| Rank | Average Family Size ▼ | School District / Population |
| 1. | 4.14 | Moniteau County R-V School District / 1,208 |
| 2. | 3.99 | Tri-County R-VII School District / 2,060 |
| 3. | 3.97 | Middle Grove C-1 School District / 775 |
| 4. | 3.93 | Seymour R-II School District / 6,701 |
| 5. | 3.81 | Mirabile C-1 School District / 588 |
| 6. | 3.75 | Richwoods R-VII School District / 1,908 |
| 7. | 3.74 | North Wood R-IV School District / 2,337 |
| 8. | 3.69 | Northeast Nodaway County R-V School District / 1,533 |
| 9. | 3.69 | Richards R-V School District / 3,541 |
| 10. | 3.66 | Prairie Home R-V School District / 1,312 |
| 11. | 3.66 | East Prairie R-II School District / 5,722 |
| 12. | 3.63 | Dadeville R-II School District / 1,018 |
| 13. | 3.60 | South Pemiscot Schools / 3,727 |
| 14. | 3.60 | La Monte R-IV School District / 2,041 |
| 15. | 3.57 | Howell Valley R-I School District / 2,506 |
| 16. | 3.56 | Cooter R-IV School District / 888 |
| 17. | 3.56 | Waynesville R-VI Schools / 36,601 |
| 18. | 3.55 | Ripley County R-IV School District / 1,021 |
| 19. | 3.54 | Gorin R-III School District / 490 |
| 20. | 3.52 | Hayti R-II School District / 3,666 |
| 21. | 3.51 | East Carter County R-II School District / 4,453 |
| 22. | 3.50 | Northeast Randolph County R-IV School District / 1,947 |
| 23. | 3.50 | McDonald County R-I School District / 18,505 |
| 24. | 3.49 | Brookfield R-III School District / 6,330 |
| 25. | 3.49 | New Haven School District / 2,622 |
| 26. | 3.48 | Livingston County R-III School District / 727 |
| 27. | 3.48 | Renick R-V School District / 1,779 |
| 28. | 3.48 | Hancock Place School District / 8,154 |
| 29. | 3.47 | Green Ridge R-VIII School District / 2,429 |
| 30. | 3.46 | Carthage R-IX School District / 23,106 |
| 31. | 3.45 | Plainview R-VIII School District / 1,027 |
| 32. | 3.43 | Southwest R-V School District / 4,722 |
| 33. | 3.43 | Hume R-VIII School District / 795 |
| 34. | 3.43 | Brunswick R-II School District / 1,793 |
| 35. | 3.42 | Elsberry R-II School District / 4,850 |
| 36. | 3.42 | Adair County R-II School District / 1,725 |
| 37. | 3.42 | Bunker R-III School District / 1,891 |
| 38. | 3.42 | Monett R-I School District / 13,041 |
| 39. | 3.42 | East Newton County R-VI School District / 9,702 |
| 40. | 3.41 | La Plata R-II School District / 2,672 |
| 41. | 3.41 | Caruthersville School District / 6,055 |
| 42. | 3.39 | Pettis County R-XII School District / 1,140 |
| 43. | 3.39 | Maysville R-I School District / 4,105 |
| 44. | 3.39 | Green Forest R-II School District / 1,964 |
| 45. | 3.39 | Kingston K-14 School District / 5,271 |
| 46. | 3.39 | Plato R-V School District / 4,545 |
| 47. | 3.39 | Luray 33 School District / 457 |
| 48. | 3.38 | Avilla R-XIII School District / 1,392 |
| 49. | 3.38 | Silex R-I School District / 2,302 |
| 50. | 3.38 | Hale R-I School District / 1,103 |
| 51. | 3.38 | Jefferson C-123 School District / 942 |
| 52. | 3.37 | Troy R-III School District / 33,092 |
| 53. | 3.36 | Fort Osage R-I School District / 25,935 |
| 54. | 3.36 | Sheldon R-VIII School District / 1,212 |
| 55. | 3.36 | Scott County Central Schools / 1,877 |
| 56. | 3.36 | Winfield School District / 10,146 |
| 57. | 3.35 | Thayer R-II School District / 4,073 |
| 58. | 3.34 | Bronaugh R-VII School District / 1,677 |
| 59. | 3.34 | Sturgeon R-V School District / 3,082 |
| 60. | 3.34 | Macks Creek R-V School District / 2,889 |
| 61. | 3.33 | Buchanan County R-IV School District / 1,950 |
| 62. | 3.33 | Hickman Mills C-1 School District / 48,989 |
| 63. | 3.33 | Lonedell R-XIV School District / 3,428 |
| 64. | 3.32 | Scott City R-I School District / 5,416 |
| 65. | 3.32 | Pleasant Hope R-VI School District / 5,073 |
| 66. | 3.32 | Oak Grove R-VI School District / 11,163 |
