| Rank | Median Age ▲ | School District / Population |
| 1. | 22.50 | Carbondale Elementary School District 95 / 27,322 |
| 2. | 22.70 | Charleston Community Unit School District 1 / 27,796 |
| 3. | 22.80 | Macomb Community Unit School District 185 / 22,802 |
| 4. | 23.10 | DeKalb Community Unit School District 428 / 52,712 |
| 5. | 23.50 | Carbondale Community High School District 165 / 36,740 |
| 6. | 23.70 | Urbana School District 116 / 48,785 |
| 7. | 23.80 | North Chicago School District 187 / 31,499 |
| 8. | 24.70 | Champaign Community Unit School District 4 / 89,676 |
| 9. | 25.70 | McLean County Unit School District 5 / 89,230 |
| 10. | 26.40 | Ford Heights School District 169 / 3,215 |
| 11. | 26.90 | Chester-East Lincoln Community Csd 61 / 3,353 |
| 12. | 27.10 | Cicero School District 99 / 80,550 |
| 13. | 27.30 | Harvey School District 152 / 18,214 |
| 14. | 27.80 | General George Patton School District 133 / 2,655 |
| 15. | 28.70 | West Harvey-Dixmoor Public School District 147 / 12,046 |
| 16. | 28.80 | Unity Point Community Consolidated School District 140 / 5,395 |
| 17. | 28.90 | Chicago Heights School District 170 / 25,323 |
| 17. | 28.90 | Cahokia Community Unit School District 187 / 20,194 |
| 19. | 29.00 | Mascoutah Community Unit School District 19 / 15,542 |
| 20. | 29.60 | Round Lake Community Unit School District 116 / 39,118 |
| 20. | 29.60 | J. Sterling Morton High School District 201 / 147,548 |
| 20. | 29.60 | Rhodes School District 84-5 / 4,735 |
| 23. | 29.70 | Dolton School District 148 / 23,356 |
| 23. | 29.70 | Taft School District 90 / 4,902 |
| 25. | 29.90 | Lincoln Elementary School District 156 / 7,763 |
| 26. | 30.10 | Carbon Cliff-Barstow School District 36 / 1,925 |
| 26. | 30.10 | Community Consolidated School District 168 / 10,033 |
| 28. | 30.20 | Aurora East Unit School District 131 / 71,917 |
| 29. | 30.50 | Zion Elementary School District 6 / 18,093 |
| 30. | 30.80 | Berwyn North School District 98 / 21,005 |
| 31. | 31.10 | Sandridge School District 172 / 4,190 |
| 32. | 31.20 | Waukegan Community Unit School District 60 / 86,907 |
| 33. | 31.30 | Wood River-Hartford Elementary School District 15 / 7,179 |
| 34. | 31.50 | Joliet Public School District 86 / 98,824 |
| 34. | 31.50 | Depue Community Unit School District 103 / 2,173 |
| 34. | 31.50 | Oswego Community Unit School District 308 / 55,989 |
| 37. | 31.60 | Creston Community Consolidated School District 161 / 1,253 |
| 38. | 31.70 | Plainfield School District 202 / 100,005 |
| 38. | 31.70 | Central Stickney School District 110 / 2,463 |
| 38. | 31.70 | Valley View Community Unit School District 365U / 92,443 |
| 41. | 31.80 | Tamaroa School District 5 / 1,317 |
| 41. | 31.80 | Bloom Township High School District 206 / 65,205 |
| 43. | 31.90 | Bellwood School District 88 / 22,689 |
| 44. | 32.10 | St. George Community Consolidated School District 258 / 2,880 |
| 45. | 32.30 | Chicago Ridge School District 127-5 / 12,301 |
| 46. | 32.40 | Arthur Community Unit School District 305 / 5,131 |
| 46. | 32.40 | West Chicago School District 33 / 30,628 |
| 48. | 32.50 | Central School District 104 / 3,903 |
| 48. | 32.50 | Kansas Community Unit School District 3 / 1,788 |
| 48. | 32.50 | Thornton Township High School District 205 / 118,770 |
| 51. | 32.60 | Minooka Community Consolidated School District 201 / 16,323 |
| 51. | 32.60 | Pleasant Valley School District 62 / 4,246 |
| 51. | 32.60 | Summit School District 104 / 11,456 |
| 54. | 32.70 | Berkeley School District 87 / 20,746 |
| 55. | 32.80 | Joliet Township High School District 204 / 141,507 |
| 55. | 32.80 | Chicago Public School District 299 / 2,824,076 |
| 55. | 32.80 | Carterville Community Unit School District 5 / 10,883 |
| 58. | 32.90 | East St. Louis School District 189 / 44,780 |
| 59. | 33.00 | Bartonville School District 66 / 2,092 |
| 59. | 33.00 | Hazel Crest School District 152-5 / 8,289 |
| 59. | 33.00 | Plano Community Unit School District 88 / 10,371 |
| 59. | 33.00 | Indian Prairie Community Unit School District 204 / 117,177 |
| 63. | 33.10 | Marquardt School District 15 / 24,872 |
| 64. | 33.20 | Maywood-Melrose Park-Broadview School District 89 / 42,778 |
| 64. | 33.20 | School District U-46 / 220,636 |
| 64. | 33.20 | Manhattan School District 114 / 9,731 |
| 67. | 33.30 | Vienna School District 55 / 5,205 |
| 67. | 33.30 | Posen-Robbins Elementary School District 143-5 / 11,587 |
| 69. | 33.40 | Bourbonnais School District 53 / 23,115 |
| 70. | 33.50 | Calumet Public School District 132 / 11,816 |
| 70. | 33.50 | Bradley-Bourbonnais Consolidated High School District 307 / 37,677 |
| 72. | 33.60 | Arcola Consolidated Unit School District 306 / 4,111 |
| 72. | 33.60 | Harvard Community Unit School District 50 / 14,503 |
| 72. | 33.60 | Aurora West Unit School District 129 / 78,322 |
| 72. | 33.60 | Keeneyville School District 20 / 14,672 |
| 72. | 33.60 | Big Hollow School District 38 / 10,415 |
| 72. | 33.60 | Bloomington School District 87 / 43,115 |
| 78. | 33.70 | St. Rose School District 14-15 / 1,358 |
| 79. | 33.80 | Bradley School District 61 / 11,682 |
| 79. | 33.80 | Dolton School District 149 / 28,452 |
| 79. | 33.80 | Prairie du Rocher Community Consolidated School District 134 / 939 |
| 79. | 33.80 | Chester Non-High School District 122 / 939 |
| 83. | 33.90 | Schiller Park School District 81 / 12,479 |
| 83. | 33.90 | Edwardsville Community Unit School District 7 / 49,060 |
| 85. | 34.00 | Community Consolidated School District 204 / 4,080 |
| 86. | 34.10 | Arbor Park School District 145 / 13,038 |
| 86. | 34.10 | Grayslake Consolidated Community School District 46 / 30,783 |
| 86. | 34.10 | Minooka Community High School District 111 / 35,045 |
| 86. | 34.10 | Diamond Lake School District 76 / 8,500 |
| 86. | 34.10 | Berwyn South School District 100 / 29,048 |
| 91. | 34.20 | Kankakee School District 111 / 32,737 |
| 91. | 34.20 | Signal Hill School District 181 / 3,007 |
| 93. | 34.30 | Lincoln Elementary School District 27 / 12,155 |
| 93. | 34.30 | Addison School District 4 / 37,455 |
| 93. | 34.30 | Valmeyer Community Unit School District 3 / 2,642 |
| 93. | 34.30 | Peoria School District 150 / 106,668 |
| 97. | 34.40 | Prairie-Hills Elementary School District 144 / 21,545 |
| 97. | 34.40 | Community Unit School District 300 / 113,766 |
| 99. | 34.50 | Bannockburn School District 106 / 2,028 |
| 99. | 34.50 | Summit Hill School District 161 / 21,129 |
| 99. | 34.50 | Webber Township High School District 204 / 3,267 |
| 99. | 34.50 | New Simpson Hill Consolidated District 32 / 3,367 |
| 99. | 34.50 | Millburn Community Consolidated School District 24 / 8,866 |
| 104. | 34.60 | Opdyke-Belle Rive Community Consolidated School District 5 / 1,860 |
| 104. | 34.60 | Bluford Community Consolidated School District 114 / 3,118 |
| 106. | 34.70 | Zion-Benton Township High School District 126 / 45,405 |
| 106. | 34.70 | Indian Springs School District 109 / 23,303 |
| 106. | 34.70 | Queen Bee School District 16 / 17,298 |
| 106. | 34.70 | Community High School District 94 / 41,726 |
| 106. | 34.70 | Kaneland Community Unit School District 302 / 23,164 |
| 106. | 34.70 | Evanston Community Consolidated School District 65 / 84,695 |
| 106. | 34.70 | Mahomet-Seymour Community Unit School District 3 / 12,626 |
| 106. | 34.70 | Evanston Township High School District 202 / 84,695 |
| 114. | 34.80 | Gurnee School District 56 / 16,011 |
