List of high schools in Illinois

Adams County

• Central High School, Camp Point
• Liberty High School, Liberty
• Payson-Seymour High School, Payson
• Quincy Notre Dame High School, Quincy
• Quincy Senior High School, Quincy
• Unity High School, Mendon

  Alexander County

• Cairo Junior/Senior High School, Cairo
• Egyptian Senior High School, Tamms

  Bond County

• Greenville High School, Greenville
• Mulberry Grove High School

  Boone County

• Belvidere High School, Belvidere
• Belvidere North High School, Belvidere
• North Boone High School, Poplar Grove

  Brown County

• Brown County High School, Mount Sterling

  Bureau County

• Bureau Valley High School, Manlius
• DePue High School, DePue
• Hall High School, Spring Valley
• La Moille High School, La Moille
• Ohio High School, Ohio
• Princeton High School, Princeton

  Calhoun County

• Brussels High School, Brussels
• Calhoun High School, Hardin

  Carroll County

• Eastland High School, Lanark
• Milledgeville High School, Milledgeville
• West Carroll High School, Savanna

  Cass County

• A-C Central High School, Ashland
• Beardstown High School, Beardstown
• Virginia Senior High School, Virginia

  Champaign County

• Centennial High School, Champaign
• Champaign Central High School, Champaign
• Fisher Junior/Senior High School, Fisher
• Heritage High School, Broadlands
• Judah Christian School, Champaign
• Mahomet-Seymour High School, Mahomet
• Rantoul Township High School, Rantoul
• St. Joseph-Ogden High School, St. Joseph
• St. Thomas More High School, Champaign
• Unity High School, Tolono
• University Laboratory High School, Urbana
• Urbana High School, Urbana

  Christian County

• Edinburg High School, Edinburg
• Morrisonville High School, Morrisonville
• Pana Senior High School, Pana
• South Fork Jr Sr High School, Kincaid
• Taylorville High School, Taylorville

  Clark County

• Casey-Westfield High School, Casey
• Marshall High School, Marshall
• Martinsville High School, Martinsville

  Clay County

• Clay City High School, Clay City
• Flora High School, Flora
• North Clay High School, Louisville

  Clinton County

• Carlyle High School, Carlyle
• Central Community High School, Breese
• Christ Our Rock Lutheran High School, Centralia
• Mater Dei High School, Breese
• Wesclin Senior High School, Trenton

  Coles County

• Charleston High School, Charleston
• Mattoon High School, Mattoon
• Oakland High School, Oakland

