| Rank | Percentage of Population Age 55 to 64 ▼ | School District / Population |
| 1. | 32.0% | Shell Knob 78 School District / 2,759 |
| 2. | 26.3% | Climax Springs R-IV School District / 2,309 |
| 3. | 24.7% | Missouri City 56 School District / 485 |
| 4. | 24.2% | Raymondville R-7 School District / 1,079 |
| 5. | 22.9% | Blackwater R-II School District / 1,019 |
| 6. | 22.6% | Macon County R-IV School District / 857 |
| 7. | 22.2% | Montrose R-XIV School District / 774 |
| 8. | 21.5% | Swedeborg R-III School District / 550 |
| 9. | 21.1% | Avenue City R-IX School District / 984 |
| 10. | 20.8% | Oak Ridge R-VI School District / 2,216 |
| 11. | 20.7% | Laredo R-VII School District / 511 |
| 12. | 20.4% | Lincoln R-II School District / 3,969 |
| 13. | 20.0% | Oregon-Howell R-III School District / 1,551 |
| 14. | 19.8% | Ripley County R-III School District / 1,013 |
| 15. | 19.8% | Grandview R-II School District / 4,571 |
| 16. | 19.6% | Cainsville R-I School District / 438 |
| 17. | 19.5% | Galena R-II School District / 4,021 |
| 18. | 19.5% | Gilman City R-IV School District / 765 |
| 19. | 19.3% | Madison C-3 School District / 1,593 |
| 20. | 19.3% | Reeds Spring R-IV School District / 16,061 |
| 21. | 19.3% | Fair Play R-II School District / 2,431 |
| 22. | 19.0% | Keytesville R-III School District / 1,161 |
| 23. | 18.9% | Higbee R-VIII School District / 1,277 |
| 24. | 18.9% | Ridgeway R-V School District / 764 |
| 25. | 18.8% | Bosworth R-V School District / 605 |
| 26. | 18.7% | Billings R-IV School District / 2,699 |
| 27. | 18.6% | School of The Osage R-II School District / 12,016 |
| 28. | 18.5% | Gasconade C-4 School District / 805 |
| 29. | 18.5% | Hermitage R-IV School District / 3,014 |
| 30. | 18.4% | Boncl R-X School District / 446 |
| 31. | 18.4% | Hickory County R-I School District / 4,837 |
| 32. | 18.1% | Newtown-Harris R-III School District / 425 |
| 32. | 18.1% | Oak Hill R-I School District / 1,672 |
| 34. | 18.1% | Couch R-I School District / 1,144 |
| 35. | 18.0% | Humansville R-IV School District / 2,752 |
| 36. | 17.9% | Dora R-III School District / 1,920 |
| 37. | 17.9% | Wheatland R-II School District / 2,974 |
| 38. | 17.8% | Marionville R-IX School District / 4,086 |
| 39. | 17.7% | Cole Camp R-I School District / 5,152 |
| 40. | 17.7% | Phelps County R-III School District / 1,892 |
| 41. | 17.7% | Manes R-V School District / 735 |
| 41. | 17.7% | New Franklin R-I School District / 2,600 |
| 43. | 17.7% | Junction Hill C-12 School District / 1,806 |
| 44. | 17.6% | Belleview R-III School District / 1,304 |
| 45. | 17.6% | Pulaski County R-IV School District / 3,524 |
| 46. | 17.5% | Hudson R-IX School District / 371 |
| 47. | 17.5% | Macks Creek R-V School District / 2,889 |
| 48. | 17.4% | St. Elizabeth R-IV School District / 1,251 |
| 49. | 17.3% | Fairview R-XI School District / 3,840 |
| 50. | 17.3% | Southern Boone County R-I School District / 8,399 |
| 51. | 17.3% | Greenfield R-IV School District / 2,778 |
| 52. | 17.2% | Hardeman R-X School District / 471 |
| 52. | 17.2% | Johnson County R-VII School District / 3,040 |
| 54. | 17.2% | Camdenton R-III School District / 31,390 |
| 55. | 17.1% | Lesterville R-IV School District / 1,111 |
| 55. | 17.1% | Warsaw R-IX School District / 10,670 |
| 57. | 17.1% | Osborn R-O School District / 733 |
| 58. | 17.0% | Kingston K-14 School District / 5,271 |
| 58. | 17.0% | Iron County C-4 School District / 2,938 |
| 60. | 17.0% | Weaubleau R-III School District / 2,613 |
| 61. | 16.9% | Taneyville R-II School District / 1,633 |
| 62. | 16.8% | Norborne R-VIII School District / 1,094 |
| 62. | 16.8% | Northeast Vernon County R-I School District / 1,909 |
| 64. | 16.8% | Gainesville R-V School District / 4,700 |
| 65. | 16.8% | Delta C-7 School District / 1,000 |
