| Rank | Median Age ▲ | School District / Population |
| 1. | 23.30 | Knob Noster R-VIII School District / 9,263 |
| 2. | 23.60 | Waynesville R-VI Schools / 29,049 |
| 3. | 24.20 | Maryville R-II Schools / 14,388 |
| 3. | 24.20 | Kirksville R-III School District / 21,415 |
| 5. | 24.60 | Wellston School District / 2,555 |
| 6. | 24.90 | Warrensburg R-VI School District / 25,379 |
| 7. | 26.70 | Tri-County R-VII School District / 2,023 |
| 8. | 27.60 | Columbia Public Schools / 128,135 |
| 9. | 29.00 | Seymour R-II School District / 6,303 |
| 10. | 29.30 | Clayton School District / 17,415 |
| 11. | 29.50 | Bolivar R-I School District / 15,760 |
| 11. | 29.50 | Jennings School District / 17,226 |
| 11. | 29.50 | Moniteau County R-V School District / 978 |
| 14. | 29.70 | Jefferson C-123 School District / 902 |
| 15. | 30.20 | Canton School District / 4,762 |
| 15. | 30.20 | Riverview Gardens School District / 37,564 |
| 17. | 30.30 | Central R-III School District / 10,808 |
| 18. | 30.80 | Pettis County R-XII School District / 1,159 |
| 18. | 30.80 | Clarksburg C-2 School District / 851 |
| 20. | 30.90 | Rolla 31 School District / 29,068 |
| 20. | 30.90 | La Monte R-IV School District / 1,822 |
| 22. | 31.60 | Webb City R-VII School District / 20,433 |
| 22. | 31.60 | Caruthersville School District / 5,992 |
| 22. | 31.60 | Scott County R-IV School District / 6,102 |
| 25. | 31.70 | Avilla R-XIII School District / 1,440 |
| 26. | 31.90 | Cape Girardeau 63 School District / 37,508 |
| 27. | 32.20 | Norwood R-I School District / 2,273 |
| 28. | 32.30 | Cole County R-II School District / 6,384 |
| 28. | 32.30 | Blackwater R-II School District / 1,008 |
| 30. | 32.60 | Hickman Mills C-1 School District / 52,376 |
| 31. | 32.70 | Grain Valley R-V School District / 13,488 |
| 32. | 32.90 | Pettis County R-V School District / 2,180 |
| 32. | 32.90 | Atlanta C-3 Schools / 1,405 |
| 32. | 32.90 | Willard School District / 22,394 |
| 35. | 33.10 | Liberty Schools / 48,871 |
| 35. | 33.10 | Troy R-III School District / 31,887 |
| 35. | 33.10 | Pleasant Hope R-VI School District / 5,024 |
| 38. | 33.20 | Monett R-I School District / 12,572 |
| 39. | 33.30 | Normandy School District / 34,974 |
| 39. | 33.30 | Fulton School District / 19,082 |
| 41. | 33.40 | Fort Osage R-I School District / 26,071 |
| 41. | 33.40 | Ozark R-VI School District / 28,542 |
| 43. | 33.60 | Newtown-Harris R-III School District / 557 |
| 43. | 33.60 | Hayti R-II School District / 3,876 |
| 45. | 33.70 | Wentzville R-IV School District / 60,581 |
| 45. | 33.70 | Windsor C-1 School District / 18,445 |
| 47. | 33.80 | McDonald County R-I School District / 18,014 |
| 47. | 33.80 | Clarkton C-4 School District / 2,140 |
| 49. | 33.90 | East Prairie R-II School District / 5,627 |
| 50. | 34.00 | Winona R-III School District / 2,857 |
| 51. | 34.10 | Richwoods R-VII School District / 1,412 |
| 52. | 34.20 | Cooter R-IV School District / 749 |
| 53. | 34.30 | Cole County R-I School District / 4,356 |
| 54. | 34.40 | Strain-Japan R-XVI School District / 1,030 |
| 55. | 34.50 | Springfield School District / 197,083 |
| 55. | 34.50 | Neosho R-5 School District / 25,700 |
| 55. | 34.50 | St. Louis City School District / 355,078 |
| 58. | 34.60 | Gorin R-III School District / 439 |
| 59. | 34.70 | Belton 124 School District / 27,349 |
| 60. | 34.80 | Carl Junction R-I School District / 14,451 |
| 60. | 34.80 | Marshall School District / 14,271 |
| 60. | 34.80 | Northeast Nodaway County R-V School District / 1,619 |
| 60. | 34.80 | Hardin-Central C-2 School District / 983 |
| 60. | 34.80 | Sheldon R-VIII School District / 1,275 |
| 65. | 34.90 | Tina-Avalon R-II School District / 1,152 |
| 65. | 34.90 | Kansas City School District / 238,276 |
| 67. | 35.00 | Wheaton R-III School District / 2,366 |
