| Rank | Median Age ▲ | School District / Population |
| 1. | 24.00 | Waynesville R-VI Schools / 36,404 |
| 1. | 24.00 | Maryville R-II Schools / 15,911 |
| 3. | 25.40 | Wellston School District / 2,767 |
| 3. | 25.40 | Knob Noster R-VIII School District / 8,419 |
| 5. | 25.60 | Warrensburg R-VI School District / 25,863 |
| 6. | 26.00 | Moniteau County R-V School District / 1,100 |
| 7. | 26.20 | Kirksville R-III School District / 22,063 |
| 8. | 28.00 | Clayton School District / 18,618 |
| 9. | 28.20 | Columbia Public Schools / 136,836 |
| 10. | 28.70 | Tri-County R-VII School District / 2,010 |
| 11. | 29.10 | Middle Grove C-1 School District / 691 |
| 12. | 29.90 | Seymour R-II School District / 6,617 |
| 13. | 30.60 | Rolla 31 School District / 30,939 |
| 14. | 30.80 | Canton School District / 4,008 |
| 15. | 31.80 | Riverview Gardens School District / 41,192 |
| 16. | 32.30 | Cape Girardeau 63 School District / 38,472 |
| 17. | 32.70 | Hickman Mills C-1 School District / 47,092 |
| 18. | 32.80 | Grain Valley R-V School District / 17,765 |
| 19. | 33.10 | Verona R-VII School District / 2,395 |
| 20. | 33.30 | Webb City R-VII School District / 21,342 |
| 21. | 33.80 | La Monte R-IV School District / 1,950 |
| 21. | 33.80 | Kansas City School District / 194,122 |
| 21. | 33.80 | Liberty Schools / 53,223 |
| 21. | 33.80 | Jennings School District / 17,392 |
| 25. | 33.90 | Wentzville R-IV School District / 71,390 |
| 25. | 33.90 | St. Louis City School District / 319,294 |
| 25. | 33.90 | Republic School District / 23,511 |
| 28. | 34.00 | Troy R-III School District / 33,238 |
| 28. | 34.00 | Caruthersville School District / 6,133 |
| 30. | 34.20 | Central R-III School District / 11,625 |
| 31. | 34.30 | Fulton School District / 19,130 |
| 31. | 34.30 | Sturgeon R-V School District / 3,665 |
| 31. | 34.30 | High Point R-III School District / 811 |
| 31. | 34.30 | Bolivar R-I School District / 16,129 |
| 31. | 34.30 | Dunklin R-V School District / 9,270 |
| 36. | 34.40 | Spickard R-II School District / 589 |
| 37. | 34.70 | Normandy School District / 35,210 |
| 38. | 34.90 | Marshall School District / 15,199 |
| 38. | 34.90 | Ozark R-VI School District / 28,805 |
| 40. | 35.00 | Springfield School District / 204,727 |
| 40. | 35.00 | Clever R-V School District / 5,906 |
| 42. | 35.10 | Norwood R-I School District / 2,130 |
| 42. | 35.10 | Brentwood School District / 8,138 |
| 44. | 35.20 | Carthage R-IX School District / 23,293 |
| 44. | 35.20 | Cooter R-IV School District / 882 |
| 46. | 35.30 | Fort Osage R-I School District / 25,145 |
| 46. | 35.30 | Fayette R-III School District / 5,145 |
| 46. | 35.30 | Belton 124 School District / 26,622 |
| 49. | 35.40 | Sheldon R-VIII School District / 1,154 |
| 49. | 35.40 | Hayti R-II School District / 3,876 |
| 51. | 35.50 | Monett R-I School District / 12,231 |
| 52. | 35.60 | Oak Grove R-VI School District / 10,944 |
| 52. | 35.60 | Maplewood-Richmond Heights School District / 13,958 |
| 52. | 35.60 | Windsor C-1 School District / 18,193 |
| 55. | 35.70 | Sparta R-III School District / 4,394 |
| 55. | 35.70 | Willard School District / 23,600 |
| 55. | 35.70 | Platte County R-III School District / 22,548 |
| 58. | 35.80 | Clarksburg C-2 School District / 805 |
| 59. | 35.90 | St. Charles R-VI School District / 53,421 |
| 60. | 36.00 | Sedalia 200 School District / 29,793 |
| 60. | 36.00 | Ritenour School District / 43,629 |
| 62. | 36.10 | Valley Park School District / 8,427 |
| 63. | 36.20 | McDonald County R-I School District / 18,808 |
| 63. | 36.20 | Jefferson C-123 School District / 884 |
| 63. | 36.20 | Carl Junction R-I School District / 15,576 |
| 63. | 36.20 | St. Joseph School District / 80,701 |
| 67. | 36.30 | Holcomb R-III School District / 2,610 |
