| Rank | Air Quality Index ▼ | School District / Population |
| 1. | 52.4 | Triad Community Unit School District 2 / 21,195 |
| 1. | 52.4 | St. Rose School District 14-15 / 1,464 |
| 3. | 52.3 | Collinsville Community Unit School District 10 / 48,076 |
| 3. | 52.3 | Aviston School District 21 / 2,837 |
| 3. | 52.3 | Granite City Community Unit School District 9 / 43,198 |
| 6. | 52.1 | Madison Community Unit School District 12 / 4,892 |
| 7. | 51.8 | Addison School District 4 / 38,180 |
| 8. | 51.4 | Maywood-Melrose Park-Broadview School District 89 / 44,483 |
| 9. | 51.2 | Bellwood School District 88 / 23,074 |
| 9. | 51.2 | Proviso Township High School District 209 / 126,972 |
| 9. | 51.2 | Berkeley School District 87 / 22,520 |
| 12. | 51.1 | Elmhurst School District 205 / 47,454 |
| 12. | 51.1 | Salt Creek School District 48 / 8,237 |
| 12. | 51.1 | Butler School District 53 / 4,839 |
| 12. | 51.1 | Hillside School District 93 / 5,124 |
| 16. | 50.6 | Glen Ellyn Community Consolidated School District 89 / 21,874 |
| 16. | 50.6 | Rhodes School District 84-5 / 4,870 |
| 18. | 50.5 | Mannheim School District 83 / 21,174 |
| 19. | 50.4 | River Grove School District 85-5 / 7,881 |
| 19. | 50.4 | Franklin Park School District 84 / 11,086 |
| 19. | 50.4 | Elmwood Park Community Unit School District 401 / 24,960 |
| 19. | 50.4 | Union Ridge School District 86 / 6,529 |
| 19. | 50.4 | Leyden Community High School District 212 / 64,439 |
| 24. | 50.3 | Forest Park School District 91 / 14,010 |
| 24. | 50.3 | Lombard School District 44 / 35,594 |
| 24. | 50.3 | Berwyn North School District 98 / 26,086 |
| 24. | 50.3 | Villa Park School District 45 / 36,938 |
| 24. | 50.3 | DuPage High School District 88 / 83,355 |
| 24. | 50.3 | River Forest School District 90 / 11,211 |
| 30. | 50.1 | Westchester School District 92-5 / 16,049 |
| 30. | 50.1 | Hinsdale Community Consolidated School District 181 / 26,135 |
| 30. | 50.1 | Riverside Brookfield Township School District 208 / 29,204 |
| 30. | 50.1 | Central Stickney School District 110 / 3,481 |
| 30. | 50.1 | Western Springs School District 101 / 10,072 |
| 30. | 50.1 | LaGrange Highlands School District 106 / 9,718 |
| 30. | 50.1 | Lyons Township High School District 204 / 69,702 |
| 30. | 50.1 | Berwyn South School District 100 / 30,676 |
| 30. | 50.1 | Cicero School District 99 / 84,481 |
| 30. | 50.1 | Brookfield School District 95 / 10,872 |
| 30. | 50.1 | Riverside School District 96 / 13,991 |
| 30. | 50.1 | Komarek School District 94 / 4,969 |
| 30. | 50.1 | Lindop School District 92 / 4,011 |
| 30. | 50.1 | Lyons School District 103 / 22,581 |
| 30. | 50.1 | LaGrange School District 102 / 25,438 |
| 30. | 50.1 | J. Sterling Morton High School District 201 / 159,527 |
| 30. | 50.1 | Grayville Community Unit School District 1 / 1,960 |
| 47. | 50.0 | Oak Park Elementary School District 97 / 51,988 |
| 47. | 50.0 | Oak Park and River Forest District 200 / 63,199 |
| 49. | 49.8 | Wood Dale School District 7 / 10,312 |
| 49. | 49.8 | Ridgewood Community High School District 234 / 19,122 |
| 49. | 49.8 | Fenton Community High School District 100 / 30,212 |
| 49. | 49.8 | Central School District 104 / 4,970 |
| 49. | 49.8 | Norridge School District 80 / 12,089 |
| 49. | 49.8 | Schiller Park School District 81 / 13,509 |
| 49. | 49.8 | O'Fallon Community Consolidated School District 90 / 29,590 |
| 49. | 49.8 | O'Fallon Township High School District 203 / 40,469 |
| 49. | 49.8 | Bensenville School District 2 / 19,900 |
| 49. | 49.8 | Pennoyer School District 79 / 5,894 |
| 49. | 49.8 | Shiloh Village School District 85 / 4,953 |
| 49. | 49.8 | Wesclin Community Unit School District 3 / 7,971 |
| 49. | 49.8 | Lebanon Community Unit School District 9 / 5,305 |
| 62. | 49.6 | Pontiac-William Holliday School District 105 / 7,796 |
| 63. | 49.5 | Glen Ellyn School District 41 / 29,772 |
| 64. | 49.4 | Venice Community Unit School District 3 / 688 |
| 65. | 49.2 | Brooklyn Community Unit School District 188 / 807 |
| 66. | 49.1 | Skokie-Fairview School District 72 / 6,315 |
| 66. | 49.1 | Rosemont Elementary School District 78 / 2,309 |
| 66. | 49.1 | Niles Elementary School District 71 / 7,998 |
| 69. | 48.9 | Burbank School District 111 / 29,957 |
| 69. | 48.9 | Maercker School District 60 / 18,009 |
| 69. | 48.9 | Westmont Community Unit School District 201 / 12,454 |
| 69. | 48.9 | Summit School District 104 / 12,603 |
| 69. | 48.9 | Downers Grove Grade School District 58 / 51,933 |
| 69. | 48.9 | Pleasantdale School District 107 / 8,287 |
| 69. | 48.9 | Community Consolidated School District 180 / 6,926 |
| 69. | 48.9 | North Palos School District 117 / 28,444 |
| 69. | 48.9 | Woodridge School District 68 / 33,075 |
| 69. | 48.9 | Reavis Township High School District 220 / 33,438 |
| 69. | 48.9 | Indian Springs School District 109 / 24,678 |
| 69. | 48.9 | Gower School District 62 / 9,602 |
| 69. | 48.9 | Community High School District 99 / 110,458 |
| 69. | 48.9 | Argo Community High School District 217 / 40,495 |
| 69. | 48.9 | Willow Springs School District 108 / 3,450 |
| 69. | 48.9 | LaGrange School District 105 / 12,573 |
| 69. | 48.9 | Darien School District 61 / 16,179 |
| 69. | 48.9 | Hinsdale Township High School District 86 / 75,716 |
| 87. | 48.7 | Cass School District 63 / 8,304 |
| 87. | 48.7 | Wabash Community Unit School District 348 / 10,610 |
| 87. | 48.7 | Lemont Township High School District 210 / 25,611 |
| 87. | 48.7 | Lemont-Bromberek Combined School District 113A / 25,222 |
| 87. | 48.7 | Center Cass School District 66 / 11,561 |
| 92. | 48.6 | Allendale Community Consolidated School District 17 / 1,120 |
| 93. | 48.5 | Thornton Township High School District 205 / 114,889 |
| 93. | 48.5 | Calumet Public School District 132 / 10,701 |
| 93. | 48.5 | Dolton School District 148 / 22,436 |
| 93. | 48.5 | General George Patton School District 133 / 2,020 |
| 93. | 48.5 | Prairie-Hills Elementary School District 144 / 22,837 |
| 93. | 48.5 | West Harvey-Dixmoor Public School District 147 / 9,990 |
| 93. | 48.5 | Harvey School District 152 / 16,747 |
| 100. | 48.5 | Consolidated High School District 230 / 157,389 |
| 100. | 48.5 | Palos Community Consolidated School District 118 / 23,432 |
| 100. | 48.5 | Kirby School District 140 / 35,585 |
| 100. | 48.5 | Orland School District 135 / 56,257 |
| 100. | 48.5 | Chicago Public School District 299 / 2,712,608 |
| 105. | 48.4 | Edwards County Community Unit School District 1 / 5,879 |
| 106. | 48.3 | Community Consolidated School District 146 / 26,437 |
| 106. | 48.3 | Alsip-Hazelgreen-Oaklawn School District 126 / 17,417 |
| 106. | 48.3 | Chicago Ridge School District 127-5 / 13,466 |
| 106. | 48.3 | Glenbard Township High School District 87 / 166,784 |
| 106. | 48.3 | South Holland School District 151 / 13,930 |
| 106. | 48.3 | Hazel Crest School District 152-5 / 8,175 |
| 106. | 48.3 | Palos Heights School District 128 / 9,655 |
| 106. | 48.3 | Evergreen Park Community High School District 231 / 19,924 |
| 106. | 48.3 | Ridgeland School District 122 / 21,499 |
| 106. | 48.3 | Worth School District 127 / 11,338 |
| 106. | 48.3 | Evergreen Park Elementary School District 124 / 19,924 |
| 106. | 48.3 | Oak Lawn-Hometown School District 123 / 35,152 |
| 106. | 48.3 | Oak Lawn Community High School District 229 / 40,564 |
