| Rank | Median Age ▲ | School District / Population |
| 1. | 23.20 | North Chicago School District 187 / 29,043 |
| 2. | 23.90 | Carbondale Elementary School District 95 / 27,528 |
| 3. | 24.10 | Bannockburn School District 106 / 2,177 |
| 4. | 24.30 | DeKalb Community Unit School District 428 / 52,506 |
| 5. | 24.70 | Macomb Community Unit School District 185 / 22,464 |
| 5. | 24.70 | Urbana School District 116 / 50,963 |
| 7. | 25.20 | Carbondale Community High School District 165 / 37,544 |
| 8. | 25.80 | Charleston Community Unit School District 1 / 28,395 |
| 9. | 26.10 | General George Patton School District 133 / 2,020 |
| 10. | 27.20 | Lincoln Elementary School District 156 / 7,611 |
| 11. | 28.40 | Champaign Community Unit School District 4 / 95,918 |
| 12. | 28.60 | Cicero School District 99 / 84,481 |
| 13. | 28.70 | Brooklyn Community Unit School District 188 / 807 |
| 14. | 29.20 | Sandridge School District 172 / 4,425 |
| 14. | 29.20 | McLean County Unit School District 5 / 97,056 |
| 16. | 29.30 | Carbon Cliff-Barstow School District 36 / 1,812 |
| 17. | 29.60 | Aurora East Unit School District 131 / 84,673 |
| 18. | 29.80 | Unity Point Community Consolidated School District 140 / 5,438 |
| 19. | 30.30 | Summit School District 104 / 12,603 |
| 19. | 30.30 | Ford Heights School District 169 / 2,777 |
| 21. | 30.50 | Zion Elementary School District 6 / 17,432 |
| 22. | 30.70 | Mascoutah Community Unit School District 19 / 17,996 |
| 23. | 30.80 | Plano Community Unit School District 88 / 11,378 |
| 23. | 30.80 | Berwyn North School District 98 / 26,086 |
| 25. | 30.90 | Harvard Community Unit School District 50 / 13,486 |
| 25. | 30.90 | Central Stickney School District 110 / 3,481 |
| 27. | 31.00 | Waukegan Community Unit School District 60 / 83,647 |
| 28. | 31.20 | J. Sterling Morton High School District 201 / 159,527 |
| 29. | 31.30 | Arthur Community Unit School District 305 / 7,681 |
| 30. | 31.60 | Round Lake Community Unit School District 116 / 36,177 |
| 31. | 31.70 | Community Consolidated School District 168 / 10,352 |
| 31. | 31.70 | Rhodes School District 84-5 / 4,870 |
| 31. | 31.70 | Creston Community Consolidated School District 161 / 1,110 |
| 34. | 32.20 | Cahokia Community Unit School District 187 / 18,889 |
| 35. | 32.60 | Depue Community Unit School District 103 / 1,865 |
| 35. | 32.60 | Taft School District 90 / 3,740 |
| 35. | 32.60 | Chicago Heights School District 170 / 24,090 |
| 38. | 32.80 | Harvey School District 152 / 16,747 |
| 38. | 32.80 | Joliet Public School District 86 / 83,967 |
| 38. | 32.80 | Lisbon Community Consolidated School District 90 / 925 |
| 41. | 33.00 | Bradley School District 61 / 13,139 |
| 41. | 33.00 | Manhattan School District 114 / 9,143 |
| 41. | 33.00 | Marquardt School District 15 / 26,458 |
| 44. | 33.10 | West Chicago School District 33 / 30,853 |
| 44. | 33.10 | Minooka Community Consolidated School District 201 / 24,332 |
| 46. | 33.20 | Plainfield School District 202 / 122,136 |
| 47. | 33.40 | Bloomington School District 87 / 44,445 |
| 47. | 33.40 | Rantoul City School District 137 / 12,838 |
| 47. | 33.40 | Community Consolidated School District 180 / 6,926 |
| 47. | 33.40 | Chicago Public School District 299 / 2,712,608 |
| 47. | 33.40 | Calumet City School District 155 / 11,610 |
| 52. | 33.60 | Bloom Township High School District 206 / 64,695 |
| 52. | 33.60 | Atwood Heights School District 125 / 7,926 |
| 52. | 33.60 | Big Hollow School District 38 / 15,095 |
| 55. | 33.70 | Argo Community High School District 217 / 40,495 |
| 56. | 33.80 | Bradley-Bourbonnais Consolidated High School District 307 / 39,974 |
| 57. | 33.90 | Dolton School District 148 / 22,436 |
| 57. | 33.90 | Valley View Community Unit School District 365U / 92,995 |
| 57. | 33.90 | Oswego Community Unit School District 308 / 77,693 |
| 60. | 34.00 | Peoria School District 150 / 101,620 |
| 60. | 34.00 | Indian Springs School District 109 / 24,678 |
| 62. | 34.10 | Bellwood School District 88 / 23,074 |
| 62. | 34.10 | Yorkville Community Unit School District 115 / 30,038 |
| 62. | 34.10 | Bourbonnais School District 53 / 23,144 |
| 65. | 34.20 | Chester Non-High School District 122 / 973 |
| 65. | 34.20 | Joliet Township High School District 204 / 128,441 |
| 65. | 34.20 | Prairie du Rocher Community Consolidated School District 134 / 973 |
| 68. | 34.40 | Minooka Community High School District 111 / 38,611 |
| 68. | 34.40 | Burnham School District 154-5 / 1,658 |
| 70. | 34.60 | Bartonville School District 66 / 2,549 |
| 70. | 34.60 | Fox River Grove Consolidated School District 3 / 4,266 |
| 72. | 34.70 | Monmouth-Roseville Community Unit School District 238 / 11,641 |
| 73. | 34.80 | Hazel Crest School District 152-5 / 8,175 |
| 73. | 34.80 | Keeneyville School District 20 / 14,535 |
| 75. | 34.90 | East St. Louis School District 189 / 37,689 |
| 75. | 34.90 | Berkeley School District 87 / 22,520 |
| 75. | 34.90 | Allendale Community Consolidated School District 17 / 1,120 |
| 78. | 35.00 | Diamond Lake School District 76 / 8,664 |
| 78. | 35.00 | School District U-46 / 233,909 |
| 78. | 35.00 | Indian Prairie Community Unit School District 204 / 128,486 |
| 81. | 35.10 | Maywood-Melrose Park-Broadview School District 89 / 44,483 |
| 82. | 35.20 | Pleasant Valley School District 62 / 4,868 |
| 82. | 35.20 | Ludlow Community Consolidated School District 142 / 1,129 |
| 82. | 35.20 | Community High School District 94 / 41,834 |
| 82. | 35.20 | Aurora West Unit School District 129 / 75,509 |
| 86. | 35.30 | Bethel School District 82 / 1,072 |
| 86. | 35.30 | Rantoul Township High School District 193 / 17,660 |
| 88. | 35.40 | El Paso-Gridley Community Unit School District 11 / 7,195 |
| 89. | 35.50 | Central School District 104 / 4,970 |
| 89. | 35.50 | Kankakee School District 111 / 32,510 |
| 89. | 35.50 | Evanston Community Consolidated School District 65 / 83,353 |
| 89. | 35.50 | Evanston Township High School District 202 / 83,353 |
| 93. | 35.60 | Silvis School District 34 / 5,498 |
| 93. | 35.60 | South Beloit Community Unit School District 320 / 6,688 |
| 95. | 35.70 | Zion-Benton Township High School District 126 / 44,560 |
| 95. | 35.70 | Ridgeland School District 122 / 21,499 |
| 95. | 35.70 | Edwardsville Community Unit School District 7 / 51,131 |
| 98. | 35.80 | Dunlap Community Unit School District 323 / 21,236 |
| 98. | 35.80 | Chaney-Monge School District 88 / 7,237 |
| 98. | 35.80 | Queen Bee School District 16 / 17,773 |
| 101. | 35.90 | Mannheim School District 83 / 21,174 |
| 101. | 35.90 | Beardstown Community Unit School District 15 / 7,941 |
| 101. | 35.90 | South Holland School District 151 / 13,930 |
| 101. | 35.90 | South Central Community Unit School District 401 / 5,051 |
| 101. | 35.90 | Central Community Unit School District 301 / 19,083 |
| 106. | 36.00 | St. George Community Consolidated School District 258 / 3,691 |
| 106. | 36.00 | Posen-Robbins Elementary School District 143-5 / 12,155 |
| 106. | 36.00 | Woodridge School District 68 / 33,075 |
| 106. | 36.00 | Reavis Township High School District 220 / 33,438 |
| 110. | 36.10 | St. Rose School District 14-15 / 1,464 |
| 110. | 36.10 | Lowpoint-Washburn Community Unit School District 21 / 2,511 |
| 110. | 36.10 | Chicago Ridge School District 127-5 / 13,466 |