| 68. | 36.40 | Nixa School District / 28,372 |
| 68. | 36.40 | Joplin R-VIII School District / 59,509 |
| 70. | 36.50 | Neosho R-5 School District / 26,125 |
| 70. | 36.50 | Ferguson-Florissant School District / 69,050 |
| 70. | 36.50 | Fox C-6 School District / 67,955 |
| 70. | 36.50 | Scott City R-I School District / 5,355 |
| 74. | 36.60 | Festus R-6 School District / 17,876 |
| 75. | 36.70 | Union R-XI School District / 19,974 |
| 75. | 36.70 | Clarkton C-4 School District / 1,880 |
| 75. | 36.70 | Blue Springs R-IV School District / 76,331 |
| 78. | 36.80 | La Plata R-II School District / 2,731 |
| 78. | 36.80 | Moberly School District / 16,390 |
| 78. | 36.80 | Winfield School District / 10,004 |
| 78. | 36.80 | Purdy R-II School District / 3,365 |
| 78. | 36.80 | Crystal City 47 School District / 3,992 |
| 83. | 36.90 | North Kansas City School District / 123,348 |
| 84. | 37.00 | Grandview C-4 School District / 31,917 |
| 84. | 37.00 | Fort Zumwalt R-II School District / 110,048 |
| 84. | 37.00 | Exeter R-VI School District / 1,891 |
| 87. | 37.10 | Halfway R-III School District / 2,223 |
| 87. | 37.10 | Cole County R-II School District / 6,068 |
| 89. | 37.20 | Lee's Summit R-7 School District / 91,982 |
| 89. | 37.20 | University City School District / 35,962 |
| 89. | 37.20 | Hancock Place School District / 8,388 |
| 92. | 37.30 | Pleasant Hill R-III School District / 11,062 |
| 92. | 37.30 | Osage County R-II School District / 5,310 |
| 92. | 37.30 | Gorin R-III School District / 430 |
| 92. | 37.30 | Scott County R-II School District / 3,816 |
| 96. | 37.40 | Gentry County R-II School District / 2,293 |
| 96. | 37.40 | Avilla R-XIII School District / 1,368 |
| 96. | 37.40 | South Pemiscot Schools / 3,594 |
| 96. | 37.40 | Howell Valley R-I School District / 2,005 |
| 96. | 37.40 | New Haven School District / 2,522 |
| 101. | 37.50 | West Plains R-VII School District / 13,461 |
| 102. | 37.60 | Park Hill School District / 62,261 |
| 103. | 37.70 | Pettis County R-V School District / 2,174 |
| 103. | 37.70 | Kingston K-14 School District / 4,898 |
| 103. | 37.70 | Wheaton R-III School District / 2,375 |
| 103. | 37.70 | Boone County R-IV School District / 7,263 |
| 103. | 37.70 | Boonville School District / 11,591 |
| 103. | 37.70 | Sullivan School District / 11,771 |
| 103. | 37.70 | Jefferson City Public Schools / 71,991 |
| 103. | 37.70 | Fordland R-III School District / 4,467 |
| 111. | 37.80 | Johnson County R-VII School District / 3,630 |
| 111. | 37.80 | Liberal R-II School District / 2,982 |
| 113. | 37.90 | Luray 33 School District / 414 |
| 113. | 37.90 | Kirbyville R-VI School District / 2,835 |
| 113. | 37.90 | Richwoods R-VII School District / 1,651 |
| 116. | 38.00 | Iberia R-V School District / 3,972 |
| 116. | 38.00 | St. Clair R-XIII School District / 12,448 |
| 118. | 38.10 | Laquey R-V School District / 3,939 |
| 118. | 38.10 | North St. Francis County R-I School District / 20,261 |
| 118. | 38.10 | St. Elizabeth R-IV School District / 1,263 |
| 121. | 38.20 | Bowling Green R-I School District / 11,119 |
| 121. | 38.20 | Milan C-2 School District / 3,958 |
| 121. | 38.20 | Licking School District / 6,662 |
| 124. | 38.30 | Cameron R-I School District / 13,070 |
| 124. | 38.30 | Hazelwood School District / 118,853 |
| 126. | 38.40 | Hannibal School District / 22,813 |
| 126. | 38.40 | Hume R-VIII School District / 834 |
| 126. | 38.40 | Northeast Nodaway County R-V School District / 1,328 |
| 126. | 38.40 | Richards R-V School District / 3,369 |
| 126. | 38.40 | Lebanon School District / 24,821 |
| 126. | 38.40 | Raymore-Peculiar R-II School District / 32,915 |
| 126. | 38.40 | Moniteau County R-VI School District / 5,028 |
| 133. | 38.50 | East Newton County R-VI School District / 8,895 |