| 119. | 48.2 | Homer Community Consolidated School District 33C / 29,870 |
| 120. | 48.1 | Country Club Hills School District 160 / 12,495 |
| 120. | 48.1 | Elementary School District 159 / 19,971 |
| 122. | 48.0 | Frankfort Community Consolidated School District 157C / 17,716 |
| 122. | 48.0 | Lincoln Way Community High School District 210 / 105,219 |
| 122. | 48.0 | Itasca School District 10 / 9,040 |
| 122. | 48.0 | Summit Hill School District 161 / 23,646 |
| 122. | 48.0 | Mokena School District 159 / 17,456 |
| 127. | 47.9 | Homewood-Flossmoor Community High School District 233 / 38,929 |
| 127. | 47.9 | Burnham School District 154-5 / 1,658 |
| 127. | 47.9 | Dolton School District 149 / 27,206 |
| 127. | 47.9 | Thornton School District 154 / 3,250 |
| 127. | 47.9 | Edwardsville Community Unit School District 7 / 51,131 |
| 127. | 47.9 | Flossmoor School District 161 / 21,927 |
| 127. | 47.9 | Homewood School District 153 / 16,461 |
| 134. | 47.8 | Forest Ridge School District 142 / 16,467 |
| 134. | 47.8 | Atwood Heights School District 125 / 7,926 |
| 134. | 47.8 | Community High School District 218 / 121,995 |
| 134. | 47.8 | Arbor Park School District 145 / 12,821 |
| 134. | 47.8 | Bremen Community High School District 228 / 94,083 |
| 134. | 47.8 | Posen-Robbins Elementary School District 143-5 / 12,155 |
| 134. | 47.8 | Midlothian School District 143 / 15,241 |
| 134. | 47.8 | Cook County School District 130 / 30,726 |
| 134. | 47.8 | East St. Louis School District 189 / 37,689 |
| 143. | 47.7 | Bond County Community Unit School District 2 / 13,391 |
| 143. | 47.7 | High Mount School District 116 / 4,027 |
| 143. | 47.7 | Belle Valley School District 119 / 9,582 |
| 143. | 47.7 | Wolf Branch School District 113 / 7,789 |
| 143. | 47.7 | Highland Community Unit School District 5 / 18,392 |
| 143. | 47.7 | Grant Community Consolidated School District 110 / 7,600 |
| 143. | 47.7 | Mascoutah Community Unit School District 19 / 17,996 |
| 143. | 47.7 | Whiteside School District 115 / 12,608 |
| 151. | 47.6 | Carmi-White County Community Unit School District 5 / 9,150 |
| 151. | 47.6 | Lincolnwood School District 74 / 12,653 |
| 151. | 47.6 | Skokie School District 73-5 / 9,719 |
| 151. | 47.6 | East Prairie School District 73 / 4,698 |
| 155. | 47.5 | Lisle Community Unit School District 202 / 13,791 |
| 155. | 47.5 | Belleville School District 118 / 37,394 |
| 155. | 47.5 | Fairfield Community High School District 225 / 10,034 |
| 155. | 47.5 | Fairfield Public School District 112 / 6,126 |
| 155. | 47.5 | Norris City-Omaha-Enfield Community Unit School District 3 / 4,586 |
| 155. | 47.5 | Hamilton County Community Unit School District 10 / 7,794 |
| 155. | 47.5 | New Hope Community Consolidated School District 6 / 1,512 |
| 162. | 47.5 | Signal Hill School District 181 / 3,481 |
| 162. | 47.5 | Belleville Township High School District 201 / 108,125 |
| 162. | 47.5 | Harmony Emge School District 175 / 10,158 |
| 165. | 47.4 | Cahokia Community Unit School District 187 / 18,889 |
| 165. | 47.4 | Brussels Community Unit School District 42 / 1,250 |
| 165. | 47.4 | Wayne City Community Unit School District 100 / 3,702 |
| 168. | 47.3 | Dupo Community Unit School District 196 / 7,209 |
| 168. | 47.3 | Niles Township Community High School District 219 / 96,278 |
| 168. | 47.3 | Skokie School District 69 / 18,561 |
| 168. | 47.3 | Alton Community Unit School District 11 / 48,514 |
| 168. | 47.3 | Maine Township High School District 207 / 146,026 |
| 168. | 47.3 | Park Ridge Consolidated Community School District 64 / 40,764 |
| 174. | 47.2 | Millstadt Consolidated Community School District 160 / 8,650 |
| 175. | 47.1 | East Alton School District 13 / 7,620 |
| 175. | 47.1 | East Alton-Wood River Community High School District 14 / 13,730 |
| 175. | 47.1 | Bethalto Consolidated Unit School District 8 / 15,879 |
| 175. | 47.1 | Jasper Community Consolidated School District 17 / 1,457 |
| 175. | 47.1 | Lawrence County Community Unit District 20 / 7,744 |
| 175. | 47.1 | Bunker Hill Community Unit School District 8 / 4,468 |
| 175. | 47.1 | Red Hill Community Unit School District 10 / 9,035 |
| 175. | 47.1 | West Washington County Community Unit District 10 / 4,012 |
| 183. | 46.9 | Damiansville School District 62 / 756 |
| 183. | 46.9 | Albers School District 63 / 1,409 |
| 183. | 46.9 | Bartelso School District 57 / 1,292 |
| 183. | 46.9 | Germantown School District 60 / 1,714 |
| 187. | 46.8 | North Wayne Community Unit School District 200 / 2,556 |
| 187. | 46.8 | Central Community High School District 71 / 16,730 |
| 187. | 46.8 | Breese School District 12 / 7,258 |
| 187. | 46.8 | Roxana Community Unit School District 1 / 12,372 |
| 187. | 46.8 | Carlyle Community Unit School District 1 / 9,775 |
| 187. | 46.8 | Flora Community Unit School District 35 / 8,030 |
| 187. | 46.8 | Staunton Community Unit School District 6 / 8,400 |
| 187. | 46.8 | Wood River-Hartford Elementary School District 15 / 6,110 |
| 187. | 46.8 | Geff Community Consolidated School District 14 / 939 |
| 187. | 46.8 | Waterloo Community Unit School District 5 / 17,772 |
| 197. | 46.7 | Vandalia Community Unit School District 203 / 11,080 |
| 197. | 46.7 | Southwestern Community Unit School District 9 / 8,981 |
| 197. | 46.7 | Clay City Community Unit District 10 / 2,505 |
| 197. | 46.7 | Mulberry Grove Community Unit School District 1 / 2,499 |
| 201. | 46.6 | Gillespie Community Unit School District 7 / 7,873 |
| 201. | 46.6 | Mount Olive Community Unit School District 5 / 3,362 |
| 201. | 46.6 | Hillsboro Community Unit School District 3 / 14,713 |
| 201. | 46.6 | St. Libory Consolidated School District 30 / 869 |
| 201. | 46.6 | Columbia Community Unit School District 4 / 12,542 |
| 201. | 46.6 | Smithton Community Consolidated School District 130 / 4,559 |
| 201. | 46.6 | Litchfield Community Unit School District 12 / 8,873 |
| 208. | 46.5 | Jersey Community Unit School District 100 / 20,185 |
| 208. | 46.5 | Hardin County Community Unit School District 1 / 4,226 |
| 208. | 46.5 | Eldorado Community Unit School District 4 / 7,286 |
| 208. | 46.5 | Carrollton Community Unit School District 1 / 4,147 |
| 208. | 46.5 | Hoyleton Consolidated School District 29 / 977 |
| 208. | 46.5 | Gallatin Community Unit School District 7 / 5,212 |
| 214. | 46.5 | Freeburg Community Consolidated School District 70 / 7,714 |
| 214. | 46.5 | Freeburg Community High School District 77 / 13,146 |
| 214. | 46.5 | East Richland Community Unit School District 1 / 14,132 |
| 214. | 46.5 | Opdyke-Belle Rive Community Consolidated School District 5 / 2,033 |
| 214. | 46.5 | West Richland Community Unit School District 2 / 2,010 |
| 214. | 46.5 | Carlinville Community Unit School District 1 / 9,633 |
| 220. | 46.4 | Pope County Community Unit School District 1 / 4,362 |
| 221. | 46.3 | Rome Community Consolidated School District 2 / 2,519 |
| 221. | 46.3 | Valmeyer Community Unit School District 3 / 2,579 |
| 221. | 46.3 | Calhoun Community Unit School District 40 / 3,447 |
| 221. | 46.3 | Centralia High School District 200 / 21,153 |
| 221. | 46.3 | Centralia School District 135 / 13,320 |
| 221. | 46.3 | Grand Prairie Community Consolidated School District 6 / 806 |
| 221. | 46.3 | Central City School District 133 / 2,019 |
| 221. | 46.3 | North Wamac School District 186 / 990 |