| 67. | 35.00 | Kennett 39 School District / 10,726 |
| 69. | 35.10 | Platte County R-III School District / 18,819 |
| 70. | 35.20 | Sturgeon R-V School District / 3,551 |
| 70. | 35.20 | Oak Grove R-VI School District / 10,014 |
| 72. | 35.30 | Nixa School District / 26,011 |
| 72. | 35.30 | Richards R-V School District / 3,358 |
| 74. | 35.40 | High Point R-III School District / 722 |
| 75. | 35.50 | Fort Zumwalt R-II School District / 106,678 |
| 75. | 35.50 | Boonville School District / 11,672 |
| 75. | 35.50 | Crawford County R-I School District / 6,974 |
| 78. | 35.60 | Potosi R-III School District / 12,924 |
| 78. | 35.60 | Lee's Summit R-7 School District / 82,119 |
| 78. | 35.60 | Mount Vernon R-V School District / 9,933 |
| 81. | 35.70 | Oran R-III School District / 2,252 |
| 82. | 35.80 | Pike County R-III School District / 3,433 |
| 82. | 35.80 | St. Clair R-XIII School District / 12,162 |
| 82. | 35.80 | Republic School District / 20,069 |
| 82. | 35.80 | Ritenour School District / 43,393 |
| 86. | 35.90 | Union R-XI School District / 18,903 |
| 86. | 35.90 | Dunklin R-V School District / 9,470 |
| 86. | 35.90 | Wellington-Napoleon R-IX School District / 2,554 |
| 86. | 35.90 | Kingsville R-I School District / 2,132 |
| 90. | 36.00 | Galena R-II School District / 3,065 |
| 90. | 36.00 | Carthage R-IX School District / 22,866 |
| 90. | 36.00 | Halfway R-III School District / 2,399 |
| 93. | 36.10 | Wright City R-II School District / 9,580 |
| 93. | 36.10 | Exeter R-VI School District / 2,181 |
| 93. | 36.10 | Kingston K-14 School District / 5,287 |
| 96. | 36.20 | Festus R-6 School District / 17,058 |
| 96. | 36.20 | Calhoun R-VIII School District / 1,024 |
| 98. | 36.30 | Joplin R-VIII School District / 60,082 |
| 98. | 36.30 | Fox C-6 School District / 66,958 |
| 98. | 36.30 | Scott City R-I School District / 5,453 |
| 101. | 36.40 | Skyline R-II School District / 1,174 |
| 101. | 36.40 | St. Joseph School District / 79,802 |
| 101. | 36.40 | Bloomfield School District / 4,554 |
| 101. | 36.40 | Blue Springs R-IV School District / 77,407 |
| 101. | 36.40 | Holcomb R-III School District / 2,490 |
| 106. | 36.50 | La Plata R-II School District / 2,518 |
| 106. | 36.50 | Fayette R-III School District / 4,910 |
| 106. | 36.50 | Liberal R-II School District / 3,280 |
| 106. | 36.50 | Sedalia 200 School District / 29,026 |
| 110. | 36.60 | Moniteau County R-I School District / 6,866 |
| 110. | 36.60 | University City School District / 37,175 |
| 110. | 36.60 | Moberly School District / 16,210 |
| 110. | 36.60 | Raymore-Peculiar R-II School District / 30,731 |
| 110. | 36.60 | Kirbyville R-VI School District / 2,392 |
| 110. | 36.60 | Lebanon School District / 24,836 |
| 110. | 36.60 | Iberia R-V School District / 5,018 |
| 117. | 36.70 | Park Hill School District / 61,740 |
| 117. | 36.70 | Ferguson-Florissant School District / 71,078 |
| 119. | 36.80 | North Kansas City School District / 123,250 |
| 119. | 36.80 | Cooper County C-4 School District / 974 |
| 119. | 36.80 | New Bloomfield R-III School District / 3,978 |
| 119. | 36.80 | Maplewood-Richmond Heights School District / 15,271 |
| 123. | 36.90 | Pleasant Hill R-III School District / 10,217 |
| 123. | 36.90 | Brentwood School District / 7,293 |
| 123. | 36.90 | South Pemiscot Schools / 3,895 |
| 126. | 37.00 | Dixon R-I School District / 5,972 |
| 126. | 37.00 | Hurley R-I School District / 1,847 |
| 126. | 37.00 | Marion County R-II School District / 1,425 |
| 126. | 37.00 | Livingston County R-III School District / 592 |
| 126. | 37.00 | Ripley County R-IV School District / 1,089 |
| 126. | 37.00 | Meadville R-IV School District / 1,209 |
| 126. | 37.00 | Moniteau County C-1 School District / 1,347 |
| 133. | 37.10 | Northwest R-I School District / 45,868 |
