| Abingdon-Avon Community Unit School District 276 | Macomb School District 185 |
| AC Central Community Unit School District 262 | Madison Community Unit School District 12 |
| Addison School District 4 | Maercker School District 60 |
| Adlai E. Stevenson High School District 125 | Mahomet-Seymour Community Unit School District 3 |
| Albers Elementary School District 63 | Maine Township High School District 207 |
| Alden-Hebron School District 19 | Malden Community Consolidated School District 84 |
| Allen Otter Creek District 65 | Manhattan School District 114 |
| Allendale Community Consolidated School District 17 | Mannheim School District 83 |
| Alsip-Hazelgreen-OakLawn School District 126 | Manteno Community Unit School District 5 |
| Altamont Community Unit School District 10 | Marengo Community High School District 154 |
| Alton Community Unit School District 11 | Marengo Union Elementary Consolidated School District 165 |
| AlWood Community District 225 | Marion Community Unit School District 2 |
| Amboy Community Unit School District 272 | Marissa Community Unit School District 40 |
| Anna Community Consolidated School District 37 | Maroa-Forsyth School District |
| Anna-Jonesboro Community High School District | Marquardt School District 15 |
| Annawan Public Schools | Marseilles Elementary School District 150 |
| Antioch School District 34 | Marshall Community Unit Schools |
| Aptakisic-Tripp School District 102 | Martinsville Community Unit School District C-3 |
| Arbor Park School District 145 | Mascoutah Community Unit School District 19 |
| Arcola School District 306 | Massac Unit School District 1 |
| Argenta-Oreana Community Unit School District 1 | Matteson District 162 |
| Argo Community High School District 217 | Mattoon Community Unit School District 2 |
| Arlington Heights School District 25 | Mazon-Verona-Kinsman Elementary School District 2C |
| Armstrong Township High School District 225 | McHenry Community High School District 156 |
| Arthur Community Unit School District 305 | McHenry School District 15 |
| Ashley Community Consolidated School District 15 | McLean County Unit District 5 |
| Ashton-Franklin Center Community Unit School District 275 | Medinah School District 11 |
| Astoria Community Unit School District 1 | Mendota Community Consolidated School District 289 |
| Athens Community Unit School District 213 | Mendota High School District 280 |
| Atwood Heights School District 125 | Mercer County School District 404 |
| Auburn School District 10 | Meredosia-Chambersburg School District 11 |
| Aviston School District 21 | Meridian Community Unit School District 15 |
| Avoca School District 37 | Meridian School District 101 |
| Ball-Chatham School District | Meridian School District 223 |
| Bannockburn School District 106 | Metamora Community Consolidated School District 1 |
| Barrington Community Unit School District 220 | Midland Community Unit School District 7 |
| Bartelso School District 57 | Midlothian School District 143 |
| Bartonville School District 66 | Midwest Central Community Unit School District 191 |
| Batavia Public School District 101 | Milford Area Public Schools |
| Beach Park School District 3 | Millburn Community Consolidated School District 24 |
| Beardstown Community Unit School District 15 | Millstadt Community Consolidated School District |
| Beecher School District 200-U | Milne-Kelvin Grove District 91 |
| Belle Valley School District 119 | Minooka Community Consolidated School District 201 |
| Belleville District 118 | Minooka Community High School District 111 |
| Belleville Township School District 201 | Mokena School District 159 |
| Bellwood School District 88 | Moline-Coal Valley School District |
| Belvidere School District 100 | Momence School District 1 |
| Bement Community Unit School District 5 | Monmouth – Roseville Community Unit School District 238 |
| Benjamin School District 25 | Monroe School District 70 |
| Bensenville School District 2 | Monticello Community Unit School District 25 |
| Benton Consolidated High School District 103 | Montmorency Community Consolidated School District 145 |
| Berkeley School District 87 | Morris Community High School District 101 |
| Berwyn North School District 98 | Morris Elementary School District 54 |
| Berwyn South School District 100 | Morrison Community Unit School District 6 |
| Bethalto Community Unit School District 8 | Morrisonville Community Unit School District 1 |
| Bethel School District 82 | Morton Grove School District 70 |
| Big Hollow School District 38 | Morton Unit School District 709 |
| Bloom Township District 206 | Mount Olive School District 5 |