| 113. | 36.20 | Warren Township High School District 121 / 68,666 |
| 113. | 36.20 | Rosemont Elementary School District 78 / 2,309 |
| 115. | 36.30 | Gurnee School District 56 / 18,744 |
| 115. | 36.30 | Sycamore Community Unit School District 427 / 22,208 |
| 115. | 36.30 | Arcola Consolidated Unit School District 306 / 4,441 |
| 115. | 36.30 | Park Forest School District 163 / 15,658 |
| 115. | 36.30 | Woodland Community Consolidated School District 50 / 50,954 |
| 120. | 36.40 | Alsip-Hazelgreen-Oaklawn School District 126 / 17,417 |
| 120. | 36.40 | Kewanee Community Unit School District 229 / 10,897 |
| 120. | 36.40 | Troy Community Consolidated School District 30C / 36,092 |
| 120. | 36.40 | Cook County School District 130 / 30,726 |
| 124. | 36.50 | Meridian Community Unit School District 223 / 8,741 |
| 124. | 36.50 | Addison School District 4 / 38,180 |
| 124. | 36.50 | Hoyleton Consolidated School District 29 / 977 |
| 124. | 36.50 | Steger School District 194 / 13,985 |
| 124. | 36.50 | Mundelein Consolidated High School District 120 / 44,244 |
| 124. | 36.50 | Thornton Fractional Township High School District 215 / 60,994 |
| 130. | 36.60 | Lyons School District 103 / 22,581 |
| 130. | 36.60 | Community Unit School District 300 / 111,782 |
| 130. | 36.60 | Aviston School District 21 / 2,837 |
| 130. | 36.60 | Prairie-Hills Elementary School District 144 / 22,837 |
| 134. | 36.70 | Mazon-Verona-Kinsman Elementary School District 2C / 2,799 |
| 134. | 36.70 | Grayslake Consolidated Community School District 46 / 29,536 |
| 134. | 36.70 | Patoka Community Unit School District 100 / 1,692 |
| 134. | 36.70 | O'Fallon Community Consolidated School District 90 / 29,590 |
| 134. | 36.70 | Wauconda Community Unit School District 118 / 27,619 |
| 134. | 36.70 | Teutopolis Community Unit School District 50 / 5,323 |
| 134. | 36.70 | Hawthorn Community Consolidated School District 73 / 30,575 |
| 141. | 36.80 | Rochelle Community Consolidated District 231 / 13,472 |
| 141. | 36.80 | Summit Hill School District 161 / 23,646 |
| 141. | 36.80 | Bensenville School District 2 / 19,900 |
| 141. | 36.80 | Catlin Community Unit School District 5 / 3,113 |
| 141. | 36.80 | Farrington Community Consolidated School District 99 / 621 |
| 141. | 36.80 | Coal City Community Unit School District 1 / 11,131 |
| 147. | 36.90 | Berwyn South School District 100 / 30,676 |
| 147. | 36.90 | Thornton Township High School District 205 / 114,889 |
| 147. | 36.90 | West Lincoln-Broadwell Elementary School District 92 / 4,963 |
| 147. | 36.90 | Ina Community Consolidated School District 8 / 3,060 |
| 147. | 36.90 | O'Fallon Township High School District 203 / 40,469 |
| 147. | 36.90 | Rockdale School District 84 / 2,240 |
| 147. | 36.90 | Cairo Community Unit School District 1 / 2,950 |
| 154. | 37.00 | Schaumburg Community Consolidated School District 54 / 133,914 |
| 154. | 37.00 | Chester-East Lincoln Community Csd 61 / 5,048 |
| 154. | 37.00 | Leyden Community High School District 212 / 64,439 |
| 157. | 37.10 | Dolton School District 149 / 27,206 |
| 157. | 37.10 | Proviso Township High School District 209 / 126,972 |
| 157. | 37.10 | West Harvey-Dixmoor Public School District 147 / 9,990 |
| 157. | 37.10 | Carterville Community Unit School District 5 / 11,927 |
| 157. | 37.10 | Gardner Community Consolidated School District 72C / 1,663 |
| 157. | 37.10 | Bremen Community High School District 228 / 94,083 |
| 163. | 37.20 | Seneca Community Consolidated School District 170 / 3,778 |
| 163. | 37.20 | Red Hill Community Unit School District 10 / 9,035 |
| 165. | 37.30 | Grant Community High School District 124 / 36,397 |
| 165. | 37.30 | Rock Island School District 41 / 45,317 |
| 165. | 37.30 | Community Consolidated School District 93 / 35,313 |
| 165. | 37.30 | Carlyle Community Unit School District 1 / 9,775 |
| 165. | 37.30 | New Lenox School District 122 / 38,889 |
| 165. | 37.30 | Brown County Community Unit School District 1 / 6,872 |
| 165. | 37.30 | Braceville School District 75 / 1,399 |
| 165. | 37.30 | Rochelle Township High School District 212 / 16,991 |
| 165. | 37.30 | Burbank School District 111 / 29,957 |
| 174. | 37.40 | Fenton Community High School District 100 / 30,212 |
| 174. | 37.40 | Community Unit School District 2 / 6,076 |
| 174. | 37.40 | Belleville School District 118 / 37,394 |
| 174. | 37.40 | North Palos School District 117 / 28,444 |
| 174. | 37.40 | Midlothian School District 143 / 15,241 |
| 174. | 37.40 | Millburn Community Consolidated School District 24 / 8,008 |
| 174. | 37.40 | South Pekin School District 137 / 1,830 |
| 181. | 37.50 | Rossville-Alvin Community Unit School District 7 / 2,546 |
| 181. | 37.50 | St. Anne Consolidated Community School District 256 / 3,190 |
| 181. | 37.50 | Township High School District 211 / 236,447 |
| 181. | 37.50 | Bartelso School District 57 / 1,292 |
| 181. | 37.50 | St. Joseph Community Consolidated School District 169 / 6,142 |
| 186. | 37.60 | Grayslake Community High School District 127 / 44,701 |
| 186. | 37.60 | Community Consolidated School District 204 / 3,614 |
| 186. | 37.60 | Dongola School Unit District 66 / 2,027 |
| 186. | 37.60 | Lake Villa Community Consolidated School District 41 / 24,136 |
| 186. | 37.60 | Indian Creek Community Unit District 425 / 4,384 |
| 191. | 37.70 | Channahon School District 17 / 10,273 |
| 191. | 37.70 | Madison Community Unit School District 12 / 4,892 |
| 191. | 37.70 | Bond County Community Unit School District 2 / 13,391 |
| 191. | 37.70 | Glen Ellyn School District 41 / 29,772 |
| 191. | 37.70 | Pawnee Community Unit School District 11 / 3,304 |
| 191. | 37.70 | Buncombe Consolidated School District 43 / 721 |
| 197. | 37.80 | Villa Park School District 45 / 36,938 |
| 197. | 37.80 | Whiteside School District 115 / 12,608 |
| 197. | 37.80 | Belvidere Consolidated Unit School District 100 / 45,001 |
| 197. | 37.80 | Arbor Park School District 145 / 12,821 |
| 197. | 37.80 | Giant City Community Consolidated School District 130 / 2,678 |
| 197. | 37.80 | Gardner-South Wilmington Township High School District / 4,037 |
| 197. | 37.80 | Belle Valley School District 119 / 9,582 |
| 197. | 37.80 | Wheeling Community Consolidated School District 21 / 66,232 |
| 197. | 37.80 | Seneca Township High School District 160 / 7,356 |
| 206. | 37.90 | Mount Vernon School District 80 / 13,934 |
| 206. | 37.90 | Palatine Community Consolidated School District 15 / 119,447 |
| 206. | 37.90 | Community Unit School District 200 / 78,843 |
| 206. | 37.90 | Rockford School District 205 / 191,430 |
| 206. | 37.90 | Woodstock Community Unit School District 200 / 37,706 |
| 206. | 37.90 | Worth School District 127 / 11,338 |
| 206. | 37.90 | Tri-Point Community Unit School District 6-J / 3,173 |
| 206. | 37.90 | Community Consolidated School District 59 / 66,255 |
| 206. | 37.90 | Danville Community Consolidated School District 118 / 38,933 |
| 206. | 37.90 | Colona School District 190 / 3,660 |
| 216. | 38.00 | Glenbard Township High School District 87 / 166,784 |
| 216. | 38.00 | Laraway Community Consolidated School District 70C / 3,161 |
| 216. | 38.00 | Oak Lawn Community High School District 229 / 40,564 |
| 216. | 38.00 | Tolono Community Unit School District 7 / 9,537 |
| 216. | 38.00 | Beach Park Community Consolidated School District 3 / 20,446 |