| 221. | 46.3 | Irvington County Community Unit School District 11 / 833 |
| 221. | 46.3 | Willow Grove School District 46 / 2,239 |
| 231. | 46.2 | Sandoval Community Unit School District 501 / 2,560 |
| 231. | 46.2 | Salem Community High School District 600 / 15,043 |
| 231. | 46.2 | Odin Community High School District 700 / 1,680 |
| 231. | 46.2 | Selmaville Community Consolidated School District 10 / 1,960 |
| 231. | 46.2 | Kell Consolidated School District 2 / 993 |
| 231. | 46.2 | Odin School District 122 / 1,702 |
| 231. | 46.2 | Patoka Community Unit School District 100 / 1,692 |
| 231. | 46.2 | Rich Township High School District 227 / 70,027 |
| 231. | 46.2 | Park Forest School District 163 / 15,658 |
| 231. | 46.2 | Raccoon Consolidated School District 1 / 2,489 |
| 231. | 46.2 | Matteson Elementary School District 162 / 25,667 |
| 231. | 46.2 | Brookwood School District 167 / 11,151 |
| 243. | 46.1 | New Lenox School District 122 / 38,889 |
| 244. | 46.0 | Galatia Community Unit School District 1 / 2,183 |
| 244. | 46.0 | North Greene Unit School District 3 / 6,089 |
| 244. | 46.0 | Lick Creek Community Consolidated School District 16 / 1,520 |
| 244. | 46.0 | Anna Community Consolidated School District 37 / 6,410 |
| 244. | 46.0 | Dongola School Unit District 66 / 2,027 |
| 244. | 46.0 | Anna Jonesboro Community High School District 81 / 10,764 |
| 244. | 46.0 | Greenfield Community Unit School District 10 / 3,094 |
| 244. | 46.0 | Brownstown Community Unit School District 201 / 1,961 |
| 244. | 46.0 | Harrisburg Community Unit School District 3 / 12,763 |
| 244. | 46.0 | Carrier Mills-Stonefort Community Unit School District / 2,962 |
| 244. | 46.0 | Jonesboro Community Consolidated School District 43 / 2,834 |
| 255. | 45.9 | Webber Township High School District 204 / 2,946 |
| 255. | 45.9 | Joppa-Maple Grove Unit District 38 / 1,492 |
| 255. | 45.9 | Bluford Community Consolidated School District 114 / 2,556 |
| 255. | 45.9 | Buncombe Consolidated School District 43 / 721 |
| 255. | 45.9 | Naperville Community Unit District 203 / 96,394 |
| 255. | 45.9 | Northwestern Community Unit School District 2 / 2,079 |
| 255. | 45.9 | Massac Unit School District 1 / 13,609 |
| 255. | 45.9 | Vienna High School District 133 / 8,921 |
| 255. | 45.9 | Cairo Community Unit School District 1 / 2,950 |
| 255. | 45.9 | Calumet City School District 155 / 11,610 |
| 255. | 45.9 | New Simpson Hill Consolidated District 32 / 2,765 |
| 255. | 45.9 | Cypress School District 64 / 888 |
| 255. | 45.9 | Century Community Unit School District 100 / 2,442 |
| 255. | 45.9 | Farrington Community Consolidated School District 99 / 621 |
| 255. | 45.9 | South Holland School District 150 / 10,183 |
| 255. | 45.9 | Vienna School District 55 / 4,547 |
| 271. | 45.8 | Thompsonville Community Unit School District 174 / 2,161 |
| 272. | 45.7 | Sandridge School District 172 / 4,425 |
| 272. | 45.7 | Beecher Community Unit School District 200U / 6,985 |
| 272. | 45.7 | Community Consolidated School District 168 / 10,352 |
| 272. | 45.7 | Hoover-Schrum Memorial School District 157 / 8,237 |
| 272. | 45.7 | Ford Heights School District 169 / 2,777 |
| 272. | 45.7 | Thornton Fractional Township High School District 215 / 60,994 |
| 272. | 45.7 | Lincoln Elementary School District 156 / 7,611 |
| 272. | 45.7 | Crab Orchard Community Unit School District 3 / 2,632 |
| 272. | 45.7 | Egyptian Community Unit School District 5 / 3,709 |
| 281. | 45.6 | Sunnybrook School District 171 / 10,897 |
| 281. | 45.6 | Meridian Community Unit School District 101 / 3,649 |
| 283. | 45.5 | Salem School District 111 / 8,695 |
| 283. | 45.5 | South Central Community Unit School District 401 / 5,051 |
| 285. | 45.5 | Will County School District 92 / 14,725 |
| 285. | 45.5 | Marion Community Unit School District 2 / 27,844 |
| 285. | 45.5 | Fairmont School District 89 / 3,876 |
| 285. | 45.5 | Lockport Township High School District 205 / 76,156 |
| 285. | 45.5 | Lockport School District 91 / 6,640 |
| 285. | 45.5 | Taft School District 90 / 3,740 |
| 291. | 45.4 | Steger School District 194 / 13,985 |
| 291. | 45.4 | Grant Park Community Unit School District 6 / 3,320 |
| 291. | 45.4 | Winchester Community Unit School District 1 / 3,769 |
| 291. | 45.4 | Plainfield School District 202 / 122,136 |
| 291. | 45.4 | Akin Community Consolidated School District 91 / 775 |
| 291. | 45.4 | Chaney-Monge School District 88 / 7,237 |
| 291. | 45.4 | Community Unit School District 200 / 78,843 |
| 291. | 45.4 | Crete-Monee Community Unit School District 201-U / 33,368 |
| 291. | 45.4 | Valley View Community Unit School District 365U / 92,995 |
| 291. | 45.4 | Chicago Heights School District 170 / 24,090 |
| 291. | 45.4 | Richland School District 88A / 9,948 |
| 302. | 45.3 | Lansing School District 158 / 22,864 |
| 302. | 45.3 | Johnston City Community Unit School District 1 / 7,321 |
| 302. | 45.3 | North Clay Community Unit School District 25 / 3,746 |
| 302. | 45.3 | Bloom Township High School District 206 / 64,695 |
| 306. | 45.2 | Indian Prairie Community Unit School District 204 / 128,486 |
| 307. | 45.1 | Manhattan School District 114 / 9,143 |
| 307. | 45.1 | Giant City Community Consolidated School District 130 / 2,678 |
| 307. | 45.1 | Carbondale Community High School District 165 / 37,544 |
| 307. | 45.1 | Trico Community Unit School District 176 / 6,317 |
| 307. | 45.1 | Chester Community Unit School District 139 / 11,183 |
| 307. | 45.1 | Herscher Community Unit School District 2 / 10,651 |
| 307. | 45.1 | Edgar County Community Unit District 6 / 2,415 |
| 314. | 45.0 | Zeigler-Royalton Community Unit School District 188 / 4,186 |
| 314. | 45.0 | Manteno Community Unit School District 5 / 12,114 |
| 314. | 45.0 | Benton Consolidated High School District 103 / 12,420 |
| 314. | 45.0 | Peotone Community Unit School District 207U / 10,749 |
| 314. | 45.0 | Cumberland Community Unit School District 77 / 6,411 |
| 314. | 45.0 | Christopher Community Unit School District 99 / 5,139 |
| 314. | 45.0 | Benton Community Consolidated School District 47 / 10,031 |
| 314. | 45.0 | Murphysboro Community Unit School District 186 / 15,544 |
| 314. | 45.0 | Elverado Community Unit School District 196 / 2,981 |
| 323. | 44.9 | Waverly Community Unit School District 6 / 1,885 |
| 323. | 44.9 | Casey-Westfield Community Unit School District 4C / 5,922 |
| 323. | 44.9 | Marshall Community Unit School District 2C / 8,115 |
| 323. | 44.9 | Panhandle Community Unit School District 2 / 2,280 |
| 323. | 44.9 | Carbondale Elementary School District 95 / 27,528 |
| 323. | 44.9 | Virden Community Unit School District 4 / 5,096 |
| 323. | 44.9 | Martinsville Community Unit School District 3C / 2,335 |
| 323. | 44.9 | Carterville Community Unit School District 5 / 11,927 |
| 323. | 44.9 | De Soto Consolidated School District 86 / 1,900 |
| 323. | 44.9 | Unity Point Community Consolidated School District 140 / 5,438 |
| 323. | 44.9 | Girard Community Unit School District 3 / 3,823 |
| 334. | 44.8 | Sparta Community Unit School District 140 / 8,407 |
| 334. | 44.8 | Prairie du Rocher Community Consolidated School District 134 / 973 |
| 334. | 44.8 | Herrin Community Unit School District 4 / 16,423 |
| 334. | 44.8 | Chester Non-High School District 122 / 973 |