| Bloomingdale School District 13 | Mount Prospect School District 57 |
| Bloomington Public Schools District 87 | Mount Vernon Township High School District 201 |
| Blue Ridge Community Unit School District 18 | Mt Pulaski Community Unit School District 23 |
| Bluford Unit School District 318 | Mt. Vernon City School District 80 |
| Bond County Community Unit School District 2 | Mt. Zion Community Unit School District 3 |
| Bourbonnais Elementary School District | Mundelein Consolidated High School District 120 |
| Bradley School District 61 | Mundelein Elementary School District |
| Bradley-Bourbonnais Community High School District 307 | Murphysboro Community Unit School District 186 |
| Breese Elementary District 12 | Naperville Community Unit School District 203 |
| Bremen High School District 228 | Nauvoo-Colusa Community Unit School District 325 |
| Brimfield Community Unit School District 309 | Neoga Community Unit School District 3 |
| Brookfield LaGrange Park School District 95 | Nettle Creek Community Consolidated School District 24 |
| Brooklyn Unit School District 188 | New Athens Community Unit School District 60 |
| Brookwood School District 167 | New Berlin Community Unit School District 16 |
| Brown County School District | New Holland-Middletown School District |
| Brownstown Community Unit School District 201 | New Hope Community Consolidated School District 6 |
| Bunker Hill Community School District 8 | New Lenox School District 122 |
| Burbank School District 111 | New Simpson Hill School District 32 |
| Bureau Valley Community Unit School District 340 | New Trier Township High School District 203 |
| Burnham School District 154-5 | Newark Community Consolidated School District 66 |
| Bushnell-Prairie City Community Unit School District 170 | Newark Community High School District 18 |
| Butler School District 53 | Niles School District 71 |
| Byron Community School District 226 | Niles Township High Schools District 219 |
| Cahokia Unit School District 187 | Nippersink School District 2 |
| Cairo School District 1 | Nokomis Community Unit School District 22 |
| Calhoun District 40 | Norridge School District 80 |
| Calumet City School District 155 | Norris City-Omaha-Enfield Community Unit School District 3 |
| Calumet Public School District 132 | North Boone Community Unit School District 200 |
| Cambridge School District 227 | North Chicago School District 187 |
| Canton Union School District 66 | North Clay Community Unit School District 25 |
| Carbon Cliff-Barstow School District 36 | North Greene Unit District 3 |
| Carbondale Community High School District 165 | North Mac Community Unit School District 34 |
| Carbondale Elementary School District 95 | North Palos School District 117 |
| Carlinville Community School District Unit 1 | North Pekin & Marquette Heights School District 102 |
| Carlyle Community Unit School District 1 | North Shore School District 112 |
| Carmi-White County Community Unit School District 5 | North Wamac Grade School District 186 |
| Carrier Mills-Stonefort Community Unit School District 2 | Northbrook District 28 |
| Carrollton Community Unit School District 1 | Northbrook School District 27 |
| Carterville Community Unit School District 5 | Northbrook/Glenview School District 30 |
| Carthage Elementary School District 317 | Northwestern Community Unit School District 2 |
| Cary Community Consolidated School District 26 | Norwood School District 63 |
| Casey-Westfield Community Unit School District C-4 | O’Fallon School District 90 |
| Cass School District 63 | O’Fallon Township High School District 203 |
| Center Cass School District 66 | Oak Grove School District 68 |
| Central A&M Community Unit District 21 | Oak Lawn Community High School District 229 |
| Central City School District 133 | Oak Lawn-Hometown School District 123 |
| Central Community High School District 71 | Oak Park and River Forest School District 200 |
| Central Community Unit School District 4 | Oak Park Elementary School District 97 |
| Central School District 104 | Oakdale Community Consolidated School District 1 |
| Central School District 3 | Oakland Community Unit School District 5 |
| Central School District 301 | Oakwood Community Unit School District 76 |
| Central School District 51 | Oblong Community Unit School District 4 |
| Central Stickney School District 110 | Odell Community Consolidated School District 435 |
| Centralia City School District 135 | Odin Public School District 722 |
| Centralia High School District 200 | Oglesby Public School District 125 |
| Century Unit School District 100 | Okaw Valley Community School District 302 |