| 216. | 38.00 | Wayne City Community Unit School District 100 / 3,702 |
| 216. | 38.00 | Valmeyer Community Unit School District 3 / 2,579 |
| 216. | 38.00 | Central Community Unit School District 4 / 6,653 |
| 216. | 38.00 | DuPage High School District 88 / 83,355 |
| 225. | 38.10 | Antioch Community Consolidated School District 34 / 23,761 |
| 225. | 38.10 | North Pekin-Marquette Heights School District 102 / 4,954 |
| 225. | 38.10 | Calumet Public School District 132 / 10,701 |
| 225. | 38.10 | Albers School District 63 / 1,409 |
| 225. | 38.10 | Tri-Valley Community Unit School District 3 / 4,882 |
| 230. | 38.20 | LaSalle Elementary School District 122 / 8,895 |
| 230. | 38.20 | South Fork School District 14 / 2,601 |
| 230. | 38.20 | Marengo-Union Elementary Consolidated District 165 / 10,050 |
| 230. | 38.20 | Auburn Community Unit School District 10 / 6,990 |
| 230. | 38.20 | Schiller Park School District 81 / 13,509 |
| 235. | 38.30 | St. Joseph-Ogden Community High School District 305 / 8,276 |
| 235. | 38.30 | Bethalto Consolidated Unit School District 8 / 15,879 |
| 237. | 38.40 | LaGrange School District 105 / 12,573 |
| 237. | 38.40 | Harrison School District 36 / 3,818 |
| 237. | 38.40 | Washington School District 52 / 8,357 |
| 237. | 38.40 | Thomasboro Community Consolidated School District 130 / 2,115 |
| 237. | 38.40 | Wood Dale School District 7 / 10,312 |
| 242. | 38.50 | Community High School District 218 / 121,995 |
| 242. | 38.50 | Riverton Community Unit School District 14 / 7,959 |
| 242. | 38.50 | Grand Ridge Community Consolidated School District 95 / 2,792 |
| 245. | 38.60 | Collinsville Community Unit School District 10 / 48,076 |
| 245. | 38.60 | Ball-Chatham Community Unit School District 5 / 27,509 |
| 245. | 38.60 | Marseilles Elementary School District 150 / 4,120 |
| 245. | 38.60 | Pontiac-William Holliday School District 105 / 7,796 |
| 245. | 38.60 | Malden Community Consolidated School District 84 / 869 |
| 245. | 38.60 | Homer Community Consolidated School District 33C / 29,870 |
| 245. | 38.60 | Chester Community Unit School District 139 / 11,183 |
| 245. | 38.60 | Metamora Community Consolidated School District 1 / 7,045 |
| 253. | 38.70 | Lincoln Community High School District 404 / 23,979 |
| 253. | 38.70 | De Soto Consolidated School District 86 / 1,900 |
| 253. | 38.70 | Central Community High School District 71 / 16,730 |
| 253. | 38.70 | Fisher Community Unit School District 1 / 3,622 |
| 257. | 38.80 | Lincoln Way Community High School District 210 / 105,219 |
| 257. | 38.80 | Waltonville Community Unit School District 1 / 2,067 |
| 257. | 38.80 | Orangeville Community Unit School District 203 / 2,851 |
| 257. | 38.80 | Springfield School District 186 / 113,609 |
| 261. | 38.90 | Decatur School District 61 / 71,435 |
| 261. | 38.90 | Heyworth Community Unit School District 4 / 4,831 |
| 261. | 38.90 | Central School District 51 / 8,004 |
| 261. | 38.90 | Medinah School District 11 / 7,119 |
| 265. | 39.00 | Oak Park Elementary School District 97 / 51,988 |
| 265. | 39.00 | Cumberland Community Unit School District 77 / 6,411 |
| 265. | 39.00 | Forest Park School District 91 / 14,010 |
| 265. | 39.00 | Crystal Lake Community Consolidated School District 47 / 62,372 |
| 265. | 39.00 | Name N/A / 4,816,938 |
| 265. | 39.00 | St. Anne Community High School District 302 / 5,161 |
| 271. | 39.10 | Bradford Community Unit School District 1 / 1,654 |
| 271. | 39.10 | Paris-Union School District 95 / 8,469 |
| 271. | 39.10 | Genoa-Kingston Community Unit School District 424 / 9,139 |
| 271. | 39.10 | Rockton School District 140 / 11,945 |
| 271. | 39.10 | Herrin Community Unit School District 4 / 16,423 |
| 271. | 39.10 | Kaneland Community Unit School District 302 / 25,778 |
| 271. | 39.10 | Saratoga Community Consolidated School District 60C / 6,049 |
| 278. | 39.20 | Peoria Heights Community Unit School District 325 / 6,914 |
| 278. | 39.20 | Tuscola Community Unit School District 301 / 5,759 |
| 278. | 39.20 | Triad Community Unit School District 2 / 21,195 |
| 278. | 39.20 | Elmhurst School District 205 / 47,454 |
| 278. | 39.20 | Grant Park Community Unit School District 6 / 3,320 |
| 278. | 39.20 | Franklin Park School District 84 / 11,086 |
| 278. | 39.20 | Mundelein Elementary School District 75 / 14,958 |
| 285. | 39.30 | United Township High School District 30 / 39,937 |
| 285. | 39.30 | Dupo Community Unit School District 196 / 7,209 |
| 285. | 39.30 | Dieterich Community Unit School District 30 / 2,499 |
| 285. | 39.30 | Eureka Community Unit District 140 / 9,835 |
| 285. | 39.30 | Lebanon Community Unit School District 9 / 5,305 |
| 285. | 39.30 | McHenry Community Consolidated School District 15 / 42,581 |
| 285. | 39.30 | South Wilmington Consolidated School District 74 / 975 |
| 285. | 39.30 | Pekin Community High School District 303 / 45,857 |
| 285. | 39.30 | Thompsonville Community Unit School District 174 / 2,161 |
| 285. | 39.30 | McHenry Community High School District 156 / 45,604 |
| 295. | 39.40 | Ramsey Community Unit School District 204 / 2,709 |
| 295. | 39.40 | Evergreen Park Community High School District 231 / 19,924 |
| 295. | 39.40 | Evergreen Park Elementary School District 124 / 19,924 |
| 295. | 39.40 | Pekin Public School District108 / 34,388 |
| 295. | 39.40 | Marissa Community Unit School District 40 / 3,476 |
| 295. | 39.40 | Name N/A / 8,695 |
| 295. | 39.40 | Le Roy Community Unit School District 2 / 4,619 |
| 302. | 39.50 | Granite City Community Unit School District 9 / 43,198 |
| 302. | 39.50 | ROWVA Community Unit School District 208 / 3,834 |
| 302. | 39.50 | Washington Community High School District 308 / 23,857 |
| 302. | 39.50 | Webber Township High School District 204 / 2,946 |
| 302. | 39.50 | Mattoon Community Unit School District 2 / 23,177 |
| 307. | 39.60 | Community High School District 155 / 96,008 |
| 307. | 39.60 | Bushnell-Prairie City Community Unit School District 170 / 4,230 |
| 307. | 39.60 | Belleville Township High School District 201 / 108,125 |
| 307. | 39.60 | Oak Park and River Forest District 200 / 63,199 |
| 307. | 39.60 | Damiansville School District 62 / 756 |
| 307. | 39.60 | Effingham Community Unit School District 40 / 20,319 |
| 313. | 39.70 | Westville Community Unit School District 2 / 6,818 |
| 313. | 39.70 | Mendota Township High School District 280 / 11,061 |
| 313. | 39.70 | Oglesby Elementary School District 125 / 4,771 |
| 313. | 39.70 | Harlem Unit School District 122 / 44,262 |
| 313. | 39.70 | Hiawatha Community Unit School District 426 / 3,168 |
| 313. | 39.70 | Quincy School District 172 / 51,109 |
| 313. | 39.70 | Pecatonica Community Unit School District 321 / 5,092 |
| 313. | 39.70 | Signal Hill School District 181 / 3,481 |
| 313. | 39.70 | Vandalia Community Unit School District 203 / 11,080 |
| 322. | 39.80 | Brookfield School District 95 / 10,872 |
| 322. | 39.80 | Creve Coeur School District 76 / 6,406 |
| 322. | 39.80 | Moline Unit School District 40 / 48,280 |
| 322. | 39.80 | Mendota Community Consolidated School District 289 / 11,018 |
| 322. | 39.80 | Morris School District 54 / 11,448 |
| 322. | 39.80 | Sunnybrook School District 171 / 10,897 |
| 322. | 39.80 | Morris Community High School District 101 / 18,171 |
| 322. | 39.80 | Pleasant Hill School District 69 / 1,831 |
| 322. | 39.80 | Kirby School District 140 / 35,585 |
