| Rank | Average Household Size ▼ | School District / Population |
| 1. | 3.44 | Avilla R-XIII School District / 1,440 |
| 2. | 3.41 | Middle Grove C-1 School District / 630 |
| 3. | 3.38 | Moniteau County R-V School District / 978 |
| 4. | 3.26 | Tri-County R-VII School District / 2,023 |
| 5. | 3.20 | Troy R-III School District / 31,887 |
| 6. | 3.20 | Richwoods R-VII School District / 1,412 |
| 7. | 3.18 | Winfield School District / 9,107 |
| 8. | 3.17 | Seymour R-II School District / 6,303 |
| 9. | 3.14 | Cole County R-II School District / 6,384 |
| 10. | 3.13 | High Point R-III School District / 722 |
| 11. | 3.12 | Silex R-I School District / 2,237 |
| 12. | 3.10 | Elsberry R-II School District / 5,062 |
| 13. | 3.08 | Lone Jack C-6 School District / 2,894 |
| 14. | 3.06 | Fort Osage R-I School District / 26,071 |
| 15. | 3.03 | Maysville R-I School District / 4,061 |
| 16. | 3.01 | Pettis County R-V School District / 2,180 |
| 17. | 3.00 | Crawford County R-I School District / 6,974 |
| 18. | 3.00 | Wellston School District / 2,555 |
| 19. | 2.99 | Strain-Japan R-XVI School District / 1,030 |
| 20. | 2.97 | Crane R-III School District / 4,553 |
| 21. | 2.96 | Green Ridge R-VIII School District / 2,355 |
| 22. | 2.96 | East Lynne 40 School District / 1,485 |
| 23. | 2.94 | Clarksburg C-2 School District / 851 |
| 24. | 2.94 | Kingston K-14 School District / 5,287 |
| 25. | 2.94 | Jefferson C-123 School District / 902 |
| 26. | 2.93 | Kearney R-I School District / 19,654 |
| 27. | 2.92 | Oak Grove R-VI School District / 10,014 |
| 28. | 2.91 | Hurley R-I School District / 1,847 |
| 29. | 2.91 | Skyline R-II School District / 1,174 |
| 30. | 2.90 | Knob Noster R-VIII School District / 9,263 |
| 31. | 2.90 | Calhoun R-VIII School District / 1,024 |
| 32. | 2.90 | Grandview R-II School District / 4,420 |
| 33. | 2.89 | Sturgeon R-V School District / 3,551 |
| 34. | 2.89 | Wheaton R-III School District / 2,366 |
| 35. | 2.88 | Windsor C-1 School District / 18,445 |
| 36. | 2.87 | Grain Valley R-V School District / 13,488 |
| 37. | 2.87 | Miller R-II School District / 4,228 |
| 38. | 2.86 | La Monte R-IV School District / 1,822 |
| 39. | 2.86 | McDonald County R-I School District / 18,014 |
| 40. | 2.86 | Marquand-Zion School District / 1,562 |
| 41. | 2.86 | Verona R-VII School District / 2,345 |
| 42. | 2.84 | Lawson R-XIV School District / 5,837 |
| 43. | 2.84 | Kingsville R-I School District / 2,132 |
| 44. | 2.84 | Adrian County R-III School District / 4,123 |
| 45. | 2.84 | Pike County R-III School District / 3,433 |
| 46. | 2.84 | Halfway R-III School District / 2,399 |
| 47. | 2.84 | Richards R-V School District / 3,358 |
| 48. | 2.83 | Rockwood School District / 113,604 |
| 49. | 2.83 | Zalma R-V School District / 1,648 |
| 50. | 2.83 | Scott County R-IV School District / 6,102 |
| 51. | 2.83 | Pleasant Hill R-III School District / 10,217 |
| 52. | 2.83 | Lonedell R-XIV School District / 3,458 |
| 53. | 2.83 | Kelso C-7 School District / 2,064 |
| 54. | 2.82 | Blackwater R-II School District / 1,008 |
| 55. | 2.82 | Raymore-Peculiar R-II School District / 30,731 |
| 56. | 2.82 | Jasper County R-V School District / 2,773 |
| 57. | 2.82 | Plainview R-VIII School District / 947 |
| 58. | 2.80 | Cole County R-I School District / 4,356 |
| 59. | 2.80 | Jefferson County R-VII School District / 6,244 |
| 60. | 2.80 | Norwood R-I School District / 2,273 |
| 61. | 2.80 | Buchanan County R-IV School District / 2,309 |
| 62. | 2.79 | Bakersfield R-IV School District / 1,408 |
| 63. | 2.79 | Meadville R-IV School District / 1,209 |
| 64. | 2.79 | Northeast Nodaway County R-V School District / 1,619 |
| 65. | 2.79 | Osage County R-III School District / 6,465 |