| Cerro Gordo School District 100 | Olympia Community Unit School District 16 |
| Chadwick-Milledgeville Community Unit School District 399 | Opdyke-Belle Rive Community Consolidated School District 5 |
| Champaign Unit School District 4 | Orangeville Community Unit School District 203 |
| Chaney Monge School District 88 | Oregon Community Unit School District 220 |
| Channahon School District 17 | Orion Community Unit School District 223 |
| Charleston Community Unit School District 1 | Orland School District 135 |
| Chester-East Lincoln Community Consolidated School District 61 | Oswego School District 308 |
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| Chicago Heights School District 170 | Ottawa Elementary School District 141 |
| Chicago Public Schools | Ottawa Township High School District 140 |
| Chicago Ridge School District 127.5 | Palestine Community Unit School District 3 |
| Christopher Unit School District 99 | Palos Heights School District 128 |
| Cicero School District 99 | Palos School District 118 |
| Cissna Park School Community Unit School District 6 | Pana Community Unit School District 8 |
| Clinton Community Unit School District 15 | Panhandle School District 2 |
| Coal City Community Unit School District 1 | Paris Community Unit School District 4 |
| Cobden Unit School District 17 | Paris Union School District 95 |
| Collinsville Community Unit School District 10 | Park Forest-Chicago Heights School District 163 |
| Colona School District 190 | Park Ridge-Niles School District 64 |
| Columbia Community Unit School District 4 | Paw Paw Community Unit School District 271 |
| Community Consolidated School District 146 | Pawnee Community Unit School District 11 |
| Community Consolidated School District 15 | Paxton Buckley Loda Community Unit School District 10 |
| Community Consolidated School District 168 | Payson Community Unit School District 1 |
| Community Consolidated School District 180 | Pearl City School Community Unit School District 200 |
| Community Consolidated School District 181 | Pecatonica Community Unit School District 321 |
| Community Consolidated School District 21 | Pekin Community High School District 303 |
| Community Consolidated School District 46 | Pekin Public School District 108 |
| Community Consolidated School District 59 | Pennoyer School District 79 |
| Community Consolidated School District 89 | Peoria Heights School District 325 |
| Community Consolidated School District 93 | Peoria Public Schools |
| Community High School District 117 | Peotone Community Unit School District 207U |
| Community High School District 128 | Peru Elementary School District 124 |
| Community High School District 155 | Pikeland Community Unit School District 10 |
| Community High School District 218 | Pinckneyville Community High School District 101 |
| Community High School District 94 | Pinckneyville School District 50 |
| Community High School District 99 | Plainfield School District 202 |
| Community Unit School District 20 | Plano Community Unit School District 88 |
| Community Unit School District 200 | Pleasant Hill Community Unit School District 3 |
| Community Unit School District 201 | Pleasant Hill District 69 |
| Community Unit School District 3 | Pleasant Plains Community Unit School District 8 |
| Community Unit School District 300 | Pleasant Valley School District 62 |
| Community Unit School District 4 | Pleasantdale School District 107 |
| Consolidated High School District 230 | Polo School District |
| Cook County School District 104 | Pontiac Community Consolidated School District 429 |
| Cook County School District 130 | Pontiac Township High School District 90 |
| Country Club Hills School District 160 | Pontiac-William Holliday School District 105 |
| Cowden-Herrick Community Unit School District 3A | Porta Community Unit School District 202 |
| Crab Orchard Community Unit School District 3 | Posen-Robbins School District 143-5 |
| Creston Community Consolidated School District 161 | Potomac Community Unit School District 10 |
| Crete-Monee School District 201-U | Prairie Central Community Unit School District 8 |
| Creve Coeur School District 76 | Prairie Grove School District 46 |
| Crystal Lake Community Consolidated School District 47 | Prairie Hill School District 133 |
| Cumberland Community Unit School District 77 | Prairie-Hills Elementary School District 144 |
| Cypress School District 64 | Prairieview-Ogden Community Consolidated School District 197 |
| Dakota Community Unit School District 201 | Princeton High School District 500 |
| Dallas Elementary School District | Princeton School District 115 |