| 322. | 39.80 | Tremont Community Unit School District 702 / 5,070 |
| 332. | 39.90 | Rock Falls Elementary School District 13 / 8,878 |
| 332. | 39.90 | Limestone Community High School District 310 / 22,599 |
| 332. | 39.90 | Forest Ridge School District 142 / 16,467 |
| 332. | 39.90 | Scott-Morgan Consolidated Unit School District 2 / 1,485 |
| 332. | 39.90 | North Boone Community Unit School District 200 / 8,564 |
| 337. | 40.00 | Naperville Community Unit District 203 / 96,394 |
| 337. | 40.00 | Township High School District 214 / 253,649 |
| 337. | 40.00 | Oak Grove School District 68 / 7,189 |
| 337. | 40.00 | Lockport Township High School District 205 / 76,156 |
| 337. | 40.00 | River Grove School District 85-5 / 7,881 |
| 337. | 40.00 | Miller Township Community Consolidated School District / 2,327 |
| 337. | 40.00 | Pearl City Community Unit School District 200 / 2,907 |
| 344. | 40.10 | Oblong Community Unit School District 4 / 3,764 |
| 344. | 40.10 | Breese School District 12 / 7,258 |
| 344. | 40.10 | Roxana Community Unit School District 1 / 12,372 |
| 344. | 40.10 | Rich Township High School District 227 / 70,027 |
| 344. | 40.10 | Community Unit School District 16 / 6,213 |
| 349. | 40.20 | Delavan Community Unit School District 703 / 2,593 |
| 349. | 40.20 | Prairie Central Community Unit School District 8 / 11,089 |
| 349. | 40.20 | Lexington Community Unit School District 7 / 3,063 |
| 349. | 40.20 | Wood River-Hartford Elementary School District 15 / 6,110 |
| 349. | 40.20 | Pinckneyville Community High School District 101 / 10,799 |
| 349. | 40.20 | Steward Elementary School District 220 / 717 |
| 355. | 40.30 | Community Consolidated School District 146 / 26,437 |
| 355. | 40.30 | Crete-Monee Community Unit School District 201-U / 33,368 |
| 355. | 40.30 | Lincoln Elementary School District 27 / 13,053 |
| 355. | 40.30 | Franklin Community Unit School District 1 / 2,004 |
| 355. | 40.30 | Lansing School District 158 / 22,864 |
| 355. | 40.30 | Illini Bluffs Community Unit School District 327 / 6,133 |
| 355. | 40.30 | Hillsboro Community Unit School District 3 / 14,713 |
| 355. | 40.30 | East Moline School District 37 / 26,610 |
| 363. | 40.40 | Will County School District 92 / 14,725 |
| 363. | 40.40 | Huntley Consolidated School District 158 / 43,647 |
| 363. | 40.40 | Newark Community High School District 18 / 3,879 |
| 363. | 40.40 | Galatia Community Unit School District 1 / 2,183 |
| 363. | 40.40 | Highland Community Unit School District 5 / 18,392 |
| 363. | 40.40 | Pontiac Community Consolidated School District 429 / 13,646 |
| 363. | 40.40 | Salem School District 111 / 8,695 |
| 363. | 40.40 | Jacksonville School District 117 / 28,184 |
| 371. | 40.50 | Mahomet-Seymour Community Unit School District 3 / 14,271 |
| 371. | 40.50 | Batavia Unit School District 101 / 31,774 |
| 371. | 40.50 | Johnston City Community Unit School District 1 / 7,321 |
| 374. | 40.60 | Byron Community Unit School District 226 / 7,955 |
| 374. | 40.60 | Marengo Community High School District 154 / 13,691 |
| 374. | 40.60 | Antioch Community High School District 117 / 44,953 |
| 374. | 40.60 | Community High School District 99 / 110,458 |
| 374. | 40.60 | Union School District 81 / 1,631 |
| 374. | 40.60 | St. Charles Community Unit School District 303 / 68,412 |
| 374. | 40.60 | Spring Valley Community Consolidated School District 99 / 6,000 |
| 381. | 40.70 | Bement Community Unit School District 5 / 2,521 |
| 381. | 40.70 | Alton Community Unit School District 11 / 48,514 |
| 381. | 40.70 | North Wamac School District 186 / 990 |
| 381. | 40.70 | Dwight Common School District 232 / 6,628 |
| 381. | 40.70 | Hartsburg-Emden Community Unit School District 21 / 1,063 |
| 381. | 40.70 | Eldorado Community Unit School District 4 / 7,286 |
| 381. | 40.70 | Rochester Community Unit School District 3A / 10,780 |
| 381. | 40.70 | Canton Union School District 66 / 17,530 |
| 381. | 40.70 | Atwood-Hammond Community Unit School District 39 / 2,444 |
| 381. | 40.70 | Hollis Consolidated School District 328 / 781 |
| 391. | 40.80 | A-C Central Community Unit School District 262 / 2,574 |
| 391. | 40.80 | Prairie Hill Community Consolidated School District 133 / 5,451 |
| 391. | 40.80 | Deer Creek-Mackinaw Community Unit School District 701 / 5,807 |
| 391. | 40.80 | Lake Park Community High School District 108 / 50,869 |
| 391. | 40.80 | Johnsburg Community Unit School District 12 / 12,447 |
| 391. | 40.80 | District 50 Schools / 7,496 |
| 391. | 40.80 | Dwight Township High School District 230 / 6,859 |
| 391. | 40.80 | Homewood School District 153 / 16,461 |
| 391. | 40.80 | Mount Vernon Township High School District 201 / 29,843 |
| 391. | 40.80 | Cary Community Consolidated School District 26 / 22,111 |
| 391. | 40.80 | Irvington County Community Unit School District 11 / 833 |
| 391. | 40.80 | Camp Point Community Unit School District 3 / 4,876 |
| 391. | 40.80 | Elmwood Park Community Unit School District 401 / 24,960 |
| 391. | 40.80 | Central A & M Community Unit School District 21 / 4,955 |
| 391. | 40.80 | Palestine Community Unit School District 3 / 2,464 |
| 391. | 40.80 | LaGrange School District 102 / 25,438 |
| 407. | 40.90 | Ridgeview Community Unit School District 19 / 3,350 |
| 407. | 40.90 | Pontiac Township High School District 90 / 16,267 |
| 407. | 40.90 | Brookwood School District 167 / 11,151 |
| 407. | 40.90 | Princeville Community Unit School District 326 / 4,206 |
| 407. | 40.90 | Germantown School District 60 / 1,714 |
| 407. | 40.90 | Skokie School District 69 / 18,561 |
| 407. | 40.90 | Geneva Community Unit School District 304 / 29,781 |
| 407. | 40.90 | Trico Community Unit School District 176 / 6,317 |
| 407. | 40.90 | Crab Orchard Community Unit School District 3 / 2,632 |
| 407. | 40.90 | Sterling Community Unit District 5 / 21,850 |
| 407. | 40.90 | Elverado Community Unit School District 196 / 2,981 |
| 407. | 40.90 | Des Plaines Community Consolidated School District 62 / 51,990 |
| 407. | 40.90 | Matteson Elementary School District 162 / 25,667 |
| 420. | 41.00 | Millstadt Consolidated Community School District 160 / 8,650 |
| 420. | 41.00 | Mount Zion Community Unit School District 3 / 12,245 |
| 420. | 41.00 | East Dubuque Community Unit School District 119 / 4,393 |
| 420. | 41.00 | Pleasant Hill Community Unit School District 3 / 1,977 |
| 420. | 41.00 | Hononegah Community High School District 207 / 32,556 |
| 420. | 41.00 | Gillespie Community Unit School District 7 / 7,873 |
| 420. | 41.00 | Warrensburg-Latham Community Unit District 11 / 6,160 |
| 420. | 41.00 | Hinsdale Community Consolidated School District 181 / 26,135 |
| 420. | 41.00 | Astoria Community Unit School District 1 / 2,118 |
| 420. | 41.00 | Galesburg Community Unit School District 205 / 34,850 |
| 430. | 41.10 | Beecher City Community Unit School District 20 / 2,571 |
| 430. | 41.10 | Norwood Elementary School District 63 / 3,616 |
| 430. | 41.10 | Vienna School District 55 / 4,547 |
| 430. | 41.10 | North Greene Unit School District 3 / 6,089 |
| 430. | 41.10 | Frankfort Community Unit School District 168 / 11,868 |
| 430. | 41.10 | Streator Township High School District 40 / 18,378 |
| 436. | 41.20 | Shiloh Community Unit School District 1 / 2,965 |
| 436. | 41.20 | Sandwich Community Unit School District 430 / 13,364 |
