| Rank | Average Family Size ▼ | School District / Population |
| 1. | 3.85 | Name N/A / 104 |
| 2. | 3.43 | Van Meter Community School District / 3,099 |
| 3. | 3.42 | Mid-Prairie Community School District / 9,395 |
| 4. | 3.40 | Rock Valley Community School District / 4,680 |
| 5. | 3.38 | Winfield-Mount Union Community School District / 2,154 |
| 6. | 3.38 | Murray Community School District / 1,598 |
| 7. | 3.36 | Ballard Community School District / 6,645 |
| 8. | 3.36 | Riceville Community School District / 2,807 |
| 9. | 3.34 | Chariton Community School District / 7,691 |
| 10. | 3.32 | Sioux Center Community School District / 8,490 |
| 11. | 3.31 | Cal Community School District / 1,803 |
| 12. | 3.30 | Boyden-Hull Community School District / 4,032 |
| 13. | 3.29 | Lamoni Community School District / 2,994 |
| 14. | 3.28 | Storm Lake Community School District / 11,200 |
| 15. | 3.27 | Wilton Community School District / 4,501 |
| 16. | 3.26 | Perry Community School District / 10,784 |
| 17. | 3.23 | Davis County Community School District / 8,346 |
| 18. | 3.22 | Norwalk Community School District / 10,431 |
| 19. | 3.22 | Dallas Center-Grimes Community School District / 10,899 |
| 20. | 3.22 | Woodward-Granger Community School District / 4,950 |
| 21. | 3.21 | Sibley-Ocheyedan Community School District / 4,779 |
| 22. | 3.21 | Woodbury Central Community School District / 3,170 |
| 23. | 3.20 | Fremont-Mills Community School District / 2,656 |
| 24. | 3.20 | Cardinal Community School District / 4,627 |
| 25. | 3.20 | Dunkerton Community School District / 2,664 |
| 26. | 3.20 | North Scott Community School District / 14,502 |
| 27. | 3.19 | Wapello Community School District / 4,035 |
| 28. | 3.18 | West Liberty Community School District / 6,281 |
| 29. | 3.18 | Sergeant Bluff-Luton Community School District / 6,136 |
| 30. | 3.18 | Martensdale-St. Marys Community School District / 2,693 |
| 31. | 3.17 | Wapsie Valley Community School District / 3,929 |
| 32. | 3.17 | MOC-Floyd Valley Community School District / 10,409 |
| 33. | 3.17 | Lone Tree Community School District / 2,744 |
| 34. | 3.17 | Sioux City Community School District / 82,070 |
| 35. | 3.16 | Adel-De Soto-Minburn Community School District / 7,922 |
| 36. | 3.16 | Pleasantville Community School District / 3,287 |
| 37. | 3.16 | Columbus Community School District / 4,341 |
| 38. | 3.16 | Washington Community School District / 10,041 |
| 39. | 3.16 | Waukee Community School District / 25,308 |
| 40. | 3.15 | North Polk Community School District / 5,858 |
| 41. | 3.14 | Hampton-Dumont Community School District / 6,894 |
| 42. | 3.14 | Russell Community School District / 1,144 |
| 43. | 3.14 | Roland-Story Community School District / 5,773 |
| 44. | 3.13 | Johnston Community School District / 28,305 |
| 45. | 3.13 | Glenwood Community School District / 11,205 |
| 46. | 3.13 | Rudd-Rockford-Marble Rock Community School District / 2,923 |
| 47. | 3.13 | Davenport Community School District / 106,281 |
| 48. | 3.13 | Melcher-Dallas Community School District / 2,245 |
| 49. | 3.12 | Malvern Community School District / 1,989 |
| 50. | 3.12 | Valley Community School District / 2,857 |
| 51. | 3.12 | Benton Community School District / 9,113 |
| 52. | 3.11 | Linn-Mar Community School District / 33,580 |
| 53. | 3.11 | Mount Vernon Community School District / 5,740 |
| 54. | 3.11 | Center Point-Urbana Community School District / 5,736 |
| 55. | 3.11 | Western Dubuque Community School District / 21,246 |
| 56. | 3.10 | Earlham Community School District / 3,104 |
| 57. | 3.10 | Bondurant-Farrar Community School District / 5,037 |
| 58. | 3.09 | Springville Community School District / 2,395 |
| 59. | 3.09 | Ankeny Community School District / 43,435 |
| 60. | 3.07 | Muscatine Community School District / 28,688 |
| 61. | 3.07 | Des Moines Independent Community School District / 197,619 |
| 62. | 3.07 | Marshalltown Community School District / 29,263 |
| 63. | 3.07 | Bettendorf Community School District / 22,144 |
| 64. | 3.07 | Danville Community School District / 2,985 |
| 65. | 3.07 | IKM Community School District / 2,562 |
| 66. | 3.07 | Kingsley-Pierson Community School District / 2,727 |
| 67. | 3.07 | Mount Pleasant Community School District / 12,841 |