| 66. | 2.79 | Mid-Buchanan County R-V School District / 4,533 |
| 67. | 2.79 | Fort Zumwalt R-II School District / 106,678 |
| 68. | 2.78 | Clever R-V School District / 5,071 |
| 69. | 2.78 | Marion County Early R-V School District / 3,453 |
| 70. | 2.78 | Pleasant View R-VI School District / 501 |
| 71. | 2.78 | Lee's Summit R-7 School District / 82,119 |
| 72. | 2.78 | Tina-Avalon R-II School District / 1,152 |
| 73. | 2.77 | Renick R-V School District / 1,570 |
| 74. | 2.77 | Smithton R-VI School District / 3,119 |
| 75. | 2.77 | Carthage R-IX School District / 22,866 |
| 76. | 2.76 | Junction Hill C-12 School District / 1,834 |
| 77. | 2.76 | Marshfield R-I School District / 17,749 |
| 78. | 2.76 | Leeton R-X School District / 1,963 |
| 79. | 2.76 | Pleasant Hope R-VI School District / 5,024 |
| 80. | 2.75 | Niangua R-V School District / 2,128 |
| 81. | 2.75 | Blue Springs R-IV School District / 77,407 |
| 82. | 2.74 | Strasburg C-3 School District / 870 |
| 83. | 2.74 | Laclede County C-5 School District / 4,080 |
| 84. | 2.74 | Shawnee R-III School District / 716 |
| 85. | 2.74 | Seneca R-VII School District / 7,613 |
| 86. | 2.74 | Liberty Schools / 48,871 |
| 87. | 2.74 | Winona R-III School District / 2,857 |
| 88. | 2.74 | Cooper County C-4 School District / 974 |
| 89. | 2.73 | Pettis County R-XII School District / 1,159 |
| 90. | 2.73 | Avenue City R-IX School District / 948 |
| 91. | 2.73 | Carl Junction R-I School District / 14,451 |
| 92. | 2.73 | New York R-IV School District / 248 |
| 93. | 2.72 | Summersville R-II School District / 2,988 |
| 94. | 2.72 | Nell Holcomb R-IV School District / 2,742 |
| 95. | 2.72 | Wentzville R-IV School District / 60,581 |
| 96. | 2.72 | East Buchanan County C-1 School District / 4,700 |
| 97. | 2.72 | Green Forest R-II School District / 2,194 |
| 98. | 2.71 | Neosho R-5 School District / 25,700 |
| 99. | 2.71 | Howell Valley R-I School District / 2,102 |
| 100. | 2.70 | Sarcoxie R-II School District / 3,974 |
| 101. | 2.70 | Diamond R-IV School District / 5,195 |
| 102. | 2.70 | Dadeville R-II School District / 1,048 |
| 103. | 2.70 | Waynesville R-VI Schools / 29,049 |
| 104. | 2.70 | North Harrison R-III School District / 1,613 |
| 105. | 2.69 | Nixa School District / 26,011 |
| 106. | 2.69 | Oregon-Howell R-III School District / 1,635 |
| 107. | 2.69 | Purdy R-II School District / 3,983 |
| 108. | 2.69 | Johnson County R-VII School District / 2,749 |
| 109. | 2.69 | Dallas County R-I School District / 13,425 |
| 110. | 2.69 | Hickman Mills C-1 School District / 52,376 |
| 111. | 2.68 | Francis Howell School District / 112,230 |
| 112. | 2.68 | Spring Bluff R-XV School District / 1,825 |
| 113. | 2.68 | Webb City R-VII School District / 20,433 |
| 114. | 2.68 | Ozark R-VI School District / 28,542 |
| 115. | 2.67 | Smithville School District / 11,345 |
| 116. | 2.67 | Fox C-6 School District / 66,958 |
| 117. | 2.67 | Hillsboro R-III School District / 20,208 |
| 118. | 2.67 | Mount Vernon R-V School District / 9,933 |
| 119. | 2.67 | Bismarck R-V School District / 3,156 |
| 120. | 2.66 | New Bloomfield R-III School District / 3,978 |
| 121. | 2.66 | Mountain Grove R-III School District / 9,074 |
| 122. | 2.66 | Aurora R-8 School District / 10,286 |
| 123. | 2.66 | West Platte County R-II School District / 4,534 |
| 124. | 2.66 | St. Clair R-XIII School District / 12,162 |
| 125. | 2.66 | Willard School District / 22,394 |
| 126. | 2.65 | Canton School District / 4,762 |
| 127. | 2.65 | Ripley County R-III School District / 913 |
| 128. | 2.64 | Bowling Green R-I School District / 10,955 |
| 129. | 2.64 | Holden R-III School District / 8,335 |
| 130. | 2.64 | Ripley County R-IV School District / 1,089 |
| 131. | 2.64 | Northwest R-I School District / 45,868 |