| 436. | 41.20 | Spoon River Valley Community Unit School District 4 / 2,505 |
| 436. | 41.20 | Red Bud Community Unit School District 132 / 7,965 |
| 436. | 41.20 | Country Club Hills School District 160 / 12,495 |
| 436. | 41.20 | Egyptian Community Unit School District 5 / 3,709 |
| 436. | 41.20 | Greenview Community Unit School District 200 / 1,692 |
| 436. | 41.20 | Carlinville Community Unit School District 1 / 9,633 |
| 444. | 41.30 | Fieldcrest Community Unit School District 6 / 6,842 |
| 444. | 41.30 | Greenfield Community Unit School District 10 / 3,094 |
| 444. | 41.30 | Gavin School District 37 / 7,729 |
| 444. | 41.30 | Shiloh Village School District 85 / 4,953 |
| 444. | 41.30 | Wolf Branch School District 113 / 7,789 |
| 444. | 41.30 | Morton Community Unit School District 709 / 18,942 |
| 450. | 41.40 | Bluford Community Consolidated School District 114 / 2,556 |
| 450. | 41.40 | Okaw Valley Community Unit School District 302 / 3,423 |
| 450. | 41.40 | Riverside Brookfield Township School District 208 / 29,204 |
| 450. | 41.40 | Du Quoin Community Unit School District 300 / 9,591 |
| 450. | 41.40 | Norris City-Omaha-Enfield Community Unit School District 3 / 4,586 |
| 450. | 41.40 | Cobden School Unit District 17 / 3,899 |
| 450. | 41.40 | Hillside School District 93 / 5,124 |
| 450. | 41.40 | Aptakisic-Tripp Community Consolidated School District / 19,061 |
| 458. | 41.50 | Donovan Community Unit School District 3 / 2,005 |
| 458. | 41.50 | Nashville Consolidated Community School District 49 / 5,710 |
| 458. | 41.50 | Vienna High School District 133 / 8,921 |
| 458. | 41.50 | Metamora Township High School District 122 / 16,360 |
| 458. | 41.50 | Opdyke-Belle Rive Community Consolidated School District 5 / 2,033 |
| 458. | 41.50 | Georgetown-Ridge Farm Consolidated Unit School District 4 / 6,788 |
| 464. | 41.60 | Lombard School District 44 / 35,594 |
| 464. | 41.60 | Sangamon Valley Community Unit School District 9 / 4,136 |
| 464. | 41.60 | Prairieview-Ogden Community Consolidated School District 197 / 2,416 |
| 464. | 41.60 | Fremont School District 79 / 20,516 |
| 464. | 41.60 | Edwards County Community Unit School District 1 / 5,879 |
| 464. | 41.60 | Panhandle Community Unit School District 2 / 2,280 |
| 464. | 41.60 | Manteno Community Unit School District 5 / 12,114 |
| 464. | 41.60 | Wilmington Community Unit School District 209U / 9,488 |
| 464. | 41.60 | Maercker School District 60 / 18,009 |
| 464. | 41.60 | Riverside School District 96 / 13,991 |
| 474. | 41.70 | Western Springs School District 101 / 10,072 |
| 474. | 41.70 | Field Community Consolidated School District 3 / 2,768 |
| 474. | 41.70 | Payson Community Unit School District 1 / 3,956 |
| 474. | 41.70 | Ohio Community Consolidated School District 17 / 736 |
| 474. | 41.70 | Salem Community High School District 600 / 15,043 |
| 479. | 41.80 | Hall High School District 502 / 9,128 |
| 479. | 41.80 | Ohio Community High School District 505 / 745 |
| 479. | 41.80 | Bureau Valley Community Unit School District 340 / 7,195 |
| 479. | 41.80 | Meridian Community Unit School District 101 / 3,649 |
| 479. | 41.80 | Lake Zurich Community Unit School District 95 / 31,709 |
| 479. | 41.80 | Mokena School District 159 / 17,456 |
| 479. | 41.80 | Jersey Community Unit School District 100 / 20,185 |
| 479. | 41.80 | Kenilworth School District 38 / 3,006 |
| 479. | 41.80 | Williamsville Community Unit School District 15 / 7,871 |
| 479. | 41.80 | Western Community Unit School District 12 / 3,670 |
| 479. | 41.80 | Nashville Community High School District 99 / 8,905 |
| 479. | 41.80 | Wesclin Community Unit School District 3 / 7,971 |
| 491. | 41.90 | DeLand-Weldon Community Unit School District 57 / 1,517 |
| 491. | 41.90 | Altamont Community Unit School District 10 / 4,959 |
| 491. | 41.90 | Olympia Community Unit School District 16 / 11,585 |
| 491. | 41.90 | Lyons Township High School District 204 / 69,702 |
| 491. | 41.90 | Joppa-Maple Grove Unit District 38 / 1,492 |
| 491. | 41.90 | Elementary School District 159 / 19,971 |
| 497. | 42.00 | Harrisburg Community Unit School District 3 / 12,763 |
| 497. | 42.00 | Sandoval Community Unit School District 501 / 2,560 |
| 497. | 42.00 | East Peoria School District 86 / 18,966 |
| 497. | 42.00 | Hinckley-Big Rock Community Unit School District 429 / 4,715 |
| 497. | 42.00 | Selmaville Community Consolidated School District 10 / 1,960 |
| 497. | 42.00 | Streator Elementary School District 44 / 16,545 |
| 497. | 42.00 | Pembroke Consolidated Community School District 259 / 1,971 |
| 497. | 42.00 | Jonesboro Community Consolidated School District 43 / 2,834 |
| 505. | 42.10 | Kinnikinnick Community Consolidated School District 131 / 13,664 |
| 505. | 42.10 | East Peoria Community High School District 309 / 26,544 |
| 505. | 42.10 | Flanagan-Cornell District 74 in Cornell / 869 |
| 505. | 42.10 | Southwestern Community Unit School District 9 / 8,981 |
| 505. | 42.10 | Cornell Community Consolidated School District 426 / 869 |
| 505. | 42.10 | LaSalle-Peru Township High School District 120 / 28,956 |
| 505. | 42.10 | Lemont-Bromberek Combined School District 113A / 25,222 |
| 505. | 42.10 | Adlai E. Stevenson High School District 125 / 61,391 |
| 505. | 42.10 | Rankin Community School District 98 / 3,228 |
| 505. | 42.10 | Columbia Community Unit School District 4 / 12,542 |
| 505. | 42.10 | Cowden-Herrick Community Unit School District 3A / 2,582 |
| 516. | 42.20 | Forrestville Valley Community Unit School District 221 / 5,366 |
| 516. | 42.20 | Morrisonville Community Unit School District 1 / 1,682 |
| 516. | 42.20 | Ottawa Elementary School District 141 / 19,628 |
| 516. | 42.20 | Farmington Central Community Unit School District 265 / 7,945 |
| 516. | 42.20 | Harmony Emge School District 175 / 10,158 |
| 516. | 42.20 | Gibson City-Melvin-Sibley Community Unit School District 5 / 5,896 |
| 516. | 42.20 | Lemont Township High School District 210 / 25,611 |
| 516. | 42.20 | Earlville Community Unit School District 9 / 2,717 |
| 516. | 42.20 | Iuka Community Consolidated School District 7 / 1,930 |
| 516. | 42.20 | Cherry School District 92 / 564 |
| 516. | 42.20 | Clinton Community Unit School District 15 / 12,177 |
| 516. | 42.20 | Dixon Unit School District 170 / 22,133 |
| 528. | 42.30 | Smithton Community Consolidated School District 130 / 4,559 |
| 528. | 42.30 | Elwood Community Consolidated School District 203 / 3,787 |
| 528. | 42.30 | Steeleville Community Unit School District 138 / 3,126 |
| 528. | 42.30 | Waverly Community Unit School District 6 / 1,885 |
| 528. | 42.30 | East Prairie School District 73 / 4,698 |
| 528. | 42.30 | Pikeland Community Unit School District 10 / 8,684 |
| 528. | 42.30 | Jasper Community Consolidated School District 17 / 1,457 |
| 528. | 42.30 | Kildeer Countryside Community Consolidated School District 96 / 23,374 |
| 528. | 42.30 | Monroe School District 70 / 3,195 |
| 537. | 42.40 | Murphysboro Community Unit School District 186 / 15,544 |
| 537. | 42.40 | Benton Community Consolidated School District 47 / 10,031 |
| 537. | 42.40 | Monticello Community Unit School District 25 / 8,965 |
| 537. | 42.40 | River Forest School District 90 / 11,211 |
| 537. | 42.40 | Libertyville Community High School District 128 / 50,244 |