| Damiansville School District 62 | Princeville Community Unit School District 326 |
| Danville School District 118 | Prophetstown-Lyndon-Tampico Community Unit School District 3 |
| Darien Public Schools District 61 | Prospect Heights School District 23 |
| Decatur Public Schools | Proviso Township High Schools District 209 |
| Deer Creek-Mackinaw Community Unit School District 701 | Putnam County Community Unit School District 535 |
| Deerfield Public Schools District 109 | Queen Bee School District 16 |
| DeKalb Community Unit School District 428 | Quincy Public Schools |
| DeLand-Weldon Community Unit School District 57 | Raccoon Consolidated School District 1 |
| Delavan Community Unit School District 703 | Ramsey Community Unit School District 204 |
| DePue Schools | Rankin School District 98 |
| Des Plaines School District 62 | Rantoul City School District 137 |
| DeSoto Consolidated School District 86 | Rantoul Township High School District 193 |
| Diamond Lake School District 76 | Reavis High School District 220 |
| Dieterich Community Unit School District 30 | Red Bud Community Unit School District 132 |
| Dimmick Consolidated School District 175 | Red Hill Community Unit School District 10 |
| District 45 | Reed-Custer Community Unit School District 255 |
| District 89 | Rhodes School District 84-5 |
| Dixon Public Schools | Rich Township High School District 227 |
| Dolton Riverdale School District 148 | Richland County Community Unit School District 1 |
| Dolton School District 149 | Richland Schools District 88A |
| Donovan Community Unit School District 3 | Richmond-Burton Community High School District 157 |
| Downers Grove Grade School District 58 | Ridgeland School District 122 |
| Dunlap Community Unit School District 323 | Ridgeview Community Unit School District 19 |
| DuPage High School District 88 | Ridgewood Community High School District 234 |
| DUPO Community Unit School District 196 | River Forest Public Schools |
| DuQuoin Community Unit School District 300 | River Grove School District 85-5 |
| Durand Community Unit School District 322 | River Ridge Community Unit School District 210 |
| Dwight Public Schools 232 | River Trails School District 26 |
| Earlville Community Unit School District 9 | Riverbend School District |
| East Alton School District 13 | Riverdale Community Unit School District 100 |
| East Alton-Wood River Community High School District 14 | Riverside Brookfield Township High School District 208 |
| East Aurora School District 131 | Riverside School District 96 |
| East Dubuque Unit School District 119 | Riverton Community Unit School District 14 |
| East Maine School District 63 | Riverview Community Consolidated School District 2 |
| East Moline School District 37 | Roanoke-Benson Community Unit School District 60 |
| East Peoria Community High School District 309 | Robein District 85 |
| East Peoria Elementary School District 86 | Robinson Community Unit School District 2 |
| East Prairie School District 73 | Rochelle Community Consolidated School District |
| East St. Louis School District 189 | Rochelle Township High School District 212 |
| Eastland Community Unit School District 308 | Rochester Community Unit School District 3A |
| Edgar County Community Unit School District 6 | Rock Falls Elementary School District 13 |
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| Edinburg Community Unit School District 4 | Rock Island – Milan School District 41 |
| Edwards County Community Unit School District 1 | Rockdale School District 84 |
| Edwardsville Community Unit School District 7 | Rockford Public Schools |
| Effingham Community Unit School District 40 | Rockridge School District |
| Egyptian School District | Rockton School District 140 |
| El Paso – Gridley Community Unit School District 11 | Rome Community Consolidated School District 2 |
| Elementary School District 159 | Rondout School District 72 |
| Elgin Area School District U-46 | Rooks Creek Community Consolidated School District 425 |
| Elmhurst Community Unit School District 205 | Roselle School District 12 |
| Elmwood Community Unit School District 322 | Rosemont School District 78 |
| Elmwood Park Community Unit School District 401 | Round Lake Community Unit School District 116 |
| Elwood Community Consolidated School District 203 | ROWVA Community Unit School District |
| Emmons School District 33 | Roxana Community Unit School District |
| Erie Community Unit School District 1 | Rutland Community Consolidated School District 230 |
| Eureka Community Unit School District 140 | Saint Joseph-Ogden High School District 305 |
| Evanston School District 65 | Salem Community High School District 600 |