| 133. | 38.50 | Cass County R-V School District / 2,989 |
| 133. | 38.50 | Kennett 39 School District / 10,898 |
| 136. | 38.60 | Westview C-6 School District / 1,222 |
| 136. | 38.60 | Harrisonville R-IX School District / 14,019 |
| 136. | 38.60 | Scott County R-IV School District / 5,905 |
| 139. | 38.70 | Potosi R-III School District / 13,408 |
| 139. | 38.70 | Crocker School District / 3,333 |
| 141. | 38.80 | Winona R-III School District / 2,622 |
| 141. | 38.80 | Otterville R-VI School District / 1,540 |
| 141. | 38.80 | Aurora R-8 School District / 11,098 |
| 141. | 38.80 | Bell City R-II School District / 1,474 |
| 141. | 38.80 | Moniteau County R-I School District / 7,210 |
| 141. | 38.80 | Henry County R-I School District / 4,607 |
| 147. | 38.90 | Perry County 32 School District / 17,763 |
| 147. | 38.90 | Sarcoxie R-II School District / 4,107 |
| 149. | 39.00 | Hillsboro R-III School District / 21,291 |
| 149. | 39.00 | Mexico 59 School District / 15,366 |
| 149. | 39.00 | Warren County R-III School District / 18,599 |
| 149. | 39.00 | Meramec Valley R-III School District / 22,762 |
| 153. | 39.10 | Jackson R-II School District / 30,067 |
| 153. | 39.10 | De Soto School District / 17,199 |
| 153. | 39.10 | St. Charles County R-V School District / 10,607 |
| 153. | 39.10 | Branson R-IV School District / 26,576 |
| 153. | 39.10 | Northeast Randolph County R-IV School District / 2,015 |
| 158. | 39.20 | Francis Howell School District / 113,553 |
| 158. | 39.20 | Gideon School District / 1,733 |
| 158. | 39.20 | Sherwood Cass R-VIII School District / 5,085 |
| 158. | 39.20 | Livingston County R-III School District / 622 |
| 158. | 39.20 | Van-Far School District / 5,416 |
| 163. | 39.30 | Hollister R-V School District / 10,430 |
| 163. | 39.30 | Northwest R-I School District / 45,694 |
| 163. | 39.30 | Pierce City R-VI School District / 4,344 |
| 163. | 39.30 | Scotland County R-I School District / 4,419 |
| 163. | 39.30 | Chadwick R-I School District / 1,517 |
| 163. | 39.30 | New Bloomfield R-III School District / 4,232 |
| 163. | 39.30 | Southern Boone County R-I School District / 7,932 |
| 163. | 39.30 | Smithville School District / 11,921 |
| 163. | 39.30 | Charleston R-I School District / 8,525 |
| 172. | 39.40 | Southwest R-V School District / 4,746 |
| 172. | 39.40 | North Andrew County R-VI School District / 1,898 |
| 172. | 39.40 | Hurley R-I School District / 1,546 |
| 172. | 39.40 | Lawson R-XIV School District / 5,981 |
| 172. | 39.40 | Cole County R-V School District / 4,962 |
| 172. | 39.40 | Centralia R-VI School District / 7,249 |
| 172. | 39.40 | Sikeston School District / 20,716 |
| 172. | 39.40 | Center 58 School District / 24,971 |
| 172. | 39.40 | Plato R-V School District / 3,401 |
| 172. | 39.40 | Osage County R-III School District / 6,495 |
| 172. | 39.40 | Hardin-Central C-2 School District / 1,044 |
| 183. | 39.50 | East Prairie R-II School District / 5,821 |
| 183. | 39.50 | Poplar Bluff R-I School District / 32,169 |
| 185. | 39.60 | Northeast Vernon County R-I School District / 2,004 |
| 185. | 39.60 | Laclede County C-5 School District / 3,950 |
| 185. | 39.60 | Ripley County R-IV School District / 1,112 |
| 185. | 39.60 | Strasburg C-3 School District / 1,109 |
| 185. | 39.60 | East Carter County R-II School District / 4,244 |
| 185. | 39.60 | Farmington R-7 School District / 27,796 |
| 185. | 39.60 | Odessa R-VII School District / 12,274 |
| 185. | 39.60 | East Lynne 40 School District / 1,340 |
| 193. | 39.70 | Kearney R-I School District / 17,877 |
| 193. | 39.70 | Raytown C-2 School District / 58,838 |
| 193. | 39.70 | Marshfield R-I School District / 16,818 |
| 193. | 39.70 | Excelsior Springs 40 School District / 17,189 |
| 193. | 39.70 | Leeton R-X School District / 1,883 |