| 114. | 34.80 | Leyden Community High School District 212 / 61,917 |
| 114. | 34.80 | Genoa-Kingston Community Unit School District 424 / 8,651 |
| 117. | 34.90 | Midlothian School District 143 / 13,979 |
| 117. | 34.90 | Vienna High School District 133 / 10,240 |
| 117. | 34.90 | Liberty Community Unit School District 2 / 3,461 |
| 117. | 34.90 | Community Consolidated School District 180 / 6,618 |
| 121. | 35.00 | Grayslake Community High School District 127 / 44,353 |
| 121. | 35.00 | Cary Community Consolidated School District 26 / 23,250 |
| 121. | 35.00 | Thornton Fractional Township High School District 215 / 58,072 |
| 121. | 35.00 | Madison Community Unit School District 12 / 4,772 |
| 121. | 35.00 | Lincoln Community High School District 404 / 21,970 |
| 126. | 35.10 | Sunnybrook School District 171 / 10,267 |
| 126. | 35.10 | Argo Community High School District 217 / 38,541 |
| 126. | 35.10 | Community Consolidated School District 93 / 34,011 |
| 129. | 35.20 | Rochelle Community Consolidated District 231 / 13,617 |
| 129. | 35.20 | Pleasant Hill School District 69 / 2,146 |
| 129. | 35.20 | Mannheim School District 83 / 21,032 |
| 129. | 35.20 | Yorkville Community Unit School District 115 / 22,716 |
| 129. | 35.20 | Troy Community Consolidated School District 30C / 35,403 |
| 129. | 35.20 | Braceville School District 75 / 1,462 |
| 129. | 35.20 | Dunlap Community Unit School District 323 / 16,552 |
| 129. | 35.20 | Donovan Community Unit School District 3 / 2,476 |
| 129. | 35.20 | Teutopolis Community Unit School District 50 / 5,035 |
| 129. | 35.20 | Virginia Community Unit School District 64 / 2,417 |
| 129. | 35.20 | Manteno Community Unit School District 5 / 11,567 |
| 140. | 35.30 | Calumet City School District 155 / 10,849 |
| 140. | 35.30 | Reavis Township High School District 220 / 30,936 |
| 140. | 35.30 | Saratoga Community Consolidated School District 60C / 5,177 |
| 140. | 35.30 | Laraway Community Consolidated School District 70C / 3,367 |
| 140. | 35.30 | Homer Community Consolidated School District 33C / 26,946 |
| 145. | 35.40 | Mundelein Consolidated High School District 120 / 39,864 |
| 145. | 35.40 | Rockdale School District 84 / 2,338 |
| 145. | 35.40 | Warren Township High School District 121 / 64,294 |
| 145. | 35.40 | Bremen Community High School District 228 / 94,111 |
| 145. | 35.40 | Proviso Township High School District 209 / 123,355 |
| 150. | 35.50 | Creve Coeur School District 76 / 5,617 |
| 150. | 35.50 | Belvidere Consolidated Unit School District 100 / 42,743 |
| 150. | 35.50 | Channahon School District 17 / 13,609 |
| 150. | 35.50 | Cook County School District 130 / 29,069 |
| 154. | 35.60 | Ohio Community High School District 505 / 869 |
| 154. | 35.60 | Lyons School District 103 / 21,047 |
| 154. | 35.60 | Rochelle Township High School District 212 / 17,645 |
| 154. | 35.60 | New Lenox School District 122 / 35,731 |
| 158. | 35.70 | Grant Community High School District 124 / 31,246 |
| 158. | 35.70 | Lake Villa Community Consolidated School District 41 / 22,282 |
| 158. | 35.70 | Pontiac-William Holliday School District 105 / 7,533 |
| 158. | 35.70 | Grant Park Community Unit School District 6 / 3,539 |
| 158. | 35.70 | Roselle School District 12 / 7,990 |
| 158. | 35.70 | Brown County Community Unit School District 1 / 6,592 |
| 158. | 35.70 | Burbank School District 111 / 28,473 |
| 158. | 35.70 | Woodland Community Consolidated School District 50 / 49,686 |
| 166. | 35.90 | Belle Valley School District 119 / 8,087 |
| 166. | 35.90 | Winnebago Community Unit School District 323 / 9,072 |
| 166. | 35.90 | St. Joseph Community Consolidated School District 169 / 5,886 |
| 166. | 35.90 | Lincoln Way Community High School District 210 / 99,403 |
| 170. | 36.00 | Norwood Elementary School District 63 / 4,543 |
| 170. | 36.00 | Palatine Community Consolidated School District 15 / 117,755 |
| 170. | 36.00 | McHenry Community Consolidated School District 15 / 42,838 |
| 170. | 36.00 | Albers School District 63 / 1,276 |
| 170. | 36.00 | Kinnikinnick Community Consolidated School District 131 / 12,043 |
| 170. | 36.00 | Brownstown Community Unit School District 201 / 2,571 |
| 170. | 36.00 | Hawthorn Community Consolidated School District 73 / 28,155 |
| 177. | 36.10 | Pecatonica Community Unit School District 321 / 4,940 |
| 177. | 36.10 | Seneca Community Consolidated School District 170 / 3,370 |
| 177. | 36.10 | Schaumburg Community Consolidated School District 54 / 132,880 |
| 177. | 36.10 | Sycamore Community Unit School District 427 / 20,999 |
| 177. | 36.10 | New Hope Community Consolidated School District 6 / 1,615 |
| 177. | 36.10 | Community Unit School District 200 / 79,138 |
| 177. | 36.10 | Township High School District 211 / 234,105 |
| 184. | 36.20 | Whiteside School District 115 / 11,134 |
| 184. | 36.20 | Rantoul City School District 137 / 12,368 |
| 184. | 36.20 | Rossville-Alvin Community Unit School District 7 / 2,465 |
| 184. | 36.20 | East Alton-Wood River Community High School District 14 / 15,142 |
| 184. | 36.20 | District 50 Schools / 7,192 |
| 189. | 36.30 | Beach Park Community Consolidated School District 3 / 20,454 |
| 190. | 36.40 | Atwood Heights School District 125 / 7,231 |
| 190. | 36.40 | Mundelein Elementary School District 75 / 16,973 |
| 190. | 36.40 | Waltonville Community Unit School District 1 / 2,140 |
| 190. | 36.40 | Wood Dale School District 7 / 10,582 |
| 190. | 36.40 | Franklin Park School District 84 / 10,543 |
| 190. | 36.40 | Meridian Community Unit School District 223 / 8,879 |
| 190. | 36.40 | McHenry Community High School District 156 / 45,771 |
| 197. | 36.50 | O'Fallon Community Consolidated School District 90 / 26,098 |
| 197. | 36.50 | Ohio Community Consolidated School District 17 / 862 |
| 197. | 36.50 | Woodridge School District 68 / 32,922 |
| 197. | 36.50 | A-C Central Community Unit School District 262 / 2,942 |
| 197. | 36.50 | Tolono Community Unit School District 7 / 8,976 |
| 197. | 36.50 | Wheeling Community Consolidated School District 21 / 64,762 |
| 197. | 36.50 | Lee Center Community Unit School District 271 / 1,778 |
| 197. | 36.50 | Fenton Community High School District 100 / 31,126 |
| 197. | 36.50 | Illini Bluffs Community Unit School District 327 / 5,468 |
| 206. | 36.60 | Bensenville School District 2 / 20,544 |
| 206. | 36.60 | Tremont Community Unit School District 702 / 5,196 |
| 206. | 36.60 | Will County School District 92 / 15,428 |
| 209. | 36.70 | North Wamac School District 186 / 851 |
| 209. | 36.70 | West Lincoln-Broadwell Elementary School District 92 / 5,094 |
| 209. | 36.70 | Chaney-Monge School District 88 / 5,813 |
| 209. | 36.70 | Princeville Community Unit School District 326 / 4,420 |
| 209. | 36.70 | Glenbard Township High School District 87 / 161,734 |
| 209. | 36.70 | Lansing School District 158 / 21,795 |
| 209. | 36.70 | Central Community Unit School District 301 / 16,974 |
| 209. | 36.70 | Community High School District 155 / 96,663 |
| 209. | 36.70 | Park Forest School District 163 / 16,095 |
| 209. | 36.70 | Gardner-South Wilmington Township High School District / 3,994 |
| 209. | 36.70 | North Boone Community Unit School District 200 / 9,455 |
| 209. | 36.70 | Maroa-Forsyth Community Unit School District 2 / 6,137 |
| 221. | 36.80 | O'Fallon Township High School District 203 / 36,794 |
| 221. | 36.80 | South Pekin School District 137 / 1,835 |