| Evanston Township High School District 202 | Salem Elementary District 111 |
| Evergreen Park Community High School District 231 | Salt Creek School District 48 |
| Evergreen Park Elementary School District 124 | Salt Fork School District |
| Ewing-Northern Community Consolidated School District 115 | Sandoval Community Unit School District 501 |
| Fairfield Public School District 112 | Sandwich Community Unit School District 430 |
| Fairmont School District 89 | Sangamon Valley Community Unit School District 9 |
| Fairview South School District 72 | Saratoga Community Consolidated School District 60C |
| Farmington Central School District 265 | Saunemin Community Consolidated School District 438 |
| Fenton Community High School District 100 | Scales Mound Community Unit School District |
| Field Community Consolidated School District 3 | Schaumburg School District 54 |
| Fieldcrest Community Unit School District 6 | Schiller Park School District 81 |
| Fisher Community Unit School District 1 | Schuyler-Industry Community Unit School District 5 |
| Flanagan-Cornell Unit 74 | Scott-Morgan Community Unit School District 2 |
| Flora Community Unit School District 35 | Selmaville Community Consolidated School District 10 |
| Flossmoor School District 161 | Seneca Community Consolidated School District 170 |
| Ford Heights School District 169 | Seneca Township High School District 160 |
| Forest Park School District 91 | Serena Community Unit School District 2 |
| Forest Ridge School District 142 | Sesser-Valier Community Unit School District 196 |
| Forrestville Valley School District 221 | Shawnee Community Unit School District 84 |
| Fox Lake Grade School District 114 | Shelbyville Community Unit School District 4 |
| Fox River Grove School District 3 | Sherrard Community Unit School District 200 |
| Frankfort Community Consolidated School District 157-C | Shiloh Community Unit School District 1 |
| Frankfort Community Unit School District 168 | Shiloh Village School District 85 |
| Franklin Community Unit School District 1 | Shirland School District 134 |
| Franklin Park School District 84 | Signal Hill District 181 |
| Freeburg Community Consolidated School District 70 | Silvis School District |
| Freeburg Community High School District 77 | Skokie School District 68 |
| Freeport School District 145 | Skokie School District 73-5 |
| Fremont School District 79 | Skokie-Morton Grove School District 69 |
| Galatia Community Unit School District 1 | Smithton Community Consolidated School District 130 |
| Galesburg Community Unit School District 205 | Somonauk Community Unit School District 432 |
| Gallatin Community Unit School District 7 | South Beloit Community Unit School District 320 |
| Galva Community Unit School District 224 | South Central School District 401 |
| Gardner Community Consolidated School District 72C | South Holland School District 150 |
| Gardner-South Wilmington High School District 73 | South Holland School District 151 |
| Gavin School District 37 | South Pekin School District 137 |
| Geneseo Community Unit School District 228 | Southeastern Community Unit School District 337 |
| Geneva Community Unit School District 304 | Southwestern Community Unit School District No 9 |
| Genoa Kingston Community Unit School District 424 | Sparta Community Unit School District 140 |
| Georgetown-Ridge Farm Community Unit School District 4 | Spring Lake Community Consolidated School District 606 |
| Germantown Hills School District 69 | Spring Valley Community Consolidated School District 99 |
| Germantown School District 60 | Springfield Public Schools |
| Gibson City-Melvin-Sibley Community Unit School District 5 | St Charles Community Unit School District 303 |
| Gifford Community Consolidated School District 188 | St. Anne Community High School District 302 |
| Gillespie Community Unit School District 7 | St. Anne Grade School District 256 |
| Glen Ellyn School District 41 | St. Elmo Community Unit School District 202 |
| Glenbard Township High School District 87 | St. George Community Consolidated School District 258 |
| Glenbrook High Schools District 225 | St. Joseph Community Consolidated School District 169 |
| Glencoe District 35 | St. Rose School District 14-15 |
| Glenview School District 34 | Staunton Community Unit School District No 6 |
| Golf School District 67 | Steeleville School District 138 |
| Goreville Community Unit School District 1 | Steger School District 194 |
| Gower School District 62 | Sterling Community Unit School District 5 |
| Grand Ridge Community Consolidated School District 95 | Stewardson-Strasburg Community Unit School District 5A |
