Bullets | |
| Willowbrook | Villa Park | Willowbrook | Warriors | |
| Wilmington | Wilmington | Wilmington | Wildcats | |
| Winchester | Winchester | Winchester | Wildcats | |
| Windsor | Windsor | Windsor | Blue Devils | |
| Winnebago | Winnebago | Winnebago | Indians | |
| Woodland | Streator | Woodland | Warriors | |
| Woodlawn | Woodlawn | Woodlawn | Cardinals | |
| Woodruff | Peoria | Woodruff | Warriors | |
| Woodstock | Woodstock | Woodstock | Blue Streaks | |
| York Community | Elmhurst | York Community | Dukes | |
| Yorkville | Yorkville | Yorkville | Foxes | |
| Yorkwood | Monmouth | Yorkwood | Golden Bears | |
| Zeigler-royalton | Zeigler | Zeigler-royalton | Tornadoes | |
| Zion-benton | Zion | Zion-benton | Fighting Zee Bees |