| 67. | 3.31 | Spickard R-II School District / 566 |
| 68. | 3.31 | Grain Valley R-V School District / 16,927 |
| 69. | 3.31 | Fordland R-III School District / 3,848 |
| 70. | 3.30 | Miami R-I School District / 618 |
| 71. | 3.30 | Smithton R-VI School District / 3,192 |
| 72. | 3.30 | Senath-Hornersville C-8 School District / 4,693 |
| 73. | 3.29 | Norwood R-I School District / 2,463 |
| 74. | 3.29 | Liberty Schools / 53,149 |
| 75. | 3.29 | Kirbyville R-VI School District / 2,598 |
| 76. | 3.29 | Fort Zumwalt R-II School District / 111,105 |
| 77. | 3.29 | Moberly School District / 16,265 |
| 78. | 3.29 | Canton School District / 4,343 |
| 79. | 3.29 | New Bloomfield R-III School District / 4,785 |
| 80. | 3.28 | Cole County R-I School District / 4,177 |
| 81. | 3.28 | Wheaton R-III School District / 2,012 |
| 82. | 3.28 | Fair Grove R-10 School District / 6,029 |
| 83. | 3.28 | Kansas City School District / 191,819 |
| 84. | 3.28 | St. Joseph School District / 80,601 |
| 85. | 3.28 | Delta R-V School District / 2,486 |
| 86. | 3.28 | Scott County R-IV School District / 6,128 |
| 87. | 3.28 | Gallatin R-V School District / 3,310 |
| 88. | 3.27 | Otterville R-VI School District / 1,678 |
| 89. | 3.27 | Marion County Early R-V School District / 4,935 |
| 90. | 3.27 | Revere C-3 School District / 668 |
| 91. | 3.27 | Meadville R-IV School District / 1,317 |
| 92. | 3.27 | Halfway R-III School District / 2,374 |
| 93. | 3.27 | Schuyler County R-I School District / 4,673 |
| 94. | 3.26 | St. Louis City School District / 318,527 |
| 95. | 3.26 | Mid-Buchanan County R-V School District / 4,444 |
| 96. | 3.26 | Riverview Gardens School District / 39,929 |
| 97. | 3.26 | Sullivan School District / 12,158 |
| 98. | 3.26 | Lee's Summit R-7 School District / 91,105 |
| 99. | 3.25 | Charleston R-I School District / 8,509 |
| 100. | 3.25 | Mount Vernon R-V School District / 9,422 |
| 101. | 3.25 | Milan C-2 School District / 3,781 |
| 102. | 3.25 | Clarkton C-4 School District / 1,716 |
| 103. | 3.25 | Fox C-6 School District / 69,452 |
| 104. | 3.25 | Clark County R-I School District / 5,883 |
| 105. | 3.25 | Leopold R-III School District / 1,102 |
| 106. | 3.25 | Howard County R-II School District / 2,370 |
| 107. | 3.24 | Windsor C-1 School District / 17,243 |
| 108. | 3.24 | Iberia R-V School District / 4,879 |
| 109. | 3.24 | Lone Jack C-6 School District / 3,192 |
| 110. | 3.24 | Ava R-I School District / 8,860 |
| 111. | 3.24 | Winona R-III School District / 2,632 |
| 112. | 3.24 | Neosho R-5 School District / 26,798 |
| 113. | 3.24 | Belton 124 School District / 26,423 |
| 114. | 3.24 | Southland School District / 2,206 |
| 115. | 3.24 | Adair County R-I School District / 2,029 |
| 116. | 3.23 | Wentzville R-IV School District / 70,180 |
| 117. | 3.23 | Cole County R-II School District / 6,040 |
| 118. | 3.23 | Norborne R-VIII School District / 1,094 |
| 119. | 3.23 | Shawnee R-III School District / 744 |
| 120. | 3.23 | Aurora R-8 School District / 10,752 |
| 121. | 3.23 | Advance R-IV School District / 3,265 |
| 122. | 3.22 | Verona R-VII School District / 2,301 |
| 123. | 3.22 | Junction Hill C-12 School District / 1,806 |
| 124. | 3.22 | Marceline R-V School District / 3,546 |
| 125. | 3.22 | Hazelwood School District / 119,980 |
| 126. | 3.22 | Adrian County R-III School District / 4,417 |
| 127. | 3.22 | Normandy School District / 37,812 |
| 128. | 3.22 | Pettis County R-V School District / 2,028 |
| 129. | 3.22 | Marquand-Zion School District / 1,431 |
| 130. | 3.21 | Linn County R-I School District / 1,584 |
| 131. | 3.21 | Lawson R-XIV School District / 6,005 |
| 132. | 3.21 | Laquey R-V School District / 3,679 |
| 133. | 3.21 | Northwestern R-I School District / 1,057 |