| 66. | 16.8% | Bakersfield R-IV School District / 1,628 |
| 67. | 16.7% | Everton R-III School District / 1,465 |
| 68. | 16.6% | Southwest Livingston County R-I School District / 1,176 |
| 68. | 16.6% | Morgan County R-I School District / 5,482 |
| 70. | 16.5% | Dixon R-I School District / 5,341 |
| 71. | 16.5% | Van Buren R-I School District / 2,839 |
| 72. | 16.5% | Bradleyville R-I School District / 1,110 |
| 73. | 16.5% | Sweet Springs R-VII School District / 2,769 |
| 74. | 16.5% | Woodland R-IV School District / 5,226 |
| 75. | 16.4% | Laclede County C-5 School District / 3,933 |
| 76. | 16.4% | South Callaway R-II Schools / 4,178 |
| 76. | 16.4% | Craig R-III School District / 676 |
| 78. | 16.4% | Lutie R-VI School District / 1,500 |
| 79. | 16.4% | Hurley R-I School District / 1,782 |
| 80. | 16.4% | Bell City R-II School District / 1,424 |
| 81. | 16.3% | Eminence R-I School District / 2,160 |
| 82. | 16.3% | Houston R-I School District / 5,868 |
| 83. | 16.2% | Ralls County R-II School District / 5,553 |
| 83. | 16.2% | Roscoe C-1 School District / 579 |
| 83. | 16.2% | Fairfax R-III School District / 1,097 |
| 86. | 16.2% | Ava R-I School District / 8,860 |
| 87. | 16.2% | Slater School District / 2,352 |
| 88. | 16.1% | Thornfield R-I School District / 626 |
| 88. | 16.1% | Middle Grove C-1 School District / 775 |
| 90. | 16.1% | Lewis County C-1 School District / 6,509 |
| 91. | 16.1% | Blue Eye School District / 5,297 |
| 92. | 16.0% | Pleasant View R-VI School District / 425 |
| 93. | 16.0% | Miami R-I School District / 1,282 |
| 94. | 16.0% | Valley R-VI School District / 3,089 |
| 95. | 15.9% | North Platte County R-I School District / 4,157 |
| 96. | 15.9% | Summersville R-II School District / 2,841 |
| 97. | 15.9% | Franklin County R-II School District / 1,498 |
| 98. | 15.8% | Risco R-II School District / 676 |
| 99. | 15.8% | Jasper County R-V School District / 2,935 |
| 100. | 15.8% | Gasconade County R-I School District / 7,505 |
| 101. | 15.7% | Bucklin R-II School District / 953 |
| 102. | 15.7% | Leesville R-IX School District / 1,183 |
| 103. | 15.7% | Rock Port R-II School District / 2,237 |
| 104. | 15.7% | Kelso C-7 School District / 2,066 |
| 105. | 15.7% | Laclede County R-I School District / 3,337 |
| 106. | 15.7% | Holt County R-II School District / 1,680 |
| 107. | 15.6% | Chilhowee R-IV School District / 1,001 |
| 108. | 15.6% | Twin Rivers R-X School District / 5,922 |
| 109. | 15.5% | Forsyth R-III School District / 8,220 |
| 110. | 15.5% | Thayer R-II School District / 4,073 |
| 111. | 15.4% | Lone Jack C-6 School District / 3,192 |
| 111. | 15.4% | Atlanta C-3 Schools / 1,347 |
| 113. | 15.4% | Clearwater R-I School District / 7,109 |
| 114. | 15.4% | Sheldon R-VIII School District / 1,212 |
| 115. | 15.3% | North Nodaway County R-VI School District / 1,354 |
| 116. | 15.3% | Pattonsburg R-II School District / 1,172 |
| 117. | 15.3% | Shelby County R-IV School District / 3,863 |
| 118. | 15.2% | Hale R-I School District / 1,103 |
| 119. | 15.2% | Orrick R-XI School District / 1,866 |
| 119. | 15.2% | Oran R-III School District / 2,115 |
| 119. | 15.2% | Morgan County R-II School District / 11,373 |
| 122. | 15.2% | Bevier C-4 School District / 1,290 |
| 123. | 15.2% | Green Forest R-II School District / 1,964 |
| 123. | 15.2% | Hamilton R-II School District / 3,876 |
| 125. | 15.1% | Paris R-II School District / 3,081 |
| 126. | 15.1% | Osceola School District / 3,084 |
| 127. | 15.1% | Success R-VI School District / 997 |
| 128. | 15.0% | Gallatin R-V School District / 3,310 |
| 129. | 15.0% | Marion County R-II School District / 1,347 |
| 130. | 15.0% | Moniteau County C-1 School District / 1,362 |
| 131. | 15.0% | Revere C-3 School District / 668 |
| 132. | 14.9% | New Madrid County R-I School District / 9,458 |