| 132. | 2.64 | Franklin County R-II School District / 1,326 |
| 133. | 2.64 | Taneyville R-II School District / 1,803 |
| 134. | 2.64 | Meadow Heights R-II School District / 3,688 |
| 135. | 2.64 | Laquey R-V School District / 3,984 |
| 136. | 2.64 | Fair Grove R-10 School District / 4,977 |
| 137. | 2.63 | Fairview R-XI School District / 4,355 |
| 138. | 2.63 | Iberia R-V School District / 5,018 |
| 139. | 2.63 | Hume R-VIII School District / 713 |
| 140. | 2.63 | Adair County R-II School District / 1,486 |
| 141. | 2.63 | Harrisonville R-IX School District / 14,047 |
| 142. | 2.63 | Scott City R-I School District / 5,453 |
| 143. | 2.63 | Ava R-I School District / 8,933 |
| 144. | 2.63 | East Newton County R-VI School District / 8,427 |
| 145. | 2.63 | Monett R-I School District / 12,572 |
| 146. | 2.63 | De Soto School District / 16,857 |
| 147. | 2.63 | Jennings School District / 17,226 |
| 148. | 2.63 | Wright City R-II School District / 9,580 |
| 149. | 2.63 | Bradleyville R-I School District / 1,029 |
| 150. | 2.62 | Bronaugh R-VII School District / 1,538 |
| 151. | 2.62 | Potosi R-III School District / 12,924 |
| 152. | 2.62 | Richland R-I School District / 1,940 |
| 153. | 2.62 | Prairie Home R-V School District / 1,098 |
| 154. | 2.62 | Plato R-V School District / 3,324 |
| 155. | 2.62 | Lamar R-I School District / 7,458 |
| 156. | 2.62 | St. Elizabeth R-IV School District / 1,248 |
| 157. | 2.62 | Exeter R-VI School District / 2,181 |
| 158. | 2.61 | Union Star R-II School District / 991 |
| 159. | 2.61 | Name N/A / 95,371 |
| 160. | 2.61 | Hardeman R-X School District / 626 |
| 161. | 2.61 | Rich Hill R-IV School District / 2,687 |
| 162. | 2.61 | Washington School District / 32,083 |
| 163. | 2.60 | Greene County R-VIII School District / 11,812 |
| 164. | 2.60 | Milan C-2 School District / 3,621 |
| 165. | 2.60 | North Callaway R-I School District / 5,957 |
| 166. | 2.60 | Osborn R-O School District / 714 |
| 167. | 2.59 | Morgan County R-II School District / 12,262 |
| 168. | 2.59 | Union R-XI School District / 18,903 |
| 169. | 2.59 | Belton 124 School District / 27,349 |
| 170. | 2.59 | Leopold R-III School District / 855 |
| 171. | 2.59 | Delta C-7 School District / 1,183 |
| 172. | 2.59 | Community R-VI School District / 2,112 |
| 173. | 2.59 | Sunrise R-IX School District / 3,301 |
| 174. | 2.59 | Sparta R-III School District / 3,988 |
| 175. | 2.59 | Sheldon R-VIII School District / 1,275 |
| 176. | 2.58 | Meramec Valley R-III School District / 22,290 |
| 177. | 2.58 | Fordland R-III School District / 3,433 |
| 178. | 2.58 | Cabool School District / 5,215 |
| 179. | 2.58 | Warren County R-III School District / 17,048 |
| 180. | 2.58 | Cass County R-V School District / 2,833 |
| 181. | 2.58 | North Wood R-IV School District / 1,960 |
| 181. | 2.58 | Midway School District / 3,528 |
| 183. | 2.58 | Strafford R-VI School District / 5,721 |
| 184. | 2.58 | East Prairie R-II School District / 5,627 |
| 185. | 2.58 | Moniteau County C-1 School District / 1,347 |
| 186. | 2.57 | Savannah R-III School District / 13,623 |
| 187. | 2.57 | Thornfield R-I School District / 659 |
| 188. | 2.57 | Grandview C-4 School District / 31,866 |
| 189. | 2.57 | Naylor R-II School District / 1,930 |
| 189. | 2.57 | Linn County R-I School District / 1,737 |
| 191. | 2.57 | Festus R-6 School District / 17,058 |
| 192. | 2.57 | Bell City R-II School District / 1,447 |
| 193. | 2.57 | Central R-III School District / 10,808 |
| 194. | 2.57 | Glenwood R-VIII School District / 2,296 |
| 195. | 2.57 | Dora R-III School District / 1,605 |
| 196. | 2.57 | Phelps County R-III School District / 1,908 |
| 197. | 2.57 | Stewartsville C-2 School District / 1,153 |
| 198. | 2.57 | Cole County R-V School District / 4,716 |