| 133. | 37.10 | Lonedell R-XIV School District / 3,458 |
| 133. | 37.10 | East Newton County R-VI School District / 8,427 |
| 133. | 37.10 | Kearney R-I School District / 19,654 |
| 133. | 37.10 | Bradleyville R-I School District / 1,029 |
| 138. | 37.20 | Elsberry R-II School District / 5,062 |
| 138. | 37.20 | Harrisonville R-IX School District / 14,047 |
| 138. | 37.20 | Thayer R-II School District / 4,586 |
| 138. | 37.20 | Winfield School District / 9,107 |
| 142. | 37.30 | Miller R-II School District / 4,228 |
| 142. | 37.30 | Warren County R-III School District / 17,048 |
| 142. | 37.30 | Marquand-Zion School District / 1,562 |
| 145. | 37.40 | Dadeville R-II School District / 1,048 |
| 145. | 37.40 | Zalma R-V School District / 1,648 |
| 145. | 37.40 | Crane R-III School District / 4,553 |
| 148. | 37.50 | Lone Jack C-6 School District / 2,894 |
| 148. | 37.50 | Jefferson City Public Schools / 69,264 |
| 148. | 37.50 | Valley Park School District / 8,095 |
| 148. | 37.50 | Osage County R-III School District / 6,465 |
| 152. | 37.60 | Mountain Grove R-III School District / 9,074 |
| 152. | 37.60 | Lawson R-XIV School District / 5,837 |
| 152. | 37.60 | Poplar Bluff R-I School District / 32,061 |
| 152. | 37.60 | Middle Grove C-1 School District / 630 |
| 152. | 37.60 | Osage County R-I School District / 1,285 |
| 157. | 37.70 | De Soto School District / 16,857 |
| 157. | 37.70 | Laquey R-V School District / 3,984 |
| 157. | 37.70 | Sunrise R-IX School District / 3,301 |
| 157. | 37.70 | Hannibal School District / 22,113 |
| 157. | 37.70 | Taneyville R-II School District / 1,803 |
| 157. | 37.70 | Nevada R-V School District / 14,322 |
| 163. | 37.80 | Leeton R-X School District / 1,963 |
| 163. | 37.80 | Sullivan School District / 11,324 |
| 163. | 37.80 | Grandview C-4 School District / 31,866 |
| 163. | 37.80 | St. Charles County R-V School District / 9,255 |
| 163. | 37.80 | Milan C-2 School District / 3,621 |
| 163. | 37.80 | Purdy R-II School District / 3,983 |
| 163. | 37.80 | South Iron County R-I School District / 1,813 |
| 163. | 37.80 | Howard County R-II School District / 2,455 |
| 171. | 37.90 | North Callaway R-I School District / 5,957 |
| 171. | 37.90 | Cole County R-V School District / 4,716 |
| 171. | 37.90 | Lathrop R-II School District / 4,945 |
| 171. | 37.90 | Fair Grove R-10 School District / 4,977 |
| 171. | 37.90 | Rich Hill R-IV School District / 2,687 |
| 171. | 37.90 | Gallatin R-V School District / 3,069 |
| 171. | 37.90 | Southern Boone County R-I School District / 7,140 |
| 178. | 38.00 | Lamar R-I School District / 7,458 |
| 178. | 38.00 | Union Star R-II School District / 991 |
| 178. | 38.00 | Hazelwood School District / 119,118 |
| 178. | 38.00 | South Callaway R-II Schools / 4,583 |
| 178. | 38.00 | North St. Francis County R-I School District / 21,238 |
| 178. | 38.00 | Jasper County R-V School District / 2,773 |
| 184. | 38.10 | Southwest R-V School District / 4,256 |
| 184. | 38.10 | Meramec Valley R-III School District / 22,290 |
| 184. | 38.10 | Clever R-V School District / 5,071 |
| 184. | 38.10 | West Plains R-VII School District / 12,882 |
| 188. | 38.20 | Centralia R-VI School District / 7,042 |
| 188. | 38.20 | Cameron R-I School District / 12,301 |
| 188. | 38.20 | Butler R-V School District / 6,541 |
| 188. | 38.20 | Montrose R-XIV School District / 880 |
| 188. | 38.20 | Boone County R-IV School District / 6,312 |
| 188. | 38.20 | Hancock Place School District / 8,113 |
| 194. | 38.30 | Howell Valley R-I School District / 2,102 |
| 194. | 38.30 | Francis Howell School District / 112,230 |
| 194. | 38.30 | Buchanan County R-IV School District / 2,309 |
| 197. | 38.40 | Laclede County C-5 School District / 4,080 |
| 197. | 38.40 | Luray 33 School District / 509 |