| 133. | 14.9% | Henry County R-I School District / 4,302 |
| 134. | 14.9% | Nodaway-Holt R-VII School District / 1,643 |
| 135. | 14.9% | Calhoun R-VIII School District / 1,081 |
| 136. | 14.8% | Winston R-VI School District / 1,067 |
| 136. | 14.8% | Sunrise R-IX School District / 3,721 |
| 138. | 14.8% | North Daviess R-III School District / 819 |
| 139. | 14.8% | Name N/A / 99,361 |
| 140. | 14.7% | Scott County R-II School District / 3,820 |
| 141. | 14.7% | Drexel R-IV School District / 2,104 |
| 142. | 14.7% | Mid-Buchanan County R-V School District / 4,444 |
| 143. | 14.7% | Parkway School District / 141,963 |
| 144. | 14.7% | Spring Bluff R-XV School District / 1,898 |
| 144. | 14.7% | North Harrison R-III School District / 1,433 |
| 146. | 14.6% | Stockton R-I School District / 7,432 |
| 146. | 14.6% | Glenwood R-VIII School District / 2,584 |
| 148. | 14.6% | Concordia School District / 3,854 |
| 149. | 14.6% | El Dorado Springs R-II School District / 7,184 |
| 149. | 14.6% | Callao C-8 School District / 700 |
| 151. | 14.5% | North Pemiscot County R-I School District / 1,887 |
| 151. | 14.5% | Holliday C-2 School District / 544 |
| 153. | 14.5% | Ste. Genevieve County R-II School District / 14,625 |
| 154. | 14.5% | Clinton County R-III School District / 5,112 |
| 155. | 14.5% | Holden R-III School District / 8,541 |
| 156. | 14.5% | Mehlville School District / 96,221 |
| 157. | 14.4% | Tina-Avalon R-II School District / 845 |
| 158. | 14.4% | Chadwick R-I School District / 1,315 |
| 158. | 14.4% | Mansfield R-IV School District / 3,743 |
| 160. | 14.4% | Niangua R-V School District / 1,832 |
| 160. | 14.4% | Nell Holcomb R-IV School District / 2,835 |
| 160. | 14.4% | Charleston R-I School District / 8,509 |
| 163. | 14.4% | Alton R-IV School District / 4,683 |
| 164. | 14.3% | Kirkwood School District / 40,877 |
| 165. | 14.3% | Adair County R-I School District / 2,029 |
| 166. | 14.3% | Brunswick R-II School District / 1,793 |
| 167. | 14.3% | Cabool School District / 5,908 |
| 167. | 14.3% | Altenburg 48 School District / 995 |
| 169. | 14.2% | Marion County Early R-V School District / 4,935 |
| 170. | 14.2% | Zalma R-V School District / 1,802 |
| 171. | 14.2% | Milan C-2 School District / 3,781 |
| 172. | 14.2% | Midway School District / 3,430 |
| 173. | 14.2% | Ladue School District / 27,190 |
| 173. | 14.2% | Arcadia Valley R-II School District / 5,924 |
| 173. | 14.2% | Ash Grove R-IV School District / 4,846 |
| 176. | 14.1% | Winona R-III School District / 2,632 |
| 176. | 14.1% | Marceline R-V School District / 3,546 |
| 178. | 14.1% | Wheaton R-III School District / 2,012 |
| 179. | 14.1% | Hume R-VIII School District / 795 |
| 180. | 14.1% | Brookfield R-III School District / 6,330 |
| 180. | 14.1% | Strasburg C-3 School District / 987 |
| 182. | 14.0% | Santa Fe R-X School District / 2,357 |
| 182. | 14.0% | Clinton School District / 11,756 |
| 184. | 14.0% | Princeton R-V School District / 2,534 |
| 185. | 13.9% | Renick R-V School District / 1,779 |
| 186. | 13.9% | Cole County R-I School District / 4,177 |
| 186. | 13.9% | Greenville R-II School District / 5,306 |
| 188. | 13.9% | Davis R-XII School District / 439 |
| 189. | 13.9% | De Soto School District / 17,664 |
| 190. | 13.9% | Bismarck R-V School District / 3,306 |
| 191. | 13.8% | South Holt County R-I School District / 1,974 |
| 191. | 13.8% | Southland School District / 2,206 |
| 191. | 13.8% | Green Ridge R-VIII School District / 2,429 |
| 194. | 13.8% | Orearville R-IV School District / 304 |
| 195. | 13.8% | Pierce City R-VI School District / 4,164 |
| 196. | 13.8% | Delta R-V School District / 2,486 |
| 197. | 13.8% | Mark Twain R-VIII School District / 698 |
| 198. | 13.7% | Appleton City R-II School District / 2,724 |