| 334. | 44.8 | Red Bud Community Unit School District 132 / 7,965 |
| 334. | 44.8 | Frankfort Community Unit School District 168 / 11,868 |
| 334. | 44.8 | Steeleville Community Unit School District 138 / 3,126 |
| 341. | 44.7 | Nokomis Community Unit School District 22 / 3,925 |
| 341. | 44.7 | Du Quoin Community Unit School District 300 / 9,591 |
| 341. | 44.7 | Pinckneyville School District 50 / 6,531 |
| 341. | 44.7 | Pinckneyville Community High School District 101 / 10,799 |
| 341. | 44.7 | Scott-Morgan Consolidated Unit School District 2 / 1,485 |
| 341. | 44.7 | Iuka Community Consolidated School District 7 / 1,930 |
| 341. | 44.7 | Shawnee Community Unit School District 84 / 2,425 |
| 341. | 44.7 | Ramsey Community Unit School District 204 / 2,709 |
| 341. | 44.7 | Teutopolis Community Unit School District 50 / 5,323 |
| 341. | 44.7 | Community Consolidated School District 204 / 3,614 |
| 351. | 44.6 | Nashville Community High School District 99 / 8,905 |
| 351. | 44.6 | Coulterville Unit School District 1 / 1,711 |
| 351. | 44.6 | Cobden School Unit District 17 / 3,899 |
| 351. | 44.6 | Roanoke-Benson Community Unit School District 60 / 3,332 |
| 351. | 44.6 | Nashville Consolidated Community School District 49 / 5,710 |
| 351. | 44.6 | Oakdale Community Consolidated School District 1 / 714 |
| 351. | 44.6 | Eureka Community Unit District 140 / 9,835 |
| 358. | 44.5 | Newark Community Consolidated School District 66 / 2,809 |
| 358. | 44.5 | Paris Community Unit School District 4 / 3,997 |
| 358. | 44.5 | Paris-Union School District 95 / 8,469 |
| 358. | 44.5 | Newark Community High School District 18 / 3,879 |
| 358. | 44.5 | St. Elmo Community Unit School District 202 / 2,784 |
| 358. | 44.5 | Fieldcrest Community Unit School District 6 / 6,842 |
| 358. | 44.5 | Union School District 81 / 1,631 |
| 358. | 44.5 | Flanagan-Cornell District 74 / 1,727 |
| 358. | 44.5 | Earlville Community Unit School District 9 / 2,717 |
| 367. | 44.5 | Woodlawn Community High School District 205 / 3,230 |
| 367. | 44.5 | Clinton Community Unit School District 15 / 12,177 |
| 367. | 44.5 | Mount Vernon Township High School District 201 / 29,843 |
| 367. | 44.5 | Summersville School District 79 / 1,880 |
| 367. | 44.5 | Ewing Northern Community Consolidated District 115 / 1,710 |
| 367. | 44.5 | Ashley Community Consolidated School District 15 / 1,836 |
| 367. | 44.5 | Woodlawn Community Consolidated School District 4 / 2,771 |
| 367. | 44.5 | Bethel School District 82 / 1,072 |
| 367. | 44.5 | McClellan Community Consolidated School District 12 / 860 |
| 367. | 44.5 | Dodds Community Consolidated School District 7 / 1,374 |
| 367. | 44.5 | Mount Vernon School District 80 / 13,934 |
| 367. | 44.5 | Waltonville Community Unit School District 1 / 2,067 |
| 367. | 44.5 | Ina Community Consolidated School District 8 / 3,060 |
| 367. | 44.5 | Heyworth Community Unit School District 4 / 4,831 |
| 367. | 44.5 | Sesser-Valier Community Unit School District 196 / 4,212 |
| 367. | 44.5 | Palestine Community Unit School District 3 / 2,464 |
| 367. | 44.5 | Troy Community Consolidated School District 30C / 36,092 |
| 367. | 44.5 | Tamaroa School District 5 / 719 |
| 385. | 44.4 | Jacksonville School District 117 / 28,184 |
| 385. | 44.4 | Lisbon Community Consolidated School District 90 / 925 |
| 385. | 44.4 | Saratoga Community Consolidated School District 60C / 6,049 |
| 385. | 44.4 | Morris School District 54 / 11,448 |
| 385. | 44.4 | Franklin Community Unit School District 1 / 2,004 |
| 385. | 44.4 | Morris Community High School District 101 / 18,171 |
| 391. | 44.3 | Aurora East Unit School District 131 / 84,673 |
| 391. | 44.3 | Dieterich Community Unit School District 30 / 2,499 |
| 391. | 44.3 | Oblong Community Unit School District 4 / 3,764 |
| 391. | 44.3 | Oswego Community Unit School District 308 / 77,693 |
| 391. | 44.3 | Sandwich Community Unit School District 430 / 13,364 |
| 391. | 44.3 | Hutsonville Community Unit School District 1 / 2,100 |
| 391. | 44.3 | Marquardt School District 15 / 26,458 |
| 391. | 44.3 | Goreville Community Unit School District 1 / 3,882 |
| 391. | 44.3 | Jasper County Community Unit School District 1 / 9,430 |
| 400. | 44.2 | Reed Custer Community Unit School District 255U / 9,343 |
| 400. | 44.2 | Minooka Community High School District 111 / 38,611 |
| 400. | 44.2 | Plano Community Unit School District 88 / 11,378 |
| 400. | 44.2 | Yorkville Community Unit School District 115 / 30,038 |
| 400. | 44.2 | West Chicago School District 33 / 30,853 |
| 400. | 44.2 | El Paso-Gridley Community Unit School District 11 / 7,195 |
| 400. | 44.2 | Field Community Consolidated School District 3 / 2,768 |
| 400. | 44.2 | Elwood Community Consolidated School District 203 / 3,787 |
| 400. | 44.2 | Channahon School District 17 / 10,273 |
| 400. | 44.2 | Coal City Community Unit School District 1 / 11,131 |
| 400. | 44.2 | Minooka Community Consolidated School District 201 / 24,332 |
| 400. | 44.2 | Braceville School District 75 / 1,399 |
| 400. | 44.2 | Winfield School District 34 / 4,426 |
| 400. | 44.2 | Wilmington Community Unit School District 209U / 9,488 |
| 400. | 44.2 | Community High School District 94 / 41,834 |
| 415. | 44.1 | Auburn Community Unit School District 10 / 6,990 |
| 415. | 44.1 | Morrisonville Community Unit School District 1 / 1,682 |
| 415. | 44.1 | Evanston Community Consolidated School District 65 / 83,353 |
| 415. | 44.1 | Rockdale School District 84 / 2,240 |
| 415. | 44.1 | Joliet Township High School District 204 / 128,441 |
| 415. | 44.1 | Georgetown-Ridge Farm Consolidated Unit School District 4 / 6,788 |
| 415. | 44.1 | Laraway Community Consolidated School District 70C / 3,161 |
| 415. | 44.1 | Lexington Community Unit School District 7 / 3,063 |
| 415. | 44.1 | Robinson Community Unit School District 2 / 11,988 |
| 415. | 44.1 | Evanston Township High School District 202 / 83,353 |
| 415. | 44.1 | Keeneyville School District 20 / 14,535 |
| 415. | 44.1 | Kansas Community Unit School District 3 / 1,565 |
| 427. | 44.0 | Pawnee Community Unit School District 11 / 3,304 |
| 427. | 44.0 | Ball-Chatham Community Unit School District 5 / 27,509 |
| 427. | 44.0 | Community Unit School District 2 / 6,076 |
| 427. | 44.0 | Queen Bee School District 16 / 17,773 |
| 427. | 44.0 | Community Unit School District 16 / 6,213 |
| 427. | 44.0 | Marissa Community Unit School District 40 / 3,476 |
| 427. | 44.0 | New Athens Community Unit School District 60 / 3,561 |
| 427. | 44.0 | South Fork School District 14 / 2,601 |
| 427. | 44.0 | Hinckley-Big Rock Community Unit School District 429 / 4,715 |
| 427. | 44.0 | Community Consolidated School District 93 / 35,313 |
| 437. | 43.9 | Kaneland Community Unit School District 302 / 25,778 |
| 437. | 43.9 | Neoga Community Unit School District 3 / 5,140 |
| 437. | 43.9 | Somonauk Community Unit School District 432 / 5,089 |
| 437. | 43.9 | Leland Community Unit School District 1 / 1,738 |
| 437. | 43.9 | Aurora West Unit School District 129 / 75,509 |
| 442. | 43.8 | Benjamin School District 25 / 6,555 |
| 442. | 43.8 | St. Anne Community High School District 302 / 5,161 |
| 442. | 43.8 | Momence Community Unit School District 1 / 7,218 |
| 442. | 43.8 | Joliet Public School District 86 / 83,967 |
| 442. | 43.8 | Altamont Community Unit School District 10 / 4,959 |
