| Rank | Median Age ▲ | School District / Population |
| 1. | 23.30 | Knob Noster R-VIII School District / 8,796 |
| 2. | 23.90 | Waynesville R-VI Schools / 33,852 |
| 3. | 24.50 | Wellston School District / 2,613 |
| 4. | 24.70 | Maryville R-II Schools / 15,490 |
| 5. | 25.80 | Warrensburg R-VI School District / 25,403 |
| 6. | 26.10 | Kirksville R-III School District / 21,797 |
| 7. | 27.10 | Tri-County R-VII School District / 2,140 |
| 8. | 28.00 | Canton School District / 4,835 |
| 9. | 28.20 | Columbia Public Schools / 133,129 |
| 10. | 29.30 | Rolla 31 School District / 31,265 |
| 11. | 29.60 | Seymour R-II School District / 6,635 |
| 12. | 30.50 | Clayton School District / 19,788 |
| 13. | 30.60 | Riverview Gardens School District / 39,474 |
| 14. | 30.80 | Jennings School District / 17,982 |
| 14. | 30.80 | Jefferson C-123 School District / 813 |
| 16. | 30.90 | Avilla R-XIII School District / 1,440 |
| 17. | 31.00 | Bolivar R-I School District / 15,680 |
| 18. | 31.10 | Clarksburg C-2 School District / 849 |
| 19. | 31.30 | La Monte R-IV School District / 1,978 |
| 20. | 31.50 | Hickman Mills C-1 School District / 49,600 |
| 21. | 31.90 | Sturgeon R-V School District / 3,532 |
| 22. | 32.00 | Cooter R-IV School District / 879 |
| 23. | 32.30 | Cape Girardeau 63 School District / 37,975 |
| 23. | 32.30 | Moniteau County R-V School District / 949 |
| 25. | 32.40 | Exeter R-VI School District / 2,257 |
| 26. | 32.50 | Kingston K-14 School District / 5,919 |
| 27. | 32.80 | Hayti R-II School District / 4,092 |
| 28. | 33.10 | Dadeville R-II School District / 1,071 |
| 29. | 33.30 | Plato R-V School District / 3,666 |
| 29. | 33.30 | Willard School District / 23,433 |
| 29. | 33.30 | Webb City R-VII School District / 20,858 |
| 32. | 33.40 | Grain Valley R-V School District / 15,926 |
| 32. | 33.40 | Liberty Schools / 48,739 |
| 34. | 33.50 | Crocker School District / 3,420 |
| 34. | 33.50 | Wentzville R-IV School District / 64,299 |
| 34. | 33.50 | Caruthersville School District / 6,163 |
| 37. | 33.60 | Cowgill R-VI School District / 370 |
| 37. | 33.60 | Troy R-III School District / 31,506 |
| 39. | 33.70 | Cole County R-I School District / 4,178 |
| 39. | 33.70 | Fort Osage R-I School District / 25,536 |
| 41. | 33.80 | Pettis County R-XII School District / 1,194 |
| 42. | 33.90 | Central R-III School District / 11,577 |
| 43. | 34.00 | Crystal City 47 School District / 3,996 |
| 43. | 34.00 | St. Louis City School District / 318,809 |
| 43. | 34.00 | Scott City R-I School District / 5,550 |
| 46. | 34.10 | Hardin-Central C-2 School District / 1,071 |
| 47. | 34.30 | Fulton School District / 19,005 |
| 47. | 34.30 | Oak Grove R-VI School District / 10,852 |
| 47. | 34.30 | Neosho R-5 School District / 26,716 |
| 47. | 34.30 | Windsor C-1 School District / 17,643 |
| 47. | 34.30 | High Point R-III School District / 751 |
| 47. | 34.30 | East Prairie R-II School District / 5,655 |
| 53. | 34.40 | Normandy School District / 35,061 |
| 54. | 34.50 | Marshall School District / 14,839 |
| 55. | 34.70 | Belton 124 School District / 26,230 |
| 56. | 34.90 | Cole County R-II School District / 6,325 |
| 56. | 34.90 | Lawson R-XIV School District / 6,012 |
| 56. | 34.90 | Kansas City School District / 193,976 |
| 59. | 35.00 | Richards R-V School District / 3,268 |
| 59. | 35.00 | Elsberry R-II School District / 5,033 |
| 61. | 35.10 | Sparta R-III School District / 3,973 |
| 61. | 35.10 | Nixa School District / 26,560 |
| 61. | 35.10 | Springfield School District / 202,699 |
| 64. | 35.20 | Grandview C-4 School District / 31,671 |
| 64. | 35.20 | Winona R-III School District / 3,175 |
| 64. | 35.20 | Howell Valley R-I School District / 2,375 |
| 64. | 35.20 | Kingsville R-I School District / 2,123 |