| 199. | 2.56 | South Callaway R-II Schools / 4,583 |
| 200. | 2.56 | Moniteau County R-VI School District / 5,170 |
| 201. | 2.56 | Raymondville R-7 School District / 1,092 |
| 202. | 2.56 | Spokane R-VII School District / 4,379 |
| 203. | 2.56 | Billings R-IV School District / 2,848 |
| 204. | 2.56 | Dunklin R-V School District / 9,470 |
| 205. | 2.56 | Wellington-Napoleon R-IX School District / 2,554 |
| 206. | 2.56 | Chilhowee R-IV School District / 1,031 |
| 207. | 2.55 | Butler R-V School District / 6,541 |
| 208. | 2.55 | Riverview Gardens School District / 37,564 |
| 209. | 2.55 | Bloomfield School District / 4,554 |
| 210. | 2.55 | Westview C-6 School District / 1,148 |
| 211. | 2.55 | Bernie School District / 3,430 |
| 212. | 2.55 | Marion County R-II School District / 1,425 |
| 213. | 2.55 | Centralia R-VI School District / 7,042 |
| 214. | 2.55 | Northeast Randolph County R-IV School District / 1,939 |
| 215. | 2.54 | Lockwood R-I School District / 2,219 |
| 216. | 2.54 | Maries County R-I School District / 4,220 |
| 217. | 2.54 | Galena R-II School District / 3,065 |
| 218. | 2.54 | Winston R-VI School District / 1,139 |
| 219. | 2.54 | Bolivar R-I School District / 15,760 |
| 220. | 2.54 | West St. Francis County R-IV School District / 4,884 |
| 221. | 2.54 | Willow Springs R-IV School District / 7,357 |
| 222. | 2.54 | Fair Play R-II School District / 2,571 |
| 223. | 2.54 | Clarkton C-4 School District / 2,140 |
| 224. | 2.53 | Chadwick R-I School District / 1,305 |
| 225. | 2.53 | Southern Boone County R-I School District / 7,140 |
| 226. | 2.53 | Holcomb R-III School District / 2,490 |
| 227. | 2.53 | Oran R-III School District / 2,252 |
| 228. | 2.52 | New Haven School District / 2,592 |
| 229. | 2.52 | Mirabile C-1 School District / 308 |
| 230. | 2.52 | Ladue School District / 26,071 |
| 231. | 2.52 | Jackson R-II School District / 28,032 |
| 232. | 2.52 | Woodland R-IV School District / 5,595 |
| 233. | 2.52 | Thayer R-II School District / 4,586 |
| 234. | 2.52 | Harrisburg R-VIII School District / 3,186 |
| 235. | 2.52 | North Platte County R-I School District / 4,083 |
| 236. | 2.52 | Miami R-I School District / 1,274 |
| 237. | 2.52 | Liberal R-II School District / 3,280 |
| 238. | 2.52 | Excelsior Springs 40 School District / 17,807 |
| 239. | 2.52 | St. Joseph School District / 79,802 |
| 240. | 2.52 | Ash Grove R-IV School District / 5,145 |
| 241. | 2.52 | Perry County 32 School District / 17,361 |
| 242. | 2.51 | Green City R-I School District / 1,961 |
| 243. | 2.51 | Boonville School District / 11,672 |
| 244. | 2.51 | Macks Creek R-V School District / 2,017 |
| 245. | 2.51 | Delta R-V School District / 2,318 |
| 246. | 2.51 | Adair County R-I School District / 1,695 |
| 247. | 2.50 | Republic School District / 20,069 |
| 248. | 2.50 | Livingston County R-III School District / 592 |
| 249. | 2.50 | North St. Francis County R-I School District / 21,238 |
| 250. | 2.50 | Cooter R-IV School District / 749 |
| 251. | 2.50 | Camden County R-II School District / 2,569 |
| 252. | 2.50 | Luray 33 School District / 509 |
| 253. | 2.49 | Hardin-Central C-2 School District / 983 |
| 254. | 2.49 | Park Hill School District / 61,740 |
| 255. | 2.49 | Moniteau County R-I School District / 6,866 |
| 256. | 2.49 | Hazelwood School District / 119,118 |
| 257. | 2.49 | Osage County R-II School District / 4,748 |
| 258. | 2.49 | North Daviess R-III School District / 790 |
| 259. | 2.49 | Steelville School District / 5,179 |
| 260. | 2.49 | School of The Osage R-II School District / 11,611 |
| 261. | 2.49 | Southwest R-V School District / 4,256 |
| 262. | 2.49 | Sedalia 200 School District / 29,026 |
| 263. | 2.49 | Laclede County R-I School District / 3,772 |