| 199. | 13.7% | Putnam County R-I School District / 4,693 |
| 200. | 13.7% | Dexter R-XI School District / 12,732 |
| 201. | 13.7% | La Plata R-II School District / 2,672 |
| 202. | 13.7% | Campbell R-II School District / 3,684 |
| 202. | 13.7% | Jefferson County R-VII School District / 5,957 |
| 204. | 13.6% | Jennings School District / 17,386 |
| 205. | 13.6% | Clark County R-I School District / 5,883 |
| 206. | 13.6% | Silex R-I School District / 2,302 |
| 207. | 13.6% | Smithville School District / 11,225 |
| 208. | 13.6% | Pike County R-III School District / 3,063 |
| 209. | 13.6% | Camden County R-II School District / 2,643 |
| 210. | 13.5% | Richmond R-XVI School District / 10,101 |
| 210. | 13.5% | Dunklin R-V School District / 9,928 |
| 212. | 13.5% | Mountain View-Birch Tree R-III School District / 7,261 |
| 213. | 13.5% | Stewartsville C-2 School District / 1,221 |
| 214. | 13.5% | Crane R-III School District / 3,990 |
| 214. | 13.5% | Rockwood School District / 114,923 |
| 216. | 13.4% | East Buchanan County C-1 School District / 4,486 |
| 217. | 13.4% | Bunker R-III School District / 1,891 |
| 218. | 13.4% | Dallas County R-I School District / 13,255 |
| 219. | 13.4% | Worth County R-III School District / 2,140 |
| 219. | 13.4% | Otterville R-VI School District / 1,678 |
| 221. | 13.4% | Malden R-I School District / 6,143 |
| 222. | 13.4% | King City R-I School District / 1,932 |
| 222. | 13.4% | Palmyra R-I School District / 6,748 |
| 222. | 13.4% | Luray 33 School District / 457 |
| 225. | 13.3% | Stet R-XV School District / 510 |
| 226. | 13.3% | Poplar Bluff R-I School District / 32,028 |
| 227. | 13.3% | Wright City R-II School District / 10,645 |
| 228. | 13.3% | Pattonville School District / 40,437 |
| 229. | 13.3% | Savannah R-III School District / 13,762 |
| 229. | 13.3% | Excelsior Springs 40 School District / 17,398 |
| 231. | 13.2% | Marshfield R-I School District / 17,321 |
| 232. | 13.2% | Southern Reynolds County R-IV School District / 2,883 |
| 232. | 13.2% | Grundy County R-V School District / 1,082 |
| 232. | 13.2% | Moniteau County R-VI School District / 4,795 |
| 232. | 13.2% | West Platte County R-II School District / 3,970 |
| 236. | 13.2% | Meadville R-IV School District / 1,317 |
| 237. | 13.2% | Lindbergh R-VIII School District / 45,731 |
| 238. | 13.2% | Puxico R-VIII School District / 4,626 |
| 239. | 13.2% | Bronaugh R-VII School District / 1,677 |
| 240. | 13.2% | St. James R-I School District / 10,167 |
| 241. | 13.2% | Hancock Place School District / 8,154 |
| 242. | 13.1% | Bloomfield School District / 4,586 |
| 243. | 13.1% | Tarkio R-I School District / 2,330 |
| 243. | 13.1% | Clarkton C-4 School District / 1,716 |
| 245. | 13.0% | Maries County R-I School District / 4,348 |
| 245. | 13.0% | Spokane R-VII School District / 4,793 |
| 247. | 13.0% | Hollister R-V School District / 10,982 |
| 248. | 13.0% | Brentwood School District / 8,108 |
| 249. | 13.0% | Pleasant Hill R-III School District / 10,492 |
| 249. | 13.0% | Cole County R-II School District / 6,040 |
| 251. | 13.0% | St. Clair R-XIII School District / 12,015 |
| 252. | 12.9% | Blue Springs R-IV School District / 76,446 |
| 253. | 12.9% | Westran R-I School District / 3,728 |
| 254. | 12.9% | Boonville School District / 11,386 |
| 255. | 12.9% | Salem R-80 School District / 6,629 |
| 255. | 12.9% | Butler R-V School District / 6,375 |
| 257. | 12.9% | Lexington R-V School District / 5,765 |
| 258. | 12.9% | Monroe City R-I School District / 5,065 |
| 258. | 12.9% | Doniphan R-I School District / 9,964 |
| 260. | 12.8% | Greene County R-VIII School District / 12,716 |
| 261. | 12.8% | Dent-Phelps R-III School District / 2,346 |
| 262. | 12.8% | Strafford R-VI School District / 6,530 |
| 262. | 12.8% | Buchanan County R-IV School District / 1,950 |