| 134. | 3.21 | Van-Far School District / 5,688 |
| 135. | 3.21 | Malta Bend R-V School District / 669 |
| 136. | 3.21 | Willow Springs R-IV School District / 8,072 |
| 137. | 3.21 | Gideon School District / 1,551 |
| 138. | 3.21 | Hartville R-II School District / 4,653 |
| 139. | 3.20 | Rolla 31 School District / 30,414 |
| 140. | 3.20 | Blackwater R-II School District / 1,019 |
| 141. | 3.20 | Hardin-Central C-2 School District / 1,051 |
| 142. | 3.20 | Sherwood Cass R-VIII School District / 5,142 |
| 143. | 3.20 | Rockwood School District / 114,923 |
| 144. | 3.20 | Union R-XI School District / 20,456 |
| 145. | 3.20 | Kennett 39 School District / 11,274 |
| 146. | 3.19 | Sedalia 200 School District / 29,946 |
| 147. | 3.19 | Jefferson County R-VII School District / 5,957 |
| 148. | 3.19 | Golden City School District / 1,873 |
| 149. | 3.18 | Sunrise R-IX School District / 3,721 |
| 150. | 3.18 | Manes R-V School District / 735 |
| 151. | 3.18 | Grandview C-4 School District / 31,233 |
| 152. | 3.18 | Zalma R-V School District / 1,802 |
| 153. | 3.18 | Naylor R-II School District / 1,925 |
| 154. | 3.18 | Jennings School District / 17,386 |
| 155. | 3.18 | Scott County R-II School District / 3,820 |
| 156. | 3.18 | Licking School District / 6,462 |
| 157. | 3.17 | St. Clair R-XIII School District / 12,015 |
| 158. | 3.17 | Crystal City 47 School District / 3,893 |
| 159. | 3.17 | Raymore-Peculiar R-II School District / 32,854 |
| 160. | 3.17 | Spring Bluff R-XV School District / 1,898 |
| 161. | 3.17 | De Soto School District / 17,664 |
| 162. | 3.17 | West Platte County R-II School District / 3,970 |
| 163. | 3.16 | Shelby County C-1 School District / 2,334 |
| 164. | 3.16 | Meramec Valley R-III School District / 22,389 |
| 165. | 3.16 | Crane R-III School District / 3,990 |
| 166. | 3.16 | Knob Noster R-VIII School District / 9,324 |
| 167. | 3.16 | Purdy R-II School District / 3,335 |
| 168. | 3.16 | Webb City R-VII School District / 21,449 |
| 169. | 3.16 | Bradleyville R-I School District / 1,110 |
| 170. | 3.16 | Raytown C-2 School District / 58,840 |
| 171. | 3.15 | Hillsboro R-III School District / 21,520 |
| 172. | 3.15 | Exeter R-VI School District / 2,181 |
| 173. | 3.15 | Morgan County R-II School District / 11,373 |
| 174. | 3.15 | Bowling Green R-I School District / 11,653 |
| 175. | 3.15 | Independence Public Schools / 93,667 |
| 176. | 3.15 | Blue Springs R-IV School District / 76,446 |
| 177. | 3.15 | Festus R-6 School District / 16,863 |
| 178. | 3.15 | North Harrison R-III School District / 1,433 |
| 179. | 3.14 | Crawford County R-2 School District / 9,088 |
| 180. | 3.14 | Northeast Vernon County R-I School District / 1,909 |
| 181. | 3.14 | East Buchanan County C-1 School District / 4,486 |
| 182. | 3.14 | Francis Howell School District / 113,474 |
| 183. | 3.14 | Dunklin R-V School District / 9,928 |
| 184. | 3.14 | Miami R-I School District / 1,282 |
| 185. | 3.14 | Ferguson-Florissant School District / 69,422 |
| 186. | 3.14 | Moniteau County C-1 School District / 1,362 |
| 187. | 3.14 | Moniteau County R-VI School District / 4,795 |
| 188. | 3.14 | Northwest R-I School District / 44,597 |
| 189. | 3.14 | Crocker School District / 3,163 |
| 190. | 3.14 | Ripley County R-III School District / 1,013 |
| 191. | 3.14 | Mexico 59 School District / 15,119 |
| 192. | 3.14 | Osage County R-II School District / 5,177 |
| 193. | 3.14 | Callao C-8 School District / 700 |
| 194. | 3.14 | Stewartsville C-2 School District / 1,221 |
| 195. | 3.14 | Poplar Bluff R-I School District / 32,028 |
| 196. | 3.14 | High Point R-III School District / 760 |
| 197. | 3.13 | Name N/A / 99,361 |
| 198. | 3.13 | Carrollton R-VII School District / 5,494 |