| 198. | 39.80 | Nevada R-V School District / 15,264 |
| 198. | 39.80 | Senath-Hornersville C-8 School District / 4,755 |
| 198. | 39.80 | Portageville School District / 4,260 |
| 198. | 39.80 | Pleasant Hope R-VI School District / 4,888 |
| 202. | 39.90 | Green Ridge R-VIII School District / 2,124 |
| 202. | 39.90 | Diamond R-IV School District / 5,638 |
| 202. | 39.90 | Bayless School District / 13,162 |
| 202. | 39.90 | Wright City R-II School District / 10,768 |
| 202. | 39.90 | Oran R-III School District / 2,135 |
| 202. | 39.90 | Seneca R-VII School District / 8,756 |
| 208. | 40.00 | Harrisburg R-VIII School District / 3,294 |
| 208. | 40.00 | Taneyville R-II School District / 1,598 |
| 208. | 40.00 | Independence Public Schools / 94,720 |
| 208. | 40.00 | Miller R-II School District / 4,104 |
| 212. | 40.10 | Jasper County R-V School District / 2,971 |
| 212. | 40.10 | Kingston 42 School District / 483 |
| 212. | 40.10 | Dixon R-I School District / 6,436 |
| 215. | 40.20 | Spring Bluff R-XV School District / 1,752 |
| 215. | 40.20 | Braymer C-4 School District / 1,731 |
| 215. | 40.20 | Lathrop R-II School District / 4,836 |
| 215. | 40.20 | Adair County R-II School District / 1,379 |
| 215. | 40.20 | New York R-IV School District / 313 |
| 215. | 40.20 | Palmyra R-I School District / 6,736 |
| 215. | 40.20 | Newtown-Harris R-III School District / 497 |
| 215. | 40.20 | Webster Groves School District / 32,140 |
| 223. | 40.30 | Salem R-80 School District / 7,006 |
| 223. | 40.30 | Westran R-I School District / 3,668 |
| 223. | 40.30 | Meadville R-IV School District / 1,279 |
| 223. | 40.30 | Prairie Home R-V School District / 1,387 |
| 227. | 40.40 | North Nodaway County R-VI School District / 1,376 |
| 227. | 40.40 | Affton School District / 26,187 |
| 227. | 40.40 | North Callaway R-I School District / 6,857 |
| 227. | 40.40 | Adrian County R-III School District / 3,923 |
| 227. | 40.40 | Fredericktown R-I School District / 10,918 |
| 232. | 40.50 | Elsberry R-II School District / 4,790 |
| 232. | 40.50 | Cole County R-I School District / 3,990 |
| 232. | 40.50 | Steelville School District / 5,883 |
| 232. | 40.50 | Crane R-III School District / 3,558 |
| 232. | 40.50 | Scott County Central Schools / 1,971 |
| 237. | 40.60 | West St. Francis County R-IV School District / 5,878 |
| 237. | 40.60 | Sunrise R-IX School District / 3,289 |
| 237. | 40.60 | Laclede County R-I School District / 4,462 |
| 237. | 40.60 | Lexington R-V School District / 5,908 |
| 237. | 40.60 | Leopold R-III School District / 889 |
| 242. | 40.70 | Richmond R-XVI School District / 10,016 |
| 242. | 40.70 | Malden R-I School District / 6,275 |
| 242. | 40.70 | Lamar R-I School District / 7,415 |
| 242. | 40.70 | Shelby County C-1 School District / 2,131 |
| 242. | 40.70 | Savannah R-III School District / 13,635 |
| 242. | 40.70 | Chillicothe R-II School District / 12,889 |
| 242. | 40.70 | Crawford County R-I School District / 6,249 |
| 242. | 40.70 | Miller County R-III School District / 1,414 |
| 242. | 40.70 | Southland School District / 2,050 |
| 251. | 40.80 | Gallatin R-V School District / 3,183 |
| 251. | 40.80 | St. James R-I School District / 10,203 |
| 253. | 40.90 | Buchanan County R-IV School District / 2,123 |
| 253. | 40.90 | Hamilton R-II School District / 3,778 |
| 253. | 40.90 | Orrick R-XI School District / 2,049 |
| 253. | 40.90 | Rockwood School District / 116,321 |
| 253. | 40.90 | South Callaway R-II Schools / 4,457 |
| 258. | 41.00 | New Madrid County R-I School District / 9,385 |
| 258. | 41.00 | Oak Ridge R-VI School District / 2,304 |
| 258. | 41.00 | Marion County R-II School District / 1,278 |
| 258. | 41.00 | Bronaugh R-VII School District / 1,429 |
| 258. | 41.00 | Schuyler County R-I School District / 4,565 |