| 537. | 42.40 | Annawan Community Unit School District 226 / 2,171 |
| 543. | 42.50 | Oak Lawn-Hometown School District 123 / 35,152 |
| 543. | 42.50 | Ottawa Township High School District 140 / 31,237 |
| 543. | 42.50 | Peotone Community Unit School District 207U / 10,749 |
| 543. | 42.50 | West Richland Community Unit School District 2 / 2,010 |
| 543. | 42.50 | Lockport School District 91 / 6,640 |
| 543. | 42.50 | Maroa-Forsyth Community Unit School District 2 / 6,417 |
| 543. | 42.50 | Flora Community Unit School District 35 / 8,030 |
| 543. | 42.50 | Erie Community Unit School District 1 / 3,347 |
| 543. | 42.50 | Bismarck-Henning Consolidated Unit School District / 5,065 |
| 543. | 42.50 | Argenta-Oreana Community Unit School District 1 / 3,854 |
| 543. | 42.50 | Morton Grove School District 70 / 9,241 |
| 554. | 42.60 | Windsor Community Unit School District 1 / 2,889 |
| 554. | 42.60 | Cambridge Community Unit School District 227 / 2,861 |
| 554. | 42.60 | Glen Ellyn Community Consolidated School District 89 / 21,874 |
| 554. | 42.60 | Centralia School District 135 / 13,320 |
| 554. | 42.60 | Newark Community Consolidated School District 66 / 2,809 |
| 554. | 42.60 | Frankfort Community Consolidated School District 157C / 17,716 |
| 554. | 42.60 | Winnetka School District 36 / 12,008 |
| 554. | 42.60 | Edinburg Community Unit School District 4 / 1,949 |
| 554. | 42.60 | Zeigler-Royalton Community Unit School District 188 / 4,186 |
| 563. | 42.70 | Winthrop Harbor School District 1 / 6,682 |
| 563. | 42.70 | Homewood-Flossmoor Community High School District 233 / 38,929 |
| 563. | 42.70 | East Richland Community Unit School District 1 / 14,132 |
| 563. | 42.70 | Christopher Community Unit School District 99 / 5,139 |
| 567. | 42.80 | Meridian Community Unit School District 15 / 6,569 |
| 567. | 42.80 | V.I.T. Community Unit School District 2 / 2,461 |
| 567. | 42.80 | Marion Community Unit School District 2 / 27,844 |
| 567. | 42.80 | Lisle Community Unit School District 202 / 13,791 |
| 567. | 42.80 | Lake Bluff Elementary School District 65 / 8,103 |
| 567. | 42.80 | Geff Community Consolidated School District 14 / 939 |
| 573. | 42.90 | Glenview Community Consolidated School District 34 / 41,222 |
| 573. | 42.90 | Putnam County Community Unit School District 535 / 5,514 |
| 573. | 42.90 | Oakwood Community Unit School District 76 / 6,158 |
| 573. | 42.90 | Robinson Community Unit School District 2 / 11,988 |
| 573. | 42.90 | Gifford Community Consolidated School District 188 / 1,795 |
| 573. | 42.90 | Stewardson-Strasburg Community Unit District 5A / 2,404 |
| 573. | 42.90 | Hutsonville Community Unit School District 1 / 2,100 |
| 573. | 42.90 | Coulterville Unit School District 1 / 1,711 |
| 573. | 42.90 | Potomac Community Unit School District 10 / 1,179 |
| 582. | 43.00 | Skokie School District 73-5 / 9,719 |
| 582. | 43.00 | Marshall Community Unit School District 2C / 8,115 |
| 582. | 43.00 | Central City School District 133 / 2,019 |
| 582. | 43.00 | Pleasant Plains Community Unit School District 8 / 8,049 |
| 582. | 43.00 | Odell Community Consolidated School District 435 / 1,308 |
| 582. | 43.00 | Downers Grove Grade School District 58 / 51,933 |
| 582. | 43.00 | Reed Custer Community Unit School District 255U / 9,343 |
| 582. | 43.00 | Taylorville Community Unit School District 3 / 18,760 |
| 582. | 43.00 | Rock Falls Township High School District 301 / 14,656 |
| 582. | 43.00 | New Simpson Hill Consolidated District 32 / 2,765 |
| 592. | 43.10 | Consolidated High School District 230 / 157,389 |
| 592. | 43.10 | Itasca School District 10 / 9,040 |
| 592. | 43.10 | Athens Community Unit School District 213 / 5,000 |
| 592. | 43.10 | Geneseo Community Unit School District 228 / 15,989 |
| 592. | 43.10 | Winnebago Community Unit School District 323 / 8,216 |
| 592. | 43.10 | Thornton School District 154 / 3,250 |
| 592. | 43.10 | Benjamin School District 25 / 6,555 |
| 592. | 43.10 | Hamilton County Community Unit School District 10 / 7,794 |
| 600. | 43.20 | Jasper County Community Unit School District 1 / 9,430 |
| 600. | 43.20 | New Athens Community Unit School District 60 / 3,561 |
| 600. | 43.20 | Benton Consolidated High School District 103 / 12,420 |
| 600. | 43.20 | Hoover-Schrum Memorial School District 157 / 8,237 |
| 600. | 43.20 | Waterloo Community Unit School District 5 / 17,772 |
| 600. | 43.20 | Centralia High School District 200 / 21,153 |
| 600. | 43.20 | Komarek School District 94 / 4,969 |
| 607. | 43.30 | Prophetstown-Lyndon-Tampico Community Unit School District 3 / 5,585 |
| 607. | 43.30 | Mount Pulaski Community Unit District 23 / 3,055 |
| 609. | 43.40 | Pinckneyville School District 50 / 6,531 |
| 609. | 43.40 | Casey-Westfield Community Unit School District 4C / 5,922 |
| 609. | 43.40 | Roselle School District 12 / 6,654 |
| 609. | 43.40 | East Alton-Wood River Community High School District 14 / 13,730 |
| 609. | 43.40 | Germantown Hills School District 69 / 6,329 |
| 609. | 43.40 | Arlington Heights School District 25 / 51,105 |
| 609. | 43.40 | Hinsdale Township High School District 86 / 75,716 |
| 616. | 43.50 | Maine Township High School District 207 / 146,026 |
| 616. | 43.50 | Flossmoor School District 161 / 21,927 |
| 616. | 43.50 | Massac Unit School District 1 / 13,609 |
| 619. | 43.60 | Golf Elementary School District 67 / 6,857 |
| 619. | 43.60 | Amboy Community Unit School District 272 / 5,036 |
| 619. | 43.60 | North Clay Community Unit School District 25 / 3,746 |
| 619. | 43.60 | Liberty Community Unit School District 2 / 3,201 |
| 619. | 43.60 | Pana Community Unit School District 8 / 8,935 |
| 619. | 43.60 | Nippersink School District 2 / 11,648 |
| 619. | 43.60 | Richmond-Burton Community High School District 157 / 11,648 |
| 619. | 43.60 | Warsaw Community Unit School District 316 / 2,539 |
| 619. | 43.60 | Rooks Creek Community Consolidated School District 425 / 625 |
| 619. | 43.60 | Nokomis Community Unit School District 22 / 3,925 |
| 629. | 43.70 | Barrington Community Unit School District 220 / 45,392 |
| 629. | 43.70 | Township High School District 113 / 58,572 |
| 629. | 43.70 | Stockton Community Unit School District 206 / 3,877 |
| 629. | 43.70 | Crescent Iroquois Community Unit School District 249 / 1,208 |
| 633. | 43.80 | Milford Community Consolidated School District 280 / 3,975 |
| 633. | 43.80 | Milford Township High School District 233 / 3,975 |
| 633. | 43.80 | Lincolnshire-Prairieview School District 103 / 13,006 |
| 633. | 43.80 | Ladd Community Consolidated School District 94 / 1,817 |
| 633. | 43.80 | Sesser-Valier Community Unit School District 196 / 4,212 |
| 633. | 43.80 | River Trails School District 26 / 15,589 |
| 633. | 43.80 | Westmont Community Unit School District 201 / 12,454 |
| 640. | 43.90 | Beecher Community Unit School District 200U / 6,985 |
| 640. | 43.90 | Fairfield Community High School District 225 / 10,034 |
| 640. | 43.90 | North Wayne Community Unit School District 200 / 2,556 |
| 640. | 43.90 | North Shore School District 112 / 35,827 |
| 640. | 43.90 | Wilmette School District 39 / 26,102 |
| 640. | 43.90 | Iroquois West Community Unit School District 10 / 4,773 |
| 640. | 43.90 | High Mount School District 116 / 4,027 |
| 640. | 43.90 | Darien School District 61 / 16,179 |
| 640. | 43.90 | East Maine School District 63 / 46,677 |