| 197. | 38.40 | Bowling Green R-I School District / 10,955 |
| 197. | 38.40 | Green Ridge R-VIII School District / 2,355 |
| 197. | 38.40 | Fordland R-III School District / 3,433 |
| 197. | 38.40 | Van-Far School District / 6,777 |
| 197. | 38.40 | Perry County 32 School District / 17,361 |
| 204. | 38.50 | Marshfield R-I School District / 17,749 |
| 204. | 38.50 | Strafford R-VI School District / 5,721 |
| 204. | 38.50 | St. Charles R-VI School District / 52,374 |
| 204. | 38.50 | Johnson County R-VII School District / 2,749 |
| 208. | 38.60 | Maries County R-I School District / 4,220 |
| 208. | 38.60 | Ash Grove R-IV School District / 5,145 |
| 208. | 38.60 | Polo R-VII School District / 2,159 |
| 211. | 38.70 | Arcadia Valley R-II School District / 5,922 |
| 211. | 38.70 | Northeast Randolph County R-IV School District / 1,939 |
| 211. | 38.70 | Bevier C-4 School District / 1,623 |
| 211. | 38.70 | Aurora R-8 School District / 10,286 |
| 211. | 38.70 | Pleasant View R-VI School District / 501 |
| 216. | 38.80 | Maysville R-I School District / 4,061 |
| 216. | 38.80 | North Pemiscot County R-I School District / 1,917 |
| 216. | 38.80 | Woodland R-IV School District / 5,595 |
| 216. | 38.80 | Prairie Home R-V School District / 1,098 |
| 216. | 38.80 | Richmond R-XVI School District / 9,900 |
| 216. | 38.80 | Crocker School District / 3,504 |
| 216. | 38.80 | Salem R-80 School District / 7,012 |
| 216. | 38.80 | Grundy County R-V School District / 1,128 |
| 224. | 38.90 | Bernie School District / 3,430 |
| 224. | 38.90 | Scott County R-II School District / 3,813 |
| 226. | 39.00 | Spickard R-II School District / 488 |
| 226. | 39.00 | Affton School District / 27,241 |
| 226. | 39.00 | Mid-Buchanan County R-V School District / 4,533 |
| 226. | 39.00 | Rockwood School District / 113,604 |
| 226. | 39.00 | Branson R-IV School District / 22,037 |
| 231. | 39.10 | Hollister R-V School District / 10,262 |
| 231. | 39.10 | Jackson R-II School District / 28,032 |
| 231. | 39.10 | Farmington R-7 School District / 25,861 |
| 231. | 39.10 | Sarcoxie R-II School District / 3,974 |
| 231. | 39.10 | Cass County R-V School District / 2,833 |
| 236. | 39.20 | Odessa R-VII School District / 11,333 |
| 236. | 39.20 | Portageville School District / 3,786 |
| 236. | 39.20 | Smithville School District / 11,345 |
| 239. | 39.30 | Bronaugh R-VII School District / 1,538 |
| 239. | 39.30 | North Andrew County R-VI School District / 1,704 |
| 239. | 39.30 | Dallas County R-I School District / 13,425 |
| 242. | 39.40 | Excelsior Springs 40 School District / 17,807 |
| 242. | 39.40 | Gideon School District / 1,664 |
| 242. | 39.40 | Savannah R-III School District / 13,623 |
| 242. | 39.40 | Westran R-I School District / 3,847 |
| 242. | 39.40 | Hillsboro R-III School District / 20,208 |
| 242. | 39.40 | Bunker R-III School District / 1,460 |
| 248. | 39.50 | Moniteau County R-VI School District / 5,170 |
| 249. | 39.60 | East Carter County R-II School District / 4,112 |
| 249. | 39.60 | Center 58 School District / 28,142 |
| 249. | 39.60 | Sikeston School District / 21,958 |
| 249. | 39.60 | Weaubleau R-III School District / 3,023 |
| 249. | 39.60 | Harrisburg R-VIII School District / 3,186 |
| 249. | 39.60 | Linn County R-I School District / 1,737 |
| 249. | 39.60 | Niangua R-V School District / 2,128 |
| 256. | 39.70 | Adair County R-II School District / 1,486 |
| 256. | 39.70 | Verona R-VII School District / 2,345 |
| 256. | 39.70 | Senath-Hornersville C-8 School District / 4,383 |
| 259. | 39.80 | Washington School District / 32,083 |
| 259. | 39.80 | Sparta R-III School District / 3,988 |
| 259. | 39.80 | Cabool School District / 5,215 |
| 259. | 39.80 | Renick R-V School District / 1,570 |
| 259. | 39.80 | Billings R-IV School District / 2,848 |