  Cook County

• Air Force Academy High School, Chicago
• Alcott Humanities High School, Chicago
• Amundsen High School, Chicago
• Victor J. Andrew High School, Tinley Park
• Argo Community High School, Summit
• Austin Community Academy High School, Chicago
• Back of the Yards College Preparatory High School, Chicago
• Bais Yaakov High School, Chicago
• Beacon Academy, Evanston
• Bloom High School, Chicago Heights
• Bloom Trail High School, Chicago Heights
• Bogan High School, Chicago
• Bowen High School, Chicago
• Bremen High School, Midlothian
• British International School of Chicago Lincoln Park, Chicago
• Bronzeville Alternative Academy, Chicago
• Bronzeville Scholastic Institute, Chicago
• Gwendolyn Brooks College Preparatory Academy, Chicago
• Brother Rice High School, Chicago
• Buffalo Grove High School, Buffalo Grove
• Calumet Career Prep Academy, Chicago
• Dr. Pedro Albizu Campos High School, Chicago
• Carver Military Academy, Chicago
• Chicago Academy for the Arts, Chicago
• Chicago Academy High School, Chicago
• Chicago Christian High School, Palos Heights
• Chicago Excel Academy, Chicago
• Chicago High School for Agricultural Sciences, Chicago
• Chicago High School for the Arts, Chicago
• Chicago International Charter School Northtown Academy, Chicago
• Chicago Math and Science Academy, Chicago
• Chicago Military Academy, Chicago
• Chicago Technology Academy, Chicago
• Chicago Virtual Charter School, Chicago
• Chicago Vocational High School, Chicago
• Chicago Waldorf School, Chicago
• Christ the King Jesuit College Prep High School, Chicago
• , Northfield
• Christian Liberty Academy, Arlington Heights/Wheeling Township
• Michele Clark Magnet High School, Chicago
• Roberto Clemente Community Academy, Chicago
• Collins Academy High School, Chicago
• Community Services West Career Academy, Chicago
• James B. Conant High School, Hoffman Estates
• Corliss High School, Chicago
• Cosmopolitan Preparatory School, Chicago
• Crane High School, Chicago
• Cristo Rey Jesuit High School, Chicago
• Curie Metropolitan High School, Chicago
• De La Salle Institute, Chicago
• DePaul College Prep, Chicago
• Devry Advantage Academy, Chicago
• Disney II Magnet High School, Chicago
• Douglass Academy High School, Chicago
• Dunbar Vocational High School, Chicago
• DuSable High School, Chicago
• Dyett High School, Chicago
• East Leyden High School, Franklin Park
• Dwight D. Eisenhower High School, Blue Island
• Elgin High School, Elgin
• Elk Grove High School, Elk Grove Village
• Elmwood Park High School, Elmwood Park
• Evanston Township High School, Evanston
• Evergreen Park Community High School, Evergreen Park
• Farragut Career Academy, Chicago
• Fasman Yeshiva High School, Skokie
• Fenger Academy High School, Chicago
• Fenwick High School, Oak Park
• Foreman High School, Chicago
• Forest View Alternative School, Arlington Heights
• William Fremd High School, Palatine
• Gage Park High School, Chicago
• Garfield Alternative High School, Chicago
• Glenbrook North High School, Northbrook
• Glenbrook South High School, Glenview
• Goode STEM Academy, Chicago
• Ray Graham Training Center, Chicago
• Guerin College Preparatory High School, River Grove
• Hales Franciscan High School, Chicago
• John Hancock College Preparatory High School, Chicago
• Harlan Community Academy High School, Chicago
• Harper High School, Chicago
• John Hersey High School, Arlington Heights
• Hillcrest High School, Country Club Hills
• Hirsch Metropolitan High School, Chicago
• Hoffman Estates High School, Hoffman Estates
• Holy Trinity High School, Chicago
• Homewood-Flossmoor High School, Flossmoor
• Hope College Prep High School, Chicago
• Hubbard High School, Chicago
• Hyde Park Academy High School, Chicago
• Ida Crown Jewish Academy, Chicago
• Illiana Christian High School, Lansing
• Infinity Math Science & Tech High School, Chicago
• Jones College Prep High School, Chicago
• Josephinum Academy, Chicago
• Juarez Community Academy, Chicago
• Jubilee Academy, Chicago
• Julian High School, Chicago
• Kelly High School, Chicago
• Kelvyn Park High School, Chicago
• John F. Kennedy High School, Chicago
• Kenwood Academy, Chicago
• King College Prep, Chicago
• Lake View Academy, Chicago
• Lake View High School, Chicago
• Lane Technical College Prep High School, Chicago
• Latin School of Chicago, Chicago
• Latino Youth High School, Chicago
• Lemont High School, Lemont
• Leo Catholic High School, Chicago
• Lincoln Park High School, Chicago
• Robert Lindblom Math & Science Academy, Chicago
• Little Village Lawndale High School Campus, Chicago
• Lourdes High School, Chicago
• Loyola Academy, Wilmette
• Lubavitch Boys High School, Chicago
• Lubavitch Girls High School, Chicago
• Lubavitch Mesivta of Chicago, Chicago
• Luther East High School, Lansing
• Luther High School North, Chicago
• Luther High School South, Chicago
• Lycée Français de Chicago, Chicago
• Lyons Township High School, La Grange
• Maine East High School, Park Ridge
• Maine South High School, Park Ridge
• Maine West High School, Des Plaines
• Manley Career Academy High School, Chicago
• Marian Catholic High School, Chicago Heights
• Marist High School, Chicago
• Marshall Metropolitan High School, Chicago
• Mather High School, Chicago
• Morgan Park Academy, Chicago
• Morgan Park High School, Chicago
• J. Sterling Morton High School District 201, a district in Cicero and Berwyn that competes athletically as "Morton High School", comprising the following campuses:
• *J. Sterling Morton High School East, Cicero
• *J. Sterling Morton Freshman Center, Cicero
• *J. Sterling Morton High School West, Berwyn
• Mother McAuley Liberal Arts High School, Chicago
• Mount Assisi Academy, Lemont
• Mount Carmel High School, Chicago
• Muhammad University of Islam, Chicago
• Nazareth Academy, La Grange Park
• New Trier High School, Winnetka
• Niles North High School, Skokie
• Niles West High School, Skokie
• Noble Street College Prep, Chicago
• North Cook Young Adult Academy, Des Plaines
• North-Grand High School, Chicago
• North Lawndale College Prep High School, Chicago
• North Shore Country Day School, Winnetka
• Northridge Preparatory School, Niles
• Northside College Preparatory High School, Chicago
• Northside Learning Center, Chicago
• Northwest Suburban Academy Arlington Heights
• Notre Dame College Prep, Niles
• Notre Dame High School for Girls, Chicago
• Oak Forest High School, Oak Forest
• Oak Lawn Community High School, Oak Lawn
• Oak Park and River Forest High School, Oak Park
• Ogden International High School, Chicago
• Orr Academy High School, Chicago
• Our Lady of Tepeyac High School, Chicago
• Palatine High School, Palatine
• Antonia Pantoja High School, Chicago
• Francis W. Parker School, Chicago
• Walter Payton College Prep, Chicago
• Wendell Phillips Academy High School, Chicago
• Phoenix Military Academy, Chicago
• Prospect High School, Mount Prospect
• Prosser Career Academy, Chicago
• Providence St. Mel School, Chicago
• Proviso East High School, Maywood
• Proviso Mathematics and Science Academy, Forest Park
• Proviso West High School, Hillside
• Queen of Peace High School, Burbank
• Al Raby High School, Chicago
• Reavis High School, Burbank
• Regina Dominican High School, Wilmette
• Resurrection High School, Chicago
• Rich Central High School, Olympia Fields
• Rich East High School, Park Forest
• Rich South High School, Richton Park
• Richards Career Academy, Chicago
• Harold L. Richards High School, Oak Lawn
• Ridgewood High School, Norridge
• Riverside Brookfield High School, Riverside
• Paul Robeson High School, Chicago
• Rolling Meadows High School, Rolling Meadows
• Roosevelt High School, Chicago
• Roycemore School, Evanston
• St. Benedict High School, Chicago
• St. Francis de Sales High School, Chicago
• St. Ignatius College Prep, Chicago
• St. Joseph High School, Westchester
• St. Laurence High School, Burbank
• St. Patrick High School, Chicago
• St. Rita of Cascia High School, Chicago
• St. Thomas of Villanova Catholic Secondary School, Palatine
• St. Viator High School, Arlington Heights
• Carl Sandburg High School, Orland Park
• Schaumburg High School, Schaumburg
• Carl Schurz High School, Chicago
• Senn High School, Chicago
• Seton Academy, South Holland
• Alan B. Shepard High School, Palos Heights
• Simeon Career Academy, Chicago
• South Shore High School, Chicago
• South Side Baptist School, Oak Lawn
• Southland College Preparatory Charter High School, Richton Park
• Southside Occupational Academy, Chicago
• Amos Alonzo Stagg High School, Palos Hills
• Steinmetz College Prep, Chicago
• Streamwood High School, Streamwood
• Sullivan High School, Chicago
• Taft High School, Chicago
• Tallgrass Sudbury School, Riverside
• Telshe High School, Chicago
• Thornridge High School, Dolton
• Thornton Fractional North High School, Calumet City
• Thornton Fractional South High School, Lansing
• Thornton Township High School, Harvey
• Thornwood High School, South Holland
• Tilden High School, Chicago
• Tinley Park High School, Tinley Park
• Trinity High School, River Forest
• Universal School, Bridgeview
• University of Chicago Laboratory Schools, Chicago
• Uplift Community High School, Chicago
• Urban Prep Charter Academy for Young Men, Chicago
• Vanguard School, Arlington Heights
• Vaughn Occupational High School, Chicago
• Von Steuben Metropolitan High School, Chicago
• Walther Christian Academy, Melrose Park
• George Washington High School, Chicago
• Wells Community Academy High School, Chicago
• West Leyden High School, Northlake
• West Town Academy, Chicago
• George Westinghouse College Prep, Chicago — formerly Westinghouse Area Voc High School, and formerly Westinghouse Career Academy
• Wheeling High School, Wheeling
• Daniel Hale Williams Preparatory School of Medicine, Chicago
• York Alternative High School, Chicago
• Whitney M. Young Magnet High School, Chicago
• Young Women's Leadership Charter School of Chicago, Chicago
• Rochelle Zell Jewish High School, Deerfield