| 258. | 41.00 | Bernie School District / 3,151 |
| 258. | 41.00 | Silex R-I School District / 2,565 |
| 258. | 41.00 | Drexel R-IV School District / 1,798 |
| 266. | 41.10 | Lafayette County C-1 School District / 6,585 |
| 266. | 41.10 | Walnut Grove R-V School District / 1,930 |
| 266. | 41.10 | Willow Springs R-IV School District / 7,728 |
| 266. | 41.10 | Neelyville R-IV School District / 3,822 |
| 270. | 41.20 | Breckenridge R-I School District / 590 |
| 271. | 41.30 | Mount Vernon R-V School District / 9,214 |
| 271. | 41.30 | Greene County R-VIII School District / 12,679 |
| 271. | 41.30 | Billings R-IV School District / 2,838 |
| 271. | 41.30 | Rich Hill R-IV School District / 2,572 |
| 271. | 41.30 | Kingsville R-I School District / 1,952 |
| 271. | 41.30 | Shawnee R-III School District / 637 |
| 277. | 41.40 | Woodland R-IV School District / 5,940 |
| 277. | 41.40 | Marion County Early R-V School District / 3,938 |
| 277. | 41.40 | Spokane R-VII School District / 4,750 |
| 277. | 41.40 | Grandview R-II School District / 4,814 |
| 277. | 41.40 | Mansfield R-IV School District / 4,349 |
| 282. | 41.50 | Lone Jack C-6 School District / 3,100 |
| 282. | 41.50 | Pemiscot County R-3 School District / 956 |
| 282. | 41.50 | Risco R-II School District / 769 |
| 282. | 41.50 | Maysville R-I School District / 4,187 |
| 282. | 41.50 | Strafford R-VI School District / 6,647 |
| 287. | 41.60 | Crawford County R-2 School District / 9,186 |
| 287. | 41.60 | Concordia School District / 3,799 |
| 287. | 41.60 | Blackwater R-II School District / 913 |
| 287. | 41.60 | Hudson R-IX School District / 458 |
| 287. | 41.60 | Mountain Grove R-III School District / 9,530 |
| 292. | 41.70 | Doniphan R-I School District / 10,336 |
| 292. | 41.70 | Dexter R-XI School District / 12,958 |
| 292. | 41.70 | Pilot Grove C-4 School District / 1,708 |
| 292. | 41.70 | Fair Grove R-10 School District / 5,671 |
| 292. | 41.70 | Butler R-V School District / 6,338 |
| 292. | 41.70 | Marionville R-IX School District / 4,616 |
| 292. | 41.70 | Carrollton R-VII School District / 5,621 |
| 292. | 41.70 | Glenwood R-VIII School District / 2,362 |
| 300. | 41.80 | Pattonville School District / 41,088 |
| 300. | 41.80 | Washington School District / 31,485 |
| 300. | 41.80 | Atlanta C-3 Schools / 1,247 |
| 300. | 41.80 | Mountain View-Birch Tree R-III School District / 8,022 |
| 300. | 41.80 | Bismarck R-V School District / 3,674 |
| 300. | 41.80 | East Buchanan County C-1 School District / 4,354 |
| 300. | 41.80 | Bradleyville R-I School District / 961 |
| 307. | 41.90 | Pulaski County R-IV School District / 3,431 |
| 307. | 41.90 | Nell Holcomb R-IV School District / 2,812 |
| 307. | 41.90 | Pettis County R-XII School District / 1,044 |
| 307. | 41.90 | Brookfield R-III School District / 6,503 |
| 307. | 41.90 | Phelps County R-III School District / 2,018 |
| 307. | 41.90 | Puxico R-VIII School District / 4,976 |
| 313. | 42.00 | Chilhowee R-IV School District / 1,053 |
| 313. | 42.00 | Trenton R-IX School District / 7,824 |
| 313. | 42.00 | Meadow Heights R-II School District / 3,747 |
| 313. | 42.00 | Bloomfield School District / 4,658 |
| 317. | 42.10 | South Harrison School District / 5,688 |
| 317. | 42.10 | Campbell R-II School District / 3,611 |
| 317. | 42.10 | Malta Bend R-V School District / 669 |
| 317. | 42.10 | South Nodaway County R-IV School District / 997 |
| 321. | 42.20 | Santa Fe R-X School District / 2,517 |
| 321. | 42.20 | Lewis County C-1 School District / 6,554 |
| 321. | 42.20 | Pattonsburg R-II School District / 1,103 |
| 321. | 42.20 | Arcadia Valley R-II School District / 5,908 |
| 321. | 42.20 | Marceline R-V School District / 3,601 |
| 326. | 42.30 | Calhoun R-VIII School District / 1,112 |
| 326. | 42.30 | Dallas County R-I School District / 12,874 |