| 221. | 36.80 | Community Consolidated School District 59 / 63,662 |
| 221. | 36.80 | Antioch Community Consolidated School District 34 / 21,954 |
| 221. | 36.80 | Belleville School District 118 / 35,678 |
| 221. | 36.80 | Wauconda Community Unit School District 118 / 25,107 |
| 227. | 36.90 | Lockport Township High School District 205 / 75,447 |
| 227. | 36.90 | Marengo-Union Elementary Consolidated District 165 / 11,189 |
| 227. | 36.90 | Dupo Community Unit School District 196 / 7,252 |
| 227. | 36.90 | DuPage High School District 88 / 82,390 |
| 227. | 36.90 | Crystal Lake Community Consolidated School District 47 / 60,711 |
| 227. | 36.90 | Eureka Community Unit District 140 / 9,590 |
| 227. | 36.90 | Mokena School District 159 / 17,361 |
| 227. | 36.90 | North Pekin-Marquette Heights School District 102 / 5,117 |
| 227. | 36.90 | Rockford School District 205 / 197,697 |
| 236. | 37.00 | Hononegah Community High School District 207 / 27,443 |
| 236. | 37.00 | Gavin School District 37 / 6,456 |
| 236. | 37.00 | River Forest School District 90 / 11,123 |
| 236. | 37.00 | Kell Consolidated School District 2 / 1,083 |
| 240. | 37.10 | De Soto Consolidated School District 86 / 1,914 |
| 240. | 37.10 | Roxana Community Unit School District 1 / 12,019 |
| 240. | 37.10 | Community High School District 218 / 117,651 |
| 240. | 37.10 | Central School District 51 / 6,674 |
| 244. | 37.20 | Venice Community Unit School District 3 / 1,134 |
| 244. | 37.20 | Saunemin Community Consolidated School District 438 / 929 |
| 244. | 37.20 | Prairie Hill Community Consolidated School District 133 / 3,506 |
| 244. | 37.20 | Rockton School District 140 / 10,001 |
| 248. | 37.30 | Cairo Community Unit School District 1 / 3,244 |
| 248. | 37.30 | Woodstock Community Unit School District 200 / 36,015 |
| 248. | 37.30 | Maercker School District 60 / 17,459 |
| 248. | 37.30 | Bond County Community Unit School District 2 / 14,175 |
| 248. | 37.30 | Potomac Community Unit School District 10 / 1,249 |
| 248. | 37.30 | St. Elmo Community Unit School District 202 / 3,037 |
| 248. | 37.30 | South Fork School District 14 / 2,447 |
| 248. | 37.30 | South Wilmington Consolidated School District 74 / 860 |
| 248. | 37.30 | Carlyle Community Unit School District 1 / 10,137 |
| 257. | 37.40 | Flora Community Unit School District 35 / 8,389 |
| 257. | 37.40 | St. Charles Community Unit School District 303 / 64,237 |
| 257. | 37.40 | Alsip-Hazelgreen-Oaklawn School District 126 / 15,865 |
| 257. | 37.40 | Ewing Northern Community Consolidated District 115 / 1,878 |
| 257. | 37.40 | Waltham Community Consolidated School District 185 / 2,393 |
| 262. | 37.50 | Name N/A / 4,722,093 |
| 262. | 37.50 | Rantoul Township High School District 193 / 17,182 |
| 262. | 37.50 | Geneva Community Unit School District 304 / 27,729 |
| 262. | 37.50 | Rankin Community School District 98 / 3,816 |
| 262. | 37.50 | South Holland School District 151 / 12,905 |
| 262. | 37.50 | Villa Park School District 45 / 35,529 |
| 268. | 37.60 | Tri-Valley Community Unit School District 3 / 4,331 |
| 268. | 37.60 | Ball-Chatham Community Unit School District 5 / 24,641 |
| 268. | 37.60 | Eswood Community Consolidated District 269 / 945 |
| 268. | 37.60 | LaGrange School District 105 / 11,636 |
| 268. | 37.60 | Antioch Community High School District 117 / 43,663 |
| 268. | 37.60 | Lawrence County Community Unit District 20 / 8,750 |
| 268. | 37.60 | Auburn Community Unit School District 10 / 6,606 |
| 275. | 37.70 | Monmouth-Roseville Community Unit School District 238 / 10,619 |
| 275. | 37.70 | Heyworth Community Unit School District 4 / 4,649 |
| 275. | 37.70 | Columbia Community Unit School District 4 / 11,646 |
| 275. | 37.70 | Triad Community Unit School District 2 / 19,194 |
| 275. | 37.70 | Gibson City-Melvin-Sibley Community Unit School District 5 / 5,819 |
| 275. | 37.70 | Batavia Unit School District 101 / 31,942 |
| 275. | 37.70 | Ina Community Consolidated School District 8 / 3,239 |
| 275. | 37.70 | Matteson Elementary School District 162 / 23,227 |
| 283. | 37.80 | Okaw Valley Community Unit School District 302 / 3,587 |
| 283. | 37.80 | Country Club Hills School District 160 / 12,568 |
| 283. | 37.80 | Burnham School District 154-5 / 1,265 |
| 283. | 37.80 | Streator Elementary School District 44 / 16,813 |
| 283. | 37.80 | Limestone Community High School District 310 / 21,447 |
| 288. | 37.90 | Le Roy Community Unit School District 2 / 4,573 |
| 288. | 37.90 | Illinois Valley Central Unit School District 321 / 11,870 |
| 288. | 37.90 | Oak Park and River Forest District 200 / 64,226 |
| 291. | 38.00 | Rock Island School District 41 / 44,527 |
| 291. | 38.00 | Mendota Community Consolidated School District 289 / 10,404 |
| 291. | 38.00 | Murphysboro Community Unit School District 186 / 14,884 |
| 291. | 38.00 | Stewardson-Strasburg Community Unit District 5A / 2,968 |
| 291. | 38.00 | Mendota Township High School District 280 / 10,414 |
| 291. | 38.00 | Pearl City Community Unit School District 200 / 2,884 |
| 291. | 38.00 | North Greene Unit School District 3 / 6,369 |
| 291. | 38.00 | Steeleville Community Unit School District 138 / 3,263 |
| 291. | 38.00 | Washington Community High School District 308 / 21,159 |
| 291. | 38.00 | Huntley Consolidated School District 158 / 36,341 |
| 301. | 38.10 | El Paso-Gridley Community Unit School District 11 / 6,903 |
| 301. | 38.10 | Mazon-Verona-Kinsman Elementary School District 2C / 3,074 |
| 301. | 38.10 | Winthrop Harbor School District 1 / 6,905 |
| 301. | 38.10 | Allendale Community Consolidated School District 17 / 1,209 |
| 301. | 38.10 | Steger School District 194 / 14,119 |
| 301. | 38.10 | Wesclin Community Unit School District 3 / 7,196 |
| 307. | 38.20 | Oakwood Community Unit School District 76 / 6,133 |
| 307. | 38.20 | Kewanee Community Unit School District 229 / 9,997 |
| 307. | 38.20 | Somonauk Community Unit School District 432 / 4,727 |
| 307. | 38.20 | Union School District 81 / 1,632 |
| 307. | 38.20 | Streator Township High School District 40 / 18,419 |
| 307. | 38.20 | South Beloit Community Unit School District 320 / 5,529 |
| 307. | 38.20 | Georgetown-Ridge Farm Consolidated Unit School District 4 / 6,451 |
| 307. | 38.20 | Joppa-Maple Grove Unit District 38 / 1,653 |
| 307. | 38.20 | Oak Park Elementary School District 97 / 53,103 |
| 307. | 38.20 | Collinsville Community Unit School District 10 / 45,867 |
| 307. | 38.20 | Forest Ridge School District 142 / 16,287 |
| 318. | 38.30 | United Township High School District 30 / 39,811 |
| 318. | 38.30 | Elmhurst School District 205 / 48,567 |
| 318. | 38.30 | Glen Ellyn School District 41 / 29,260 |
| 318. | 38.30 | Evergreen Park Community High School District 231 / 19,356 |
| 318. | 38.30 | Edinburg Community Unit School District 4 / 2,164 |
| 318. | 38.30 | Colona School District 190 / 3,761 |
| 318. | 38.30 | Evergreen Park Elementary School District 124 / 19,356 |
| 318. | 38.30 | Seneca Township High School District 160 / 7,399 |
| 318. | 38.30 | Frankfort Community Consolidated School District 157C / 16,507 |
| 318. | 38.30 | Naperville Community Unit District 203 / 102,048 |
| 318. | 38.30 | Chester Community Unit School District 139 / 10,256 |
| 318. | 38.30 | Effingham Community Unit School District 40 / 20,775 |
| 318. | 38.30 | Hutsonville Community Unit School District 1 / 2,307 |
| 318. | 38.30 | Springfield School District 186 / 116,026 |