| 64. | 35.20 | Gorin R-III School District / 483 |
| 69. | 35.40 | Carl Junction R-I School District / 15,162 |
| 69. | 35.40 | Blackwater R-II School District / 895 |
| 69. | 35.40 | Ozark R-VI School District / 28,503 |
| 69. | 35.40 | Pleasant Hope R-VI School District / 5,543 |
| 73. | 35.50 | Republic School District / 21,489 |
| 73. | 35.50 | Monett R-I School District / 13,037 |
| 75. | 35.80 | Halfway R-III School District / 2,489 |
| 75. | 35.80 | Bronaugh R-VII School District / 1,747 |
| 75. | 35.80 | Ritenour School District / 44,324 |
| 75. | 35.80 | Richwoods R-VII School District / 1,340 |
| 75. | 35.80 | Platte County R-III School District / 20,328 |
| 80. | 35.90 | New Bloomfield R-III School District / 4,226 |
| 80. | 35.90 | La Plata R-II School District / 2,717 |
| 80. | 35.90 | Holcomb R-III School District / 2,654 |
| 80. | 35.90 | Osage County R-II School District / 5,080 |
| 84. | 36.00 | Mount Vernon R-V School District / 9,136 |
| 84. | 36.00 | Purdy R-II School District / 3,956 |
| 84. | 36.00 | Fort Zumwalt R-II School District / 107,910 |
| 84. | 36.00 | Sunrise R-IX School District / 3,393 |
| 88. | 36.10 | Maysville R-I School District / 4,098 |
| 88. | 36.10 | Northeast Nodaway County R-V School District / 1,523 |
| 88. | 36.10 | Carthage R-IX School District / 22,931 |
| 88. | 36.10 | Delta R-V School District / 2,524 |
| 88. | 36.10 | Pike County R-III School District / 2,797 |
| 93. | 36.20 | Festus R-6 School District / 16,911 |
| 93. | 36.20 | Scott County R-IV School District / 5,546 |
| 95. | 36.30 | Fayette R-III School District / 4,730 |
| 95. | 36.30 | Fox C-6 School District / 68,022 |
| 95. | 36.30 | Joplin R-VIII School District / 59,399 |
| 95. | 36.30 | Iberia R-V School District / 4,928 |
| 99. | 36.40 | Sedalia 200 School District / 29,894 |
| 99. | 36.40 | Gentry County R-II School District / 2,066 |
| 99. | 36.40 | North Harrison R-III School District / 1,577 |
| 99. | 36.40 | St. Joseph School District / 79,663 |
| 99. | 36.40 | University City School District / 36,304 |
| 104. | 36.50 | Cooper County C-4 School District / 916 |
| 105. | 36.60 | Union R-XI School District / 19,850 |
| 105. | 36.60 | St. Clair R-XIII School District / 12,148 |
| 107. | 36.70 | Pleasant Hill R-III School District / 11,135 |
| 107. | 36.70 | Boonville School District / 11,654 |
| 107. | 36.70 | McDonald County R-I School District / 18,038 |
| 107. | 36.70 | East Newton County R-VI School District / 8,911 |
| 111. | 36.80 | Blue Springs R-IV School District / 75,631 |
| 111. | 36.80 | Moberly School District / 16,330 |
| 111. | 36.80 | Lee's Summit R-7 School District / 87,399 |
| 114. | 36.90 | North Kansas City School District / 122,557 |
| 114. | 36.90 | Bernie School District / 3,497 |
| 114. | 36.90 | Brentwood School District / 8,063 |
| 114. | 36.90 | Northwestern R-I School District / 909 |
| 118. | 37.00 | Hurley R-I School District / 1,897 |
| 118. | 37.00 | Maplewood-Richmond Heights School District / 14,529 |
| 118. | 37.00 | South Pemiscot Schools / 3,558 |
| 121. | 37.10 | Ferguson-Florissant School District / 70,611 |
| 121. | 37.10 | De Soto School District / 17,228 |
| 121. | 37.10 | Lebanon School District / 24,920 |
| 121. | 37.10 | Mirabile C-1 School District / 367 |
| 121. | 37.10 | Livingston County R-III School District / 686 |
| 126. | 37.20 | Northwest R-I School District / 45,192 |
| 126. | 37.20 | Southern Boone County R-I School District / 7,779 |
| 126. | 37.20 | Jefferson City Public Schools / 70,250 |
| 129. | 37.30 | Scott County Central Schools / 2,006 |
| 129. | 37.30 | Green Ridge R-VIII School District / 2,480 |
| 129. | 37.30 | Park Hill School District / 61,509 |
| 132. | 37.40 | Centralia R-VI School District / 7,640 |
| 133. | 37.50 | Mountain Grove R-III School District / 9,655 |