| 326. | 42.30 | Pike County R-III School District / 2,957 |
| 326. | 42.30 | Princeton R-V School District / 2,633 |
| 326. | 42.30 | Eldon R-I School District / 12,072 |
| 326. | 42.30 | Smithton R-VI School District / 3,719 |
| 326. | 42.30 | Lonedell R-XIV School District / 3,476 |
| 326. | 42.30 | Bunker R-III School District / 1,547 |
| 334. | 42.40 | Mid-Buchanan County R-V School District / 4,290 |
| 334. | 42.40 | Advance R-IV School District / 3,021 |
| 334. | 42.40 | Clark County R-I School District / 6,053 |
| 334. | 42.40 | Ste. Genevieve County R-II School District / 15,185 |
| 338. | 42.50 | Hartville R-II School District / 4,468 |
| 338. | 42.50 | King City R-I School District / 1,874 |
| 338. | 42.50 | Bevier C-4 School District / 1,395 |
| 338. | 42.50 | South Iron County R-I School District / 2,294 |
| 338. | 42.50 | Richland R-I School District / 1,542 |
| 338. | 42.50 | Junction Hill C-12 School District / 1,889 |
| 338. | 42.50 | North Harrison R-III School District / 1,436 |
| 345. | 42.60 | Clinton School District / 11,509 |
| 345. | 42.60 | Macon County R-I School District / 8,696 |
| 345. | 42.60 | Altenburg 48 School District / 1,046 |
| 345. | 42.60 | Oregon-Howell R-III School District / 1,627 |
| 345. | 42.60 | Montgomery County R-II School District / 8,610 |
| 345. | 42.60 | Gilman City R-IV School District / 785 |
| 351. | 42.70 | Shelby County R-IV School District / 4,317 |
| 351. | 42.70 | Jefferson County R-VII School District / 5,999 |
| 351. | 42.70 | Holden R-III School District / 8,613 |
| 351. | 42.70 | Louisiana R-II School District / 4,373 |
| 351. | 42.70 | Miami R-I School District / 1,457 |
| 351. | 42.70 | New Franklin R-I School District / 2,646 |
| 351. | 42.70 | Monroe City R-I School District / 5,433 |
| 351. | 42.70 | Higbee R-VIII School District / 1,403 |
| 359. | 42.80 | West Nodaway County R-I School District / 1,788 |
| 359. | 42.80 | Gilliam C-4 School District / 351 |
| 359. | 42.80 | Lockwood R-I School District / 2,303 |
| 359. | 42.80 | Osage County R-I School District / 1,156 |
| 363. | 42.90 | Golden City School District / 1,688 |
| 364. | 43.00 | Wellington-Napoleon R-IX School District / 2,364 |
| 364. | 43.00 | Plainview R-VIII School District / 807 |
| 364. | 43.00 | Ridgeway R-V School District / 735 |
| 364. | 43.00 | Maries County R-II School District / 5,501 |
| 368. | 43.10 | Gasconade County R-II School District / 11,820 |
| 368. | 43.10 | Hale R-I School District / 800 |
| 368. | 43.10 | North Platte County R-I School District / 3,930 |
| 371. | 43.20 | Stewartsville C-2 School District / 1,271 |
| 371. | 43.20 | Cooper County C-4 School District / 933 |
| 371. | 43.20 | Southern Reynolds County R-IV School District / 3,041 |
| 371. | 43.20 | Fairview R-XI School District / 4,501 |
| 371. | 43.20 | North Pemiscot County R-I School District / 1,784 |
| 371. | 43.20 | Fair Play R-II School District / 2,514 |
| 371. | 43.20 | Houston R-I School District / 5,908 |
| 378. | 43.30 | Moniteau County C-1 School District / 1,409 |
| 378. | 43.30 | Kirkwood School District / 40,394 |
| 378. | 43.30 | Madison C-3 School District / 1,419 |
| 378. | 43.30 | Franklin County R-II School District / 1,383 |
| 382. | 43.40 | Parkway School District / 140,234 |
| 382. | 43.40 | Thayer R-II School District / 3,859 |
| 384. | 43.50 | Avenue City R-IX School District / 1,142 |
| 384. | 43.50 | North Daviess R-III School District / 772 |
| 384. | 43.50 | Linn County R-I School District / 1,580 |
| 384. | 43.50 | Tina-Avalon R-II School District / 917 |
| 384. | 43.50 | Union Star R-II School District / 988 |
| 384. | 43.50 | Sweet Springs R-VII School District / 2,869 |
| 390. | 43.60 | Slater School District / 2,071 |