| 318. | 38.30 | Marengo Community High School District 154 / 14,331 |
| 333. | 38.40 | Pontiac Community Consolidated School District 429 / 13,213 |
| 333. | 38.40 | Ridgeland School District 122 / 20,640 |
| 333. | 38.40 | St. Joseph-Ogden Community High School District 305 / 7,990 |
| 333. | 38.40 | Hiawatha Community Unit School District 426 / 3,568 |
| 333. | 38.40 | Deer Creek-Mackinaw Community Unit School District 701 / 5,346 |
| 333. | 38.40 | Morris Community High School District 101 / 18,602 |
| 333. | 38.40 | Trico Community Unit School District 176 / 6,587 |
| 340. | 38.50 | Pinckneyville Community High School District 101 / 11,114 |
| 340. | 38.50 | Thornton School District 154 / 2,590 |
| 340. | 38.50 | Sandoval Community Unit School District 501 / 2,891 |
| 340. | 38.50 | Pontiac Township High School District 90 / 15,907 |
| 340. | 38.50 | Hoopeston Area Community Unit School District 11 / 7,556 |
| 345. | 38.60 | Danville Community Consolidated School District 118 / 40,017 |
| 345. | 38.60 | Belleville Township High School District 201 / 100,903 |
| 345. | 38.60 | Harlem Unit School District 122 / 46,508 |
| 345. | 38.60 | East Moline School District 37 / 26,810 |
| 345. | 38.60 | Prairie Grove Community School District 46 / 7,861 |
| 345. | 38.60 | Bureau Valley Community Unit School District 340 / 6,985 |
| 345. | 38.60 | Morris School District 54 / 12,836 |
| 352. | 38.70 | Rich Township High School District 227 / 64,486 |
| 352. | 38.70 | Lockport School District 91 / 8,520 |
| 352. | 38.70 | Forest Park School District 91 / 15,112 |
| 352. | 38.70 | Southwestern Community Unit School District 9 / 9,899 |
| 352. | 38.70 | Delavan Community Unit School District 703 / 2,845 |
| 352. | 38.70 | Coal City Community Unit School District 1 / 10,885 |
| 358. | 38.80 | Cowden-Herrick Community Unit School District 3A / 2,282 |
| 358. | 38.80 | Kenilworth School District 38 / 2,887 |
| 358. | 38.80 | Rochester Community Unit School District 3A / 9,666 |
| 358. | 38.80 | Polo Community Unit School District 222 / 4,315 |
| 358. | 38.80 | Warsaw Community Unit School District 316 / 3,078 |
| 358. | 38.80 | Thomasboro Community Consolidated School District 130 / 2,214 |
| 358. | 38.80 | Jacksonville School District 117 / 28,917 |
| 358. | 38.80 | Griggsville-Perry Community Unit School District 4 / 2,306 |
| 358. | 38.80 | Nokomis Community Unit School District 22 / 4,705 |
| 367. | 38.90 | Lake Park Community High School District 108 / 51,742 |
| 367. | 38.90 | Central Community Unit School District 4 / 6,581 |
| 367. | 38.90 | Grand Prairie Community Consolidated School District 6 / 941 |
| 367. | 38.90 | Panhandle Community Unit School District 2 / 3,644 |
| 367. | 38.90 | LaSalle Elementary School District 122 / 9,180 |
| 367. | 38.90 | Shiloh Village School District 85 / 5,353 |
| 367. | 38.90 | Steward Elementary School District 220 / 801 |
| 367. | 38.90 | Scott-Morgan Consolidated Unit School District 2 / 1,501 |
| 367. | 38.90 | Warrensburg-Latham Community Unit District 11 / 7,270 |
| 367. | 38.90 | Galesburg Community Unit School District 205 / 34,412 |
| 367. | 38.90 | Reed Custer Community Unit School District 255U / 10,368 |
| 367. | 38.90 | Jasper Community Consolidated School District 17 / 1,556 |
| 379. | 39.00 | Township High School District 214 / 245,678 |
| 379. | 39.00 | La Moille Community Unit School District 303 / 2,123 |
| 379. | 39.00 | Granite City Community Unit School District 9 / 45,755 |
| 379. | 39.00 | New Athens Community Unit School District 60 / 4,581 |
| 383. | 39.10 | Beardstown Community Unit School District 15 / 7,573 |
| 383. | 39.10 | Beecher Community Unit School District 200U / 5,431 |
| 383. | 39.10 | Annawan Community Unit School District 226 / 2,249 |
| 383. | 39.10 | Salem School District 111 / 8,738 |
| 383. | 39.10 | Mount Vernon School District 80 / 14,390 |
| 383. | 39.10 | Hoover-Schrum Memorial School District 157 / 7,416 |
| 383. | 39.10 | Lindop School District 92 / 4,139 |
| 383. | 39.10 | Girard Community Unit School District 3 / 4,365 |
| 383. | 39.10 | Mount Zion Community Unit School District 3 / 11,674 |
| 383. | 39.10 | Tuscola Community Unit School District 301 / 5,937 |
| 393. | 39.20 | LaGrange School District 102 / 24,056 |
| 393. | 39.20 | Oak Lawn Community High School District 229 / 37,054 |
| 393. | 39.20 | Crete-Monee Community Unit School District 201-U / 36,316 |
| 393. | 39.20 | Germantown Hills School District 69 / 6,234 |
| 393. | 39.20 | Kirby School District 140 / 40,025 |
| 393. | 39.20 | Carlinville Community Unit School District 1 / 9,264 |
| 393. | 39.20 | Glen Ellyn Community Consolidated School District 89 / 21,504 |
| 400. | 39.30 | Dieterich Community Unit School District 30 / 2,262 |
| 400. | 39.30 | Jersey Community Unit School District 100 / 19,823 |
| 400. | 39.30 | Moline Unit School District 40 / 48,111 |
| 400. | 39.30 | Byron Community Unit School District 226 / 7,851 |
| 400. | 39.30 | Prophetstown-Lyndon-Tampico Community Unit School District 3 / 5,966 |
| 405. | 39.40 | Triopia Community Unit School District 27 / 2,230 |
| 405. | 39.40 | Bartelso School District 57 / 1,145 |
| 405. | 39.40 | Gardner Community Consolidated School District 72C / 1,681 |
| 405. | 39.40 | Community High School District 99 / 110,166 |
| 405. | 39.40 | Meridian Community Unit School District 101 / 3,608 |
| 405. | 39.40 | Pekin Community High School District 303 / 44,837 |
| 405. | 39.40 | Lombard School District 44 / 34,789 |
| 405. | 39.40 | Bradford Community Unit School District 1 / 1,782 |
| 413. | 39.50 | Leland Community Unit School District 1 / 1,708 |
| 413. | 39.50 | Hinsdale Community Consolidated School District 181 / 26,716 |
| 413. | 39.50 | Marshall Community Unit School District 2C / 8,439 |
| 413. | 39.50 | Decatur School District 61 / 70,831 |
| 413. | 39.50 | Harrison School District 36 / 3,597 |
| 413. | 39.50 | Skokie School District 69 / 17,977 |
| 413. | 39.50 | Orangeville Community Unit School District 203 / 2,751 |
| 413. | 39.50 | Ludlow Community Consolidated School District 142 / 1,201 |
| 413. | 39.50 | Herrin Community Unit School District 4 / 15,651 |
| 422. | 39.60 | East Peoria Community High School District 309 / 25,502 |
| 422. | 39.60 | Greenfield Community Unit School District 10 / 2,804 |
| 422. | 39.60 | Union Ridge School District 86 / 5,490 |
| 422. | 39.60 | River Grove School District 85-5 / 7,819 |
| 422. | 39.60 | Lake Zurich Community Unit School District 95 / 33,213 |
| 422. | 39.60 | Prairie Central Community Unit School District 8 / 11,148 |
| 422. | 39.60 | Bethalto Consolidated Unit School District 8 / 15,745 |
| 422. | 39.60 | Winnetka School District 36 / 12,080 |
| 430. | 39.70 | Lostant Community Unit School District 425 / 781 |
| 430. | 39.70 | Rock Falls Elementary School District 13 / 8,033 |
| 430. | 39.70 | Westmont Community Unit School District 201 / 13,713 |
| 430. | 39.70 | Red Bud Community Unit School District 132 / 7,844 |
| 430. | 39.70 | Sangamon Valley Community Unit School District 9 / 3,854 |
| 430. | 39.70 | Libertyville Community High School District 128 / 49,804 |
| 430. | 39.70 | Benjamin School District 25 / 6,460 |
| 430. | 39.70 | Buncombe Consolidated School District 43 / 570 |
| 438. | 39.80 | Shawnee Community Unit School District 84 / 3,132 |
| 438. | 39.80 | Alton Community Unit School District 11 / 49,395 |
| 438. | 39.80 | Midwest Central Community Unit School District 191 / 6,867 |