| 133. | 37.50 | Norwood R-I School District / 2,317 |
| 133. | 37.50 | Kearney R-I School District / 18,620 |
| 133. | 37.50 | Atlanta C-3 Schools / 1,316 |
| 133. | 37.50 | Hazelwood School District / 123,197 |
| 133. | 37.50 | Lathrop R-II School District / 4,842 |
| 133. | 37.50 | Kennett 39 School District / 11,110 |
| 133. | 37.50 | New Haven School District / 2,798 |
| 133. | 37.50 | Northeast Randolph County R-IV School District / 1,860 |
| 142. | 37.60 | North Nodaway County R-VI School District / 1,248 |
| 142. | 37.60 | Hancock Place School District / 7,641 |
| 142. | 37.60 | Raymore-Peculiar R-II School District / 31,234 |
| 145. | 37.70 | Renick R-V School District / 1,524 |
| 145. | 37.70 | Hollister R-V School District / 10,742 |
| 145. | 37.70 | Sullivan School District / 11,606 |
| 145. | 37.70 | Moniteau County R-I School District / 6,962 |
| 145. | 37.70 | Oran R-III School District / 2,306 |
| 145. | 37.70 | Valley Park School District / 8,294 |
| 151. | 37.80 | Senath-Hornersville C-8 School District / 4,697 |
| 151. | 37.80 | St. Charles County R-V School District / 10,031 |
| 151. | 37.80 | Marquand-Zion School District / 1,643 |
| 154. | 37.90 | Bunker R-III School District / 1,669 |
| 155. | 38.00 | Winfield School District / 9,961 |
| 155. | 38.00 | Wellington-Napoleon R-IX School District / 2,522 |
| 155. | 38.00 | Ripley County R-III School District / 976 |
| 155. | 38.00 | Meramec Valley R-III School District / 22,470 |
| 155. | 38.00 | Bevier C-4 School District / 1,539 |
| 155. | 38.00 | North Callaway R-I School District / 6,700 |
| 161. | 38.10 | Adair County R-II School District / 1,497 |
| 161. | 38.10 | Leeton R-X School District / 2,146 |
| 161. | 38.10 | Drexel R-IV School District / 1,857 |
| 161. | 38.10 | Moniteau County R-VI School District / 5,336 |
| 161. | 38.10 | Fair Grove R-10 School District / 5,000 |
| 166. | 38.20 | New York R-IV School District / 227 |
| 166. | 38.20 | Boone County R-IV School District / 6,889 |
| 166. | 38.20 | Braymer C-4 School District / 1,838 |
| 166. | 38.20 | Van-Far School District / 5,748 |
| 170. | 38.30 | Clever R-V School District / 5,128 |
| 170. | 38.30 | Hannibal School District / 22,444 |
| 170. | 38.30 | Cass County R-V School District / 2,925 |
| 170. | 38.30 | North Andrew County R-VI School District / 1,778 |
| 170. | 38.30 | Spickard R-II School District / 607 |
| 170. | 38.30 | Pettis County R-V School District / 2,186 |
| 176. | 38.40 | Perry County 32 School District / 17,662 |
| 176. | 38.40 | Strain-Japan R-XVI School District / 881 |
| 176. | 38.40 | Lonedell R-XIV School District / 3,064 |
| 176. | 38.40 | St. Charles R-VI School District / 54,734 |
| 176. | 38.40 | North St. Francis County R-I School District / 19,721 |
| 176. | 38.40 | Hume R-VIII School District / 757 |
| 176. | 38.40 | Crane R-III School District / 4,244 |
| 183. | 38.50 | Aurora R-8 School District / 10,592 |
| 183. | 38.50 | West Plains R-VII School District / 12,939 |
| 183. | 38.50 | Milan C-2 School District / 3,653 |
| 183. | 38.50 | Marshfield R-I School District / 17,943 |
| 183. | 38.50 | Warren County R-III School District / 18,630 |
| 183. | 38.50 | Francis Howell School District / 112,417 |
| 189. | 38.60 | Liberal R-II School District / 3,104 |
| 189. | 38.60 | Poplar Bluff R-I School District / 32,787 |
| 189. | 38.60 | Southwest R-V School District / 4,240 |
| 189. | 38.60 | Bowling Green R-I School District / 11,991 |
| 193. | 38.70 | Gallatin R-V School District / 3,386 |
| 193. | 38.70 | Scott County R-II School District / 3,782 |
| 193. | 38.70 | St. Elizabeth R-IV School District / 1,346 |
| 193. | 38.70 | Dunklin R-V School District / 9,372 |
| 197. | 38.80 | Grundy County R-V School District / 1,040 |