| 264. | 12.8% | Knox County R-I School District / 4,094 |
| 264. | 12.8% | Francis Howell School District / 113,474 |
| 266. | 12.8% | Mount Vernon R-V School District / 9,422 |
| 267. | 12.8% | Cole County R-V School District / 4,332 |
| 267. | 12.8% | Jackson R-II School District / 29,857 |
| 269. | 12.7% | Verona R-VII School District / 2,301 |
| 269. | 12.7% | Northwest R-I School District / 44,597 |
| 269. | 12.7% | Fulton School District / 18,984 |
| 272. | 12.7% | Elsberry R-II School District / 4,850 |
| 272. | 12.7% | Richland R-I School District / 1,714 |
| 274. | 12.6% | Independence Public Schools / 93,667 |
| 275. | 12.6% | Carrollton R-VII School District / 5,494 |
| 275. | 12.6% | Hayti R-II School District / 3,666 |
| 277. | 12.6% | Lakeland R-III School District / 2,679 |
| 277. | 12.6% | Montgomery County R-II School District / 8,817 |
| 279. | 12.6% | Plainview R-VIII School District / 1,027 |
| 280. | 12.6% | Normandy School District / 37,812 |
| 280. | 12.6% | Cassville R-IV School District / 11,789 |
| 282. | 12.5% | Schuyler County R-I School District / 4,673 |
| 283. | 12.5% | Odessa R-VII School District / 12,195 |
| 284. | 12.5% | Fredericktown R-I School District / 10,722 |
| 284. | 12.5% | Senath-Hornersville C-8 School District / 4,693 |
| 286. | 12.5% | Leeton R-X School District / 2,084 |
| 286. | 12.5% | Mountain Grove R-III School District / 8,944 |
| 288. | 12.5% | Steelville School District / 5,588 |
| 289. | 12.4% | Nevada R-V School District / 15,276 |
| 290. | 12.4% | High Point R-III School District / 760 |
| 290. | 12.4% | Lonedell R-XIV School District / 3,428 |
| 292. | 12.4% | Crawford County R-I School District / 6,311 |
| 292. | 12.4% | East Newton County R-VI School District / 9,702 |
| 294. | 12.4% | Washington School District / 31,504 |
| 294. | 12.4% | Lamar R-I School District / 7,325 |
| 296. | 12.3% | Scotland County R-I School District / 4,377 |
| 296. | 12.3% | Miller County R-III School District / 1,264 |
| 298. | 12.3% | Sikeston School District / 20,625 |
| 299. | 12.3% | Hannibal School District / 22,478 |
| 300. | 12.3% | Eldon R-I School District / 11,922 |
| 300. | 12.3% | Meramec Valley R-III School District / 22,389 |
| 300. | 12.3% | Affton School District / 26,715 |
| 303. | 12.3% | Community R-VI School District / 1,985 |
| 304. | 12.3% | McDonald County R-I School District / 18,505 |
| 305. | 12.3% | Neelyville R-IV School District / 3,996 |
| 305. | 12.3% | Louisiana R-II School District / 4,356 |
| 307. | 12.3% | Hazelwood School District / 119,980 |
| 308. | 12.2% | Wellsville-Middletown R-I School District / 2,649 |
| 308. | 12.2% | Chillicothe R-II School District / 12,596 |
| 310. | 12.2% | Rich Hill R-IV School District / 2,424 |
| 311. | 12.2% | Festus R-6 School District / 16,863 |
| 311. | 12.2% | Park Hill School District / 62,870 |
| 313. | 12.2% | Purdy R-II School District / 3,335 |
| 313. | 12.2% | East Lynne 40 School District / 1,520 |
| 315. | 12.2% | Gasconade County R-II School District / 11,640 |
| 315. | 12.2% | Neosho R-5 School District / 26,798 |
| 315. | 12.2% | Jefferson City Public Schools / 72,160 |
| 318. | 12.1% | Branson R-IV School District / 26,412 |
| 318. | 12.1% | Republic School District / 23,032 |
| 318. | 12.1% | Center 58 School District / 26,591 |
| 318. | 12.1% | Seneca R-VII School District / 8,120 |
| 322. | 12.1% | Pemiscot County R-3 School District / 891 |
| 322. | 12.1% | Bernie School District / 3,284 |
| 324. | 12.1% | Northwestern R-I School District / 1,057 |
| 324. | 12.1% | Pettis County R-XII School District / 1,140 |
| 324. | 12.1% | Cass County R-V School District / 2,915 |
| 327. | 12.1% | Carthage R-IX School District / 23,106 |
| 328. | 12.1% | Perry County 32 School District / 17,825 |