| 199. | 3.13 | Carl Junction R-I School District / 15,882 |
| 200. | 3.13 | Laredo R-VII School District / 511 |
| 201. | 3.13 | Taneyville R-II School District / 1,633 |
| 202. | 3.13 | Pilot Grove C-4 School District / 1,955 |
| 203. | 3.13 | Phelps County R-III School District / 1,892 |
| 204. | 3.13 | Warren County R-III School District / 18,925 |
| 205. | 3.13 | Dent-Phelps R-III School District / 2,346 |
| 206. | 3.13 | Campbell R-II School District / 3,684 |
| 207. | 3.13 | Steelville School District / 5,588 |
| 208. | 3.12 | Branson R-IV School District / 26,412 |
| 209. | 3.12 | Strain-Japan R-XVI School District / 882 |
| 210. | 3.12 | Alton R-IV School District / 4,683 |
| 211. | 3.12 | North Pemiscot County R-I School District / 1,887 |
| 212. | 3.12 | Salisbury R-IV School District / 3,331 |
| 213. | 3.12 | Potosi R-III School District / 12,515 |
| 214. | 3.12 | Osage County R-III School District / 6,362 |
| 215. | 3.12 | Clarksburg C-2 School District / 776 |
| 216. | 3.12 | Glenwood R-VIII School District / 2,584 |
| 217. | 3.12 | Pike County R-III School District / 3,063 |
| 218. | 3.11 | Meadow Heights R-II School District / 3,873 |
| 219. | 3.11 | Holliday C-2 School District / 544 |
| 220. | 3.11 | Nevada R-V School District / 15,276 |
| 221. | 3.11 | Everton R-III School District / 1,465 |
| 222. | 3.11 | Raymondville R-7 School District / 1,079 |
| 223. | 3.11 | Niangua R-V School District / 1,832 |
| 224. | 3.11 | North Kansas City School District / 122,939 |
| 225. | 3.11 | Richmond R-XVI School District / 10,101 |
| 226. | 3.11 | Henry County R-I School District / 4,302 |
| 227. | 3.11 | Newburg R-II School District / 3,369 |
| 228. | 3.10 | King City R-I School District / 1,932 |
| 229. | 3.10 | Tina-Avalon R-II School District / 845 |
| 230. | 3.10 | Webster Groves School District / 31,361 |
| 231. | 3.10 | South Harrison School District / 5,696 |
| 232. | 3.10 | Sparta R-III School District / 4,097 |
| 233. | 3.10 | Chillicothe R-II School District / 12,596 |
| 234. | 3.10 | Marshall School District / 15,163 |
| 235. | 3.10 | Valley Park School District / 8,257 |
| 236. | 3.10 | Ritenour School District / 44,541 |
| 237. | 3.10 | Bayless School District / 12,505 |
| 238. | 3.10 | Kearney R-I School District / 18,325 |
| 239. | 3.09 | Liberal R-II School District / 2,923 |
| 240. | 3.09 | New Madrid County R-I School District / 9,458 |
| 241. | 3.09 | Holcomb R-III School District / 2,395 |
| 242. | 3.09 | Harrisonville R-IX School District / 14,183 |
| 243. | 3.09 | Oran R-III School District / 2,115 |
| 244. | 3.09 | Macon County R-I School District / 8,666 |
| 245. | 3.09 | Marshfield R-I School District / 17,321 |
| 246. | 3.09 | Bloomfield School District / 4,586 |
| 247. | 3.09 | Hamilton R-II School District / 3,876 |
| 248. | 3.09 | Eldon R-I School District / 11,922 |
| 249. | 3.09 | Community R-VI School District / 1,985 |
| 250. | 3.09 | Nixa School District / 28,598 |
| 251. | 3.08 | West St. Francis County R-IV School District / 6,054 |
| 252. | 3.08 | Fayette R-III School District / 4,850 |
| 253. | 3.08 | Washington School District / 31,504 |
| 254. | 3.08 | Crawford County R-I School District / 6,311 |
| 255. | 3.07 | Gentry County R-II School District / 2,004 |
| 256. | 3.07 | Lafayette County C-1 School District / 6,502 |
| 257. | 3.07 | Breckenridge R-I School District / 543 |
| 258. | 3.07 | Ozark R-VI School District / 29,422 |
| 259. | 3.07 | Laclede County C-5 School District / 3,933 |
| 260. | 3.07 | Ash Grove R-IV School District / 4,846 |
| 261. | 3.07 | Portageville School District / 4,314 |
| 262. | 3.07 | Joplin R-VIII School District / 58,962 |
| 263. | 3.07 | Malden R-I School District / 6,143 |