| 442. | 43.8 | Donovan Community Unit School District 3 / 2,005 |
| 442. | 43.8 | Batavia Unit School District 101 / 31,774 |
| 442. | 43.8 | Pembroke Consolidated Community School District 259 / 1,971 |
| 450. | 43.7 | Mendota Township High School District 280 / 11,061 |
| 450. | 43.7 | Roselle School District 12 / 6,654 |
| 450. | 43.7 | Bourbonnais School District 53 / 23,144 |
| 450. | 43.7 | Medinah School District 11 / 7,119 |
| 450. | 43.7 | Iroquois County Community Unit School District 9 / 7,118 |
| 450. | 43.7 | Mendota Community Consolidated School District 289 / 11,018 |
| 450. | 43.7 | Pleasant Plains Community Unit School District 8 / 8,049 |
| 450. | 43.7 | Lake Park Community High School District 108 / 50,869 |
| 450. | 43.7 | Bloomingdale School District 13 / 13,521 |
| 459. | 43.6 | Springfield School District 186 / 113,609 |
| 459. | 43.6 | Huntley Consolidated School District 158 / 43,647 |
| 459. | 43.6 | Rossville-Alvin Community Unit School District 7 / 2,546 |
| 459. | 43.6 | New Trier Township High School District 203 / 60,357 |
| 459. | 43.6 | A-C Central Community Unit School District 262 / 2,574 |
| 459. | 43.6 | Community Unit School District 300 / 111,782 |
| 459. | 43.6 | Wilmette School District 39 / 26,102 |
| 459. | 43.6 | DeKalb Community Unit School District 428 / 52,506 |
| 459. | 43.6 | Kenilworth School District 38 / 3,006 |
| 459. | 43.6 | Skokie School District 68 / 20,236 |
| 459. | 43.6 | Lee Center Community Unit School District 271 / 1,617 |
| 470. | 43.5 | Cowden-Herrick Community Unit School District 3A / 2,582 |
| 470. | 43.5 | Charleston Community Unit School District 1 / 28,395 |
| 470. | 43.5 | Stewardson-Strasburg Community Unit District 5A / 2,404 |
| 470. | 43.5 | School District U-46 / 233,909 |
| 470. | 43.5 | Effingham Community Unit School District 40 / 20,319 |
| 470. | 43.5 | Milford Community Consolidated School District 280 / 3,975 |
| 470. | 43.5 | Windsor Community Unit School District 1 / 2,889 |
| 470. | 43.5 | Shelbyville Community Unit School District 4 / 7,911 |
| 470. | 43.5 | Beecher City Community Unit School District 20 / 2,571 |
| 470. | 43.5 | Central Community Unit School District 301 / 19,083 |
| 470. | 43.5 | Pana Community Unit School District 8 / 8,935 |
| 470. | 43.5 | Okaw Valley Community Unit School District 302 / 3,423 |
| 470. | 43.5 | Milford Township High School District 233 / 3,975 |
| 470. | 43.5 | Schaumburg Community Consolidated School District 54 / 133,914 |
| 470. | 43.5 | Dimmick Community Consolidated School District 175 / 1,173 |
| 470. | 43.5 | East Coloma School District 12 / 2,582 |
| 470. | 43.5 | Township High School District 211 / 236,447 |
| 470. | 43.5 | Odell Community Consolidated School District 435 / 1,308 |
| 470. | 43.5 | Deer Park Community Consolidated School District 82 / 718 |
| 470. | 43.5 | Sullivan Community Unit School District 300 / 7,387 |
| 490. | 43.5 | Wheeling Community Consolidated School District 21 / 66,232 |
| 490. | 43.5 | Glenview Community Consolidated School District 34 / 41,222 |
| 490. | 43.5 | West Northfield School District 31 / 9,898 |
| 490. | 43.5 | Golf Elementary School District 67 / 6,857 |
| 490. | 43.5 | Glencoe School District 35 / 8,696 |
| 490. | 43.5 | Mount Prospect School District 57 / 20,638 |
| 490. | 43.5 | Northbrook/Glenview School District 30 / 10,256 |
| 490. | 43.5 | Avoca School District 37 / 6,435 |
| 490. | 43.5 | Bannockburn School District 106 / 2,177 |
| 490. | 43.5 | River Trails School District 26 / 15,589 |
| 490. | 43.5 | Township High School District 113 / 58,572 |
| 490. | 43.5 | Des Plaines Community Consolidated School District 62 / 51,990 |
| 490. | 43.5 | Athens Community Unit School District 213 / 5,000 |
| 490. | 43.5 | Community Consolidated School District 59 / 66,255 |
| 490. | 43.5 | Prospect Heights School District 23 / 18,121 |
| 490. | 43.5 | Porta Community Unit School District 202 / 7,234 |
| 490. | 43.5 | Northbrook School District 28 / 14,644 |
| 490. | 43.5 | Sunset Ridge School District 29 / 4,110 |
| 490. | 43.5 | Northbrook Elementary School District 27 / 10,714 |
| 490. | 43.5 | Winnetka School District 36 / 12,008 |
| 490. | 43.5 | Deerfield School District 109 / 20,592 |
| 490. | 43.5 | Mattoon Community Unit School District 2 / 23,177 |
| 490. | 43.5 | Arlington Heights School District 25 / 51,105 |
| 490. | 43.5 | Township High School District 214 / 253,649 |
| 490. | 43.5 | Northfield Township High School District 225 / 86,734 |
| 490. | 43.5 | Morton Grove School District 70 / 9,241 |
| 490. | 43.5 | North Shore School District 112 / 35,827 |
| 490. | 43.5 | East Maine School District 63 / 46,677 |
| 518. | 43.4 | Bradley-Bourbonnais Consolidated High School District 307 / 39,974 |
| 518. | 43.4 | Rochester Community Unit School District 3A / 10,780 |
| 518. | 43.4 | Pontiac Community Consolidated School District 429 / 13,646 |
| 518. | 43.4 | Riverton Community Unit School District 14 / 7,959 |
| 518. | 43.4 | Flanagan-Cornell District 74 in Rooks Creek / 2 |
| 518. | 43.4 | St. Anne Consolidated Community School District 256 / 3,190 |
| 518. | 43.4 | Nelson Public School District 8 / 358 |
| 518. | 43.4 | Meredosia-Chambersburg Community Unit School District 11 / 1,669 |
| 518. | 43.4 | Rooks Creek Community Consolidated School District 425 / 625 |
| 518. | 43.4 | Bradley School District 61 / 13,139 |
| 518. | 43.4 | Central Community Unit School District 4 / 6,653 |
| 529. | 43.3 | Kankakee School District 111 / 32,510 |
| 529. | 43.3 | Geneva Community Unit School District 304 / 29,781 |
| 529. | 43.3 | Maroa-Forsyth Community Unit School District 2 / 6,417 |
| 529. | 43.3 | Bloomington School District 87 / 44,445 |
| 529. | 43.3 | St. Charles Community Unit School District 303 / 68,412 |
| 529. | 43.3 | Olympia Community Unit School District 16 / 11,585 |
| 529. | 43.3 | Steward Elementary School District 220 / 717 |
| 529. | 43.3 | Pleasant Hill Community Unit School District 3 / 1,977 |
| 529. | 43.3 | McLean County Unit School District 5 / 97,056 |
| 529. | 43.3 | St. George Community Consolidated School District 258 / 3,691 |
| 539. | 43.2 | Gardner Community Consolidated School District 72C / 1,663 |
| 539. | 43.2 | Streator Township High School District 40 / 18,378 |
| 539. | 43.2 | Allen Township Community Consolidated School District 65 / 820 |
| 539. | 43.2 | Grand Ridge Community Consolidated School District 95 / 2,792 |
| 539. | 43.2 | Rutland Community Consolidated School District 230 / 785 |
| 539. | 43.2 | Woodland Community Unit School District 5 / 2,753 |
| 539. | 43.2 | Seneca Township High School District 160 / 7,356 |
| 539. | 43.2 | Creston Community Consolidated School District 161 / 1,110 |
| 539. | 43.2 | Streator Elementary School District 44 / 16,545 |
| 539. | 43.2 | Cornell Community Consolidated School District 426 / 869 |
| 539. | 43.2 | Nettle Creek Community Consolidated School District 24C / 851 |
| 539. | 43.2 | Marseilles Elementary School District 150 / 4,120 |
| 539. | 43.2 | Mazon-Verona-Kinsman Elementary School District 2C / 2,799 |
| 539. | 43.2 | Dwight Common School District 232 / 6,628 |
| 539. | 43.2 | Gardner-South Wilmington Township High School District / 4,037 |
| 539. | 43.2 | Ottawa Township High School District 140 / 31,237 |
| 539. | 43.2 | Flanagan-Cornell District 74 in Cornell / 869 |