| 649. | 44.00 | Southeastern Community Unit School District 337 / 3,067 |
| 649. | 44.00 | Spring Lake Community Consolidated School District 606 / 639 |
| 649. | 44.00 | Illinois Valley Central Unit School District 321 / 13,507 |
| 649. | 44.00 | Momence Community Unit School District 1 / 7,218 |
| 649. | 44.00 | Havana Community Unit School District 126 / 6,545 |
| 649. | 44.00 | Montmorency Community Consolidated School District 145 / 2,745 |
| 649. | 44.00 | Glencoe School District 35 / 8,696 |
| 649. | 44.00 | Fairfield Public School District 112 / 6,126 |
| 657. | 44.10 | Tamaroa School District 5 / 719 |
| 657. | 44.10 | Oakdale Community Consolidated School District 1 / 714 |
| 657. | 44.10 | East Alton School District 13 / 7,620 |
| 657. | 44.10 | Dallas Elementary School District 327 / 2,006 |
| 657. | 44.10 | Brimfield Community Unit School District 309 / 3,862 |
| 657. | 44.10 | Heritage Community Unit School District 8 / 2,978 |
| 657. | 44.10 | Winfield School District 34 / 4,426 |
| 657. | 44.10 | Ewing Northern Community Consolidated District 115 / 1,710 |
| 665. | 44.20 | Name N/A / 5,592 |
| 665. | 44.20 | Kell Consolidated School District 2 / 993 |
| 665. | 44.20 | Grant Community Consolidated School District 110 / 7,600 |
| 665. | 44.20 | La Moille Community Unit School District 303 / 1,794 |
| 665. | 44.20 | Ashley Community Consolidated School District 15 / 1,836 |
| 665. | 44.20 | Skokie-Fairview School District 72 / 6,315 |
| 665. | 44.20 | Oak Grove School District 68 / 3,692 |
| 665. | 44.20 | Chadwick-Milledgeville Community Unit School District 399 / 2,956 |
| 665. | 44.20 | Mount Prospect School District 57 / 20,638 |
| 665. | 44.20 | Sherrard Community Unit School District 200 / 9,755 |
| 665. | 44.20 | River Bend Community Unit District 2 / 6,722 |
| 665. | 44.20 | New Trier Township High School District 203 / 60,357 |
| 665. | 44.20 | Orland School District 135 / 56,257 |
| 678. | 44.30 | Freeburg Community High School District 77 / 13,146 |
| 678. | 44.30 | Cass School District 63 / 8,304 |
| 678. | 44.30 | Leland Community Unit School District 1 / 1,738 |
| 678. | 44.30 | Kings Consolidated School District 144 / 949 |
| 678. | 44.30 | Somonauk Community Unit School District 432 / 5,089 |
| 678. | 44.30 | Warren Community Unit School District 205 / 2,969 |
| 684. | 44.40 | Wabash Community Unit School District 348 / 10,610 |
| 684. | 44.40 | Libertyville School District 70 / 18,534 |
| 684. | 44.40 | Elmwood Community Unit School District 322 / 3,872 |
| 684. | 44.40 | Calhoun Community Unit School District 40 / 3,447 |
| 684. | 44.40 | La Harpe Community School District 347 / 2,240 |
| 684. | 44.40 | Herscher Community Unit School District 2 / 10,651 |
| 690. | 44.50 | Niles Township Community High School District 219 / 96,278 |
| 690. | 44.50 | Fairmont School District 89 / 3,876 |
| 690. | 44.50 | Deerfield School District 109 / 20,592 |
| 693. | 44.60 | St. Libory Consolidated School District 30 / 869 |
| 693. | 44.60 | Eswood Community Consolidated District 269 / 743 |
| 693. | 44.60 | Park Ridge Consolidated Community School District 64 / 40,764 |
| 693. | 44.60 | Gallatin Community Unit School District 7 / 5,212 |
| 693. | 44.60 | Woodlawn Community High School District 205 / 3,230 |
| 698. | 44.70 | Winchester Community Unit School District 1 / 3,769 |
| 698. | 44.70 | Tonica Community Consolidated School District 79 / 1,393 |
| 698. | 44.70 | Litchfield Community Unit School District 12 / 8,873 |
| 698. | 44.70 | Dakota Community Unit School District 201 / 4,909 |
| 698. | 44.70 | Hamilton Community Consolidated School District 328 / 3,870 |
| 698. | 44.70 | Peru Elementary School District 124 / 10,353 |
| 704. | 44.80 | Waltham Community Consolidated School District 185 / 2,429 |
| 704. | 44.80 | Rome Community Consolidated School District 2 / 2,519 |
| 704. | 44.80 | Freeport School District 145 / 30,082 |
| 704. | 44.80 | Bunker Hill Community Unit School District 8 / 4,468 |
| 708. | 44.90 | Anna Jonesboro Community High School District 81 / 10,764 |
| 708. | 44.90 | Paxton-Buckley-Loda Community Unit School District 10 / 8,485 |
| 710. | 45.00 | Morrison Community Unit School District 6 / 6,664 |
| 710. | 45.00 | Midwest Central Community Unit School District 191 / 6,175 |
| 710. | 45.00 | West Washington County Community Unit District 10 / 4,012 |
| 713. | 45.10 | Orion Community Unit School District 223 / 6,078 |
| 713. | 45.10 | Mercer County School District 404 / 8,463 |
| 713. | 45.10 | St. Elmo Community Unit School District 202 / 2,784 |
| 713. | 45.10 | Illini West High School District 307 / 8,403 |
| 713. | 45.10 | Saunemin Community Consolidated School District 438 / 908 |
| 713. | 45.10 | Porta Community Unit School District 202 / 7,234 |
| 719. | 45.20 | Jamaica Community Unit School District 12 / 2,311 |
| 719. | 45.20 | Northbrook School District 28 / 14,644 |
| 719. | 45.20 | Fox Lake Grade School District 114 / 8,628 |
| 719. | 45.20 | Northfield Township High School District 225 / 86,734 |
| 719. | 45.20 | Woodlawn Community Consolidated School District 4 / 2,771 |
| 719. | 45.20 | Hoopeston Area Community Unit School District 11 / 7,178 |
| 719. | 45.20 | Community Unit School District 4 / 3,814 |
| 726. | 45.30 | Prairie Grove Community School District 46 / 7,259 |
| 726. | 45.30 | Emmons School District 33 / 3,616 |
| 726. | 45.30 | Staunton Community Unit School District 6 / 8,400 |
| 726. | 45.30 | Lawrence County Community Unit District 20 / 7,744 |
| 726. | 45.30 | Meredosia-Chambersburg Community Unit School District 11 / 1,669 |
| 731. | 45.40 | Williamsfield Community Unit School District 210 / 1,910 |
| 731. | 45.40 | Anna Community Consolidated School District 37 / 6,410 |
| 731. | 45.40 | Galva Community Unit School District 224 / 3,413 |
| 731. | 45.40 | Schuyler-Industry Community Unit School District 5 / 7,745 |
| 731. | 45.40 | New Hope Community Consolidated School District 6 / 1,512 |
| 736. | 45.50 | Stark County Community Unit School District 100 / 4,688 |
| 736. | 45.50 | Mulberry Grove Community Unit School District 1 / 2,499 |
| 736. | 45.50 | Lee Center Community Unit School District 271 / 1,617 |
| 739. | 45.60 | Alwood Community Unit School District 225 / 2,643 |
| 739. | 45.60 | Knoxville Community Unit School District 202 / 6,260 |
| 739. | 45.60 | Allen Township Community Consolidated School District 65 / 820 |
| 739. | 45.60 | Cypress School District 64 / 888 |
| 739. | 45.60 | Clay City Community Unit District 10 / 2,505 |
| 739. | 45.60 | McClellan Community Consolidated School District 12 / 860 |
| 745. | 45.70 | Martinsville Community Unit School District 3C / 2,335 |
| 745. | 45.70 | Prospect Heights School District 23 / 18,121 |
| 745. | 45.70 | Blue Ridge Community Unit School District 18 / 5,126 |
| 745. | 45.70 | Northwestern Community Unit School District 2 / 2,079 |
| 749. | 45.80 | Armstrong Township High School District 225 / 1,455 |
| 749. | 45.80 | Carmi-White County Community Unit School District 5 / 9,150 |
| 749. | 45.80 | Carrier Mills-Stonefort Community Unit School District / 2,962 |
| 749. | 45.80 | Polo Community Unit School District 222 / 3,918 |
| 749. | 45.80 | Cissna Park Community Unit School District 6 / 1,807 |
| 749. | 45.80 | Pleasantdale School District 107 / 8,287 |
| 755. | 45.90 | Norridge School District 80 / 12,089 |