| 438. | 39.80 | Cumberland Community Unit School District 77 / 6,233 |
| 438. | 39.80 | Staunton Community Unit School District 6 / 7,934 |
| 438. | 39.80 | Jonesboro Community Consolidated School District 43 / 3,160 |
| 438. | 39.80 | Skokie School District 73-5 / 10,593 |
| 445. | 39.90 | Fieldcrest Community Unit School District 6 / 7,292 |
| 445. | 39.90 | Quincy School District 172 / 50,733 |
| 445. | 39.90 | Altamont Community Unit School District 10 / 4,756 |
| 445. | 39.90 | Elwood Community Consolidated School District 203 / 4,124 |
| 445. | 39.90 | Sandwich Community Unit School District 430 / 14,659 |
| 445. | 39.90 | Peotone Community Unit School District 207U / 10,965 |
| 445. | 39.90 | New Holland-Middletown Elementary School District 88 / 1,368 |
| 445. | 39.90 | Eldorado Community Unit School District 4 / 7,466 |
| 453. | 40.00 | Libertyville School District 70 / 19,984 |
| 453. | 40.00 | Geff Community Consolidated School District 14 / 942 |
| 453. | 40.00 | Odell Community Consolidated School District 435 / 1,529 |
| 453. | 40.00 | Heritage Community Unit School District 8 / 2,902 |
| 453. | 40.00 | Medinah School District 11 / 6,787 |
| 453. | 40.00 | Selmaville Community Consolidated School District 10 / 1,775 |
| 453. | 40.00 | Zeigler-Royalton Community Unit School District 188 / 3,939 |
| 453. | 40.00 | Brookwood School District 167 / 9,977 |
| 461. | 40.10 | Lovington Community Unit School District 303 / 1,744 |
| 461. | 40.10 | Aviston School District 21 / 2,165 |
| 461. | 40.10 | Meredosia-Chambersburg Community Unit School District 11 / 1,773 |
| 461. | 40.10 | Worth School District 127 / 10,356 |
| 461. | 40.10 | Des Plaines Community Consolidated School District 62 / 49,282 |
| 461. | 40.10 | East Peoria School District 86 / 18,221 |
| 461. | 40.10 | Johnston City Community Unit School District 1 / 7,967 |
| 461. | 40.10 | Mattoon Community Unit School District 2 / 22,115 |
| 469. | 40.20 | Highland Community Unit School District 5 / 17,129 |
| 469. | 40.20 | North Palos School District 117 / 26,239 |
| 469. | 40.20 | Oak Grove School District 68 / 7,275 |
| 469. | 40.20 | Central Community High School District 71 / 15,528 |
| 469. | 40.20 | Fisher Community Unit School District 1 / 3,063 |
| 469. | 40.20 | Red Hill Community Unit School District 10 / 7,880 |
| 469. | 40.20 | Meridian Community Unit School District 15 / 6,199 |
| 469. | 40.20 | Johnsburg Community Unit School District 12 / 13,505 |
| 469. | 40.20 | Pekin Public School District108 / 32,911 |
| 469. | 40.20 | Nashville Consolidated Community School District 49 / 5,145 |
| 469. | 40.20 | Wilmington Community Unit School District 209U / 10,990 |
| 480. | 40.30 | Marseilles Elementary School District 150 / 4,451 |
| 480. | 40.30 | Tonica Community Consolidated School District 79 / 1,433 |
| 480. | 40.30 | Pana Community Unit School District 8 / 9,356 |
| 480. | 40.30 | Elmwood Park Community Unit School District 401 / 23,988 |
| 480. | 40.30 | Greenview Community Unit School District 200 / 1,563 |
| 480. | 40.30 | Sterling Community Unit District 5 / 21,731 |
| 480. | 40.30 | Lisle Community Unit School District 202 / 14,078 |
| 480. | 40.30 | Indian Creek Community Unit District 425 / 4,778 |
| 488. | 40.40 | Oakdale Community Consolidated School District 1 / 813 |
| 488. | 40.40 | LaSalle-Peru Township High School District 120 / 28,535 |
| 488. | 40.40 | Mount Vernon Township High School District 201 / 30,897 |
| 488. | 40.40 | Lebanon Community Unit School District 9 / 5,713 |
| 488. | 40.40 | Silvis School District 34 / 5,245 |
| 488. | 40.40 | Freeburg Community Consolidated School District 70 / 7,249 |
| 488. | 40.40 | Earlville Community Unit School District 9 / 2,812 |
| 488. | 40.40 | East Dubuque Community Unit School District 119 / 4,145 |
| 488. | 40.40 | Roanoke-Benson Community Unit School District 60 / 3,387 |
| 497. | 40.50 | Salem Community High School District 600 / 14,662 |
| 497. | 40.50 | Windsor Community Unit School District 1 / 2,553 |
| 497. | 40.50 | North Wayne Community Unit School District 200 / 3,031 |
| 497. | 40.50 | East Alton School District 13 / 7,963 |
| 497. | 40.50 | Pawnee Community Unit School District 11 / 2,995 |
| 497. | 40.50 | Virden Community Unit School District 4 / 4,927 |
| 497. | 40.50 | Du Quoin Community Unit School District 300 / 9,616 |
| 497. | 40.50 | Harrisburg Community Unit School District 3 / 13,347 |
| 505. | 40.60 | Brookfield School District 95 / 10,669 |
| 505. | 40.60 | Metamora Township High School District 122 / 15,154 |
| 505. | 40.60 | Fox Lake Grade School District 114 / 9,238 |
| 505. | 40.60 | Central A & M Community Unit School District 21 / 4,923 |
| 505. | 40.60 | Western Springs School District 101 / 10,075 |
| 505. | 40.60 | West Washington County Community Unit District 10 / 4,077 |
| 511. | 40.70 | Lyons Township High School District 204 / 66,137 |
| 511. | 40.70 | St. Anne Consolidated Community School District 256 / 2,882 |
| 511. | 40.70 | Cornell Community Consolidated School District 426 / 1,089 |
| 511. | 40.70 | Forrestville Valley Community Unit School District 221 / 5,626 |
| 511. | 40.70 | Montmorency Community Consolidated School District 145 / 2,498 |
| 511. | 40.70 | Community Consolidated School District 146 / 28,647 |
| 511. | 40.70 | West Richland Community Unit School District 2 / 2,029 |
| 511. | 40.70 | Elementary School District 159 / 17,247 |
| 519. | 40.80 | Cass School District 63 / 8,572 |
| 519. | 40.80 | Pikeland Community Unit School District 10 / 8,040 |
| 519. | 40.80 | Ottawa Elementary School District 141 / 20,411 |
| 519. | 40.80 | Aptakisic-Tripp Community Consolidated School District / 18,707 |
| 519. | 40.80 | Lexington Community Unit School District 7 / 3,071 |
| 519. | 40.80 | East Coloma School District 12 / 2,647 |
| 519. | 40.80 | Breese School District 12 / 6,783 |
| 519. | 40.80 | Northwestern Community Unit School District 2 / 2,462 |
| 519. | 40.80 | Cypress School District 64 / 1,098 |
| 528. | 40.90 | Coulterville Unit School District 1 / 1,614 |
| 528. | 40.90 | Hampton School District 29 / 2,070 |
| 528. | 40.90 | Tri-City Community Unit School District 1 / 3,051 |
| 528. | 40.90 | Ladd Community Consolidated School District 94 / 1,604 |
| 528. | 40.90 | Mulberry Grove Community Unit School District 1 / 2,614 |
| 528. | 40.90 | Oak Lawn-Hometown School District 123 / 32,880 |
| 528. | 40.90 | St. Libory Consolidated School District 30 / 741 |
| 528. | 40.90 | East Richland Community Unit School District 1 / 13,566 |
| 528. | 40.90 | Fremont School District 79 / 14,383 |
| 528. | 40.90 | Ashton Community Unit School District 275 / 4,641 |
| 528. | 40.90 | Edgar County Community Unit District 6 / 2,316 |
| 528. | 40.90 | Name N/A / 3,244 |
| 528. | 40.90 | Kildeer Countryside Community Consolidated School District 96 / 24,304 |
| 528. | 40.90 | V.I.T. Community Unit School District 2 / 2,274 |
| 528. | 40.90 | Frankfort Community Unit School District 168 / 11,766 |
| 528. | 40.90 | Elmwood Community Unit School District 322 / 3,595 |
| 544. | 41.00 | Hinckley-Big Rock Community Unit School District 429 / 5,933 |
| 544. | 41.00 | Marissa Community Unit School District 40 / 3,347 |
| 544. | 41.00 | Fox River Grove Consolidated School District 3 / 4,841 |
| 544. | 41.00 | Westville Community Unit School District 2 / 7,087 |
| 544. | 41.00 | Payson Community Unit School District 1 / 3,568 |