| 539. | 43.2 | Pontiac Township High School District 90 / 16,267 |
| 539. | 43.2 | Dwight Township High School District 230 / 6,859 |
| 539. | 43.2 | Flanagan-Cornell District 74 in Pontiac / 30 |
| 539. | 43.2 | Edinburg Community Unit School District 4 / 1,949 |
| 539. | 43.2 | Seneca Community Consolidated School District 170 / 3,778 |
| 539. | 43.2 | South Wilmington Consolidated School District 74 / 975 |
| 539. | 43.2 | Waltham Community Consolidated School District 185 / 2,429 |
| 539. | 43.2 | Wallace Community Consolidated School District 195 / 2,713 |
| 539. | 43.2 | Indian Creek Community Unit District 425 / 4,384 |
| 539. | 43.2 | Ottawa Elementary School District 141 / 19,628 |
| 539. | 43.2 | Miller Township Community Consolidated School District / 2,327 |
| 567. | 43.1 | West Lincoln-Broadwell Elementary School District 92 / 4,963 |
| 567. | 43.1 | Mount Pulaski Community Unit District 23 / 3,055 |
| 567. | 43.1 | La Moille Community Unit School District 303 / 1,794 |
| 567. | 43.1 | Cherry School District 92 / 564 |
| 567. | 43.1 | Triopia Community Unit School District 27 / 2,373 |
| 567. | 43.1 | Chester-East Lincoln Community Csd 61 / 5,048 |
| 567. | 43.1 | Lincoln Elementary School District 27 / 13,053 |
| 567. | 43.1 | Tri-City Community Unit School District 1 / 3,191 |
| 567. | 43.1 | Williamsville Community Unit School District 15 / 7,871 |
| 567. | 43.1 | Virginia Community Unit School District 64 / 2,023 |
| 567. | 43.1 | Lincoln Community High School District 404 / 23,979 |
| 578. | 43.0 | Hartsburg-Emden Community Unit School District 21 / 1,063 |
| 578. | 43.0 | Oglesby Elementary School District 125 / 4,771 |
| 578. | 43.0 | Ohio Community Consolidated School District 17 / 736 |
| 578. | 43.0 | Sycamore Community Unit School District 427 / 22,208 |
| 578. | 43.0 | LaSalle Elementary School District 122 / 8,895 |
| 578. | 43.0 | Peru Elementary School District 124 / 10,353 |
| 578. | 43.0 | Tonica Community Consolidated School District 79 / 1,393 |
| 578. | 43.0 | Ohio Community High School District 505 / 745 |
| 578. | 43.0 | LaSalle-Peru Township High School District 120 / 28,956 |
| 587. | 42.9 | Illinois Valley Central Unit School District 321 / 13,507 |
| 587. | 42.9 | Sangamon Valley Community Unit School District 9 / 4,136 |
| 587. | 42.9 | Dunlap Community Unit School District 323 / 21,236 |
| 587. | 42.9 | Barrington Community Unit School District 220 / 45,392 |
| 587. | 42.9 | Metamora Township High School District 122 / 16,360 |
| 587. | 42.9 | Fox River Grove Consolidated School District 3 / 4,266 |
| 587. | 42.9 | Kings Consolidated School District 144 / 949 |
| 587. | 42.9 | Princeville Community Unit School District 326 / 4,206 |
| 587. | 42.9 | Eswood Community Consolidated District 269 / 743 |
| 587. | 42.9 | Germantown Hills School District 69 / 6,329 |
| 587. | 42.9 | Washington School District 52 / 8,357 |
| 587. | 42.9 | Decatur School District 61 / 71,435 |
| 587. | 42.9 | Rochelle Township High School District 212 / 16,991 |
| 587. | 42.9 | Warrensburg-Latham Community Unit District 11 / 6,160 |
| 587. | 42.9 | Henry-Senachwine Consolidated Unit School District 5 / 3,383 |
| 587. | 42.9 | Lake Zurich Community Unit School District 95 / 31,709 |
| 587. | 42.9 | Midland Community Unit School District 7 / 5,510 |
| 587. | 42.9 | Meridian Community Unit School District 15 / 6,569 |
| 587. | 42.9 | Central A & M Community Unit School District 21 / 4,955 |
| 587. | 42.9 | Brimfield Community Unit School District 309 / 3,862 |
| 587. | 42.9 | Central School District 51 / 8,004 |
| 587. | 42.9 | Peoria Heights Community Unit School District 325 / 6,914 |
| 587. | 42.9 | Hoopeston Area Community Unit School District 11 / 7,178 |
| 587. | 42.9 | Rochelle Community Consolidated District 231 / 13,472 |
| 587. | 42.9 | Metamora Community Consolidated School District 1 / 7,045 |
| 587. | 42.9 | Mount Zion Community Unit School District 3 / 12,245 |
| 587. | 42.9 | Washington Community High School District 308 / 23,857 |
| 587. | 42.9 | Leepertown Community Consolidated School District 175 / 398 |
| 587. | 42.9 | Riverview Consolidated Community School District 2 / 2,986 |
| 616. | 42.8 | East Peoria Community High School District 309 / 26,544 |
| 616. | 42.8 | Saunemin Community Consolidated School District 438 / 908 |
| 616. | 42.8 | Community High School District 155 / 96,008 |
| 616. | 42.8 | Norwood Elementary School District 63 / 3,616 |
| 616. | 42.8 | Oak Grove School District 68 / 3,692 |
| 616. | 42.8 | New Holland-Middletown Elementary School District 88 / 915 |
| 616. | 42.8 | Elmwood Community Unit School District 322 / 3,872 |
| 616. | 42.8 | Lowpoint-Washburn Community Unit School District 21 / 2,511 |
| 616. | 42.8 | District 50 Schools / 7,496 |
| 616. | 42.8 | Taylorville Community Unit School District 3 / 18,760 |
| 616. | 42.8 | Griggsville-Perry Community Unit School District 4 / 2,079 |
| 616. | 42.8 | Greenview Community Unit School District 200 / 1,692 |
| 616. | 42.8 | Morton Community Unit School District 709 / 18,942 |
| 616. | 42.8 | Bartonville School District 66 / 2,549 |
| 616. | 42.8 | Limestone Community High School District 310 / 22,599 |
| 616. | 42.8 | Pleasant Hill School District 69 / 1,831 |
| 616. | 42.8 | Bement Community Unit School District 5 / 2,521 |
| 616. | 42.8 | Crystal Lake Community Consolidated School District 47 / 62,372 |
| 616. | 42.8 | Cerro Gordo Community Unit School District 100 / 2,903 |
| 616. | 42.8 | Pikeland Community Unit School District 10 / 8,684 |
| 616. | 42.8 | Creve Coeur School District 76 / 6,406 |
| 616. | 42.8 | Pleasant Valley School District 62 / 4,868 |
| 616. | 42.8 | Robein School District 85 / 1,990 |
| 616. | 42.8 | Lostant Community Unit School District 425 / 748 |
| 616. | 42.8 | Monticello Community Unit School District 25 / 8,965 |
| 616. | 42.8 | Monroe School District 70 / 3,195 |
| 616. | 42.8 | Prairie Central Community Unit School District 8 / 11,089 |
| 616. | 42.8 | Prairie Grove Community School District 46 / 7,259 |
| 616. | 42.8 | Peoria School District 150 / 101,620 |
| 616. | 42.8 | Cary Community Consolidated School District 26 / 22,111 |
| 616. | 42.8 | Tri-Point Community Unit School District 6-J / 3,173 |
| 616. | 42.8 | Atwood-Hammond Community Unit School District 39 / 2,444 |
| 616. | 42.8 | Putnam County Community Unit School District 535 / 5,514 |
| 616. | 42.8 | Lovington Community Unit School District 303 / 1,843 |
| 616. | 42.8 | Dixon Unit School District 170 / 22,133 |
| 616. | 42.8 | East Peoria School District 86 / 18,966 |
| 616. | 42.8 | Mahomet-Seymour Community Unit School District 3 / 14,271 |
| 616. | 42.8 | DeLand-Weldon Community Unit School District 57 / 1,517 |
| 616. | 42.8 | Argenta-Oreana Community Unit School District 1 / 3,854 |
| 616. | 42.8 | Deer Creek-Mackinaw Community Unit School District 701 / 5,807 |
| 616. | 42.8 | Limestone Walters Community Consolidated School District 316 / 2,067 |
| 657. | 42.7 | Urbana School District 116 / 50,963 |
| 657. | 42.7 | Villa Grove Community Unit School District 302 / 3,973 |
| 657. | 42.7 | Harvard Community Unit School District 50 / 13,486 |
| 657. | 42.7 | Arcola Consolidated Unit School District 306 / 4,441 |
| 657. | 42.7 | Marengo-Union Elementary Consolidated District 165 / 10,050 |