  Defunct

• Archbishop Quigley Preparatory Seminary, Chicago
• Arlington High School, Arlington Heights
• Calumet High School, Chicago
• Chicago Discovery Academy, Chicago
• Chicago High School, Chicago
• Chicago Talent Development High School, Chicago
• Cooley Vocational High School, Chicago
• Englewood Technical Prep Academy, Chicago
• Flower Career Academy, Chicago
• Forest View High School, Arlington Heights
• Holy Cross High School, River Grove
• Immaculata High School, Chicago
• Immaculate Heart of Mary High School, Westchester
• Las Casas Occupational High School, Chicago
• Lourdes High School, Chicago
• Maine North High School, Des Plaines
• Maria High School, Chicago
• McKinley High School, Chicago
• Mendel Catholic High School, Chicago
• Near North Career Metropolitan High School, Chicago
• Niles East High School, Skokie
• Quigley South, Chicago
• St. George High School, Evanston
• St. Gregory the Great High School, Chicago
• Saint Louise de Marillac High School, Northfield
• St. Scholastica Academy, Chicago
• Spalding High School, Chicago

  Crawford County

• Hutsonville High School, Hutsonville
• Oblong High School, Oblong
• Palestine High School, Palestine
• Robinson High School, Robinson

  Cumberland County

• Cumberland High School, Toledo
• Neoga Junior-Senior High School, Neoga

  DeKalb County

• DeKalb High School, DeKalb
• Genoa-Kingston High School, Genoa
• Hiawatha Junior and Senior High School, Kirkland
• Hinckley-Big Rock High School, Hinckley
• Indian Creek High School, Shabbona
• Sandwich Community High School, Sandwich, also serves students in Kendall and LaSalle counties
• Somonauk High School, Somonauk, also serves students in LaSalle County
• Sycamore High School, Sycamore

  DeWitt County

• Blue Ridge High School, Farmer City
• Clinton High School, Clinton

  Douglas County

• Arcola High School, Arcola
• Arthur-Lovington-Atwood-Hammond High School, Arthur
• Tuscola Community High School, Tuscola
• Villa Grove High School, Villa Grove