| 197. | 38.80 | Billings R-IV School District / 2,932 |
| 197. | 38.80 | Affton School District / 26,360 |
| 200. | 38.90 | Bloomfield School District / 4,477 |
| 200. | 38.90 | Farmington R-7 School District / 27,218 |
| 200. | 38.90 | North Wood R-IV School District / 1,992 |
| 200. | 38.90 | Zalma R-V School District / 1,792 |
| 200. | 38.90 | Jackson R-II School District / 28,804 |
| 205. | 39.00 | Crawford County R-2 School District / 9,085 |
| 205. | 39.00 | Clarkton C-4 School District / 1,783 |
| 205. | 39.00 | Johnson County R-VII School District / 2,964 |
| 208. | 39.10 | Malden R-I School District / 6,348 |
| 208. | 39.10 | Wright City R-II School District / 9,790 |
| 208. | 39.10 | Shawnee R-III School District / 765 |
| 208. | 39.10 | Tina-Avalon R-II School District / 929 |
| 208. | 39.10 | Thayer R-II School District / 4,528 |
| 208. | 39.10 | Hillsboro R-III School District / 20,747 |
| 208. | 39.10 | Buchanan County R-IV School District / 2,199 |
| 208. | 39.10 | Moniteau County C-1 School District / 1,380 |
| 208. | 39.10 | Dixon R-I School District / 5,863 |
| 217. | 39.20 | Lamar R-I School District / 7,543 |
| 217. | 39.20 | Mid-Buchanan County R-V School District / 4,366 |
| 217. | 39.20 | Sherwood Cass R-VIII School District / 4,973 |
| 217. | 39.20 | South Iron County R-I School District / 2,060 |
| 217. | 39.20 | Luray 33 School District / 517 |
| 217. | 39.20 | Harrisonville R-IX School District / 13,996 |
| 217. | 39.20 | Sheldon R-VIII School District / 1,232 |
| 224. | 39.30 | South Callaway R-II Schools / 4,639 |
| 224. | 39.30 | Stet R-XV School District / 547 |
| 224. | 39.30 | Webster Groves School District / 31,515 |
| 224. | 39.30 | Raytown C-2 School District / 57,749 |
| 224. | 39.30 | Butler R-V School District / 6,495 |
| 229. | 39.40 | Miller R-II School District / 4,186 |
| 229. | 39.40 | Independence Public Schools / 93,240 |
| 229. | 39.40 | Polo R-VII School District / 2,097 |
| 232. | 39.50 | Laclede County C-5 School District / 4,123 |
| 232. | 39.50 | Avenue City R-IX School District / 1,121 |
| 232. | 39.50 | Taneyville R-II School District / 1,549 |
| 232. | 39.50 | Licking School District / 6,421 |
| 236. | 39.60 | Rockwood School District / 114,214 |
| 236. | 39.60 | Leopold R-III School District / 1,036 |
| 236. | 39.60 | Galena R-II School District / 3,177 |
| 236. | 39.60 | Verona R-VII School District / 2,508 |
| 236. | 39.60 | Shelby County C-1 School District / 2,153 |
| 241. | 39.70 | Schuyler County R-I School District / 4,726 |
| 241. | 39.70 | Sikeston School District / 20,780 |
| 241. | 39.70 | Kirbyville R-VI School District / 2,695 |
| 244. | 39.80 | Willow Springs R-IV School District / 7,942 |
| 244. | 39.80 | Branson R-IV School District / 25,292 |
| 244. | 39.80 | Meadville R-IV School District / 1,205 |
| 244. | 39.80 | Washington School District / 31,281 |
| 244. | 39.80 | Odessa R-VII School District / 11,650 |
| 244. | 39.80 | Osage County R-III School District / 6,594 |
| 250. | 39.90 | Community R-VI School District / 2,268 |
| 250. | 39.90 | Gideon School District / 1,711 |
| 250. | 39.90 | Salem R-80 School District / 6,819 |
| 250. | 39.90 | Miami R-I School District / 1,316 |
| 250. | 39.90 | Middle Grove C-1 School District / 646 |
| 250. | 39.90 | Center 58 School District / 25,604 |
| 250. | 39.90 | Potosi R-III School District / 12,832 |
| 250. | 39.90 | Dallas County R-I School District / 13,394 |
| 258. | 40.00 | Howard County R-II School District / 2,675 |
| 258. | 40.00 | Lafayette County C-1 School District / 6,627 |
| 258. | 40.00 | Crawford County R-I School District / 6,906 |
| 258. | 40.00 | Strafford R-VI School District / 5,914 |
| 258. | 40.00 | Portageville School District / 4,060 |
| 263. | 40.10 | Nevada R-V School District / 14,877 |