| 657. | 42.7 | Arthur Community Unit School District 305 / 7,681 |
| 657. | 42.7 | Riley Community Consolidated School District 18 / 3,641 |
| 657. | 42.7 | Neponset Community Consolidated District 307 / 820 |
| 657. | 42.7 | Tolono Community Unit School District 7 / 9,537 |
| 657. | 42.7 | St. Joseph Community Consolidated School District 169 / 6,142 |
| 657. | 42.7 | Tuscola Community Unit School District 301 / 5,759 |
| 657. | 42.7 | Champaign Community Unit School District 4 / 95,918 |
| 657. | 42.7 | St. Joseph-Ogden Community High School District 305 / 8,276 |
| 657. | 42.7 | Amboy Community Unit School District 272 / 5,036 |
| 657. | 42.7 | Prairieview-Ogden Community Consolidated School District 197 / 2,416 |
| 657. | 42.7 | Marengo Community High School District 154 / 13,691 |
| 673. | 42.6 | Aptakisic-Tripp Community Consolidated School District / 19,061 |
| 673. | 42.6 | Ladd Community Consolidated School District 94 / 1,817 |
| 673. | 42.6 | Le Roy Community Unit School District 2 / 4,619 |
| 673. | 42.6 | Stark County Community Unit School District 100 / 4,688 |
| 673. | 42.6 | Princeton High School District 500 / 12,376 |
| 673. | 42.6 | Genoa-Kingston Community Unit School District 424 / 9,139 |
| 673. | 42.6 | Bradford Community Unit School District 1 / 1,654 |
| 673. | 42.6 | Crescent Iroquois Community Unit School District 249 / 1,208 |
| 673. | 42.6 | Princeton Elementary School District 115 / 11,523 |
| 673. | 42.6 | Ridgeview Community Unit School District 19 / 3,350 |
| 673. | 42.6 | Tri-Valley Community Unit School District 3 / 4,882 |
| 684. | 42.5 | Tremont Community Unit School District 702 / 5,070 |
| 684. | 42.5 | Wauconda Community Unit School District 118 / 27,619 |
| 684. | 42.5 | Midwest Central Community Unit School District 191 / 6,175 |
| 684. | 42.5 | North Pekin-Marquette Heights School District 102 / 4,954 |
| 684. | 42.5 | Spring Valley Community Consolidated School District 99 / 6,000 |
| 684. | 42.5 | Pekin Public School District108 / 34,388 |
| 684. | 42.5 | Rankin Community School District 98 / 3,228 |
| 684. | 42.5 | South Pekin School District 137 / 1,830 |
| 684. | 42.5 | Spring Lake Community Consolidated School District 606 / 639 |
| 684. | 42.5 | Canton Union School District 66 / 17,530 |
| 684. | 42.5 | Delavan Community Unit School District 703 / 2,593 |
| 684. | 42.5 | Hall High School District 502 / 9,128 |
| 684. | 42.5 | Armstrong Township High School District 225 / 1,455 |
| 684. | 42.5 | Fulton County Community Unit School District 3 / 3,605 |
| 684. | 42.5 | Pekin Community High School District 303 / 45,857 |
| 684. | 42.5 | Blue Ridge Community Unit School District 18 / 5,126 |
| 684. | 42.5 | Illini Bluffs Community Unit School District 327 / 6,133 |
| 684. | 42.5 | Lewistown Community Unit School District 97 / 4,892 |
| 684. | 42.5 | Hollis Consolidated School District 328 / 781 |
| 684. | 42.5 | Beardstown Community Unit School District 15 / 7,941 |
| 684. | 42.5 | Ashton Community Unit School District 275 / 3,787 |
| 684. | 42.5 | Illini Central Community Unit School District 189 / 4,718 |
| 684. | 42.5 | Havana Community Unit School District 126 / 6,545 |
| 684. | 42.5 | Dalzell School District 98 / 740 |
| 708. | 42.5 | Thomasboro Community Consolidated School District 130 / 2,115 |
| 708. | 42.5 | Quincy School District 172 / 51,109 |
| 708. | 42.5 | Western Community Unit School District 12 / 3,670 |
| 708. | 42.5 | Camp Point Community Unit School District 3 / 4,876 |
| 708. | 42.5 | Heritage Community Unit School District 8 / 2,978 |
| 708. | 42.5 | Meridian Community Unit School District 223 / 8,741 |
| 708. | 42.5 | Bismarck-Henning Consolidated Unit School District / 5,065 |
| 708. | 42.5 | Catlin Community Unit School District 5 / 3,113 |
| 708. | 42.5 | Oakwood Community Unit School District 76 / 6,158 |
| 708. | 42.5 | Westville Community Unit School District 2 / 6,818 |
| 708. | 42.5 | Hiawatha Community Unit School District 426 / 3,168 |
| 708. | 42.5 | Payson Community Unit School District 1 / 3,956 |
| 708. | 42.5 | Armstrong-Ellis Consolidated School District 61 / 956 |
| 708. | 42.5 | Jamaica Community Unit School District 12 / 2,311 |
| 708. | 42.5 | Liberty Community Unit School District 2 / 3,201 |
| 708. | 42.5 | Potomac Community Unit School District 10 / 1,179 |
| 708. | 42.5 | Danville Community Consolidated School District 118 / 38,933 |
| 725. | 42.4 | Alden-Hebron School District 19 / 2,572 |
| 725. | 42.4 | Winthrop Harbor School District 1 / 6,682 |
| 725. | 42.4 | Zion Elementary School District 6 / 17,432 |
| 725. | 42.4 | Schuyler-Industry Community Unit School District 5 / 7,745 |
| 725. | 42.4 | Diamond Lake School District 76 / 8,664 |
| 730. | 42.3 | Zion-Benton Township High School District 126 / 44,560 |
| 730. | 42.3 | Gifford Community Consolidated School District 188 / 1,795 |
| 730. | 42.3 | Depue Community Unit School District 103 / 1,865 |
| 730. | 42.3 | Kinnikinnick Community Consolidated School District 131 / 13,664 |
| 730. | 42.3 | Hononegah Community High School District 207 / 32,556 |
| 735. | 42.2 | Rock Falls Elementary School District 13 / 8,878 |
| 735. | 42.2 | Oakland Community Unit School District 5 / 1,856 |
| 735. | 42.2 | West Carroll Community Unit School District 314 / 8,557 |
| 735. | 42.2 | Farmington Central Community Unit School District 265 / 7,945 |
| 735. | 42.2 | Sterling Community Unit District 5 / 21,850 |
| 735. | 42.2 | Rock Falls Township High School District 301 / 14,656 |
| 735. | 42.2 | Malden Community Consolidated School District 84 / 869 |
| 735. | 42.2 | Shiloh Community Unit School District 1 / 2,965 |
| 735. | 42.2 | Chadwick-Milledgeville Community Unit School District 399 / 2,956 |
| 735. | 42.2 | Brown County Community Unit School District 1 / 6,872 |
| 745. | 42.1 | Ludlow Community Consolidated School District 142 / 1,129 |
| 745. | 42.1 | Paxton-Buckley-Loda Community Unit School District 10 / 8,485 |
| 745. | 42.1 | Astoria Community Unit School District 1 / 2,118 |
| 745. | 42.1 | Rantoul Township High School District 193 / 17,660 |
| 745. | 42.1 | Fisher Community Unit School District 1 / 3,622 |
| 745. | 42.1 | Macomb Community Unit School District 185 / 22,464 |
| 745. | 42.1 | V.I.T. Community Unit School District 2 / 2,461 |
| 745. | 42.1 | Palatine Community Consolidated School District 15 / 119,447 |
| 745. | 42.1 | Gibson City-Melvin-Sibley Community Unit School District 5 / 5,896 |
| 745. | 42.1 | Rantoul City School District 137 / 12,838 |
| 755. | 42.0 | Montmorency Community Consolidated School District 145 / 2,745 |
| 755. | 42.0 | Belvidere Consolidated Unit School District 100 / 45,001 |
| 755. | 42.0 | Harlem Unit School District 122 / 44,262 |
| 755. | 42.0 | Rockford School District 205 / 191,430 |
| 755. | 42.0 | North Boone Community Unit School District 200 / 8,564 |
| 760. | 41.9 | Morrison Community Unit School District 6 / 6,664 |
| 760. | 41.9 | Richmond-Burton Community High School District 157 / 11,648 |
| 760. | 41.9 | Prophetstown-Lyndon-Tampico Community Unit School District 3 / 5,585 |
| 760. | 41.9 | River Bend Community Unit District 2 / 6,722 |
| 760. | 41.9 | Erie Community Unit School District 1 / 3,347 |
| 760. | 41.9 | Riverdale School District 14 / 1,101 |
| 760. | 41.9 | Knoxville Community Unit School District 202 / 6,260 |