| Granite City Community Unit School District 9 | Stockton Community Unit School District 206 |
| Grant Community Consolidated School District 110 | Streator Elementary School District 44 |
| Grant Community High School District 124 | Streator Township High School District 40 |
| Grant Park Community Unit School District 6 | Sullivan School District |
| Grass Lake School District 36 | Summersville School District 79 |
| Grayslake Community High School District 127 | Summit Hill School District 161 |
| Grayville Community Unit School District 1 | Sunnybrook School District |
| Greenfield Community Unit School District 10 | Sunset Ridge School District 29 |
| Greenview Schools | Sycamore Community School District 427 |
| Griggsville-Perry Community Unit School District 4 | Taft Elementary School District 90 |
| Gurnee District 56 | Tamaroa Grade School District 5 |
| Hall High School District 502 | Taylorville Community Unit School District 3 |
| Hamilton County Unit School District 10 | Teutopolis Community Unit School District 50 |
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| Hampton School District 29 | Thomasboro Community Consolidated School District 130 |
| Harlem School District 122 | Thompsonville Community Unit School District 174 |
| Harmony Emge School District 175 | Thornton Fractional High School District 215 |
| Harrisburg Community Unit School District 3 | Thornton Township High Schools District 205 |
| Harrison School District 36 | Tonica Community Consolidated School District 79 |
| Hartsburg-Emden Community Unit School District 21 | Township High School District 113 |
| Harvard Community Unit School District 50 | Township High School District 211 |
| Harvey Public School District 152 | Township High School District 214 |
| Havana Community Unit School District 126 | Tremont Community Unit School District 702 |
| Hawthorn Community Consolidated School District 73 | Tri City Community Unit School District 1 |
| Henry-Senachwine Community Unit School District 5 | Tri-Point Community Unit School District 6J |
| Heritage Community Unit School District 8 | Tri-Valley Community Unit School District 3 |
| Herrin Community Unit School District 4 | Triad Community Unit School District 2 |
| Herscher Community Unit School District 2 | Trico Community Unit School District 176 |
| Heyworth Community Unit School District 4 | Triopia Community Unit School District 27 |
| Hiawatha Community Unit School District 426 | Troy Community Consolidated School District 30-C |
| High Mount School District 116 | Tuscola Community Unit School District 301 |
| Highland Community Unit School District 5 | Union Ridge School District 86 |
| Hillsboro Community School District 3 | Unit Seven Schools |
| Hillside School District 93 | United Community Unit School District 304 |
| Hinckley-Big Rock Community Unit School District 429 | United Township High School District 30 |
| Hinsdale Township High School District 86 | Unity Point Community Consolidated School District 140 |
| Hollis Consolidated School District 328 | Urbana School District 116 |
| Homer Community Consolidated School District 33C | Valley View School District |
| Homewood Flossmoor Community High School District 233 | Valmeyer Community Unit School District 3 |
| Homewood School District 153 | Vandalia Community Unit Schools 203 |
| Hononegah Community High School District 207 | Vienna Public School District 55 |
| Hoopeston Area School District 11 | Villa Grove Community Unit School District 302 |
| Huntley Community School District 158 | Virginia Community Unit School District 64 |
| Illini Bluffs School District 327 | VIT Community Unit School District 2 |
| Illini Central School District 189 | Wabash Community Unit School District 348 |
| Illini West High School District 307 | Wallace Community Consolidated School District 195 |
| Illinois Valley Central School District 321 | Waltham Elementary School District 185 |
| Indian Creek School District 425 | Waltonville Community Unit School District 1 |
| Indian Prairie School District 204 | Warren Community Unit School District 205 |
| Indian Springs School District 109 | Warren Township High School District 121 |
| Iroquois County Community Unit School District 9 | Warrensburg-Latham Community Unit School District 11 |
| Iroquois West Community Unit School District 10 | Warsaw Community Unit School District 316 |
| Irvington Community Consolidated School District 11 | Washington Community High School District 308 |
| Itasca School District 10 | Washington District 50 Schools |
| J. Sterling Morton High School District 201 | Washington Grade School District 52 |