| 264. | 2.49 | Concordia School District / 4,089 |
| 265. | 2.49 | Independence Public Schools / 71,310 |
| 266. | 2.48 | East Carter County R-II School District / 4,112 |
| 267. | 2.48 | Hancock Place School District / 8,113 |
| 268. | 2.48 | Howard County R-II School District / 2,455 |
| 269. | 2.48 | North Nodaway County R-VI School District / 1,298 |
| 270. | 2.48 | North Andrew County R-VI School District / 1,704 |
| 271. | 2.48 | Valley R-VI School District / 2,949 |
| 272. | 2.48 | Gasconade County R-II School District / 11,595 |
| 273. | 2.47 | Sullivan School District / 11,324 |
| 274. | 2.47 | Raytown C-2 School District / 58,655 |
| 275. | 2.47 | Gentry County R-II School District / 1,803 |
| 276. | 2.47 | Iron County C-4 School District / 3,078 |
| 277. | 2.46 | Hickory County R-I School District / 4,610 |
| 278. | 2.46 | Gainesville R-V School District / 4,785 |
| 279. | 2.46 | Hudson R-IX School District / 404 |
| 280. | 2.46 | Van Buren R-I School District / 2,606 |
| 281. | 2.46 | St. Charles County R-V School District / 9,255 |
| 282. | 2.46 | Manes R-V School District / 620 |
| 283. | 2.46 | Odessa R-VII School District / 11,333 |
| 284. | 2.46 | Polo R-VII School District / 2,159 |
| 285. | 2.46 | South Pemiscot Schools / 3,895 |
| 286. | 2.45 | Ste. Genevieve County R-II School District / 14,991 |
| 287. | 2.45 | Camdenton R-III School District / 27,766 |
| 288. | 2.45 | Henry County R-I School District / 4,426 |
| 289. | 2.45 | Palmyra R-I School District / 6,234 |
| 290. | 2.45 | Warrensburg R-VI School District / 25,379 |
| 291. | 2.45 | Reeds Spring R-IV School District / 15,686 |
| 292. | 2.45 | Drexel R-IV School District / 1,752 |
| 293. | 2.45 | South Nodaway County R-IV School District / 846 |
| 294. | 2.45 | Hartville R-II School District / 4,862 |
| 295. | 2.44 | West Plains R-VII School District / 12,882 |
| 296. | 2.44 | Pilot Grove C-4 School District / 1,597 |
| 297. | 2.44 | Crocker School District / 3,504 |
| 298. | 2.44 | La Plata R-II School District / 2,518 |
| 299. | 2.44 | Weaubleau R-III School District / 3,023 |
| 300. | 2.44 | North Pemiscot County R-I School District / 1,917 |
| 301. | 2.44 | Blue Eye School District / 5,221 |
| 302. | 2.43 | Ferguson-Florissant School District / 71,078 |
| 303. | 2.43 | Walnut Grove R-V School District / 1,926 |
| 304. | 2.43 | Dixon R-I School District / 5,972 |
| 305. | 2.43 | Altenburg 48 School District / 1,121 |
| 306. | 2.43 | Clark County R-I School District / 5,595 |
| 307. | 2.42 | Ralls County R-II School District / 5,691 |
| 308. | 2.42 | Greenville R-II School District / 5,124 |
| 309. | 2.42 | Climax Springs R-IV School District / 3,188 |
| 310. | 2.42 | Holliday C-2 School District / 542 |
| 311. | 2.42 | St. James R-I School District / 9,378 |
| 312. | 2.42 | Fredericktown R-I School District / 10,511 |
| 313. | 2.42 | Normandy School District / 34,974 |
| 314. | 2.42 | Bevier C-4 School District / 1,623 |
| 315. | 2.41 | Van-Far School District / 6,777 |
| 316. | 2.41 | Poplar Bluff R-I School District / 32,061 |
| 317. | 2.41 | Lebanon School District / 24,836 |
| 318. | 2.41 | Mehlville School District / 97,170 |
| 319. | 2.41 | Nevada R-V School District / 14,322 |
| 320. | 2.41 | Lathrop R-II School District / 4,945 |
| 321. | 2.41 | Bunker R-III School District / 1,460 |
| 322. | 2.41 | Webster Groves School District / 31,248 |
| 323. | 2.41 | Lincoln R-II School District / 4,178 |
| 324. | 2.41 | Davis R-XII School District / 491 |
| 325. | 2.41 | Ballard R-II School District / 746 |
| 326. | 2.41 | Marceline R-V School District / 3,948 |
| 327. | 2.40 | Pattonsburg R-II School District / 1,106 |
| 328. | 2.40 | Stet R-XV School District / 579 |