| 264. | 40.20 | Neelyville R-IV School District / 3,497 |
| 264. | 40.20 | Cameron R-I School District / 12,904 |
| 264. | 40.20 | Bradleyville R-I School District / 1,067 |
| 264. | 40.20 | Prairie Home R-V School District / 1,199 |
| 264. | 40.20 | Cole County R-V School District / 4,580 |
| 264. | 40.20 | New Madrid County R-I School District / 9,827 |
| 264. | 40.20 | Arcadia Valley R-II School District / 6,099 |
| 271. | 40.30 | Fredericktown R-I School District / 10,506 |
| 271. | 40.30 | Union Star R-II School District / 1,031 |
| 271. | 40.30 | Rich Hill R-IV School District / 2,612 |
| 274. | 40.40 | North Pemiscot County R-I School District / 1,817 |
| 274. | 40.40 | Mansfield R-IV School District / 4,199 |
| 274. | 40.40 | Mountain View-Birch Tree R-III School District / 6,697 |
| 274. | 40.40 | Smithville School District / 10,785 |
| 278. | 40.50 | Spokane R-VII School District / 4,727 |
| 278. | 40.50 | East Lynne 40 School District / 1,410 |
| 280. | 40.60 | Mexico 59 School District / 14,740 |
| 280. | 40.60 | Concordia School District / 4,142 |
| 280. | 40.60 | Jefferson County R-VII School District / 6,485 |
| 280. | 40.60 | Bismarck R-V School District / 3,596 |
| 284. | 40.70 | Chilhowee R-IV School District / 1,050 |
| 284. | 40.70 | Green Forest R-II School District / 2,251 |
| 284. | 40.70 | Grandview R-II School District / 4,716 |
| 284. | 40.70 | Harrisburg R-VIII School District / 3,112 |
| 288. | 40.80 | Everton R-III School District / 1,352 |
| 288. | 40.80 | New Franklin R-I School District / 2,611 |
| 288. | 40.80 | Walnut Grove R-V School District / 1,936 |
| 291. | 40.90 | Linn County R-I School District / 1,617 |
| 291. | 40.90 | Cabool School District / 5,863 |
| 291. | 40.90 | Excelsior Springs 40 School District / 16,858 |
| 294. | 41.00 | Savannah R-III School District / 13,401 |
| 294. | 41.00 | Montgomery County R-II School District / 8,621 |
| 294. | 41.00 | Chillicothe R-II School District / 12,476 |
| 297. | 41.10 | South Nodaway County R-IV School District / 828 |
| 297. | 41.10 | Westran R-I School District / 3,774 |
| 297. | 41.10 | Chadwick R-I School District / 1,393 |
| 297. | 41.10 | East Buchanan County C-1 School District / 4,562 |
| 297. | 41.10 | Putnam County R-I School District / 4,669 |
| 302. | 41.20 | Palmyra R-I School District / 6,488 |
| 302. | 41.20 | Fairfax R-III School District / 1,162 |
| 304. | 41.30 | Davis R-XII School District / 565 |
| 304. | 41.30 | Callao C-8 School District / 684 |
| 304. | 41.30 | Diamond R-IV School District / 5,868 |
| 304. | 41.30 | Doniphan R-I School District / 10,279 |
| 304. | 41.30 | Richmond R-XVI School District / 10,109 |
| 309. | 41.40 | Gasconade County R-II School District / 11,563 |
| 309. | 41.40 | Madison C-3 School District / 1,471 |
| 309. | 41.40 | West St. Francis County R-IV School District / 5,527 |
| 309. | 41.40 | Bayless School District / 12,751 |
| 309. | 41.40 | Dexter R-XI School District / 12,529 |
| 314. | 41.50 | Seneca R-VII School District / 7,890 |
| 314. | 41.50 | Richland R-I School District / 1,930 |
| 314. | 41.50 | North Daviess R-III School District / 881 |
| 317. | 41.60 | Silex R-I School District / 2,598 |
| 317. | 41.60 | Lone Jack C-6 School District / 2,779 |
| 317. | 41.60 | Maries County R-I School District / 4,372 |
| 320. | 41.70 | Meadow Heights R-II School District / 3,822 |
| 320. | 41.70 | Strasburg C-3 School District / 950 |
| 322. | 41.80 | Niangua R-V School District / 1,934 |
| 322. | 41.80 | Spring Bluff R-XV School District / 1,906 |
| 322. | 41.80 | West Nodaway County R-I School District / 1,870 |
| 322. | 41.80 | Clark County R-I School District / 5,908 |
| 326. | 41.90 | Marion County R-II School District / 1,319 |
| 326. | 41.90 | Nell Holcomb R-IV School District / 2,959 |