  DuPage County

• Addison Trail High School, Addison
• Bartlett High School, Bartlett
• Benet Academy, Lisle
• College Preparatory School of America, Lombard
• Downers Grove North High School, Downers Grove
• Downers Grove South High School, Downers Grove
• Fenton High School, Bensenville
• Glenbard East High School, Lombard
• Glenbard North High School, Carol Stream
• Glenbard South High School, Glen Ellyn
• Glenbard West High School, Glen Ellyn
• Hinsdale Central High School, Hinsdale
• Hinsdale South High School, Darien
• IC Catholic Prep, Elmhurst
• Indian Plains Alternative High School, Aurora
• Islamic Foundation School, Villa Park
• Lake Park High School, Roselle
• Lisle High School, Lisle
• Metea Valley High School, Aurora
• Montini Catholic High School, Lombard
• Naperville Central High School, Naperville
• Naperville North High School, Naperville
• St. Francis High School, Wheaton
• Timothy Christian School, Elmhurst
• Waubonsie Valley High School, Aurora
• West Chicago Community High School, West Chicago
• Westmont High School, Westmont
• Wheaton Academy, West Chicago
• Wheaton North High School, Wheaton
• Wheaton Warrenville South High School, Wheaton
• Willowbrook High School, Villa Park
• York Community High School, Elmhurst

  Defunct

• Driscoll Catholic High School, Addison

  Edgar County

• Chrisman High School, Chrisman
• Kansas High School, Kansas
• Paris Cooperative High School, Paris
• Shiloh High School, Hume

  Edwards County

• Edwards County High School, Albion

  Effingham County

• Altamont High School, Altamont
• Beecher City Junior-Senior High School, Beecher City
• Dieterich Junior-Senior High School, Dieterich
• Effingham High School, Effingham
• St. Anthony High School, Effingham
• Teutopolis High School, Teutopolis

  Fayette County

• Brownstown Junior-Senior High School, Brownstown
• Ramsey High School, Ramsey
• St. Elmo Junior-Senior High School, St. Elmo
• Vandalia Community High School, Vandalia

  Ford County

• Gibson City-Melvin-Sibley High School, Gibson City
• Paxton-Buckley-Loda High School, Paxton

  Franklin County

• Benton Consolidated High School, Benton
• Christopher High School, Christopher
• Ezra Christian School, West Frankfort
• Frankfort Community High School, West Frankfort
• Sesser-Valier High School, Sesser
• Thompsonville High School, Thompsonville
• Zeigler-Royalton High School, Zeigler

  Fulton County

• Astoria High School, Astoria
• Avon High School, Avon
• Canton High School, Canton
• Cuba High School, Cuba
• Farmington Central High School, Farmington
• Lewistown High School, Lewistown
• Spoon River Valley High School, London Mills
• VIT High School, Table Grove

  Gallatin County

• Gallatin High School, Junction

  Greene County

• Carrollton High School, Carrollton
• Greenfield High School, Greenfield
• North Greene High School, White Hall

  Grundy County

• Coal City High School, Coal City
• Gardner-South Wilmington Township High School, Gardner
• Minooka High School, Minooka
• Morris Community High School, Morris

  Hamilton County

• Hamilton County Junior/Senior High School, McLeansboro

  Hancock County

• Hamilton High School, Hamilton
• Illini West High School, Carthage
• Southeastern High School, Augusta
• Warsaw High School, Warsaw

  Hardin County

• Hardin County High School, Elizabethtown

  Henderson County

• West Central High School, Biggsville

  Henry County

• AlWood High School, Woodhull
• Annawan High School, Annawan
• Cambridge High School, Cambridge
• Galva High School, Galva
• Geneseo High School, Geneseo
• Kewanee High School, Kewanee
• Orion High School, Orion
• Wethersfield High School, Kewanee

  Iroquois County

• Central High School, Clifton
• Christ Lutheran High School, Buckley
• Cissna Park High School, Cissna Park
• Donovan Junior-Senior High School, Donovan
• Iroquois West High School, Gilman
• Milford High School, Milford
• Watseka Community High School, Watseka

  Defunct

• Crescent-Iroquois High School, Crescent City

  Jackson County

• Brehm Preparatory School, Carbondale
• Carbondale Community High School, Carbondale
• Elverado High School, Elkville
• Murphysboro High School, Murphysboro
• Trico High School, Campbell Hill

  Jasper County

• Newton Community High School, Newton

  Jefferson County

• Mount Vernon Township High School, Mount Vernon
• Waltonville High School, Waltonville
• Webber Township High School, Bluford
• Woodlawn Community High School, Woodlawn

  Jersey County

• Jersey Community High School, Jerseyville

  Jo Daviess County

• East Dubuque High School, East Dubuque
• Galena High School, Galena
• River Ridge High School, Hanover
• Scales Mound High School, Scales Mound
• Stockton High School, Stockton
• Warren High School, Warren