| 264. | 3.06 | Woodland R-IV School District / 5,226 |
| 265. | 3.06 | Kirkwood School District / 40,877 |
| 266. | 3.06 | Oak Ridge R-VI School District / 2,216 |
| 267. | 3.06 | Excelsior Springs 40 School District / 17,398 |
| 268. | 3.06 | Drexel R-IV School District / 2,104 |
| 269. | 3.06 | Leeton R-X School District / 2,084 |
| 270. | 3.06 | Green City R-I School District / 1,860 |
| 271. | 3.06 | Summersville R-II School District / 2,841 |
| 272. | 3.05 | Lockwood R-I School District / 2,411 |
| 273. | 3.05 | Seneca R-VII School District / 8,120 |
| 274. | 3.05 | Slater School District / 2,352 |
| 275. | 3.05 | Butler R-V School District / 6,375 |
| 276. | 3.05 | Perry County 32 School District / 17,825 |
| 277. | 3.05 | Fair Play R-II School District / 2,431 |
| 278. | 3.05 | Park Hill School District / 62,870 |
| 279. | 3.05 | Union Star R-II School District / 914 |
| 280. | 3.05 | Rich Hill R-IV School District / 2,424 |
| 281. | 3.05 | Sweet Springs R-VII School District / 2,769 |
| 282. | 3.05 | Smithville School District / 11,225 |
| 283. | 3.05 | St. James R-I School District / 10,167 |
| 284. | 3.05 | Cole Camp R-I School District / 5,152 |
| 285. | 3.04 | Platte County R-III School District / 22,544 |
| 286. | 3.04 | Willard School District / 23,457 |
| 287. | 3.04 | Bernie School District / 3,284 |
| 288. | 3.04 | Princeton R-V School District / 2,534 |
| 289. | 3.04 | Cameron R-I School District / 13,125 |
| 290. | 3.04 | Cooper County C-4 School District / 873 |
| 291. | 3.04 | Atlanta C-3 Schools / 1,347 |
| 292. | 3.04 | Braymer C-4 School District / 1,849 |
| 293. | 3.04 | Hannibal School District / 22,478 |
| 294. | 3.04 | Delta C-7 School District / 1,000 |
| 295. | 3.04 | Columbia Public Schools / 137,146 |
| 296. | 3.04 | Franklin County R-II School District / 1,498 |
| 297. | 3.04 | Cabool School District / 5,908 |
| 298. | 3.04 | Cass County R-V School District / 2,915 |
| 299. | 3.04 | Pleasant Hill R-III School District / 10,492 |
| 300. | 3.04 | Lamar R-I School District / 7,325 |
| 301. | 3.04 | Cassville R-IV School District / 11,789 |
| 302. | 3.04 | Cole County R-V School District / 4,332 |
| 303. | 3.03 | Belleview R-III School District / 1,304 |
| 304. | 3.03 | West Plains R-VII School District / 13,294 |
| 305. | 3.03 | Jefferson City Public Schools / 72,160 |
| 306. | 3.03 | Grundy County R-V School District / 1,082 |
| 307. | 3.03 | Twin Rivers R-X School District / 5,922 |
| 308. | 3.03 | Kingsville R-I School District / 2,082 |
| 309. | 3.03 | Arcadia Valley R-II School District / 5,924 |
| 310. | 3.03 | Hollister R-V School District / 10,982 |
| 311. | 3.03 | Galena R-II School District / 4,021 |
| 312. | 3.02 | Jackson R-II School District / 29,857 |
| 313. | 3.02 | Lebanon School District / 25,020 |
| 314. | 3.02 | Wright City R-II School District / 10,645 |
| 315. | 3.02 | Savannah R-III School District / 13,762 |
| 316. | 3.02 | Bell City R-II School District / 1,424 |
| 317. | 3.02 | Ladue School District / 27,190 |
| 318. | 3.02 | Centralia R-VI School District / 7,647 |
| 319. | 3.02 | North Nodaway County R-VI School District / 1,354 |
| 320. | 3.02 | East Lynne 40 School District / 1,520 |
| 321. | 3.02 | Hurley R-I School District / 1,782 |
| 322. | 3.02 | Lathrop R-II School District / 4,931 |
| 323. | 3.01 | Osage County R-I School District / 1,321 |
| 324. | 3.01 | Greenville R-II School District / 5,306 |
| 325. | 3.01 | Miller R-II School District / 3,951 |
| 326. | 3.01 | Maries County R-II School District / 5,339 |
| 327. | 3.01 | Gasconade County R-II School District / 11,640 |
| 328. | 3.01 | Lindbergh R-VIII School District / 45,731 |
| 329. | 3.01 | New Franklin R-I School District / 2,600 |