| 390. | 43.60 | Kelso C-7 School District / 2,219 |
| 390. | 43.60 | Midway School District / 3,222 |
| 390. | 43.60 | Howard County R-II School District / 2,087 |
| 390. | 43.60 | Norborne R-VIII School District / 1,089 |
| 390. | 43.60 | Newburg R-II School District / 2,888 |
| 390. | 43.60 | Naylor R-II School District / 1,844 |
| 397. | 43.80 | Valley R-VI School District / 2,931 |
| 397. | 43.80 | Knox County R-I School District / 4,095 |
| 397. | 43.80 | Swedeborg R-III School District / 550 |
| 400. | 43.90 | Renick R-V School District / 1,210 |
| 400. | 43.90 | Grundy County R-V School District / 1,040 |
| 400. | 43.90 | Mirabile C-1 School District / 368 |
| 400. | 43.90 | Ash Grove R-IV School District / 4,966 |
| 400. | 43.90 | El Dorado Springs R-II School District / 8,193 |
| 400. | 43.90 | Niangua R-V School District / 1,941 |
| 406. | 44.00 | Mehlville School District / 95,468 |
| 406. | 44.00 | Delta R-V School District / 2,142 |
| 406. | 44.00 | Orearville R-IV School District / 400 |
| 409. | 44.10 | Bakersfield R-IV School District / 1,706 |
| 409. | 44.10 | North Wood R-IV School District / 1,949 |
| 411. | 44.20 | Ava R-I School District / 9,186 |
| 411. | 44.20 | Iron County C-4 School District / 2,879 |
| 411. | 44.20 | Holliday C-2 School District / 563 |
| 414. | 44.30 | Clinton County R-III School District / 5,430 |
| 414. | 44.30 | Osborn R-O School District / 771 |
| 414. | 44.30 | Hickory County R-I School District / 4,869 |
| 414. | 44.30 | Everton R-III School District / 1,195 |
| 414. | 44.30 | Callao C-8 School District / 645 |
| 419. | 44.40 | Camden County R-II School District / 2,872 |
| 420. | 44.50 | Green Forest R-II School District / 1,940 |
| 420. | 44.50 | Polo R-VII School District / 2,120 |
| 420. | 44.50 | Twin Rivers R-X School District / 5,956 |
| 423. | 44.60 | Miami R-I School District / 569 |
| 423. | 44.60 | Wellsville-Middletown R-I School District / 2,629 |
| 425. | 44.70 | Northwestern R-I School District / 1,032 |
| 425. | 44.70 | Galena R-II School District / 3,750 |
| 425. | 44.70 | Manes R-V School District / 570 |
| 425. | 44.70 | Adair County R-I School District / 1,872 |
| 429. | 44.80 | Winston R-VI School District / 1,225 |
| 430. | 44.90 | Dent-Phelps R-III School District / 2,807 |
| 430. | 44.90 | Maries County R-I School District / 4,026 |
| 430. | 44.90 | Zalma R-V School District / 1,394 |
| 430. | 44.90 | Community R-VI School District / 2,185 |
| 434. | 45.00 | Southwest Livingston County R-I School District / 1,211 |
| 434. | 45.00 | Strain-Japan R-XVI School District / 893 |
| 434. | 45.00 | Clearwater R-I School District / 6,644 |
| 434. | 45.00 | Ladue School District / 27,103 |
| 438. | 45.10 | Bosworth R-V School District / 692 |
| 439. | 45.20 | Alton R-IV School District / 4,750 |
| 439. | 45.20 | Morgan County R-II School District / 11,110 |
| 441. | 45.30 | Van Buren R-I School District / 3,004 |
| 441. | 45.30 | Albany R-III School District / 2,851 |
| 441. | 45.30 | Stet R-XV School District / 513 |
| 441. | 45.30 | Putnam County R-I School District / 4,843 |
| 441. | 45.30 | Laredo R-VII School District / 481 |
| 441. | 45.30 | Ralls County R-II School District / 5,269 |
| 441. | 45.30 | Nodaway-Holt R-VII School District / 1,574 |
| 441. | 45.30 | West Platte County R-II School District / 3,822 |
| 449. | 45.40 | Cabool School District / 5,620 |
| 449. | 45.40 | Salisbury R-IV School District / 3,510 |
| 449. | 45.40 | Macks Creek R-V School District / 2,450 |
| 452. | 45.50 | School of The Osage R-II School District / 12,804 |
| 452. | 45.50 | Marquand-Zion School District / 1,261 |
| 454. | 45.60 | South Holt County R-I School District / 1,865 |
| 454. | 45.60 | Summersville R-II School District / 3,058 |
| 454. | 45.60 | Revere C-3 School District / 619 |