  Johnson County

• Goreville High School, Goreville
• Vienna High School, Vienna

  Kane County

• Aurora Central Catholic High School, Aurora
• Aurora Christian School, Aurora
• Batavia High School, Batavia
• Central High School, Burlington
• Dundee-Crown High School, Carpentersville
• East Aurora High School, Aurora
• The Einstein Academy, Elgin
• Elgin Academy, Elgin
• Geneva Community High School, Geneva
• Gifford Street High School, Elgin
• Hampshire High School, Hampshire
• Harvest Christian Academy, Elgin
• Illinois Mathematics and Science Academy, Aurora
• Harry D. Jacobs High School, Maple Park
• Larkin High School, Elgin
• Marmion Academy, Aurora
• Rosary High School, Aurora
• South Elgin High School, South Elgin
• St. Charles East High School, St. Charles
• St. Charles North High School, St. Charles
• St. Edward Central Catholic High School, Elgin
• West Aurora High School, Aurora
• Westminster Christian School, Elgin

  Defunct

• Academy of the Cross, St. Charles
• Broadview Academy, La Fox

  Kankakee County

• Bishop McNamara High School, Kankakee
• Bradley-Bourbonnais Community High School, Bradley
• Grace Christian Academy, Kankakee
• Grant Park High School, Grant Park
• Herscher High School, Herscher
• Kankakee High School, Kankakee
• Kankakee Trinity Academy, Kankakee
• Manteno High School, Manteno
• Momence High School, Momence
• Safe Harbor School, Manteno, grades 5-12, part of Indian Oaks Academy
• St. Anne Community High School, St. Anne

  Kendall County

• Newark Community High School, Newark
• Oswego East High School, Oswego
• Oswego High School, Oswego
• Plainfield South High School, Joliet
• Plano High School, Plano
• Yorkville High School, Yorkville

  Knox County

• Abingdon-Avon High School, Abingdon
• Galesburg High School, Galesburg
• Knoxville High School, Knoxville
• ROWVA High School, Oneida
• Williamsfield High School, Williamsfield

  LaSalle County

• Earlville High School, Earlville
• LaSalle-Peru High School, LaSalle
• Leland High School, Leland
• Marquette High School, Ottawa
• Mendota Township High School, Mendota
• Ottawa Township High School, Ottawa
• St. Bede Academy, Peru
• Seneca High School, Seneca
• Serena High School, Serena
• Streator Township High School, Streator

  Lake County

• Antioch Community High School, Antioch
• Barrington High School, Barrington
• Carmel High School, Mundelein
• Deerfield High School, Deerfield
• Gateway School, Lake Villa
• Grant Community High School, Fox Lake
• Grayslake Central High School, Grayslake
• Grayslake North High School, Grayslake
• Highland Park High School, Highland Park
• Lake Forest Academy, Lake Forest
• Lake Forest High School, Lake Forest
• Lake Zurich High School, Lake Zurich
• Lakes Community High School, Lake Villa
• Cyd Lash Academy, Gages Lake
• Libertyville High School, Libertyville
• Mundelein High School, Mundelein
• New Tech High at Zion-Benton East, Zion
• North Chicago Community High School, North Chicago
• Round Lake High School, Round Lake
• Cristo Rey St. Martin College Prep Waukegan
• Adlai E. Stevenson High School, Lincolnshire
• Vernon Hills High School, Vernon Hills
• Warren Township High School, Gurnee
• Wauconda High School, Wauconda
• Waukegan High School, Waukegan
• Woodlands [Academy of the Sacred Heart">Maple Park, Illinois">Maple Park
• Larkin High School, Elgin
• Marmion Academy, Aurora
• Rosary High School, Aurora
• South Elgin High School, South Elgin
• St. Charles East High School, St. Charles
• St. Charles North High School, St. Charles
• St. Edward Central Catholic High School, Elgin
• West Aurora High School, Aurora
• Westminster Christian School, Elgin

  Defunct

• Academy of the Cross, St. Charles
• Broadview Academy, La Fox

  Kankakee County

• Bishop McNamara High School, Kankakee
• Bradley-Bourbonnais Community High School, Bradley
• Grace Christian Academy, Kankakee
• Grant Park High School, Grant Park
• Herscher High School, Herscher
• Kankakee High School, Kankakee
• Kankakee Trinity Academy, Kankakee
• Manteno High School, Manteno
• Momence High School, Momence
• Safe Harbor School, Manteno, grades 5-12, part of Indian Oaks Academy
• St. Anne Community High School, St. Anne

  Kendall County

• Newark Community High School, Newark
• Oswego East High School, Oswego
• Oswego High School, Oswego
• Plainfield South High School, Joliet
• Plano High School, Plano
• Yorkville High School, Yorkville

  Knox County

• Abingdon-Avon High School, Abingdon
• Galesburg High School, Galesburg
• Knoxville High School, Knoxville
• ROWVA High School, Oneida
• Williamsfield High School, Williamsfield

  LaSalle County

• Earlville High School, Earlville
• LaSalle-Peru High School, LaSalle
• Leland High School, Leland
• Marquette High School, Ottawa
• Mendota Township High School, Mendota
• Ottawa Township High School, Ottawa
• St. Bede Academy, Peru
• Seneca High School, Seneca
• Serena High School, Serena
• Streator Township High School, Streator