| 259. | 39.80 | Bismarck R-V School District / 3,156 |
| 259. | 39.80 | Southland School District / 2,106 |
| 259. | 39.80 | Webster Groves School District / 31,248 |
| 267. | 39.90 | Drexel R-IV School District / 1,752 |
| 267. | 39.90 | Kingston 42 School District / 425 |
| 267. | 39.90 | Licking School District / 5,818 |
| 267. | 39.90 | New Franklin R-I School District / 2,495 |
| 271. | 40.00 | Mountain View-Birch Tree R-III School District / 6,801 |
| 271. | 40.00 | Shawnee R-III School District / 716 |
| 271. | 40.00 | Jefferson County R-VII School District / 6,244 |
| 271. | 40.00 | Crystal City 47 School District / 3,857 |
| 275. | 40.10 | Raymondville R-7 School District / 1,092 |
| 275. | 40.10 | West Platte County R-II School District / 4,534 |
| 275. | 40.10 | Naylor R-II School District / 1,930 |
| 275. | 40.10 | Steelville School District / 5,179 |
| 275. | 40.10 | Westview C-6 School District / 1,148 |
| 275. | 40.10 | Grandview R-II School District / 4,420 |
| 281. | 40.20 | Hume R-VIII School District / 713 |
| 281. | 40.20 | Nell Holcomb R-IV School District / 2,742 |
| 281. | 40.20 | Braymer C-4 School District / 1,724 |
| 281. | 40.20 | Gasconade County R-II School District / 11,595 |
| 281. | 40.20 | Sherwood Cass R-VIII School District / 4,843 |
| 286. | 40.30 | Laclede County R-I School District / 3,772 |
| 286. | 40.30 | Delta R-V School District / 2,318 |
| 286. | 40.30 | Spring Bluff R-XV School District / 1,825 |
| 286. | 40.30 | Raytown C-2 School District / 58,655 |
| 286. | 40.30 | Schuyler County R-I School District / 4,453 |
| 291. | 40.40 | Plato R-V School District / 3,324 |
| 291. | 40.40 | Fredericktown R-I School District / 10,511 |
| 291. | 40.40 | Silex R-I School District / 2,237 |
| 291. | 40.40 | Adrian County R-III School District / 4,123 |
| 291. | 40.40 | Chadwick R-I School District / 1,305 |
| 296. | 40.50 | Greene County R-VIII School District / 11,812 |
| 296. | 40.50 | New York R-IV School District / 248 |
| 296. | 40.50 | East Lynne 40 School District / 1,485 |
| 296. | 40.50 | Northeast Vernon County R-I School District / 2,038 |
| 296. | 40.50 | Eminence R-I School District / 2,407 |
| 296. | 40.50 | Montgomery County R-II School District / 8,288 |
| 296. | 40.50 | Madison C-3 School District / 1,463 |
| 296. | 40.50 | West St. Francis County R-IV School District / 4,884 |
| 304. | 40.60 | Independence Public Schools / 71,310 |
| 304. | 40.60 | Otterville R-VI School District / 1,317 |
| 306. | 40.70 | North Nodaway County R-VI School District / 1,298 |
| 306. | 40.70 | Clark County R-I School District / 5,595 |
| 306. | 40.70 | North Harrison R-III School District / 1,613 |
| 306. | 40.70 | Gentry County R-II School District / 1,803 |
| 310. | 40.80 | Mexico 59 School District / 14,276 |
| 310. | 40.80 | Shelby County C-1 School District / 2,017 |
| 310. | 40.80 | Green Forest R-II School District / 2,194 |
| 310. | 40.80 | Seneca R-VII School District / 7,613 |
| 310. | 40.80 | East Buchanan County C-1 School District / 4,700 |
| 310. | 40.80 | Palmyra R-I School District / 6,234 |
| 316. | 40.90 | Junction Hill C-12 School District / 1,834 |
| 316. | 40.90 | Everton R-III School District / 1,338 |
| 316. | 40.90 | New Haven School District / 2,592 |
| 319. | 41.00 | Eldon R-I School District / 11,357 |
| 319. | 41.00 | Smithton R-VI School District / 3,119 |
| 321. | 41.10 | Fair Play R-II School District / 2,571 |
| 321. | 41.10 | Hardeman R-X School District / 626 |
| 323. | 41.20 | Dexter R-XI School District / 12,216 |
| 323. | 41.20 | Lafayette County C-1 School District / 6,269 |
| 323. | 41.20 | Chillicothe R-II School District / 11,789 |
| 323. | 41.20 | Osage County R-II School District / 4,748 |
| 323. | 41.20 | Community R-VI School District / 2,112 |