| 326. | 41.90 | Eldon R-I School District / 11,898 |
| 329. | 42.00 | Van Buren R-I School District / 2,560 |
| 329. | 42.00 | East Carter County R-II School District / 4,328 |
| 331. | 42.10 | Adrian County R-III School District / 4,315 |
| 331. | 42.10 | Pattonville School District / 41,590 |
| 331. | 42.10 | Carrollton R-VII School District / 5,539 |
| 331. | 42.10 | Wheaton R-III School District / 1,892 |
| 335. | 42.20 | Orrick R-XI School District / 1,920 |
| 335. | 42.20 | Fordland R-III School District / 3,470 |
| 335. | 42.20 | Name N/A / 97,299 |
| 338. | 42.30 | Ava R-I School District / 8,624 |
| 338. | 42.30 | Sarcoxie R-II School District / 3,407 |
| 338. | 42.30 | Swedeborg R-III School District / 583 |
| 341. | 42.40 | Charleston R-I School District / 8,488 |
| 342. | 42.50 | Naylor R-II School District / 1,900 |
| 342. | 42.50 | Holden R-III School District / 8,290 |
| 342. | 42.50 | Miami R-I School District / 561 |
| 345. | 42.70 | Smithton R-VI School District / 2,835 |
| 345. | 42.70 | Eminence R-I School District / 2,042 |
| 345. | 42.70 | Hamilton R-II School District / 4,041 |
| 348. | 42.80 | Phelps County R-III School District / 1,899 |
| 348. | 42.80 | Junction Hill C-12 School District / 1,857 |
| 348. | 42.80 | Calhoun R-VIII School District / 1,050 |
| 351. | 42.90 | Mehlville School District / 93,423 |
| 351. | 42.90 | Pilot Grove C-4 School District / 1,889 |
| 351. | 42.90 | King City R-I School District / 1,874 |
| 351. | 42.90 | Marion County Early R-V School District / 3,913 |
| 351. | 42.90 | Weaubleau R-III School District / 3,163 |
| 351. | 42.90 | Henry County R-I School District / 4,443 |
| 357. | 43.00 | Laquey R-V School District / 3,860 |
| 357. | 43.00 | West Platte County R-II School District / 3,884 |
| 357. | 43.00 | Green City R-I School District / 2,012 |
| 357. | 43.00 | Southland School District / 2,127 |
| 357. | 43.00 | Franklin County R-II School District / 1,546 |
| 357. | 43.00 | Montrose R-XIV School District / 922 |
| 363. | 43.10 | Scotland County R-I School District / 4,355 |
| 363. | 43.10 | Westview C-6 School District / 1,155 |
| 363. | 43.10 | Holliday C-2 School District / 499 |
| 363. | 43.10 | Ste. Genevieve County R-II School District / 15,248 |
| 363. | 43.10 | Newtown-Harris R-III School District / 514 |
| 368. | 43.20 | Princeton R-V School District / 2,488 |
| 368. | 43.20 | Parkway School District / 138,429 |
| 370. | 43.30 | Northeast Vernon County R-I School District / 2,138 |
| 370. | 43.30 | Midway School District / 3,404 |
| 372. | 43.40 | Stockton R-I School District / 7,562 |
| 372. | 43.40 | Bell City R-II School District / 1,409 |
| 372. | 43.40 | Bakersfield R-IV School District / 1,505 |
| 375. | 43.50 | South Holt County R-I School District / 1,742 |
| 375. | 43.50 | Bucklin R-II School District / 1,065 |
| 375. | 43.50 | Woodland R-IV School District / 5,413 |
| 375. | 43.50 | Lockwood R-I School District / 2,308 |
| 379. | 43.60 | Knox County R-I School District / 4,089 |
| 379. | 43.60 | Kirkwood School District / 40,547 |
| 379. | 43.60 | Brookfield R-III School District / 6,521 |
| 382. | 43.70 | Golden City School District / 1,823 |
| 382. | 43.70 | St. James R-I School District / 9,678 |
| 382. | 43.70 | Gilman City R-IV School District / 824 |
| 385. | 43.80 | Greene County R-VIII School District / 11,819 |
| 385. | 43.80 | Pierce City R-VI School District / 4,406 |
| 387. | 43.90 | Osage County R-I School District / 1,266 |
| 387. | 43.90 | Ridgeway R-V School District / 740 |
| 387. | 43.90 | Lexington R-V School District / 5,818 |
| 390. | 44.00 | Monroe City R-I School District / 4,716 |
| 390. | 44.00 | Trenton R-IX School District / 7,627 |
| 390. | 44.00 | Fair Play R-II School District / 2,447 |
| 390. | 44.00 | Laclede County R-I School District / 3,473 |