  Lake County

• Antioch Community High School, Antioch
• Barrington High School, Barrington
• Carmel High School, Mundelein
• Deerfield High School, Deerfield
• Gateway School, Lake Villa
• Grant Community High School, Fox Lake
• Grayslake Central High School, Grayslake
• Grayslake North High School, Grayslake
• Highland Park High School, Highland Park
• Lake Forest Academy, Lake Forest
• Lake Forest High School, Lake Forest
• Lake Zurich High School, Lake Zurich
• Lakes Community High School, Lake Villa
• Cyd Lash Academy, Gages Lake
• Libertyville High School, Libertyville
• Mundelein High School, Mundelein
• New Tech High at Zion-Benton East, Zion
• North Chicago Community High School, North Chicago
• Round Lake High School, Round Lake
• Cristo Rey St. Martin College Prep Waukegan
• Adlai E. Stevenson High School, Lincolnshire
• Vernon Hills High School, Vernon Hills
• Warren Township High School, Gurnee
• Wauconda High School, Wauconda
• Waukegan High School, Waukegan
• Woodlands [Academy of the Sacred Heart, Lake Forest
• Zion-Benton Township High School, Zion

  Defunct

• Ferry Hall School, Lake Forest

  Lawrence County

• Lawrenceville High School, Lawrenceville
• Red Hill High School, Bridgeport

  Lee County

• Amboy High School, Amboy
• Ashton-Franklin Center High School, Ashton
• Dixon High School, Dixon
• Paw Paw High School, Paw Paw

  Livingston County

• Dwight High School, Dwight
• Flanagan High School, Flanagan
• Pontiac Township High School, Pontiac
• Prairie Central High School, Fairbury
• Tri-Point High School, Cullom
• Woodland High School, Streator, also serves students in LaSalle County

  Logan County

• Lincoln Community High School, Lincoln
• Hartsburg-Embden High School, Hartsburg
• Mount Pulaski High School, Mount Pulaski

  Macon County

• Argenta-Oreana High School, Argenta
• Decatur Christian High School, Forsyth
• Eisenhower High School, Decatur
• Lutheran School Association, Decatur
• MacArthur High School, Decatur
• Maroa-Forsyth High School, Maroa
• Meridian High School, Macon
• Mount Zion High School, Mount Zion
• Sangamon Valley High School, Niantic
• St. Teresa High School, Decatur
• Warrensburg-Latham High School, Warrensburg

  Defunct

• Stephen Decatur High School, Decatur

  Macoupin County

• Bunker Hill High School, Bunker Hill
• Carlinville High School, Carlinville
• Gillespie High School, Gillespie
• Mount Olive High School, Mount Olive
• North Mac High School, Virden
• Northwestern High School, Palmyra
• Southwestern High School, Piasa
• Staunton High School, Staunton

  Madison County

• Alton Senior High School, Alton
• Civic Memorial High School, Bethalto
• Collinsville High School, Collinsville
• East Alton-Wood River High School, Wood River
• Edwardsville High School, Edwardsville
• Father McGivney Catholic High School, Maryville
• Granite City High School, Granite City
• Highland High School, Highland
• Madison Senior High School, Madison
• Marquette Catholic High School, Alton
• Metro-East Lutheran High School, Edwardsville
• Roxana High School, Roxana
• Triad High School, Troy

  Defunct

• Livingston High School, Livingston
• Venice High School, Venice

  Marion County

• Centralia High School, Centralia
• Odin High School, Odin
• Patoka Senior High School, Patoka
• Salem Community High School, Salem
• Sandoval Junior-Senior High School, Sandoval
• South Central High School, Farina

  Marshall County

• Henry-Senachwine High School, Henry
• Midland High School, Varna

  Mason County

• Havana High School, Havana
• Illini Central High School, Mason City
• Midwest Central High School, Manito

  Massac County

• Joppa Junior & Senior High School, Joppa
• Massac County High School, Metropolis

  McDonough County

• Bushnell-Prairie City High School, Bushnell
• Macomb High School, Macomb
• West Prairie High School, Sciota

  McHenry County

• Alden-Hebron High School, Hebron
• Cary-Grove High School, Cary
• Crystal Lake Central High School, Crystal Lake
• Crystal Lake South High School, Crystal Lake
• Faith Lutheran High School, Crystal Lake
• Harvard High School, Harvard
• Huntley High School, Huntley
• Jacobs High School, Algonquin
• Johnsburg High School, Johnsburg
• Marengo Community High School, Marengo
• Marian Central Catholic High School, Woodstock
• McHenry East High School, McHenry
• McHenry West High School, McHenry
• Prairie Ridge High School, Crystal Lake
• Richmond-Burton Community High School, Richmond
• Woodstock High School, Woodstock
• Woodstock North High School, Woodstock