| 329. | 2.40 | Westran R-I School District / 3,847 |
| 330. | 2.40 | St. Louis City School District / 355,078 |
| 331. | 2.40 | Atlanta C-3 Schools / 1,405 |
| 332. | 2.40 | Miller County R-III School District / 1,577 |
| 333. | 2.39 | Gasconade County R-I School District / 8,145 |
| 334. | 2.39 | Farmington R-7 School District / 25,861 |
| 335. | 2.39 | Salem R-80 School District / 7,012 |
| 336. | 2.39 | Sweet Springs R-VII School District / 3,042 |
| 337. | 2.39 | Crystal City 47 School District / 3,857 |
| 338. | 2.39 | Newtown-Harris R-III School District / 557 |
| 339. | 2.39 | Joplin R-VIII School District / 60,082 |
| 340. | 2.39 | Osage County R-I School District / 1,285 |
| 341. | 2.39 | Otterville R-VI School District / 1,317 |
| 342. | 2.39 | Parkway School District / 137,900 |
| 343. | 2.39 | Crawford County R-2 School District / 8,212 |
| 344. | 2.39 | Fulton School District / 19,082 |
| 345. | 2.38 | Hannibal School District / 22,113 |
| 346. | 2.38 | Orrick R-XI School District / 2,184 |
| 347. | 2.38 | Senath-Hornersville C-8 School District / 4,383 |
| 348. | 2.37 | Montgomery County R-II School District / 8,288 |
| 349. | 2.37 | Kirkwood School District / 39,554 |
| 350. | 2.37 | Gallatin R-V School District / 3,069 |
| 351. | 2.37 | Mountain View-Birch Tree R-III School District / 6,801 |
| 352. | 2.37 | Morgan County R-I School District / 5,041 |
| 353. | 2.37 | Gilman City R-IV School District / 819 |
| 354. | 2.37 | Northeast Vernon County R-I School District / 2,038 |
| 355. | 2.37 | Oak Ridge R-VI School District / 2,000 |
| 356. | 2.37 | Kansas City School District / 238,276 |
| 357. | 2.36 | Grundy County R-V School District / 1,128 |
| 358. | 2.36 | Marshall School District / 14,271 |
| 359. | 2.36 | Maries County R-II School District / 5,183 |
| 360. | 2.36 | Advance R-IV School District / 2,893 |
| 361. | 2.36 | Caruthersville School District / 5,992 |
| 362. | 2.36 | Golden City School District / 1,783 |
| 363. | 2.36 | Cassville R-IV School District / 11,327 |
| 364. | 2.36 | Platte County R-III School District / 18,819 |
| 365. | 2.35 | Lutie R-VI School District / 1,488 |
| 366. | 2.35 | Lindbergh R-VIII School District / 46,625 |
| 367. | 2.35 | Eminence R-I School District / 2,407 |
| 368. | 2.35 | North Kansas City School District / 123,250 |
| 369. | 2.35 | King City R-I School District / 1,726 |
| 370. | 2.34 | Jefferson City Public Schools / 69,264 |
| 371. | 2.34 | Scott County Central Schools / 1,704 |
| 372. | 2.34 | Cameron R-I School District / 12,301 |
| 373. | 2.34 | Pemiscot County R-3 School District / 820 |
| 374. | 2.34 | Arcadia Valley R-II School District / 5,922 |
| 375. | 2.34 | Stockton R-I School District / 7,140 |
| 376. | 2.34 | South Harrison School District / 5,175 |
| 377. | 2.34 | Swedeborg R-III School District / 550 |
| 377. | 2.34 | Montrose R-XIV School District / 880 |
| 379. | 2.34 | Gideon School District / 1,664 |
| 380. | 2.34 | Tarkio R-I School District / 2,570 |
| 381. | 2.34 | Sikeston School District / 21,958 |
| 382. | 2.34 | Shelby County C-1 School District / 2,017 |
| 383. | 2.34 | Pulaski County R-IV School District / 3,403 |
| 384. | 2.34 | Lakeland R-III School District / 2,834 |
| 385. | 2.34 | Hamilton R-II School District / 3,899 |
| 386. | 2.34 | Laredo R-VII School District / 479 |
| 387. | 2.33 | Norborne R-VIII School District / 1,323 |
| 388. | 2.33 | Pierce City R-VI School District / 3,824 |
| 389. | 2.33 | Sherwood Cass R-VIII School District / 4,843 |
| 390. | 2.33 | Cole Camp R-I School District / 4,261 |
| 391. | 2.33 | Carrollton R-VII School District / 5,583 |
| 392. | 2.33 | Lexington R-V School District / 5,879 |
| 393. | 2.33 | Everton R-III School District / 1,338 |
| 394. | 2.33 | Boone County R-IV School District / 6,312 |