| 329. | 12.1% | Harrisonville R-IX School District / 14,183 |
| 330. | 12.1% | Maplewood-Richmond Heights School District / 14,395 |
| 331. | 12.1% | North Callaway R-I School District / 6,412 |
| 331. | 12.1% | Osage County R-III School District / 6,362 |
| 333. | 12.1% | Ripley County R-IV School District / 1,021 |
| 333. | 12.1% | Diamond R-IV School District / 5,616 |
| 335. | 12.0% | Skyline R-II School District / 1,391 |
| 336. | 12.0% | Mexico 59 School District / 15,119 |
| 337. | 12.0% | Caruthersville School District / 6,055 |
| 337. | 12.0% | West Plains R-VII School District / 13,294 |
| 339. | 12.0% | North Kansas City School District / 122,939 |
| 339. | 12.0% | Clarksburg C-2 School District / 776 |
| 341. | 12.0% | Webster Groves School District / 31,361 |
| 342. | 11.9% | Raytown C-2 School District / 58,840 |
| 343. | 11.9% | Farmington R-7 School District / 27,513 |
| 344. | 11.9% | Macon County R-I School District / 8,666 |
| 344. | 11.9% | Aurora R-8 School District / 10,752 |
| 346. | 11.9% | Bayless School District / 12,505 |
| 347. | 11.9% | Marquand-Zion School District / 1,431 |
| 348. | 11.9% | Ballard R-II School District / 775 |
| 349. | 11.9% | Maysville R-I School District / 4,105 |
| 350. | 11.8% | Grandview C-4 School District / 31,233 |
| 351. | 11.8% | Kearney R-I School District / 18,325 |
| 351. | 11.8% | Miami R-I School District / 618 |
| 353. | 11.8% | Osage County R-II School District / 5,177 |
| 353. | 11.8% | Salisbury R-IV School District / 3,331 |
| 355. | 11.8% | Boone County R-IV School District / 7,344 |
| 356. | 11.8% | Richards R-V School District / 3,541 |
| 356. | 11.8% | Ferguson-Florissant School District / 69,422 |
| 358. | 11.8% | East Carter County R-II School District / 4,453 |
| 359. | 11.8% | Albany R-III School District / 3,114 |
| 360. | 11.7% | Lathrop R-II School District / 4,931 |
| 360. | 11.7% | Linn County R-I School District / 1,584 |
| 362. | 11.7% | Trenton R-IX School District / 7,590 |
| 363. | 11.7% | St. Charles County R-V School District / 10,902 |
| 364. | 11.7% | Maries County R-II School District / 5,339 |
| 364. | 11.7% | Crawford County R-2 School District / 9,088 |
| 366. | 11.7% | Norwood R-I School District / 2,463 |
| 367. | 11.6% | Sullivan School District / 12,158 |
| 368. | 11.6% | Breckenridge R-I School District / 543 |
| 369. | 11.6% | Kennett 39 School District / 11,274 |
| 370. | 11.6% | Scott City R-I School District / 5,416 |
| 370. | 11.6% | Platte County R-III School District / 22,544 |
| 372. | 11.5% | Joplin R-VIII School District / 58,962 |
| 372. | 11.5% | Windsor C-1 School District / 17,243 |
| 374. | 11.5% | North Andrew County R-VI School District / 1,738 |
| 375. | 11.5% | Gilliam C-4 School District / 339 |
| 376. | 11.5% | St. Charles R-VI School District / 53,651 |
| 377. | 11.4% | Licking School District / 6,462 |
| 377. | 11.4% | Pettis County R-V School District / 2,028 |
| 379. | 11.4% | Leopold R-III School District / 1,102 |
| 379. | 11.4% | Kansas City School District / 191,819 |
| 379. | 11.4% | Naylor R-II School District / 1,925 |
| 382. | 11.4% | Fort Osage R-I School District / 25,935 |
| 383. | 11.4% | Osage County R-I School District / 1,321 |
| 383. | 11.4% | Springfield School District / 205,489 |
| 383. | 11.4% | St. Joseph School District / 80,601 |
| 386. | 11.4% | Cowgill R-VI School District / 370 |
| 387. | 11.3% | North Wood R-IV School District / 2,337 |
| 388. | 11.3% | Lebanon School District / 25,020 |
| 388. | 11.3% | Raymore-Peculiar R-II School District / 32,854 |
| 390. | 11.3% | North St. Francis County R-I School District / 20,784 |
| 391. | 11.3% | Warren County R-III School District / 18,925 |
| 392. | 11.3% | Adair County R-II School District / 1,725 |
| 393. | 11.3% | Cameron R-I School District / 13,125 |