| 390. | 44.00 | Hardeman R-X School District / 464 |
| 390. | 44.00 | Lesterville R-IV School District / 1,169 |
| 390. | 44.00 | Pulaski County R-IV School District / 3,437 |
| 397. | 44.10 | Jasper County R-V School District / 2,775 |
| 397. | 44.10 | Santa Fe R-X School District / 2,451 |
| 399. | 44.20 | Macks Creek R-V School District / 2,487 |
| 399. | 44.20 | Summersville R-II School District / 3,132 |
| 401. | 44.30 | Clinton School District / 11,644 |
| 401. | 44.30 | Southern Reynolds County R-IV School District / 3,105 |
| 401. | 44.30 | Clearwater R-I School District / 7,087 |
| 401. | 44.30 | Gilliam C-4 School District / 385 |
| 401. | 44.30 | Morgan County R-II School District / 11,533 |
| 406. | 44.40 | Shelby County R-IV School District / 4,408 |
| 406. | 44.40 | Clinton County R-III School District / 4,942 |
| 406. | 44.40 | Oak Ridge R-VI School District / 2,011 |
| 406. | 44.40 | Ladue School District / 26,799 |
| 410. | 44.50 | South Harrison School District / 5,490 |
| 410. | 44.50 | Brunswick R-II School District / 1,933 |
| 410. | 44.50 | Adair County R-I School District / 1,788 |
| 413. | 44.60 | Salisbury R-IV School District / 3,104 |
| 413. | 44.60 | Hudson R-IX School District / 353 |
| 413. | 44.60 | North Platte County R-I School District / 3,951 |
| 416. | 44.70 | Louisiana R-II School District / 4,167 |
| 416. | 44.70 | Boncl R-X School District / 451 |
| 416. | 44.70 | Lewis County C-1 School District / 6,182 |
| 416. | 44.70 | Ralls County R-II School District / 5,779 |
| 416. | 44.70 | Craig R-III School District / 865 |
| 416. | 44.70 | Steelville School District / 5,369 |
| 416. | 44.70 | Bosworth R-V School District / 731 |
| 416. | 44.70 | Greenville R-II School District / 5,211 |
| 424. | 44.80 | Fairview R-XI School District / 4,368 |
| 424. | 44.80 | Paris R-II School District / 3,480 |
| 424. | 44.80 | Marceline R-V School District / 3,810 |
| 427. | 44.90 | North Mercer County R-III School District / 1,172 |
| 428. | 45.00 | Wellsville-Middletown R-I School District / 2,846 |
| 429. | 45.10 | El Dorado Springs R-II School District / 7,364 |
| 429. | 45.10 | Alton R-IV School District / 4,085 |
| 429. | 45.10 | Macon County R-I School District / 8,353 |
| 429. | 45.10 | Otterville R-VI School District / 1,422 |
| 429. | 45.10 | Southwest Livingston County R-I School District / 1,208 |
| 434. | 45.20 | Rock Port R-II School District / 2,341 |
| 434. | 45.20 | Puxico R-VIII School District / 4,836 |
| 436. | 45.30 | School of The Osage R-II School District / 11,650 |
| 436. | 45.30 | Kelso C-7 School District / 2,030 |
| 438. | 45.50 | Oak Hill R-I School District / 1,663 |
| 439. | 45.60 | Sweet Springs R-VII School District / 2,851 |
| 439. | 45.60 | Pattonsburg R-II School District / 1,035 |
| 439. | 45.60 | Cassville R-IV School District / 11,199 |
| 442. | 45.70 | Appleton City R-II School District / 2,480 |
| 442. | 45.70 | Success R-VI School District / 924 |
| 442. | 45.70 | Malta Bend R-V School District / 673 |
| 445. | 45.80 | Nodaway-Holt R-VII School District / 1,800 |
| 445. | 45.80 | Ripley County R-IV School District / 873 |
| 445. | 45.80 | Pleasant View R-VI School District / 452 |
| 448. | 46.00 | Camden County R-II School District / 2,673 |
| 448. | 46.00 | Delta C-7 School District / 982 |
| 450. | 46.10 | Iron County C-4 School District / 3,024 |
| 450. | 46.10 | Osborn R-O School District / 689 |
| 450. | 46.10 | Stewartsville C-2 School District / 1,224 |
| 450. | 46.10 | Norborne R-VIII School District / 1,191 |
| 454. | 46.20 | Lindbergh R-VIII School District / 46,476 |
| 454. | 46.20 | Houston R-I School District / 5,649 |
| 454. | 46.20 | Advance R-IV School District / 3,233 |
| 457. | 46.30 | Oregon-Howell R-III School District / 1,680 |