| 760. | 41.9 | Nippersink School District 2 / 11,648 |
| 768. | 41.8 | Winnebago Community Unit School District 323 / 8,216 |
| 768. | 41.8 | Bushnell-Prairie City Community Unit School District 170 / 4,230 |
| 768. | 41.8 | McHenry Community Consolidated School District 15 / 42,581 |
| 768. | 41.8 | Abingdon Community Unit School District 217 / 4,360 |
| 768. | 41.8 | Spoon River Valley Community Unit School District 4 / 2,505 |
| 773. | 41.7 | Cissna Park Community Unit School District 6 / 1,807 |
| 773. | 41.7 | Iroquois West Community Unit School District 10 / 4,773 |
| 773. | 41.7 | McHenry Community High School District 156 / 45,604 |
| 773. | 41.7 | South Beloit Community Unit School District 320 / 6,688 |
| 773. | 41.7 | Forrestville Valley Community Unit School District 221 / 5,366 |
| 773. | 41.7 | Rockton School District 140 / 11,945 |
| 773. | 41.7 | Bureau Valley Community Unit School District 340 / 7,195 |
| 773. | 41.7 | Prairie Hill Community Consolidated School District 133 / 5,451 |
| 773. | 41.7 | Williamsfield Community Unit School District 210 / 1,910 |
| 773. | 41.7 | Harrison School District 36 / 3,818 |
| 773. | 41.7 | Warren Community Unit School District 205 / 2,969 |
| 784. | 41.6 | Scales Mound Community Unit School District 211 / 1,624 |
| 784. | 41.6 | Lincolnshire-Prairieview School District 103 / 13,006 |
| 784. | 41.6 | Wethersfield Community Unit School District 230 / 3,974 |
| 784. | 41.6 | Kildeer Countryside Community Consolidated School District 96 / 23,374 |
| 784. | 41.6 | Pearl City Community Unit School District 200 / 2,907 |
| 784. | 41.6 | Adlai E. Stevenson High School District 125 / 61,391 |
| 784. | 41.6 | Mundelein Consolidated High School District 120 / 44,244 |
| 784. | 41.6 | Avon Community Unit School District 176 / 1,728 |
| 792. | 41.5 | Woodstock Community Unit School District 200 / 37,706 |
| 792. | 41.5 | Hawthorn Community Consolidated School District 73 / 30,575 |
| 792. | 41.5 | Community Unit School District 4 / 3,814 |
| 795. | 41.5 | Byron Community Unit School District 226 / 7,955 |
| 795. | 41.5 | United Community School District 304 / 5,873 |
| 795. | 41.5 | Freeport School District 145 / 30,082 |
| 795. | 41.5 | Mundelein Elementary School District 75 / 14,958 |
| 799. | 41.4 | Rondout School District 72 / 1,450 |
| 799. | 41.4 | Libertyville Community High School District 128 / 50,244 |
| 801. | 41.3 | Lena-Winslow Community Unit School District 202 / 4,906 |
| 801. | 41.3 | Oregon Community Unit School District 220 / 10,684 |
| 801. | 41.3 | Polo Community Unit School District 222 / 3,918 |
| 801. | 41.3 | River Ridge Community Unit School District 210 / 3,566 |
| 801. | 41.3 | Monmouth-Roseville Community Unit School District 238 / 11,641 |
| 806. | 41.2 | West Prairie Community Unit School District 103 / 4,809 |
| 806. | 41.2 | Dakota Community Unit School District 201 / 4,909 |
| 806. | 41.2 | Lake Forest School District 67 / 18,592 |
| 806. | 41.2 | Lake Forest Community High School District 115 / 27,017 |
| 810. | 41.1 | Beach Park Community Consolidated School District 3 / 20,446 |
| 810. | 41.1 | Stockton Community Unit School District 206 / 3,877 |
| 810. | 41.1 | Pecatonica Community Unit School District 321 / 5,092 |
| 810. | 41.1 | Eastland Community Unit School District 308 / 4,291 |
| 810. | 41.1 | Galena Unit School District 120 / 5,928 |
| 810. | 41.1 | West Central Community Unit School District 235 / 6,052 |
| 810. | 41.1 | Orangeville Community Unit School District 203 / 2,851 |
| 810. | 41.1 | Durand Community Unit School District 322 / 3,672 |
| 810. | 41.1 | Shirland Community Consolidated School District 134 / 1,496 |
| 810. | 41.1 | Fremont School District 79 / 20,516 |
| 820. | 41.0 | Libertyville School District 70 / 18,534 |
| 820. | 41.0 | Mercer County School District 404 / 8,463 |
| 822. | 40.8 | Lake Bluff Elementary School District 65 / 8,103 |
| 822. | 40.8 | Southeastern Community Unit School District 337 / 3,067 |
| 824. | 40.6 | Oak Grove School District 68 / 7,189 |
| 824. | 40.6 | Waukegan Community Unit School District 60 / 83,647 |
| 824. | 40.6 | North Chicago School District 187 / 29,043 |
| 824. | 40.6 | Gurnee School District 56 / 18,744 |
| 824. | 40.6 | Woodland Community Consolidated School District 50 / 50,954 |
| 824. | 40.6 | Warren Township High School District 121 / 68,666 |
| 830. | 40.5 | Kewanee Community Unit School District 229 / 10,897 |
| 830. | 40.5 | Johnsburg Community Unit School District 12 / 12,447 |
| 832. | 40.5 | Emmons School District 33 / 3,616 |
| 832. | 40.5 | Antioch Community High School District 117 / 44,953 |
| 832. | 40.5 | Lake Villa Community Consolidated School District 41 / 24,136 |
| 832. | 40.5 | Antioch Community Consolidated School District 34 / 23,761 |
| 832. | 40.5 | Millburn Community Consolidated School District 24 / 8,008 |
| 837. | 40.4 | Annawan Community Unit School District 226 / 2,171 |
| 837. | 40.4 | East Dubuque Community Unit School District 119 / 4,393 |
| 839. | 40.3 | ROWVA Community Unit School District 208 / 3,834 |
| 839. | 40.3 | Galesburg Community Unit School District 205 / 34,850 |
| 839. | 40.3 | Rock Island School District 41 / 45,317 |
| 839. | 40.3 | Illini West High School District 307 / 8,403 |
| 839. | 40.3 | Alwood Community Unit School District 225 / 2,643 |
| 839. | 40.3 | Carthage Elementary School District 317 / 4,157 |
| 839. | 40.3 | Cambridge Community Unit School District 227 / 2,861 |
| 839. | 40.3 | Sherrard Community Unit School District 200 / 9,755 |
| 839. | 40.3 | Galva Community Unit School District 224 / 3,413 |
| 839. | 40.3 | Orion Community Unit School District 223 / 6,078 |
| 839. | 40.3 | Moline Unit School District 40 / 48,280 |
| 839. | 40.3 | La Harpe Community School District 347 / 2,240 |
| 851. | 40.2 | Big Hollow School District 38 / 15,095 |
| 851. | 40.2 | Fox Lake Grade School District 114 / 8,628 |
| 851. | 40.2 | Grant Community High School District 124 / 36,397 |
| 851. | 40.2 | Round Lake Community Unit School District 116 / 36,177 |
| 851. | 40.2 | Gavin School District 37 / 7,729 |
| 856. | 40.1 | Nauvoo-Colusa Community Unit School District 325 / 2,441 |
| 856. | 40.1 | Dallas Elementary School District 327 / 2,006 |
| 858. | 40.0 | Grayslake Community High School District 127 / 44,701 |
| 858. | 40.0 | Rockridge Community Unit School District 300 / 7,224 |
| 858. | 40.0 | Grass Lake School District 36 / 2,565 |
| 858. | 40.0 | Grayslake Consolidated Community School District 46 / 29,536 |
| 862. | 39.9 | Riverdale Community Unit School District 100 / 6,402 |
| 862. | 39.9 | East Moline School District 37 / 26,610 |
| 862. | 39.9 | Warsaw Community Unit School District 316 / 2,539 |
| 862. | 39.9 | Hampton School District 29 / 2,357 |
| 862. | 39.9 | Silvis School District 34 / 5,498 |
| 862. | 39.9 | United Township High School District 30 / 39,937 |
| 862. | 39.9 | Colona School District 190 / 3,660 |
| 862. | 39.9 | Carbon Cliff-Barstow School District 36 / 1,812 |
| 862. | 39.9 | Geneseo Community Unit School District 228 / 15,989 |
| 862. | 39.9 | Hamilton Community Consolidated School District 328 / 3,870 |
Please note that we only rank locations with 'Air Quality Index' data. The rank above might not be a complete list. Locations without 'Air Quality Index' data are not listed.