| 394. | 11.3% | Portageville School District / 4,314 |
| 395. | 11.3% | Lafayette County C-1 School District / 6,502 |
| 396. | 11.3% | Carl Junction R-I School District / 15,882 |
| 397. | 11.2% | Fayette R-III School District / 4,850 |
| 397. | 11.2% | Union R-XI School District / 20,456 |
| 399. | 11.2% | Fordland R-III School District / 3,848 |
| 399. | 11.2% | Hillsboro R-III School District / 21,520 |
| 401. | 11.2% | Ozark R-VI School District / 29,422 |
| 401. | 11.2% | Lockwood R-I School District / 2,411 |
| 403. | 11.1% | New Bloomfield R-III School District / 4,785 |
| 403. | 11.1% | Marshall School District / 15,163 |
| 405. | 11.1% | Spickard R-II School District / 566 |
| 406. | 11.1% | Willow Springs R-IV School District / 8,072 |
| 406. | 11.1% | Ritenour School District / 44,541 |
| 408. | 11.1% | Fair Grove R-10 School District / 6,029 |
| 408. | 11.1% | Howard County R-II School District / 2,370 |
| 408. | 11.1% | Winfield School District / 10,146 |
| 408. | 11.1% | Sturgeon R-V School District / 3,082 |
| 412. | 11.1% | Wellington-Napoleon R-IX School District / 2,607 |
| 413. | 11.1% | Clever R-V School District / 5,708 |
| 413. | 11.1% | Crystal City 47 School District / 3,893 |
| 415. | 11.0% | Centerville R-I School District / 1,033 |
| 416. | 11.0% | Scott County R-IV School District / 6,128 |
| 417. | 11.0% | Walnut Grove R-V School District / 1,952 |
| 418. | 11.0% | Harrisburg R-VIII School District / 3,166 |
| 418. | 11.0% | Adrian County R-III School District / 4,417 |
| 418. | 11.0% | St. Louis City School District / 318,527 |
| 418. | 11.0% | Sedalia 200 School District / 29,946 |
| 418. | 11.0% | Northeast Nodaway County R-V School District / 1,533 |
| 423. | 11.0% | Liberal R-II School District / 2,923 |
| 424. | 10.9% | Polo R-VII School District / 2,122 |
| 424. | 10.9% | Howell Valley R-I School District / 2,506 |
| 426. | 10.9% | West Nodaway County R-I School District / 1,725 |
| 427. | 10.9% | Central R-III School District / 11,575 |
| 428. | 10.9% | Seymour R-II School District / 6,701 |
| 429. | 10.8% | Fox C-6 School District / 69,452 |
| 430. | 10.8% | Moberly School District / 16,265 |
| 431. | 10.8% | La Monte R-IV School District / 2,041 |
| 432. | 10.8% | Clayton School District / 18,608 |
| 433. | 10.7% | Miller R-II School District / 3,951 |
| 434. | 10.7% | Union Star R-II School District / 914 |
| 435. | 10.7% | Centralia R-VI School District / 7,647 |
| 435. | 10.7% | Scott County Central Schools / 1,877 |
| 437. | 10.7% | Troy R-III School District / 33,092 |
| 438. | 10.7% | Valley Park School District / 8,257 |
| 439. | 10.7% | Green City R-I School District / 1,860 |
| 440. | 10.6% | Hartville R-II School District / 4,653 |
| 441. | 10.6% | West St. Francis County R-IV School District / 6,054 |
| 441. | 10.6% | Shawnee R-III School District / 744 |
| 441. | 10.6% | Grain Valley R-V School District / 16,927 |
| 444. | 10.6% | Fort Zumwalt R-II School District / 111,105 |
| 444. | 10.6% | Cape Girardeau 63 School District / 38,265 |
| 446. | 10.6% | Kirbyville R-VI School District / 2,598 |
| 447. | 10.6% | Golden City School District / 1,873 |
| 448. | 10.6% | Smithton R-VI School District / 3,192 |
| 449. | 10.5% | Moniteau County R-I School District / 7,167 |
| 449. | 10.5% | Bowling Green R-I School District / 11,653 |
| 451. | 10.5% | Lee's Summit R-7 School District / 91,105 |
| 452. | 10.4% | Northeast Randolph County R-IV School District / 1,947 |
| 452. | 10.4% | Richwoods R-VII School District / 1,908 |
| 454. | 10.4% | Kingston 42 School District / 433 |
| 455. | 10.4% | Gideon School District / 1,551 |
| 455. | 10.4% | University City School District / 35,920 |
| 455. | 10.4% | Potosi R-III School District / 12,515 |
| 455. | 10.4% | Willard School District / 23,457 |