| 328. | 41.40 | Diamond R-IV School District / 5,195 |
| 328. | 41.40 | St. Elizabeth R-IV School District / 1,248 |
| 328. | 41.40 | Walnut Grove R-V School District / 1,926 |
| 331. | 41.50 | Northwestern R-I School District / 770 |
| 331. | 41.50 | North Wood R-IV School District / 1,960 |
| 331. | 41.50 | Name N/A / 95,371 |
| 331. | 41.50 | Holden R-III School District / 8,335 |
| 331. | 41.50 | Phelps County R-III School District / 1,908 |
| 336. | 41.60 | Pattonsburg R-II School District / 1,106 |
| 337. | 41.70 | Pilot Grove C-4 School District / 1,597 |
| 337. | 41.70 | Van Buren R-I School District / 2,606 |
| 337. | 41.70 | Concordia School District / 4,089 |
| 337. | 41.70 | New Madrid County R-I School District / 9,110 |
| 337. | 41.70 | Ripley County R-III School District / 913 |
| 337. | 41.70 | Scott County Central Schools / 1,704 |
| 337. | 41.70 | Ava R-I School District / 8,933 |
| 337. | 41.70 | Pulaski County R-IV School District / 3,403 |
| 345. | 41.80 | Bayless School District / 13,171 |
| 346. | 41.90 | Carrollton R-VII School District / 5,583 |
| 346. | 41.90 | Osborn R-O School District / 714 |
| 346. | 41.90 | Bell City R-II School District / 1,447 |
| 346. | 41.90 | Pattonville School District / 43,568 |
| 346. | 41.90 | Putnam County R-I School District / 4,625 |
| 351. | 42.00 | Orrick R-XI School District / 2,184 |
| 351. | 42.00 | Santa Fe R-X School District / 2,484 |
| 351. | 42.00 | Avenue City R-IX School District / 948 |
| 354. | 42.10 | South Nodaway County R-IV School District / 846 |
| 355. | 42.20 | School of The Osage R-II School District / 11,611 |
| 355. | 42.20 | Lakeland R-III School District / 2,834 |
| 355. | 42.20 | Charleston R-I School District / 7,871 |
| 355. | 42.20 | Kelso C-7 School District / 2,064 |
| 355. | 42.20 | Marionville R-IX School District / 3,663 |
| 360. | 42.30 | Mehlville School District / 97,170 |
| 360. | 42.30 | Malden R-I School District / 6,270 |
| 360. | 42.30 | Doniphan R-I School District / 9,668 |
| 360. | 42.30 | Neelyville R-IV School District / 3,101 |
| 360. | 42.30 | Miami R-I School District / 1,274 |
| 365. | 42.40 | Stet R-XV School District / 579 |
| 365. | 42.40 | Meadow Heights R-II School District / 3,688 |
| 365. | 42.40 | Lockwood R-I School District / 2,219 |
| 368. | 42.50 | Richland R-I School District / 1,940 |
| 368. | 42.50 | Ste. Genevieve County R-II School District / 14,991 |
| 370. | 42.60 | South Harrison School District / 5,175 |
| 370. | 42.60 | Rock Port R-II School District / 2,382 |
| 372. | 42.70 | Willow Springs R-IV School District / 7,357 |
| 372. | 42.70 | Crawford County R-2 School District / 8,212 |
| 374. | 42.80 | Franklin County R-II School District / 1,326 |
| 374. | 42.80 | Cassville R-IV School District / 11,327 |
| 374. | 42.80 | Miami R-I School District / 517 |
| 374. | 42.80 | Hamilton R-II School District / 3,899 |
| 374. | 42.80 | South Holt County R-I School District / 1,755 |
| 379. | 42.90 | Parkway School District / 137,900 |
| 379. | 42.90 | Oak Ridge R-VI School District / 2,000 |
| 379. | 42.90 | Ralls County R-II School District / 5,691 |
| 382. | 43.10 | Scotland County R-I School District / 4,343 |
| 382. | 43.10 | Bakersfield R-IV School District / 1,408 |
| 382. | 43.10 | Mansfield R-IV School District / 3,588 |
| 385. | 43.20 | Marion County Early R-V School District / 3,453 |
| 386. | 43.30 | Name N/A / 360 |
| 386. | 43.30 | Oregon-Howell R-III School District / 1,635 |
| 386. | 43.30 | Paris R-II School District / 3,555 |
| 389. | 43.40 | Kirkwood School District / 39,554 |
| 389. | 43.40 | Cole Camp R-I School District / 4,261 |
| 389. | 43.40 | Southern Reynolds County R-IV School District / 3,124 |
| 389. | 43.40 | Strasburg C-3 School District / 870 |