| 395. | 2.32 | New Franklin R-I School District / 2,495 |
| 396. | 2.32 | Belleview R-III School District / 1,252 |
| 397. | 2.32 | Ritenour School District / 43,393 |
| 398. | 2.32 | Branson R-IV School District / 22,037 |
| 399. | 2.31 | Santa Fe R-X School District / 2,484 |
| 400. | 2.31 | Doniphan R-I School District / 9,668 |
| 401. | 2.31 | Leesville R-IX School District / 1,054 |
| 402. | 2.31 | Kirbyville R-VI School District / 2,392 |
| 403. | 2.31 | Missouri City 56 School District / 677 |
| 404. | 2.31 | Mark Twain R-VIII School District / 642 |
| 405. | 2.31 | Rolla 31 School District / 29,068 |
| 406. | 2.31 | Moberly School District / 16,210 |
| 407. | 2.31 | Ridgeway R-V School District / 798 |
| 408. | 2.30 | Callao C-8 School District / 751 |
| 409. | 2.30 | Cainsville R-I School District / 509 |
| 410. | 2.30 | Spickard R-II School District / 488 |
| 411. | 2.30 | Braymer C-4 School District / 1,724 |
| 412. | 2.30 | Scotland County R-I School District / 4,343 |
| 413. | 2.30 | Fairfax R-III School District / 1,126 |
| 414. | 2.30 | Richmond R-XVI School District / 9,900 |
| 415. | 2.29 | Gasconade C-4 School District / 811 |
| 416. | 2.29 | Craig R-III School District / 859 |
| 417. | 2.29 | West Nodaway County R-I School District / 1,704 |
| 418. | 2.29 | Kennett 39 School District / 10,726 |
| 419. | 2.29 | Revere C-3 School District / 627 |
| 420. | 2.29 | St. Charles R-VI School District / 52,374 |
| 421. | 2.29 | Orearville R-IV School District / 375 |
| 422. | 2.29 | Brookfield R-III School District / 6,487 |
| 423. | 2.29 | Wellsville-Middletown R-I School District / 2,853 |
| 424. | 2.28 | Neelyville R-IV School District / 3,101 |
| 425. | 2.28 | Charleston R-I School District / 7,871 |
| 426. | 2.28 | Mexico 59 School District / 14,276 |
| 427. | 2.28 | Bosworth R-V School District / 791 |
| 428. | 2.28 | Humansville R-IV School District / 3,215 |
| 429. | 2.28 | Bayless School District / 13,171 |
| 430. | 2.28 | Licking School District / 5,818 |
| 431. | 2.28 | Oak Hill R-I School District / 1,182 |
| 432. | 2.27 | Dexter R-XI School District / 12,216 |
| 433. | 2.27 | Cape Girardeau 63 School District / 37,508 |
| 434. | 2.27 | Monroe City R-I School District / 5,057 |
| 435. | 2.27 | Lesterville R-IV School District / 1,172 |
| 436. | 2.27 | Alton R-IV School District / 3,525 |
| 437. | 2.26 | Fayette R-III School District / 4,910 |
| 438. | 2.26 | Macon County R-IV School District / 918 |
| 439. | 2.26 | Twin Rivers R-X School District / 5,356 |
| 440. | 2.26 | Eldon R-I School District / 11,357 |
| 441. | 2.26 | Southland School District / 2,106 |
| 442. | 2.26 | Bucklin R-II School District / 979 |
| 443. | 2.25 | Success R-VI School District / 947 |
| 444. | 2.25 | Kirksville R-III School District / 21,415 |
| 445. | 2.25 | Hale R-I School District / 838 |
| 446. | 2.25 | Northwestern R-I School District / 770 |
| 447. | 2.25 | Miami R-I School District / 517 |
| 448. | 2.25 | Houston R-I School District / 5,759 |
| 449. | 2.24 | Hayti R-II School District / 3,876 |
| 450. | 2.24 | Mansfield R-IV School District / 3,588 |
| 451. | 2.24 | Scott County R-II School District / 3,813 |
| 452. | 2.24 | Maryville R-II Schools / 14,388 |
| 453. | 2.24 | Southwest Livingston County R-I School District / 1,123 |
| 454. | 2.23 | Clinton County R-III School District / 4,946 |
| 455. | 2.23 | Osceola School District / 3,086 |
| 456. | 2.23 | South Holt County R-I School District / 1,755 |
| 457. | 2.22 | Higbee R-VIII School District / 1,446 |
| 458. | 2.22 | Shell Knob 78 School District / 2,503 |
| 459. | 2.22 | Salisbury R-IV School District / 2,982 |
| 460. | 2.22 | Columbia Public Schools / 128,135 |
| 461. | 2.22 | Risco R-II School District / 616 |