| 330. | 3.01 | Moniteau County R-I School District / 7,167 |
| 331. | 3.01 | Mountain View-Birch Tree R-III School District / 7,261 |
| 332. | 3.01 | Monroe City R-I School District / 5,065 |
| 333. | 3.01 | Greene County R-VIII School District / 12,716 |
| 334. | 3.00 | Fredericktown R-I School District / 10,722 |
| 335. | 3.00 | North Platte County R-I School District / 4,157 |
| 336. | 3.00 | Valley R-VI School District / 3,089 |
| 337. | 3.00 | Diamond R-IV School District / 5,616 |
| 338. | 3.00 | University City School District / 35,920 |
| 339. | 3.00 | Skyline R-II School District / 1,391 |
| 340. | 3.00 | Warrensburg R-VI School District / 25,404 |
| 341. | 3.00 | Mehlville School District / 96,221 |
| 342. | 3.00 | Odessa R-VII School District / 12,195 |
| 343. | 3.00 | Pattonville School District / 40,437 |
| 344. | 3.00 | Westview C-6 School District / 1,194 |
| 345. | 3.00 | North Daviess R-III School District / 819 |
| 346. | 3.00 | Salem R-80 School District / 6,629 |
| 347. | 2.99 | Southwest Livingston County R-I School District / 1,176 |
| 348. | 2.99 | North Callaway R-I School District / 6,412 |
| 349. | 2.99 | Dallas County R-I School District / 13,255 |
| 350. | 2.99 | Sikeston School District / 20,625 |
| 351. | 2.99 | Trenton R-IX School District / 7,590 |
| 352. | 2.99 | Harrisburg R-VIII School District / 3,166 |
| 353. | 2.99 | Parkway School District / 141,963 |
| 354. | 2.99 | Keytesville R-III School District / 1,161 |
| 355. | 2.99 | North Mercer County R-III School District / 1,145 |
| 356. | 2.99 | Center 58 School District / 26,591 |
| 357. | 2.99 | Richland R-I School District / 1,714 |
| 358. | 2.99 | Strafford R-VI School District / 6,530 |
| 359. | 2.98 | Westran R-I School District / 3,728 |
| 360. | 2.98 | Camden County R-II School District / 2,643 |
| 361. | 2.98 | Clever R-V School District / 5,708 |
| 362. | 2.98 | Midway School District / 3,430 |
| 363. | 2.98 | Marion County R-II School District / 1,347 |
| 364. | 2.98 | Camdenton R-III School District / 31,390 |
| 365. | 2.98 | Osborn R-O School District / 733 |
| 366. | 2.98 | Pierce City R-VI School District / 4,164 |
| 367. | 2.98 | Mountain Grove R-III School District / 8,944 |
| 368. | 2.98 | Palmyra R-I School District / 6,748 |
| 369. | 2.98 | Madison C-3 School District / 1,593 |
| 370. | 2.98 | Sarcoxie R-II School District / 3,183 |
| 371. | 2.98 | St. Charles County R-V School District / 10,902 |
| 372. | 2.97 | New York R-IV School District / 268 |
| 373. | 2.97 | Clearwater R-I School District / 7,109 |
| 374. | 2.97 | Appleton City R-II School District / 2,724 |
| 375. | 2.97 | Maries County R-I School District / 4,348 |
| 376. | 2.97 | Neelyville R-IV School District / 3,996 |
| 377. | 2.97 | Boone County R-IV School District / 7,344 |
| 378. | 2.97 | Pemiscot County R-3 School District / 891 |
| 379. | 2.97 | Hickory County R-I School District / 4,837 |
| 380. | 2.97 | Southern Reynolds County R-IV School District / 2,883 |
| 381. | 2.97 | Bolivar R-I School District / 15,522 |
| 382. | 2.97 | Knox County R-I School District / 4,094 |
| 383. | 2.97 | Bucklin R-II School District / 953 |
| 384. | 2.96 | Bakersfield R-IV School District / 1,628 |
| 385. | 2.96 | Ste. Genevieve County R-II School District / 14,625 |
| 386. | 2.96 | Hardeman R-X School District / 471 |
| 387. | 2.96 | Republic School District / 23,032 |
| 388. | 2.96 | Cape Girardeau 63 School District / 38,265 |
| 389. | 2.96 | Dixon R-I School District / 5,341 |
| 390. | 2.96 | Central R-III School District / 11,575 |
| 391. | 2.96 | North St. Francis County R-I School District / 20,784 |
| 392. | 2.96 | Gilliam C-4 School District / 339 |
| 393. | 2.96 | South Callaway R-II Schools / 4,178 |
| 394. | 2.95 | Avenue City R-IX School District / 984 |