| 544. | 41.00 | Litchfield Community Unit School District 12 / 8,584 |
| 544. | 41.00 | Dongola School Unit District 66 / 1,814 |
| 544. | 41.00 | Rondout School District 72 / 1,808 |
| 544. | 41.00 | Adlai E. Stevenson High School District 125 / 63,081 |
| 544. | 41.00 | Rock Falls Township High School District 301 / 14,692 |
| 544. | 41.00 | Lake Bluff Elementary School District 65 / 8,927 |
| 544. | 41.00 | Athens Community Unit School District 213 / 5,585 |
| 544. | 41.00 | Nashville Community High School District 99 / 8,953 |
| 544. | 41.00 | Waterloo Community Unit School District 5 / 17,648 |
| 558. | 41.10 | Ramsey Community Unit School District 204 / 2,718 |
| 558. | 41.10 | Lisbon Community Consolidated School District 90 / 856 |
| 558. | 41.10 | Central City School District 133 / 2,210 |
| 558. | 41.10 | Damiansville School District 62 / 963 |
| 558. | 41.10 | Glencoe School District 35 / 8,771 |
| 558. | 41.10 | Name N/A / 1,095 |
| 558. | 41.10 | Freeburg Community High School District 77 / 12,110 |
| 558. | 41.10 | Clinton Community Unit School District 15 / 11,367 |
| 558. | 41.10 | Deerfield School District 109 / 22,670 |
| 567. | 41.20 | Marion Community Unit School District 2 / 26,958 |
| 567. | 41.20 | Washington School District 52 / 7,293 |
| 567. | 41.20 | Grand Ridge Community Consolidated School District 95 / 2,454 |
| 567. | 41.20 | Rosemont Elementary School District 78 / 1,857 |
| 567. | 41.20 | Community Unit School District 2 / 6,078 |
| 567. | 41.20 | Beecher City Community Unit School District 20 / 2,557 |
| 567. | 41.20 | Newark Community High School District 18 / 3,368 |
| 567. | 41.20 | Erie Community Unit School District 1 / 4,091 |
| 567. | 41.20 | Chadwick-Milledgeville Community Unit School District 399 / 3,273 |
| 567. | 41.20 | Newark Community Consolidated School District 66 / 2,336 |
| 577. | 41.30 | Miller Township Community Consolidated School District / 2,141 |
| 577. | 41.30 | Vandalia Community Unit School District 203 / 9,977 |
| 577. | 41.30 | Hamilton Community Consolidated School District 328 / 3,693 |
| 577. | 41.30 | Barrington Community Unit School District 220 / 44,741 |
| 581. | 41.40 | Metamora Community Consolidated School District 1 / 6,317 |
| 581. | 41.40 | Dalzell School District 98 / 830 |
| 581. | 41.40 | Arlington Heights School District 25 / 48,637 |
| 581. | 41.40 | Nippersink School District 2 / 12,268 |
| 581. | 41.40 | Millstadt Consolidated Community School District 160 / 8,025 |
| 581. | 41.40 | Dixon Unit School District 170 / 21,710 |
| 581. | 41.40 | Richmond-Burton Community High School District 157 / 12,268 |
| 581. | 41.40 | Lowpoint-Washburn Community Unit School District 21 / 2,369 |
| 581. | 41.40 | Pleasant Plains Community Unit School District 8 / 7,424 |
| 581. | 41.40 | Massac Unit School District 1 / 13,392 |
| 591. | 41.50 | Community Unit School District 16 / 4,974 |
| 591. | 41.50 | Downers Grove Grade School District 58 / 53,011 |
| 591. | 41.50 | Canton Union School District 66 / 17,414 |
| 591. | 41.50 | Casey-Westfield Community Unit School District 4C / 6,296 |
| 591. | 41.50 | Wolf Branch School District 113 / 7,337 |
| 591. | 41.50 | Abingdon Community Unit School District 217 / 4,290 |
| 591. | 41.50 | High Mount School District 116 / 4,545 |
| 591. | 41.50 | Jasper County Community Unit School District 1 / 9,336 |
| 599. | 41.60 | Malden Community Consolidated School District 84 / 671 |
| 599. | 41.60 | Deer Park Community Consolidated School District 82 / 749 |
| 599. | 41.60 | Hamilton County Community Unit School District 10 / 7,649 |
| 599. | 41.60 | Blue Ridge Community Unit School District 18 / 5,565 |
| 599. | 41.60 | Flossmoor School District 161 / 20,487 |
| 599. | 41.60 | Dimmick Community Consolidated School District 175 / 1,177 |
| 599. | 41.60 | Ottawa Township High School District 140 / 31,749 |
| 599. | 41.60 | Sesser-Valier Community Unit School District 196 / 4,391 |
| 599. | 41.60 | Rome Community Consolidated School District 2 / 3,025 |
| 608. | 41.70 | Herscher Community Unit School District 2 / 10,597 |
| 608. | 41.70 | Olympia Community Unit School District 16 / 12,530 |
| 608. | 41.70 | Century Community Unit School District 100 / 2,898 |
| 608. | 41.70 | Thompsonville Community Unit School District 174 / 2,047 |
| 608. | 41.70 | Crescent Iroquois Community Unit School District 249 / 969 |
| 608. | 41.70 | South Central Community Unit School District 401 / 4,294 |
| 614. | 41.80 | Lena-Winslow Community Unit School District 202 / 5,026 |
| 614. | 41.80 | Township High School District 113 / 61,582 |
| 614. | 41.80 | Maine Township High School District 207 / 139,587 |
| 614. | 41.80 | Oblong Community Unit School District 4 / 3,824 |
| 618. | 41.90 | Wabash Community Unit School District 348 / 10,990 |
| 618. | 41.90 | Emmons School District 33 / 3,610 |
| 618. | 41.90 | Itasca School District 10 / 8,500 |
| 618. | 41.90 | Sherrard Community Unit School District 200 / 9,235 |
| 618. | 41.90 | Milford Community Consolidated School District 280 / 3,807 |
| 618. | 41.90 | Smithton Community Consolidated School District 130 / 3,993 |
| 618. | 41.90 | Fairfield Community High School District 225 / 10,364 |
| 618. | 41.90 | Ashley Community Consolidated School District 15 / 2,339 |
| 618. | 41.90 | Milford Township High School District 233 / 3,807 |
| 618. | 41.90 | Wilmette School District 39 / 26,023 |
| 628. | 42.00 | Putnam County Community Unit School District 535 / 5,431 |
| 628. | 42.00 | Spring Valley Community Consolidated School District 99 / 5,829 |
| 628. | 42.00 | Dwight Common School District 232 / 6,181 |
| 628. | 42.00 | Consolidated High School District 230 / 155,984 |
| 628. | 42.00 | Richland School District 88A / 10,594 |
| 628. | 42.00 | Peru Elementary School District 124 / 9,971 |
| 628. | 42.00 | Glenview Community Consolidated School District 34 / 39,907 |
| 628. | 42.00 | Mount Olive Community Unit School District 5 / 3,375 |
| 628. | 42.00 | South Holland School District 150 / 9,685 |
| 637. | 42.10 | Hinsdale Township High School District 86 / 77,530 |
| 637. | 42.10 | New Trier Township High School District 203 / 59,667 |
| 637. | 42.10 | East Maine School District 63 / 45,166 |
| 637. | 42.10 | Hillsboro Community Unit School District 3 / 12,979 |
| 637. | 42.10 | Riley Community Consolidated School District 18 / 3,142 |
| 637. | 42.10 | Dwight Township High School District 230 / 6,462 |
| 637. | 42.10 | Morton Grove School District 70 / 8,293 |
| 637. | 42.10 | Tri-Point Community Unit School District 6-J / 2,823 |
| 637. | 42.10 | Durand Community Unit School District 322 / 4,634 |
| 637. | 42.10 | Benton Consolidated High School District 103 / 12,336 |
| 637. | 42.10 | West Prairie Community Unit School District 103 / 4,736 |
| 648. | 42.20 | Calhoun Community Unit School District 40 / 3,302 |
| 648. | 42.20 | Mount Prospect School District 57 / 19,671 |
| 648. | 42.20 | Riverside Brookfield Township School District 208 / 27,463 |
| 648. | 42.20 | Hall High School District 502 / 9,021 |
| 652. | 42.30 | Farmington Central Community Unit School District 265 / 7,794 |
| 652. | 42.30 | Cobden School Unit District 17 / 3,710 |
| 654. | 42.40 | Riverdale Community Unit School District 100 / 6,733 |
| 654. | 42.40 | Iroquois County Community Unit School District 9 / 7,178 |
| 654. | 42.40 | Homewood-Flossmoor Community High School District 233 / 36,480 |