| 462. | 2.22 | Chillicothe R-II School District / 11,789 |
| 463. | 2.21 | Lewis County C-1 School District / 5,726 |
| 464. | 2.21 | El Dorado Springs R-II School District / 7,306 |
| 465. | 2.21 | Nodaway-Holt R-VII School District / 1,767 |
| 466. | 2.20 | North Mercer County R-III School District / 1,101 |
| 467. | 2.20 | Madison C-3 School District / 1,463 |
| 468. | 2.20 | Clearwater R-I School District / 6,459 |
| 469. | 2.20 | Clinton School District / 11,562 |
| 470. | 2.20 | South Iron County R-I School District / 1,813 |
| 471. | 2.20 | Knox County R-I School District / 3,972 |
| 472. | 2.19 | Louisiana R-II School District / 4,551 |
| 473. | 2.19 | Worth County R-III School District / 2,053 |
| 474. | 2.19 | New Madrid County R-I School District / 9,110 |
| 475. | 2.18 | Marionville R-IX School District / 3,663 |
| 476. | 2.17 | Southern Reynolds County R-IV School District / 3,124 |
| 477. | 2.17 | Newburg R-II School District / 2,738 |
| 478. | 2.17 | Pattonville School District / 43,568 |
| 479. | 2.17 | Shelby County R-IV School District / 4,435 |
| 480. | 2.17 | Macon County R-I School District / 8,196 |
| 481. | 2.17 | Springfield School District / 197,083 |
| 482. | 2.16 | Portageville School District / 3,786 |
| 483. | 2.16 | Slater School District / 2,251 |
| 484. | 2.16 | Hollister R-V School District / 10,262 |
| 485. | 2.15 | Roscoe C-1 School District / 517 |
| 486. | 2.15 | Rock Port R-II School District / 2,382 |
| 487. | 2.15 | Appleton City R-II School District / 2,278 |
| 488. | 2.14 | Trenton R-IX School District / 7,650 |
| 489. | 2.14 | Cowgill R-VI School District / 327 |
| 490. | 2.13 | Dent-Phelps R-III School District / 1,931 |
| 491. | 2.13 | Warsaw R-IX School District / 10,650 |
| 492. | 2.13 | Boncl R-X School District / 517 |
| 493. | 2.13 | Clayton School District / 17,415 |
| 494. | 2.13 | Malden R-I School District / 6,270 |
| 495. | 2.12 | Paris R-II School District / 3,555 |
| 496. | 2.12 | Gorin R-III School District / 439 |
| 497. | 2.12 | University City School District / 37,175 |
| 498. | 2.12 | Putnam County R-I School District / 4,625 |
| 499. | 2.11 | Brunswick R-II School District / 1,886 |
| 500. | 2.11 | Center 58 School District / 28,142 |
| 501. | 2.11 | Albany R-III School District / 2,870 |
| 502. | 2.10 | Puxico R-VIII School District / 4,589 |
| 503. | 2.10 | Affton School District / 27,241 |
| 504. | 2.10 | Princeton R-V School District / 2,277 |
| 505. | 2.09 | Holt County R-II School District / 1,871 |
| 506. | 2.09 | Greenfield R-IV School District / 2,953 |
| 507. | 2.08 | Breckenridge R-I School District / 448 |
| 508. | 2.08 | Name N/A / 360 |
| 509. | 2.08 | Couch R-I School District / 1,105 |
| 510. | 2.07 | Schuyler County R-I School District / 4,453 |
| 511. | 2.06 | Forsyth R-III School District / 7,622 |
| 512. | 2.04 | Malta Bend R-V School District / 601 |
| 513. | 2.03 | Wheatland R-II School District / 2,515 |
| 514. | 2.03 | Lafayette County C-1 School District / 6,269 |
| 515. | 2.03 | Gilliam C-4 School District / 377 |
| 516. | 2.02 | Hermitage R-IV School District / 3,000 |
| 517. | 2.01 | Campbell R-II School District / 3,546 |
| 518. | 1.99 | Centerville R-I School District / 745 |
| 519. | 1.95 | Valley Park School District / 8,095 |
| 520. | 1.93 | Brentwood School District / 7,293 |
| 521. | 1.90 | Keytesville R-III School District / 1,114 |
| 522. | 1.89 | Kingston 42 School District / 425 |
| 523. | 1.87 | Maplewood-Richmond Heights School District / 15,271 |
Please note that we only rank locations with 'Average Household Size' data. The rank above might not be a complete list. Locations without 'Average Household 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.