| 395. | 2.95 | Doniphan R-I School District / 9,964 |
| 396. | 2.95 | Houston R-I School District / 5,868 |
| 397. | 2.95 | St. Charles R-VI School District / 53,651 |
| 398. | 2.95 | South Nodaway County R-IV School District / 889 |
| 399. | 2.95 | Holden R-III School District / 8,541 |
| 400. | 2.94 | Jasper County R-V School District / 2,935 |
| 401. | 2.94 | Grandview R-II School District / 4,571 |
| 402. | 2.94 | Shelby County R-IV School District / 3,863 |
| 403. | 2.94 | Pleasant View R-VI School District / 425 |
| 404. | 2.94 | Nell Holcomb R-IV School District / 2,835 |
| 405. | 2.93 | Centerville R-I School District / 1,033 |
| 406. | 2.93 | Walnut Grove R-V School District / 1,952 |
| 407. | 2.93 | Stockton R-I School District / 7,432 |
| 408. | 2.93 | Success R-VI School District / 997 |
| 409. | 2.93 | Springfield School District / 205,489 |
| 410. | 2.93 | Concordia School District / 3,854 |
| 411. | 2.93 | Wellington-Napoleon R-IX School District / 2,607 |
| 412. | 2.92 | Clinton County R-III School District / 5,112 |
| 413. | 2.92 | Lesterville R-IV School District / 1,111 |
| 414. | 2.92 | Kirksville R-III School District / 21,566 |
| 415. | 2.92 | Fairview R-XI School District / 3,840 |
| 416. | 2.91 | South Iron County R-I School District / 2,306 |
| 417. | 2.91 | Maryville R-II Schools / 15,779 |
| 418. | 2.91 | Chilhowee R-IV School District / 1,001 |
| 419. | 2.91 | Dexter R-XI School District / 12,732 |
| 420. | 2.91 | Ballard R-II School District / 775 |
| 421. | 2.91 | Southern Boone County R-I School District / 8,399 |
| 422. | 2.91 | Kelso C-7 School District / 2,066 |
| 423. | 2.91 | Spokane R-VII School District / 4,793 |
| 424. | 2.90 | Albany R-III School District / 3,114 |
| 425. | 2.90 | Pattonsburg R-II School District / 1,172 |
| 426. | 2.90 | Polo R-VII School District / 2,122 |
| 427. | 2.90 | Mansfield R-IV School District / 3,743 |
| 428. | 2.90 | Gilman City R-IV School District / 765 |
| 429. | 2.89 | Affton School District / 26,715 |
| 430. | 2.89 | Farmington R-7 School District / 27,513 |
| 431. | 2.89 | Risco R-II School District / 676 |
| 432. | 2.89 | Van Buren R-I School District / 2,839 |
| 433. | 2.89 | Greenfield R-IV School District / 2,778 |
| 434. | 2.89 | North Andrew County R-VI School District / 1,738 |
| 435. | 2.89 | Strasburg C-3 School District / 987 |
| 436. | 2.89 | Orrick R-XI School District / 1,866 |
| 437. | 2.89 | Clinton School District / 11,756 |
| 438. | 2.88 | Calhoun R-VIII School District / 1,081 |
| 439. | 2.88 | Scotland County R-I School District / 4,377 |
| 440. | 2.88 | Brentwood School District / 8,108 |
| 441. | 2.88 | Rock Port R-II School District / 2,237 |
| 442. | 2.87 | Iron County C-4 School District / 2,938 |
| 443. | 2.87 | Billings R-IV School District / 2,699 |
| 444. | 2.87 | Boncl R-X School District / 446 |
| 445. | 2.87 | Gasconade County R-I School District / 7,505 |
| 446. | 2.87 | Louisiana R-II School District / 4,356 |
| 447. | 2.87 | Leesville R-IX School District / 1,183 |
| 448. | 2.86 | Blue Eye School District / 5,297 |
| 449. | 2.86 | Morgan County R-I School District / 5,482 |
| 450. | 2.85 | Ridgeway R-V School District / 764 |
| 451. | 2.85 | St. Elizabeth R-IV School District / 1,251 |
| 452. | 2.85 | Lincoln R-II School District / 3,969 |
| 453. | 2.85 | Boonville School District / 11,386 |
| 454. | 2.84 | Newtown-Harris R-III School District / 425 |
| 455. | 2.84 | Cowgill R-VI School District / 370 |
| 456. | 2.83 | Maplewood-Richmond Heights School District / 14,395 |
| 457. | 2.83 | Fairfax R-III School District / 1,097 |
| 458. | 2.83 | Clayton School District / 18,608 |
| 459. | 2.83 | Lewis County C-1 School District / 6,509 |