| 654. | 42.40 | Spoon River Valley Community Unit School District 4 / 2,273 |
| 654. | 42.40 | Taylorville Community Unit School District 3 / 18,423 |
| 654. | 42.40 | Gallatin Community Unit School District 7 / 5,580 |
| 654. | 42.40 | Norris City-Omaha-Enfield Community Unit School District 3 / 4,375 |
| 661. | 42.50 | Lemont Township High School District 210 / 23,740 |
| 661. | 42.50 | Skokie School District 68 / 21,113 |
| 661. | 42.50 | Atwood-Hammond Community Unit School District 39 / 2,401 |
| 661. | 42.50 | Brimfield Community Unit School District 309 / 3,052 |
| 661. | 42.50 | Christopher Community Unit School District 99 / 4,877 |
| 666. | 42.60 | Winfield School District 34 / 4,638 |
| 666. | 42.60 | Kings Consolidated School District 144 / 1,029 |
| 666. | 42.60 | Elverado Community Unit School District 196 / 2,824 |
| 666. | 42.60 | Warren Community Unit School District 205 / 2,575 |
| 666. | 42.60 | Bethel School District 82 / 1,103 |
| 666. | 42.60 | Lake Forest Community High School District 115 / 29,962 |
| 666. | 42.60 | Morrison Community Unit School District 6 / 6,947 |
| 666. | 42.60 | Bunker Hill Community Unit School District 8 / 4,337 |
| 666. | 42.60 | Benton Community Consolidated School District 47 / 9,861 |
| 666. | 42.60 | Lemont-Bromberek Combined School District 113A / 23,543 |
| 676. | 42.70 | Crab Orchard Community Unit School District 3 / 2,228 |
| 676. | 42.70 | Willow Grove School District 46 / 2,239 |
| 676. | 42.70 | Grant Community Consolidated School District 110 / 7,532 |
| 676. | 42.70 | Field Community Consolidated School District 3 / 2,300 |
| 676. | 42.70 | Anna Jonesboro Community High School District 81 / 11,442 |
| 676. | 42.70 | Farrington Community Consolidated School District 99 / 532 |
| 676. | 42.70 | Geneseo Community Unit School District 228 / 15,997 |
| 676. | 42.70 | Park Ridge Consolidated Community School District 64 / 39,374 |
| 676. | 42.70 | Freeport School District 145 / 29,832 |
| 676. | 42.70 | Centralia High School District 200 / 22,033 |
| 676. | 42.70 | Odin School District 122 / 1,785 |
| 676. | 42.70 | Monticello Community Unit School District 25 / 8,588 |
| 688. | 42.80 | Homewood School District 153 / 15,581 |
| 688. | 42.80 | ROWVA Community Unit School District 208 / 4,130 |
| 688. | 42.80 | North Shore School District 112 / 36,884 |
| 688. | 42.80 | Paris-Union School District 95 / 8,648 |
| 688. | 42.80 | Orland School District 135 / 53,482 |
| 688. | 42.80 | Morton Community Unit School District 709 / 18,644 |
| 688. | 42.80 | Spring Lake Community Consolidated School District 606 / 778 |
| 695. | 42.90 | Robinson Community Unit School District 2 / 11,881 |
| 695. | 42.90 | Bismarck-Henning Consolidated Unit School District / 4,139 |
| 695. | 42.90 | Centralia School District 135 / 13,934 |
| 695. | 42.90 | Williamsville Community Unit School District 15 / 6,461 |
| 695. | 42.90 | Odin Community High School District 700 / 1,757 |
| 695. | 42.90 | Woodlawn Community High School District 205 / 3,079 |
| 695. | 42.90 | Jamaica Community Unit School District 12 / 2,144 |
| 702. | 43.00 | Komarek School District 94 / 4,780 |
| 702. | 43.00 | Darien School District 61 / 15,515 |
| 702. | 43.00 | DeLand-Weldon Community Unit School District 57 / 1,427 |
| 702. | 43.00 | Rockridge Community Unit School District 300 / 7,388 |
| 702. | 43.00 | St. Anne Community High School District 302 / 5,443 |
| 707. | 43.10 | United Community School District 304 / 6,855 |
| 707. | 43.10 | McClellan Community Consolidated School District 12 / 974 |
| 707. | 43.10 | Lake Forest School District 67 / 20,797 |
| 710. | 43.20 | Camp Point Community Unit School District 3 / 5,012 |
| 710. | 43.20 | Cherry School District 92 / 495 |
| 710. | 43.20 | Nelson Public School District 8 / 319 |
| 710. | 43.20 | Morrisonville Community Unit School District 1 / 1,834 |
| 710. | 43.20 | Germantown School District 60 / 1,838 |
| 710. | 43.20 | Riverside School District 96 / 12,776 |
| 716. | 43.30 | Willow Springs School District 108 / 4,045 |
| 716. | 43.30 | Akin Community Consolidated School District 91 / 693 |
| 716. | 43.30 | Western Community Unit School District 12 / 4,041 |
| 716. | 43.30 | Anna Community Consolidated School District 37 / 7,252 |
| 716. | 43.30 | Galatia Community Unit School District 1 / 2,302 |
| 716. | 43.30 | Carmi-White County Community Unit School District 5 / 9,454 |
| 716. | 43.30 | Argenta-Oreana Community Unit School District 1 / 4,686 |
| 716. | 43.30 | Robein School District 85 / 2,044 |
| 716. | 43.30 | Southeastern Community Unit School District 337 / 3,096 |
| 725. | 43.40 | Amboy Community Unit School District 272 / 5,427 |
| 725. | 43.40 | Carthage Elementary School District 317 / 4,124 |
| 725. | 43.40 | Havana Community Unit School District 126 / 6,651 |
| 725. | 43.40 | Villa Grove Community Unit School District 302 / 4,171 |
| 725. | 43.40 | Gifford Community Consolidated School District 188 / 1,427 |
| 725. | 43.40 | Cambridge Community Unit School District 227 / 3,021 |
| 731. | 43.50 | Lincolnshire-Prairieview School District 103 / 13,705 |
| 731. | 43.50 | Niles Township Community High School District 219 / 94,511 |
| 731. | 43.50 | Paxton-Buckley-Loda Community Unit School District 10 / 8,567 |
| 731. | 43.50 | Grayville Community Unit School District 1 / 2,249 |
| 735. | 43.60 | Prairieview-Ogden Community Consolidated School District 197 / 2,436 |
| 735. | 43.60 | Palestine Community Unit School District 3 / 2,325 |
| 735. | 43.60 | Winchester Community Unit School District 1 / 3,761 |
| 738. | 43.70 | Sullivan Community Unit School District 300 / 7,263 |
| 738. | 43.70 | Cissna Park Community Unit School District 6 / 1,791 |
| 738. | 43.70 | Egyptian Community Unit School District 5 / 3,674 |
| 738. | 43.70 | Bement Community Unit School District 5 / 2,806 |
| 738. | 43.70 | Shirland Community Consolidated School District 134 / 1,893 |
| 738. | 43.70 | Illini Central Community Unit School District 189 / 5,040 |
| 744. | 43.80 | Knoxville Community Unit School District 202 / 5,883 |
| 744. | 43.80 | Waverly Community Unit School District 6 / 1,733 |
| 744. | 43.80 | Iuka Community Consolidated School District 7 / 1,859 |
| 744. | 43.80 | Stark County Community Unit School District 100 / 4,849 |
| 748. | 43.90 | Monroe School District 70 / 2,637 |
| 748. | 43.90 | Schuyler-Industry Community Unit School District 5 / 7,309 |
| 748. | 43.90 | Center Cass School District 66 / 11,134 |
| 748. | 43.90 | Oakland Community Unit School District 5 / 2,129 |
| 752. | 44.00 | Bushnell-Prairie City Community Unit School District 170 / 4,482 |
| 752. | 44.00 | Hillside School District 93 / 5,305 |
| 752. | 44.00 | Westchester School District 92-5 / 14,871 |
| 752. | 44.00 | Fulton County Community Unit School District 3 / 3,662 |
| 752. | 44.00 | Skokie-Fairview School District 72 / 6,662 |
| 752. | 44.00 | River Bend Community Unit District 2 / 6,710 |
| 758. | 44.10 | River Trails School District 26 / 15,778 |
| 758. | 44.10 | Sparta Community Unit School District 140 / 8,750 |
| 758. | 44.10 | Northfield Township High School District 225 / 85,342 |
| 758. | 44.10 | Astoria Community Unit School District 1 / 2,130 |
| 758. | 44.10 | Galva Community Unit School District 224 / 3,689 |
| 763. | 44.20 | Porta Community Unit School District 202 / 6,925 |
| 763. | 44.20 | Hardin County Community Unit School District 1 / 4,470 |