| 454. | 45.60 | Success R-VI School District / 1,035 |
| 458. | 45.70 | Dadeville R-II School District / 960 |
| 458. | 45.70 | Green City R-I School District / 1,731 |
| 460. | 45.90 | Brunswick R-II School District / 1,603 |
| 460. | 45.90 | Tarkio R-I School District / 2,264 |
| 460. | 45.90 | Cole Camp R-I School District / 5,082 |
| 460. | 45.90 | Eminence R-I School District / 2,029 |
| 464. | 46.00 | Ballard R-II School District / 867 |
| 464. | 46.00 | North Mercer County R-III School District / 1,041 |
| 466. | 46.10 | Belleview R-III School District / 1,426 |
| 466. | 46.10 | Cassville R-IV School District / 11,765 |
| 466. | 46.10 | Rock Port R-II School District / 2,329 |
| 469. | 46.20 | Humansville R-IV School District / 3,108 |
| 469. | 46.20 | Stockton R-I School District / 6,931 |
| 469. | 46.20 | Greenville R-II School District / 5,601 |
| 472. | 46.30 | Ripley County R-III School District / 816 |
| 472. | 46.30 | Gasconade C-4 School District / 839 |
| 474. | 46.40 | Pleasant View R-VI School District / 449 |
| 474. | 46.40 | Oak Hill R-I School District / 1,457 |
| 474. | 46.40 | Delta C-7 School District / 906 |
| 477. | 46.50 | Dora R-III School District / 1,843 |
| 478. | 46.60 | Gasconade County R-I School District / 7,671 |
| 479. | 46.70 | Lindbergh R-VIII School District / 46,429 |
| 480. | 46.80 | Osceola School District / 3,251 |
| 480. | 46.80 | Holt County R-II School District / 1,802 |
| 480. | 46.80 | Montrose R-XIV School District / 795 |
| 483. | 47.00 | Lesterville R-IV School District / 1,295 |
| 484. | 47.20 | Fairfax R-III School District / 1,092 |
| 485. | 47.30 | Raymondville R-7 School District / 1,171 |
| 486. | 47.40 | Morgan County R-I School District / 5,309 |
| 487. | 47.50 | Worth County R-III School District / 2,216 |
| 488. | 47.60 | Macon County R-IV School District / 859 |
| 488. | 47.60 | Appleton City R-II School District / 2,330 |
| 488. | 47.60 | Hardeman R-X School District / 578 |
| 491. | 47.70 | Forsyth R-III School District / 8,646 |
| 492. | 47.80 | Greenfield R-IV School District / 3,250 |
| 492. | 47.80 | Centerville R-I School District / 800 |
| 494. | 47.90 | Cowgill R-VI School District / 386 |
| 495. | 48.00 | Weaubleau R-III School District / 2,616 |
| 496. | 48.10 | Gainesville R-V School District / 4,526 |
| 496. | 48.10 | Camdenton R-III School District / 31,430 |
| 498. | 48.20 | Paris R-II School District / 3,081 |
| 498. | 48.20 | Keytesville R-III School District / 1,286 |
| 498. | 48.20 | Davis R-XII School District / 487 |
| 501. | 48.50 | Cainsville R-I School District / 508 |
| 501. | 48.50 | Lakeland R-III School District / 3,211 |
| 503. | 48.70 | Thornfield R-I School District / 643 |
| 503. | 48.70 | Lincoln R-II School District / 3,945 |
| 505. | 48.90 | Craig R-III School District / 730 |
| 506. | 49.10 | Boncl R-X School District / 487 |
| 507. | 49.20 | Missouri City 56 School District / 519 |
| 507. | 49.20 | Bucklin R-II School District / 1,066 |
| 509. | 49.40 | Skyline R-II School District / 1,126 |
| 510. | 49.80 | Roscoe C-1 School District / 679 |
| 511. | 50.10 | Couch R-I School District / 1,228 |
| 512. | 50.70 | Mark Twain R-VIII School District / 665 |
| 513. | 52.50 | Reeds Spring R-IV School District / 16,588 |
| 514. | 52.70 | Leesville R-IX School District / 1,079 |
| 515. | 54.50 | Warsaw R-IX School District / 10,830 |
| 516. | 54.60 | Lutie R-VI School District / 1,635 |
| 517. | 55.10 | Blue Eye School District / 5,399 |
| 518. | 55.60 | Wheatland R-II School District / 3,011 |
| 519. | 57.80 | Hermitage R-IV School District / 3,069 |
| 520. | 58.00 | Climax Springs R-IV School District / 2,850 |
| 521. | 59.40 | Shell Knob 78 School District / 2,577 |
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.