| 459. | 10.3% | Wentzville R-IV School District / 70,180 |
| 460. | 10.3% | Meadow Heights R-II School District / 3,873 |
| 460. | 10.3% | Rolla 31 School District / 30,414 |
| 462. | 10.2% | Shelby County C-1 School District / 2,334 |
| 463. | 10.1% | Sarcoxie R-II School District / 3,183 |
| 464. | 10.1% | Webb City R-VII School District / 21,449 |
| 464. | 10.1% | Belton 124 School District / 26,423 |
| 464. | 10.1% | Cooper County C-4 School District / 873 |
| 467. | 10.1% | South Iron County R-I School District / 2,306 |
| 467. | 10.1% | Van-Far School District / 5,688 |
| 467. | 10.1% | Sparta R-III School District / 4,097 |
| 470. | 10.0% | Laquey R-V School District / 3,679 |
| 471. | 10.0% | Hickman Mills C-1 School District / 48,989 |
| 472. | 10.0% | Nixa School District / 28,598 |
| 473. | 10.0% | Liberty Schools / 53,149 |
| 474. | 9.9% | Avilla R-XIII School District / 1,392 |
| 475. | 9.9% | Exeter R-VI School District / 2,181 |
| 475. | 9.9% | Hardin-Central C-2 School District / 1,051 |
| 477. | 9.9% | Newburg R-II School District / 3,369 |
| 477. | 9.9% | Westview C-6 School District / 1,194 |
| 479. | 9.9% | Strain-Japan R-XVI School District / 882 |
| 479. | 9.9% | Halfway R-III School District / 2,374 |
| 481. | 9.8% | Riverview Gardens School District / 39,929 |
| 482. | 9.8% | South Harrison School District / 5,696 |
| 483. | 9.7% | Lawson R-XIV School District / 6,005 |
| 484. | 9.7% | Bolivar R-I School District / 15,522 |
| 485. | 9.6% | Livingston County R-III School District / 727 |
| 486. | 9.6% | Holcomb R-III School District / 2,395 |
| 487. | 9.6% | South Nodaway County R-IV School District / 889 |
| 488. | 9.6% | Crocker School District / 3,163 |
| 489. | 9.5% | Kirksville R-III School District / 21,566 |
| 490. | 9.4% | Oak Grove R-VI School District / 11,163 |
| 490. | 9.4% | South Pemiscot Schools / 3,727 |
| 492. | 9.4% | Kingsville R-I School District / 2,082 |
| 493. | 9.4% | Columbia Public Schools / 137,146 |
| 494. | 9.3% | Prairie Home R-V School District / 1,312 |
| 495. | 9.3% | East Prairie R-II School District / 5,722 |
| 496. | 9.1% | Braymer C-4 School District / 1,849 |
| 497. | 9.0% | Mirabile C-1 School District / 588 |
| 498. | 8.9% | Gentry County R-II School District / 2,004 |
| 499. | 8.9% | Monett R-I School District / 13,041 |
| 500. | 8.8% | Pilot Grove C-4 School District / 1,955 |
| 501. | 8.7% | Tri-County R-VII School District / 2,060 |
| 502. | 8.7% | North Mercer County R-III School District / 1,145 |
| 503. | 8.7% | Maryville R-II Schools / 15,779 |
| 504. | 8.7% | Pleasant Hope R-VI School District / 5,073 |
| 505. | 8.3% | Plato R-V School District / 4,545 |
| 506. | 8.2% | Moniteau County R-V School District / 1,208 |
| 507. | 8.1% | New Haven School District / 2,622 |
| 508. | 7.8% | Malta Bend R-V School District / 669 |
| 509. | 7.8% | Warrensburg R-VI School District / 25,404 |
| 510. | 7.7% | Southwest R-V School District / 4,722 |
| 511. | 7.7% | Dadeville R-II School District / 1,018 |
| 512. | 7.7% | Iberia R-V School District / 4,879 |
| 513. | 7.6% | Sherwood Cass R-VIII School District / 5,142 |
| 514. | 7.2% | Jefferson C-123 School District / 942 |
| 515. | 7.1% | Canton School District / 4,343 |
| 516. | 7.0% | Advance R-IV School District / 3,265 |
| 517. | 6.7% | Gorin R-III School District / 490 |
| 518. | 6.4% | Cooter R-IV School District / 888 |
| 519. | 5.6% | Knob Noster R-VIII School District / 9,324 |
| 520. | 5.2% | New York R-IV School District / 268 |
| 521. | 5.0% | Waynesville R-VI Schools / 36,601 |
Please note that we only rank locations with 'Percentage of Population Age 55 to 64' data. The rank above might not be a complete list. Locations without 'Percentage of Population Age 55 to 64' 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.