| 460. | 2.83 | Couch R-I School District / 1,144 |
| 461. | 2.83 | Eminence R-I School District / 2,160 |
| 462. | 2.82 | Laclede County R-I School District / 3,337 |
| 463. | 2.82 | Oak Hill R-I School District / 1,672 |
| 464. | 2.82 | Missouri City 56 School District / 485 |
| 465. | 2.82 | Marionville R-IX School District / 4,086 |
| 466. | 2.81 | Hudson R-IX School District / 371 |
| 467. | 2.81 | Miller County R-III School District / 1,264 |
| 468. | 2.81 | Montgomery County R-II School District / 8,817 |
| 469. | 2.81 | Lexington R-V School District / 5,765 |
| 470. | 2.80 | Gainesville R-V School District / 4,700 |
| 471. | 2.80 | Ralls County R-II School District / 5,553 |
| 472. | 2.79 | Bismarck R-V School District / 3,306 |
| 473. | 2.79 | Nodaway-Holt R-VII School District / 1,643 |
| 474. | 2.79 | Oregon-Howell R-III School District / 1,551 |
| 475. | 2.78 | Paris R-II School District / 3,081 |
| 476. | 2.78 | Santa Fe R-X School District / 2,357 |
| 477. | 2.78 | Fulton School District / 18,984 |
| 478. | 2.78 | West Nodaway County R-I School District / 1,725 |
| 479. | 2.78 | Forsyth R-III School District / 8,220 |
| 480. | 2.78 | Humansville R-IV School District / 2,752 |
| 481. | 2.77 | Wellsville-Middletown R-I School District / 2,649 |
| 482. | 2.77 | South Holt County R-I School District / 1,974 |
| 483. | 2.77 | Bevier C-4 School District / 1,290 |
| 484. | 2.76 | Montrose R-XIV School District / 774 |
| 485. | 2.76 | School of The Osage R-II School District / 12,016 |
| 486. | 2.76 | Pulaski County R-IV School District / 3,524 |
| 487. | 2.76 | Mark Twain R-VIII School District / 698 |
| 488. | 2.76 | Warsaw R-IX School District / 10,670 |
| 489. | 2.76 | Puxico R-VIII School District / 4,626 |
| 490. | 2.75 | Altenburg 48 School District / 995 |
| 491. | 2.75 | Macon County R-IV School District / 857 |
| 492. | 2.75 | Climax Springs R-IV School District / 2,309 |
| 493. | 2.75 | Tarkio R-I School District / 2,330 |
| 494. | 2.75 | Johnson County R-VII School District / 3,040 |
| 495. | 2.74 | Lakeland R-III School District / 2,679 |
| 496. | 2.74 | Higbee R-VIII School District / 1,277 |
| 497. | 2.73 | El Dorado Springs R-II School District / 7,184 |
| 498. | 2.73 | Weaubleau R-III School District / 2,613 |
| 499. | 2.73 | Chadwick R-I School District / 1,315 |
| 500. | 2.73 | Stet R-XV School District / 510 |
| 501. | 2.73 | Davis R-XII School District / 439 |
| 502. | 2.73 | Winston R-VI School District / 1,067 |
| 503. | 2.73 | Cainsville R-I School District / 438 |
| 504. | 2.71 | Reeds Spring R-IV School District / 16,061 |
| 505. | 2.70 | Orearville R-IV School District / 304 |
| 506. | 2.69 | Wheatland R-II School District / 2,974 |
| 507. | 2.69 | Dora R-III School District / 1,920 |
| 508. | 2.69 | Bosworth R-V School District / 605 |
| 509. | 2.68 | Osceola School District / 3,084 |
| 510. | 2.67 | Craig R-III School District / 676 |
| 511. | 2.67 | Thornfield R-I School District / 626 |
| 512. | 2.66 | Putnam County R-I School District / 4,693 |
| 513. | 2.64 | Swedeborg R-III School District / 550 |
| 514. | 2.60 | Kingston 42 School District / 433 |
| 515. | 2.59 | Gasconade C-4 School District / 805 |
| 516. | 2.58 | Hermitage R-IV School District / 3,014 |
| 517. | 2.55 | Worth County R-III School District / 2,140 |
| 518. | 2.54 | Lutie R-VI School District / 1,500 |
| 519. | 2.51 | Roscoe C-1 School District / 579 |
| 520. | 2.50 | Holt County R-II School District / 1,680 |
| 521. | 2.39 | Shell Knob 78 School District / 2,759 |
Please note that we only rank locations with 'Average Family Size' data. The rank above might not be a complete list. Locations without 'Average Family Size' 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.