| 389. | 43.40 | Gasconade County R-I School District / 8,145 |
| 394. | 43.50 | Higbee R-VIII School District / 1,446 |
| 394. | 43.50 | North Daviess R-III School District / 790 |
| 394. | 43.50 | Chilhowee R-IV School District / 1,031 |
| 397. | 43.60 | Louisiana R-II School District / 4,551 |
| 397. | 43.60 | Marceline R-V School District / 3,948 |
| 397. | 43.60 | Clearwater R-I School District / 6,459 |
| 397. | 43.60 | Knox County R-I School District / 3,972 |
| 401. | 43.70 | Nodaway-Holt R-VII School District / 1,767 |
| 401. | 43.70 | Lexington R-V School District / 5,879 |
| 401. | 43.70 | St. James R-I School District / 9,378 |
| 401. | 43.70 | Callao C-8 School District / 751 |
| 401. | 43.70 | Stewartsville C-2 School District / 1,153 |
| 406. | 43.80 | Delta C-7 School District / 1,183 |
| 406. | 43.80 | Shelby County R-IV School District / 4,435 |
| 406. | 43.80 | Adair County R-I School District / 1,695 |
| 406. | 43.80 | Clinton County R-III School District / 4,946 |
| 406. | 43.80 | Hartville R-II School District / 4,862 |
| 406. | 43.80 | Gilman City R-IV School District / 819 |
| 412. | 43.90 | Holliday C-2 School District / 542 |
| 412. | 43.90 | Greenville R-II School District / 5,124 |
| 412. | 43.90 | King City R-I School District / 1,726 |
| 415. | 44.00 | Morgan County R-II School District / 12,262 |
| 415. | 44.00 | Leopold R-III School District / 855 |
| 417. | 44.10 | Advance R-IV School District / 2,893 |
| 417. | 44.10 | Midway School District / 3,528 |
| 419. | 44.20 | Clinton School District / 11,562 |
| 419. | 44.20 | Henry County R-I School District / 4,426 |
| 419. | 44.20 | Pierce City R-VI School District / 3,824 |
| 422. | 44.30 | Monroe City R-I School District / 5,057 |
| 422. | 44.30 | Stockton R-I School District / 7,140 |
| 422. | 44.30 | Spokane R-VII School District / 4,379 |
| 422. | 44.30 | Morgan County R-I School District / 5,041 |
| 422. | 44.30 | Craig R-III School District / 859 |
| 422. | 44.30 | El Dorado Springs R-II School District / 7,306 |
| 422. | 44.30 | Sweet Springs R-VII School District / 3,042 |
| 429. | 44.40 | Fairfax R-III School District / 1,126 |
| 430. | 44.50 | North Mercer County R-III School District / 1,101 |
| 430. | 44.50 | West Nodaway County R-I School District / 1,704 |
| 430. | 44.50 | Valley R-VI School District / 2,949 |
| 433. | 44.60 | Brookfield R-III School District / 6,487 |
| 433. | 44.60 | Slater School District / 2,251 |
| 433. | 44.60 | Iron County C-4 School District / 3,078 |
| 436. | 44.70 | Trenton R-IX School District / 7,650 |
| 436. | 44.70 | Boncl R-X School District / 517 |
| 436. | 44.70 | Golden City School District / 1,783 |
| 439. | 44.80 | Ladue School District / 26,071 |
| 439. | 44.80 | Summersville R-II School District / 2,988 |
| 439. | 44.80 | Cowgill R-VI School District / 327 |
| 442. | 44.90 | Houston R-I School District / 5,759 |
| 442. | 44.90 | Miller County R-III School District / 1,577 |
| 444. | 45.00 | North Platte County R-I School District / 4,083 |
| 445. | 45.10 | Success R-VI School District / 947 |
| 445. | 45.10 | Lincoln R-II School District / 4,178 |
| 447. | 45.20 | Laredo R-VII School District / 479 |
| 448. | 45.30 | Princeton R-V School District / 2,277 |
| 449. | 45.50 | Puxico R-VIII School District / 4,589 |
| 449. | 45.50 | Norborne R-VIII School District / 1,323 |
| 451. | 45.60 | Macon County R-I School District / 8,196 |
| 451. | 45.60 | Southwest Livingston County R-I School District / 1,123 |
| 451. | 45.60 | Lindbergh R-VIII School District / 46,625 |
| 454. | 45.70 | Fairview R-XI School District / 4,355 |
| 455. | 45.80 | Campbell R-II School District / 3,546 |
| 455. | 45.80 | Gilliam C-4 School District / 377 |
| 455. | 45.80 | Mirabile C-1 School District / 308 |
| 458. | 45.90 | Camdenton R-III School District / 27,766 |