| 457. | 46.30 | Kingston 42 School District / 389 |
| 459. | 46.40 | Newburg R-II School District / 2,791 |
| 459. | 46.40 | Albany R-III School District / 3,045 |
| 459. | 46.40 | Ash Grove R-IV School District / 4,544 |
| 459. | 46.40 | Campbell R-II School District / 3,626 |
| 459. | 46.40 | Lincoln R-II School District / 4,204 |
| 464. | 46.50 | Laredo R-VII School District / 479 |
| 464. | 46.50 | Gasconade County R-I School District / 7,709 |
| 464. | 46.50 | Morgan County R-I School District / 5,357 |
| 467. | 46.60 | Pemiscot County R-3 School District / 873 |
| 467. | 46.60 | Risco R-II School District / 673 |
| 467. | 46.60 | Glenwood R-VIII School District / 2,467 |
| 470. | 46.70 | Hartville R-II School District / 4,355 |
| 471. | 46.80 | Gainesville R-V School District / 4,792 |
| 471. | 46.80 | Tarkio R-I School District / 2,308 |
| 471. | 46.80 | Holt County R-II School District / 1,841 |
| 474. | 47.00 | Twin Rivers R-X School District / 5,557 |
| 474. | 47.00 | Valley R-VI School District / 2,878 |
| 476. | 47.10 | Maries County R-II School District / 5,046 |
| 476. | 47.10 | Slater School District / 2,336 |
| 478. | 47.20 | Cole Camp R-I School District / 4,632 |
| 479. | 47.30 | Worth County R-III School District / 2,182 |
| 480. | 47.40 | Miller County R-III School District / 1,631 |
| 481. | 47.50 | Manes R-V School District / 813 |
| 481. | 47.50 | Hickory County R-I School District / 4,936 |
| 483. | 47.70 | Forsyth R-III School District / 7,496 |
| 484. | 47.80 | Camdenton R-III School District / 29,639 |
| 484. | 47.80 | Skyline R-II School District / 1,347 |
| 484. | 47.80 | Altenburg 48 School District / 1,159 |
| 484. | 47.80 | Leesville R-IX School District / 1,021 |
| 488. | 48.30 | Lakeland R-III School District / 2,659 |
| 489. | 48.40 | Breckenridge R-I School District / 450 |
| 489. | 48.40 | Hale R-I School District / 918 |
| 489. | 48.40 | Marionville R-IX School District / 3,995 |
| 492. | 48.50 | Raymondville R-7 School District / 1,002 |
| 493. | 48.60 | Centerville R-I School District / 826 |
| 494. | 49.00 | Gasconade C-4 School District / 823 |
| 494. | 49.00 | Thornfield R-I School District / 655 |
| 496. | 49.20 | Winston R-VI School District / 1,107 |
| 496. | 49.20 | Roscoe C-1 School District / 611 |
| 496. | 49.20 | Dent-Phelps R-III School District / 2,271 |
| 499. | 49.80 | Keytesville R-III School District / 1,122 |
| 500. | 50.00 | Plainview R-VIII School District / 1,205 |
| 501. | 50.40 | Cainsville R-I School District / 438 |
| 501. | 50.40 | Dora R-III School District / 1,696 |
| 501. | 50.40 | Orearville R-IV School District / 366 |
| 501. | 50.40 | Ballard R-II School District / 734 |
| 501. | 50.40 | Greenfield R-IV School District / 3,282 |
| 506. | 50.50 | Missouri City 56 School District / 519 |
| 507. | 50.60 | Higbee R-VIII School District / 1,422 |
| 507. | 50.60 | Revere C-3 School District / 630 |
| 509. | 50.80 | Osceola School District / 3,024 |
| 510. | 50.90 | Macon County R-IV School District / 935 |
| 511. | 51.00 | Belleview R-III School District / 1,251 |
| 512. | 51.30 | Mark Twain R-VIII School District / 514 |
| 513. | 51.40 | Lutie R-VI School District / 1,608 |
| 514. | 51.50 | Reeds Spring R-IV School District / 16,801 |
| 515. | 51.60 | Humansville R-IV School District / 3,131 |
| 516. | 53.20 | Warsaw R-IX School District / 10,858 |
| 517. | 53.60 | Climax Springs R-IV School District / 3,368 |
| 518. | 54.10 | Blue Eye School District / 5,512 |
| 519. | 56.20 | Couch R-I School District / 1,110 |
| 520. | 59.50 | Wheatland R-II School District / 2,727 |
| 521. | 59.70 | Hermitage R-IV School District / 2,915 |
| 522. | 61.00 | Shell Knob 78 School District / 2,388 |
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.