| 763. | 44.20 | Riverview Consolidated Community School District 2 / 2,603 |
| 763. | 44.20 | Momence Community Unit School District 1 / 7,531 |
| 763. | 44.20 | Oglesby Elementary School District 125 / 4,408 |
| 768. | 44.30 | Rooks Creek Community Consolidated School District 425 / 414 |
| 768. | 44.30 | Name N/A / 5,623 |
| 768. | 44.30 | Orion Community Unit School District 223 / 5,776 |
| 771. | 44.40 | Riverton Community Unit School District 14 / 8,083 |
| 771. | 44.40 | Oak Grove School District 68 / 3,595 |
| 771. | 44.40 | Eastland Community Unit School District 308 / 4,460 |
| 774. | 44.50 | Princeton High School District 500 / 12,111 |
| 774. | 44.50 | Fairfield Public School District 112 / 6,251 |
| 774. | 44.50 | Raccoon Consolidated School District 1 / 2,238 |
| 774. | 44.50 | Dodds Community Consolidated School District 7 / 1,503 |
| 778. | 44.60 | Ridgeview Community Unit School District 19 / 4,044 |
| 778. | 44.60 | Cerro Gordo Community Unit School District 100 / 2,810 |
| 778. | 44.60 | Irvington County Community Unit School District 11 / 797 |
| 778. | 44.60 | Prospect Heights School District 23 / 17,863 |
| 778. | 44.60 | Peoria Heights Community Unit School District 325 / 7,095 |
| 778. | 44.60 | Pembroke Consolidated Community School District 259 / 2,561 |
| 784. | 44.70 | Brussels Community Unit School District 42 / 1,469 |
| 784. | 44.70 | Armstrong-Ellis Consolidated School District 61 / 960 |
| 784. | 44.70 | Alden-Hebron School District 19 / 3,069 |
| 784. | 44.70 | Midland Community Unit School District 7 / 5,363 |
| 784. | 44.70 | Princeton Elementary School District 115 / 11,430 |
| 784. | 44.70 | Catlin Community Unit School District 5 / 2,744 |
| 790. | 44.80 | Ridgewood Community High School District 234 / 18,237 |
| 790. | 44.80 | Palos Heights School District 128 / 9,613 |
| 790. | 44.80 | West Carroll Community Unit School District 314 / 9,144 |
| 790. | 44.80 | Edwards County Community Unit School District 1 / 5,564 |
| 794. | 44.90 | North Clay Community Unit School District 25 / 3,650 |
| 795. | 45.00 | Gillespie Community Unit School District 7 / 7,982 |
| 795. | 45.00 | Carrollton Community Unit School District 1 / 3,899 |
| 795. | 45.00 | Northbrook School District 28 / 13,725 |
| 795. | 45.00 | Martinsville Community Unit School District 3C / 2,372 |
| 795. | 45.00 | Wayne City Community Unit School District 100 / 2,900 |
| 795. | 45.00 | Pinckneyville School District 50 / 5,717 |
| 801. | 45.10 | Nauvoo-Colusa Community Unit School District 325 / 1,948 |
| 802. | 45.20 | Summersville School District 79 / 2,104 |
| 802. | 45.20 | Armstrong Township High School District 225 / 1,320 |
| 802. | 45.20 | Franklin Community Unit School District 1 / 1,558 |
| 805. | 45.30 | Community Unit School District 4 / 4,115 |
| 805. | 45.30 | Wallace Community Consolidated School District 195 / 2,339 |
| 805. | 45.30 | Woodland Community Unit School District 5 / 3,132 |
| 808. | 45.40 | Shiloh Community Unit School District 1 / 3,065 |
| 808. | 45.40 | Northbrook Elementary School District 27 / 11,603 |
| 808. | 45.40 | Alwood Community Unit School District 225 / 2,212 |
| 808. | 45.40 | Lincolnwood School District 74 / 11,782 |
| 808. | 45.40 | Lick Creek Community Consolidated School District 16 / 1,030 |
| 813. | 45.50 | West Central Community Unit School District 235 / 6,413 |
| 813. | 45.50 | Riverdale School District 14 / 1,195 |
| 813. | 45.50 | Hartsburg-Emden Community Unit School District 21 / 1,241 |
| 813. | 45.50 | Lewistown Community Unit School District 97 / 5,262 |
| 813. | 45.50 | Dakota Community Unit School District 201 / 4,354 |
| 813. | 45.50 | Shelbyville Community Unit School District 4 / 7,583 |
| 819. | 45.60 | Limestone Walters Community Consolidated School District 316 / 1,585 |
| 820. | 45.70 | Oregon Community Unit School District 220 / 11,429 |
| 821. | 45.80 | Neoga Community Unit School District 3 / 4,777 |
| 821. | 45.80 | East Prairie School District 73 / 4,515 |
| 823. | 45.90 | Henry-Senachwine Consolidated Unit School District 5 / 3,905 |
| 823. | 45.90 | Golf Elementary School District 67 / 6,306 |
| 823. | 45.90 | Illini West High School District 307 / 8,563 |
| 823. | 45.90 | Pope County Community Unit School District 1 / 4,071 |
| 827. | 46.10 | Bloomingdale School District 13 / 13,793 |
| 828. | 46.20 | Grass Lake School District 36 / 2,737 |
| 828. | 46.20 | Pleasant Hill Community Unit School District 3 / 2,168 |
| 828. | 46.20 | Rutland Community Consolidated School District 230 / 755 |
| 831. | 46.30 | Salt Creek School District 48 / 9,406 |
| 831. | 46.30 | Pleasantdale School District 107 / 8,126 |
| 831. | 46.30 | Hoyleton Consolidated School District 29 / 1,190 |
| 834. | 46.40 | Giant City Community Consolidated School District 130 / 2,109 |
| 834. | 46.40 | La Harpe Community School District 347 / 2,328 |
| 834. | 46.40 | Paris Community Unit School District 4 / 4,339 |
| 837. | 46.50 | LaGrange Highlands School District 106 / 8,547 |
| 838. | 46.60 | Patoka Community Unit School District 100 / 1,473 |
| 838. | 46.60 | Leepertown Community Consolidated School District 175 / 280 |
| 838. | 46.60 | Galena Unit School District 120 / 5,525 |
| 841. | 46.70 | Goreville Community Unit School District 1 / 3,419 |
| 842. | 46.80 | Hollis Consolidated School District 328 / 603 |
| 842. | 46.80 | Harmony Emge School District 175 / 9,592 |
| 842. | 46.80 | Carrier Mills-Stonefort Community Unit School District / 2,986 |
| 845. | 46.90 | Avon Community Unit School District 176 / 1,914 |
| 845. | 46.90 | Wethersfield Community Unit School District 230 / 3,683 |
| 847. | 47.00 | Stockton Community Unit School District 206 / 4,174 |
| 847. | 47.00 | Name N/A / 1,639 |
| 849. | 47.10 | Allen Township Community Consolidated School District 65 / 966 |
| 850. | 47.30 | Pennoyer School District 79 / 4,852 |
| 850. | 47.30 | Northbrook/Glenview School District 30 / 10,861 |
| 852. | 47.60 | Norridge School District 80 / 12,435 |
| 853. | 47.80 | Woodlawn Community Consolidated School District 4 / 2,467 |
| 854. | 47.90 | Sunset Ridge School District 29 / 4,088 |
| 855. | 48.00 | Fairmont School District 89 / 3,120 |
| 856. | 48.20 | Nettle Creek Community Consolidated School District 24C / 892 |
| 856. | 48.20 | West Northfield School District 31 / 9,246 |
| 858. | 48.60 | Avoca School District 37 / 5,818 |
| 859. | 48.70 | Palos Community Consolidated School District 118 / 23,341 |
| 860. | 48.80 | Mount Pulaski Community Unit District 23 / 3,676 |
| 861. | 48.90 | Dallas Elementary School District 327 / 2,111 |
| 862. | 49.30 | River Ridge Community Unit School District 210 / 4,043 |
| 862. | 49.30 | Iroquois West Community Unit School District 10 / 6,370 |
| 864. | 49.90 | Brooklyn Community Unit School District 188 / 399 |
| 865. | 50.00 | Neponset Community Consolidated District 307 / 874 |
| 866. | 51.30 | Gower School District 62 / 10,468 |
| 867. | 52.20 | Scales Mound Community Unit School District 211 / 1,621 |
| 868. | 52.30 | Clay City Community Unit District 10 / 2,293 |
| 869. | 52.40 | Niles Elementary School District 71 / 7,270 |
| 870. | 52.50 | Butler School District 53 / 5,478 |
| 871. | 53.00 | Williamsfield Community Unit School District 210 / 1,882 |
Please note that we only rank locations with 'Median Age' data. The rank above might not be a complete list. Locations without 'Median Age' data are not listed.
*ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.