  McLean County

• Bloomington High School, Bloomington
• Calvary Baptist Academy, Bloomington
• Central Catholic High School, Bloomington
• Chenoa High School, Chenoa
• Cornerstone Christian Academy, Bloomington
• El-Paso-Gridley High School, Gridley
• Heyworth High School, Heyworth
• LeRoy High School, Le Roy
• Lexington High School, Lexington
• Normal Community High School, Normal
• Normal Community West High School, Normal
• Olympia High School, Stanford
• Regional Alternative School, Bloomington
• Ridgeview High School, Colfax
• Tri-Valley High School, Downs
• University High School, Normal

  Menard County

• Athens Senior High School, Athens
• Greenview High School, Greenview
• Porta High School, Petersburg

  Mercer County

• Mercer County High School, Aledo

  Monroe County

• Beck AVC Alternative School, Red Bud
• Columbia High School, Columbia
• Gibault Catholic High School, Waterloo
• Valmeyer High School, Valmeyer
• Waterloo High School, Waterloo

  Montgomery County

• Hillsboro High School, Hillsboro
• Lincolnwood High School, Raymond
• Litchfield High School, Litchfield
• Nokomis High School, Nokomis

  Morgan County

• Franklin Junior/Senior High School, Franklin
• Illinois School for the Deaf, Jacksonville
• Illinois School for the Visually Impaired, Jacksonville
• Jacksonville High School, Jacksonville
• Meredosia-Chambersburg High School, Meredosia
• Routt Catholic High School, Jacksonville
• Triopia Junior-Senior High School, Concord
• Waverly High School, Waverly

  Moultrie County

• Arthur Christian School, Arthur
• Okaw Valley High School, Bethany
• Sullivan High School, Sullivan

  Ogle County

• Byron High School, Byron
• Forreston High School, Forreston
• Oregon High School, Oregon
• Polo Community High School, Polo
• Rochelle Township High School, Rochelle
• Stillman Valley High School, Stillman Valley

  Peoria County

• Brimfield High School, Brimfield
• Dunlap High School, Dunlap
• Elmwood High School, Elmwood
• Illini Bluffs High School, Glasford
• Illinois Valley Central High School, Chillicothe
• Limestone Community High School, Bartonville
• Manual High School, Peoria
• Peoria Alternative School, Peoria
• Peoria Christian School, Peoria
• Peoria Heights High School, Peoria Heights
• Peoria High School, Peoria
• Peoria Notre Dame High School, Peoria
• Princeville High School, Princeville
• Richwoods High School, Peoria
• Woodruff Career and Technical Center, Peoria — formerly known as E. N. Woodruff High School

  Defunct

• Academy of Our Lady/Spalding Institute, Peoria
• Bergan High School, Peoria

  Perry County

• DuQuoin High School, Du Quoin
• Pinckneyville Community High School, Pinckneyville

  Piatt County

• Bement High School, Bement
• Cerro Gordo High School, Cerro Gordo
• DeLand-Weldon High School, De Land
• Monticello High School, Monticello

  Pike County

• Griggsville-Perry High School, Griggsville
• Pittsfield High School, Pittsfield
• Pleasant Hill High School, Pleasant Hill
• Western High School, Barry

  Pope County

• Pope County High School, Golconda

  Pulaski County

• Century High School, Ullin
• Meridian High School, Mounds

  Putnam County

• Putnam County High School, Granville

  Randolph County

• Chester High School, Chester
• Coulterville High School, Coulterville
• Red Bud High School, Red Bud
• Sparta High School, Sparta
• Steeleville High School, Steeleville

  Richland County

• East Richland High School, Olney
• West Richland High School, Noble

  Rock Island County

• Alleman High School, Rock Island
• Moline High School, Moline
• Riverdale High School, Port Byron
• Rock Island High School, Rock Island
• Rockridge High School, Taylor Ridge
• Sherrard High School, Sherrard
• United Township High School, East Moline

  St. Clair County

• Althoff Catholic High School, Belleville
• Belleville High School-East, Belleville
• Belleville High School-West, Belleville
• Berean Christian School, Fairview Heights
• Cahokia High School, Cahokia
• Collinsville High School, Collinsville
• Dupo High School, Dupo
• East St. Louis Senior High School, East St. Louis
• Freeburg Community High School, Freeburg
• Lebanon High School, Lebanon
• Marissa Junior-Senior High School, Marissa
• Mascoutah Community High School, Mascoutah
• New Athens High School, New Athens
• O'Fallon Township High School- Freshman Campus, O'Fallon
• O'Fallon Township High School, O'Fallon
• SIU Charter School of East St. Louis, East St. Louis

  Saline County

• Carrier Mills-Stonefort High School, Carrier Mills
• Eldorado High School, Eldorado
• Galatia High School, Galatia
• Harrisburg High School, Harrisburg

  Sangamon County

• Auburn High School, Auburn
• Douglas School, Springfield
• Glenwood High School, Chatham
• Lanphier High School, Springfield
• Lutheran High School, Springfield
• New Berlin High School, New Berlin
• Pawnee Junior/Senior High School, Pawnee
• Pleasant Plains High School, Pleasant Plains
• Riverton High School, Riverton
• Rochester High School, Rochester
• Sacred Heart-Griffin High School, Springfield
• Springfield High School, Springfield
• Springfield Southeast High School, Springfield
• Tri-City High School, Buffalo
• Williamsville High School, Williamsville