| 755. | 45.90 | Lena-Winslow Community Unit School District 202 / 4,906 |
| 755. | 45.90 | Lostant Community Unit School District 425 / 748 |
| 758. | 46.00 | Freeburg Community Consolidated School District 70 / 7,714 |
| 758. | 46.00 | Westchester School District 92-5 / 16,049 |
| 758. | 46.00 | Dodds Community Consolidated School District 7 / 1,374 |
| 758. | 46.00 | Sparta Community Unit School District 140 / 8,407 |
| 758. | 46.00 | Ridgewood Community High School District 234 / 19,122 |
| 763. | 46.10 | Carthage Elementary School District 317 / 4,157 |
| 763. | 46.10 | Dimmick Community Consolidated School District 175 / 1,173 |
| 763. | 46.10 | Lake Forest Community High School District 115 / 27,017 |
| 763. | 46.10 | Edgar County Community Unit District 6 / 2,415 |
| 767. | 46.20 | Raccoon Consolidated School District 1 / 2,489 |
| 767. | 46.20 | Robein School District 85 / 1,990 |
| 767. | 46.20 | Villa Grove Community Unit School District 302 / 3,973 |
| 770. | 46.30 | Triopia Community Unit School District 27 / 2,373 |
| 770. | 46.30 | Ashton Community Unit School District 275 / 3,787 |
| 772. | 46.40 | Nettle Creek Community Consolidated School District 24C / 851 |
| 772. | 46.40 | Limestone Walters Community Consolidated School District 316 / 2,067 |
| 774. | 46.50 | United Community School District 304 / 5,873 |
| 774. | 46.50 | Mount Olive Community Unit School District 5 / 3,362 |
| 774. | 46.50 | Century Community Unit School District 100 / 2,442 |
| 774. | 46.50 | Woodland Community Unit School District 5 / 2,753 |
| 774. | 46.50 | Riverview Consolidated Community School District 2 / 2,986 |
| 779. | 46.60 | Skokie School District 68 / 20,236 |
| 779. | 46.60 | West Carroll Community Unit School District 314 / 8,557 |
| 779. | 46.60 | West Prairie Community Unit School District 103 / 4,809 |
| 779. | 46.60 | Goreville Community Unit School District 1 / 3,882 |
| 783. | 46.70 | Grand Prairie Community Consolidated School District 6 / 806 |
| 783. | 46.70 | Neoga Community Unit School District 3 / 5,140 |
| 783. | 46.70 | Lake Forest School District 67 / 18,592 |
| 783. | 46.70 | Lincolnwood School District 74 / 12,653 |
| 787. | 46.80 | Shawnee Community Unit School District 84 / 2,425 |
| 787. | 46.80 | Kansas Community Unit School District 3 / 1,565 |
| 789. | 46.90 | Hardin County Community Unit School District 1 / 4,226 |
| 789. | 46.90 | Hampton School District 29 / 2,357 |
| 789. | 46.90 | Sullivan Community Unit School District 300 / 7,387 |
| 792. | 47.00 | Willow Springs School District 108 / 3,450 |
| 792. | 47.00 | Riverdale Community Unit School District 100 / 6,402 |
| 792. | 47.00 | Princeton High School District 500 / 12,376 |
| 792. | 47.00 | Midland Community Unit School District 7 / 5,510 |
| 796. | 47.10 | Shelbyville Community Unit School District 4 / 7,911 |
| 796. | 47.10 | Illini Central Community Unit School District 189 / 4,718 |
| 798. | 47.20 | Oregon Community Unit School District 220 / 10,684 |
| 798. | 47.20 | Dalzell School District 98 / 740 |
| 798. | 47.20 | Union Ridge School District 86 / 6,529 |
| 798. | 47.20 | Lick Creek Community Consolidated School District 16 / 1,520 |
| 798. | 47.20 | Wallace Community Consolidated School District 195 / 2,713 |
| 803. | 47.30 | Rondout School District 72 / 1,450 |
| 803. | 47.30 | Name N/A / 3,033 |
| 803. | 47.30 | Iroquois County Community Unit School District 9 / 7,118 |
| 803. | 47.30 | Lewistown Community Unit School District 97 / 4,892 |
| 807. | 47.40 | South Holland School District 150 / 10,183 |
| 808. | 47.50 | Wethersfield Community Unit School District 230 / 3,974 |
| 808. | 47.50 | Center Cass School District 66 / 11,561 |
| 808. | 47.50 | Griggsville-Perry Community Unit School District 4 / 2,079 |
| 811. | 47.60 | Roanoke-Benson Community Unit School District 60 / 3,332 |
| 811. | 47.60 | Armstrong-Ellis Consolidated School District 61 / 956 |
| 811. | 47.60 | Lindop School District 92 / 4,011 |
| 811. | 47.60 | Brownstown Community Unit School District 201 / 1,961 |
| 811. | 47.60 | Princeton Elementary School District 115 / 11,523 |
| 811. | 47.60 | Pennoyer School District 79 / 5,894 |
| 817. | 47.70 | Bloomingdale School District 13 / 13,521 |
| 817. | 47.70 | Carrollton Community Unit School District 1 / 4,147 |
| 817. | 47.70 | Rockridge Community Unit School District 300 / 7,224 |
| 820. | 47.80 | Summersville School District 79 / 1,880 |
| 821. | 48.00 | Alden-Hebron School District 19 / 2,572 |
| 821. | 48.00 | Pope County Community Unit School District 1 / 4,362 |
| 823. | 48.10 | Gower School District 62 / 9,602 |
| 823. | 48.10 | Avoca School District 37 / 6,435 |
| 825. | 48.20 | Cerro Gordo Community Unit School District 100 / 2,903 |
| 825. | 48.20 | Salt Creek School District 48 / 8,237 |
| 827. | 48.30 | West Northfield School District 31 / 9,898 |
| 827. | 48.30 | Northbrook Elementary School District 27 / 10,714 |
| 829. | 48.40 | Tri-City Community Unit School District 1 / 3,191 |
| 829. | 48.40 | Flanagan-Cornell District 74 / 1,727 |
| 831. | 48.50 | Brussels Community Unit School District 42 / 1,250 |
| 831. | 48.50 | Grayville Community Unit School District 1 / 1,960 |
| 833. | 48.70 | Riley Community Consolidated School District 18 / 3,641 |
| 834. | 48.80 | Eastland Community Unit School District 308 / 4,291 |
| 834. | 48.80 | Name N/A / 1,596 |
| 836. | 48.90 | Durand Community Unit School District 322 / 3,672 |
| 837. | 49.20 | West Central Community Unit School District 235 / 6,052 |
| 837. | 49.20 | Henry-Senachwine Consolidated Unit School District 5 / 3,383 |
| 837. | 49.20 | Deer Park Community Consolidated School District 82 / 718 |
| 837. | 49.20 | New Holland-Middletown Elementary School District 88 / 915 |
| 841. | 49.30 | Fulton County Community Unit School District 3 / 3,605 |
| 842. | 49.50 | Venice Community Unit School District 3 / 688 |
| 843. | 49.60 | Richland School District 88A / 9,948 |
| 843. | 49.60 | Virginia Community Unit School District 64 / 2,023 |
| 845. | 49.70 | Palos Heights School District 128 / 9,655 |
| 845. | 49.70 | Nauvoo-Colusa Community Unit School District 325 / 2,441 |
| 847. | 50.00 | Akin Community Consolidated School District 91 / 775 |
| 848. | 50.10 | Sunset Ridge School District 29 / 4,110 |
| 848. | 50.10 | Willow Grove School District 46 / 2,239 |
| 850. | 50.30 | Northbrook/Glenview School District 30 / 10,256 |
| 850. | 50.30 | Paris Community Unit School District 4 / 3,997 |
| 852. | 51.00 | Galena Unit School District 120 / 5,928 |
| 853. | 51.50 | Palos Community Consolidated School District 118 / 23,432 |
| 854. | 51.60 | Rutland Community Consolidated School District 230 / 785 |
| 854. | 51.60 | Oakland Community Unit School District 5 / 1,856 |
| 856. | 51.80 | LaGrange Highlands School District 106 / 9,718 |
| 857. | 52.10 | Shirland Community Consolidated School District 134 / 1,496 |
| 858. | 52.70 | Grass Lake School District 36 / 2,565 |
| 859. | 53.40 | Niles Elementary School District 71 / 7,998 |
| 860. | 54.30 | Flanagan-Cornell District 74 in Pontiac / 30 |
| 861. | 54.50 | Scales Mound Community Unit School District 211 / 1,624 |
| 862. | 56.70 | Butler School District 53 / 4,839 |
| 863. | 57.80 | River Ridge Community Unit School District 210 / 3,566 |
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.