| 458. | 45.90 | Twin Rivers R-X School District / 5,356 |
| 460. | 46.00 | Holt County R-II School District / 1,871 |
| 460. | 46.00 | Maries County R-II School District / 5,183 |
| 460. | 46.00 | Wellsville-Middletown R-I School District / 2,853 |
| 460. | 46.00 | Swedeborg R-III School District / 550 |
| 460. | 46.00 | Brunswick R-II School District / 1,886 |
| 465. | 46.10 | Bosworth R-V School District / 791 |
| 465. | 46.10 | Salisbury R-IV School District / 2,982 |
| 465. | 46.10 | Lewis County C-1 School District / 5,726 |
| 465. | 46.10 | Forsyth R-III School District / 7,622 |
| 469. | 46.30 | Altenburg 48 School District / 1,121 |
| 469. | 46.30 | Glenwood R-VIII School District / 2,296 |
| 469. | 46.30 | Tarkio R-I School District / 2,570 |
| 469. | 46.30 | Albany R-III School District / 2,870 |
| 473. | 46.40 | Green City R-I School District / 1,961 |
| 474. | 46.70 | Hickory County R-I School District / 4,610 |
| 475. | 46.80 | Newburg R-II School District / 2,738 |
| 475. | 46.80 | Breckenridge R-I School District / 448 |
| 477. | 46.90 | Gainesville R-V School District / 4,785 |
| 478. | 47.00 | Mark Twain R-VIII School District / 642 |
| 478. | 47.00 | Ridgeway R-V School District / 798 |
| 480. | 47.10 | Malta Bend R-V School District / 601 |
| 480. | 47.10 | Winston R-VI School District / 1,139 |
| 480. | 47.10 | Centerville R-I School District / 745 |
| 483. | 47.20 | Lesterville R-IV School District / 1,172 |
| 484. | 47.30 | Keytesville R-III School District / 1,114 |
| 484. | 47.30 | Gasconade C-4 School District / 811 |
| 486. | 47.40 | Alton R-IV School District / 3,525 |
| 487. | 47.60 | Davis R-XII School District / 491 |
| 487. | 47.60 | Manes R-V School District / 620 |
| 489. | 47.80 | Dora R-III School District / 1,605 |
| 489. | 47.80 | Risco R-II School District / 616 |
| 491. | 47.90 | Pemiscot County R-3 School District / 820 |
| 492. | 48.00 | Ballard R-II School District / 746 |
| 493. | 48.10 | Worth County R-III School District / 2,053 |
| 494. | 48.30 | Appleton City R-II School District / 2,278 |
| 494. | 48.30 | Camden County R-II School District / 2,569 |
| 496. | 48.80 | Couch R-I School District / 1,105 |
| 496. | 48.80 | Leesville R-IX School District / 1,054 |
| 498. | 49.00 | Thornfield R-I School District / 659 |
| 499. | 49.20 | Cainsville R-I School District / 509 |
| 499. | 49.20 | Missouri City 56 School District / 677 |
| 501. | 49.30 | Macon County R-IV School District / 918 |
| 501. | 49.30 | Bucklin R-II School District / 979 |
| 503. | 49.40 | Reeds Spring R-IV School District / 15,686 |
| 503. | 49.40 | Humansville R-IV School District / 3,215 |
| 505. | 49.60 | Macks Creek R-V School District / 2,017 |
| 506. | 49.70 | Hudson R-IX School District / 404 |
| 507. | 49.80 | Belleview R-III School District / 1,252 |
| 507. | 49.80 | Hale R-I School District / 838 |
| 509. | 49.90 | Oak Hill R-I School District / 1,182 |
| 510. | 50.00 | Plainview R-VIII School District / 947 |
| 510. | 50.00 | Lutie R-VI School District / 1,488 |
| 512. | 50.10 | Orearville R-IV School District / 375 |
| 513. | 50.80 | Osceola School District / 3,086 |
| 514. | 50.90 | Dent-Phelps R-III School District / 1,931 |
| 514. | 50.90 | Revere C-3 School District / 627 |
| 516. | 51.10 | Greenfield R-IV School District / 2,953 |
| 517. | 52.90 | Warsaw R-IX School District / 10,650 |
| 518. | 54.30 | Climax Springs R-IV School District / 3,188 |
| 519. | 54.40 | Blue Eye School District / 5,221 |
| 520. | 54.70 | Shell Knob 78 School District / 2,503 |
| 521. | 55.50 | Hermitage R-IV School District / 3,000 |
| 522. | 56.50 | Roscoe C-1 School District / 517 |
| 523. | 59.50 | Wheatland R-II School District / 2,515 |
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.