  Defunct

• Divernon High School, Divernon
• Ursuline Academy, Springfield

  Schuyler County

• Rushville-Industry High School, Rushville

  Scott County

• Bluffs High School, Bluffs
• Winchester High School, Winchester

  Shelby County

• Central A & M High School, Moweaqua
• Cowden-Herrick High School, Cowden
• Shelbyville High School, Shelbyville
• Stewardson-Strasburg High School, Strasburg
• Windsor Junior & Senior High School, Windsor

  Stark County

• Stark County High School, Toulon

  Stephenson County

• Aquin Central Catholic High School, Freeport
• Dakota Junior Senior High School, Dakota
• Freeport High School, Freeport
• Lena-Winslow High School, Lena
• Orangeville High School, Orangeville
• Pearl City High School, Pearl City

  Tazewell County

• The Academy at ICC, East Peoria
• Dee-Mack High School, Mackinaw
• Delavan High School, Delavan
• East Peoria Community High School, East Peoria
• Morton High School, Morton
• Pekin Community High School, Pekin
• Tremont High School, Tremont
• Washington Community High School, Washington

  Union County

• Anna-Jonesboro High School, Anna
• Cobden High School, Cobden
• Dongola High School, Dongola
• Shawnee High School, Wolf Lake

  Vermilion County

• Armstrong High School, Armstrong
• Bismarck Henning High School, Bismarck
• Catlin High School, Catlin
• Danville High School, Danville
• First Baptist Christian School, Danville
• Georgetown-Ridge Farm High School, Georgetown
• Hoopeston Area High School, Hoopeston
• Jamaica High School, Sidell
• Oakwood High School, Fithian
• Rossville-Alvin High School, Rossville
• Schlarman Academy, Danville
• Westville High School, Westville

  Defunct

• Henning High School, Henning

  Wabash County

• Mount Carmel High School, Mount Carmel

  Warren County

• Monmouth-Roseville High School, Monmouth
• United Senior High School, Monmouth

  Washington County

• Nashville Community High School, Nashville
• Okawville High School, Okawville

  Wayne County

• Cisne High School, Cisne
• Fairfield Community High School, Fairfield
• Wayne City High School, Wayne City

  White County

• Carmi-White County High School, Carmi
• Grayville Jr. Sr. High School, Grayville
• Norris City-Omaha-Enfield High School, Norris City

  Whiteside County

• Erie High School, Erie
• Fulton High School, Fulton
• Morrison High School, Morrison
• Newman Central Catholic High School, Sterling
• Prophetstown High School, Prophetstown
• Rock Falls High School, Rock Falls
• Sterling High School, Sterling
• Unity Christian High School, Fulton

  Will County

• Beecher High School, Beecher
• Bolingbrook High School, Bolingbrook
• Christ Lutheran Academy, Plainfield
• Crete-Monee High School, Crete
• Illinois Lutheran High School, Crete
• Joliet Catholic Academy, Joliet
• Joliet Central High School, Joliet
• Joliet West High School, Joliet
• Lincoln-Way Central High School, New Lenox
• Lincoln-Way East High School, Frankfort
• Lincoln-Way North High School, Frankfort
• Lincoln-Way West High School, New Lenox
• Lockport Township High School, Lockport
• Neuqua Valley High School, Naperville
• Peotone High School, Peotone
• Plainfield Central High School, Plainfield
• Plainfield East High School, Plainfield
• Plainfield North High School, Plainfield
• Plainfield South High School, Joliet
• Providence Catholic High School, New Lenox
• Reed-Custer High School, Braidwood
• Ridgewood Baptist Academy, Joliet
• Romeoville High School, Romeoville
• Wilmington High School, Wilmington

  Williamson County

• Carterville High School, Carterville
• Crab Orchard High School, Marion
• Herrin High School, Herrin
• Johnston City High School, Johnston City
• Marion High School, Marion
• Project E.C.H.O., Johnston City

  Winnebago County

• Auburn High School, Rockford
• Boylan Catholic High School, Rockford
• Christian Life High School, Rockford
• Durand High School, Durand
• Guilford High School, Rockford
• Harlem High School, Machesney Park
• Hononegah Community High School, Rockton
• Thomas Jefferson High School, Rockford
• Keith Country Day School, Rockford
• Our Lady of the Sacred Heart Academy, Rockford
• Pecatonica High School, Pecatonica
• Rockford Christian High School, Rockford
• Rockford East High School, Rockford
• Rockford Iqra School, Rockford
• Rockford Lutheran High School, Rockford
• South Beloit High School, South Beloit
• Winnebago High School, Winnebago

  Defunct

• Rockford Central High School, Rockford

  Woodford County

• El Paso-Gridley High School, El Paso
• Eureka High School, Eureka
• Fieldcrest High School, Minonk
• Lowpoint-Washburn High School, Washburn
• Metamora Township High School, Metamora
• Roanoke-Benson High School, Roanoke