| Jacksonville School District 117 | Waterloo Community Unit School District 5 |
| Jasper County Schools | Wauconda Community Unit School District 118 |
| Jersey Community Unit School District 100 | Waukegan Community Unit School District 60 |
| Johnsburg School District 12 | Waverly Community Unit School District 6 |
| Johnston City Community Unit School District 1 | Wayne City Community Unit School District 100 |
| Joliet Public Schools District 86 | Wesclin Community Unit School District 3 |
| Joliet Township High School District 204 | West Aurora School District 129 |
| Joppa Maple-Grove Unit District 38 | West Carroll Community Unit School District 314 |
| Kaneland Community Unit School District 302 | West Central Community Unit School District 235 |
| Kankakee School District 111 | West Chicago Elementary School District 33 |
| Keeneyville School District 20 | West Harvey-Dixmoor School District 147 |
| Kenilworth School District 38 | West Lincoln-Broadwell School District 92 |
| Kewanee Community Unit School District 229 | West Northfield School District 31 |
| Kildeer Countryside Community Consolidated School District 96 | West Prairie Community Unit School District 103 |
| Kings Consolidated School District 144 | West Washington Co Community Unit School District 10 |
| Kinnikinnick Community Consolidated School District 131 | Westchester Public Schools |
| Kirby School District 140 | Western Community Unit School District 12 |
| Knoxville Community Unit School District 202 | Western Springs School District 101 |
| Komarek School District 94 | Westville School District 2 |
| La Grange School District 102 | Wethersfield School District |
| La Grange School District 105 | Whiteside School District 115 |
| La Moille Community Unit School District 303 | Will County School District 92 |
| La Salle Elementary School District 122 | Williamsfield Community Unit School District 210 |
| Ladd Community Consolidated School District 94 | Williamsville-Sherman Community Unit School District 15 |
| LaGrange Highlands School District 106 | Willow Spring School District 108 |
| Lake Bluff Schools District 65 | Wilmette Public Schools |
| Lake Forest Community High School District 115 | Wilmington School District 209-U |
| Lake Forest School District 67 | Winchester Community Unit School District 1 |
| Lake Park High School District 108 | Winfield School District 34 |
| Lake Villa Community Consolidated School District 41 | Winnebago Community Unit School District 323 |
| Lake Zurich Community Unit School District | Winnetka Public Schools District 36 |
| Lansing School District 158 | Winthrop Harbor School District 1 |
| Laraway Community Consolidated School District 70C | Wolcott School District 154 |
| LaSalle-Peru Township High School District 120 | Wolf Branch School District 113 |
| Lebanon Community Unit School District 9 | Wood Dale School District 7 |
| Leland Community Unit School District 1 | Wood River-Hartford School District 15 |
| Lemont High School District 210 | Woodland School Community Unit School District 5 |
| Lemont-Bromberek Combined School District 113A | Woodland School District 50 |
| Lena-Winslow School District 202 | Woodlawn Unit School District 209 |
| LeRoy School District 2 | Woodridge School District 68 |
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| Lewistown Community Unit School District 97 | Woodstock Community Unit School District 200 |
| Lexington Community Unit School District 7 | Worth School District 127 |
| Leyden High School District 212 | Yorkville Community Unit School District 115 |
| Liberty Community Unit School District 2 | Zeigler-Royalton Community Unit School District 188 |
| Libertyville District 70 | Zion Elementary School District 6 |
| Lick Creek Community Consolidated School District 16 | Zion-Benton Township High School District 126 |
| Limestone Community High School District 310 | |
| Limestone Walters School District 316 | |
| Lincoln Community High School District 404 | |
| Lincoln Elementary School District 156 | |
| Lincoln Elementary School District 27 | |
| Lincoln-Way Community High School District 210 | |
| Lincolnshire-Prairie View School District 103 | |
| Lincolnwood School District 74 | |
| Lindop School District 92 | |
| Lisbon Grade School District 90 | |
| Lisle District 202 | |
| Litchfield Community Unit School District 12 | |
| Lockport Township High School District 205 | |
| Lombard School District 44 | |
| Lostant Community Unit School District 425 | |
| Lowpoint Washburn District 21 | |
| Ludlow Community Consolidated School District 142 | |
| Lyons School District 103 | |
| Lyons Township High School District 204 | |