| 68. | 3.06 | Denison Community School District / 9,590 |
| 69. | 3.06 | Camanche Community School District / 5,148 |
| 70. | 3.06 | West Sioux Community School District / 4,074 |
| 71. | 3.06 | Southeast Polk Community School District / 29,537 |
| 72. | 3.06 | Bennett Community School District / 1,320 |
| 73. | 3.06 | Osage Community School District / 5,933 |
| 74. | 3.06 | Walnut Community School District / 1,235 |
| 75. | 3.05 | Eastern Allamakee Community School District / 2,614 |
| 76. | 3.05 | Indianola Community School District / 18,698 |
| 77. | 3.05 | Pleasant Valley Community School District / 19,491 |
| 78. | 3.05 | St. Ansgar Community School District / 4,087 |
| 79. | 3.05 | Lawton-Bronson Community School District / 3,378 |
| 80. | 3.05 | Carlisle Community School District / 7,638 |
| 81. | 3.04 | Louisa-Muscatine Community School District / 4,322 |
| 82. | 3.04 | Charles City Community School District / 11,090 |
| 83. | 3.03 | Anamosa Community School District / 9,203 |
| 84. | 3.03 | Collins-Maxwell Community School District / 2,756 |
| 85. | 3.03 | East Buchanan Community School District / 3,006 |
| 86. | 3.02 | Le Mars Community School District / 12,579 |
| 87. | 3.02 | Fort Dodge Community School District / 29,528 |
| 88. | 3.02 | Edgewood-Colesburg Community School District / 2,990 |
| 89. | 3.02 | Vinton-Shellsburg Community School District / 10,430 |
| 90. | 3.02 | Lenox Community School District / 1,868 |
| 91. | 3.01 | Akron-Westfield Community School District / 3,369 |
| 92. | 3.01 | Prairie Valley Community School District / 3,973 |
| 93. | 3.01 | Urbandale Community School District / 22,991 |
| 94. | 3.00 | Graettinger Community School District / 1,447 |
| 95. | 3.00 | Gilbert Community School District / 5,698 |
| 96. | 3.00 | Sheldon Community School District / 6,790 |
| 97. | 3.00 | South Hamilton Community School District / 3,776 |
| 98. | 3.00 | Central Lyon Community School District / 4,157 |
| 99. | 3.00 | West Delaware County Community School District / 8,976 |
| 100. | 3.00 | Solon Community School District / 5,796 |
| 101. | 3.00 | Pella Community School District / 14,903 |
| 102. | 3.00 | Andrew Community School District / 1,558 |
| 103. | 2.99 | Seymour Community School District / 2,473 |
| 104. | 2.99 | Oelwein Community School District / 9,040 |
| 105. | 2.99 | Hudson Community School District / 3,712 |
| 106. | 2.99 | College Community School District / 20,989 |
| 107. | 2.99 | Baxter Community School District / 1,783 |
| 108. | 2.99 | Northeast Hamilton Community School District / 1,525 |
| 109. | 2.99 | Central Clinton Community School District / 9,467 |
| 110. | 2.98 | Sheffield Chapin Meservey Thornton Community School District / 3,037 |
| 111. | 2.98 | Iowa Valley Community School District / 3,406 |
| 112. | 2.98 | Bellevue Community School District / 4,741 |
| 113. | 2.98 | Westwood Community School District / 2,962 |
| 114. | 2.98 | Alta Community School District / 3,032 |
| 115. | 2.97 | Cherokee Community School District / 5,957 |
| 116. | 2.97 | Farragut Community School District / 1,632 |
| 117. | 2.97 | Logan-Magnolia Community School District / 3,626 |
| 118. | 2.97 | Highland Community School District / 3,275 |
| 119. | 2.97 | Stratford Community School District / 1,487 |
| 120. | 2.97 | New London Community School District / 2,959 |
| 121. | 2.96 | Preston Community School District / 1,930 |
| 122. | 2.96 | Winterset Community School District / 8,965 |
| 123. | 2.96 | Fremont Community School District / 1,237 |
| 124. | 2.96 | Elk Horn-Kimballton Community School District / 1,547 |
| 125. | 2.96 | Waterloo Community School District / 76,129 |
| 126. | 2.96 | North Mahaska Community School District / 3,149 |
| 127. | 2.96 | Morning Sun Community School District / 1,513 |
| 128. | 2.95 | Ottumwa Community School District / 28,330 |
| 129. | 2.95 | West Des Moines Community School District / 67,878 |
| 130. | 2.95 | West Burlington Independent School District / 3,271 |
| 131. | 2.95 | Monticello Community School District / 6,409 |
| 132. | 2.95 | Waco Community School District / 2,830 |
| 133. | 2.95 | Lisbon Community School District / 3,033 |
| 134. | 2.95 | Clear Creek-Amana Community School District / 10,235 |
| 135. | 2.95 | Carroll Community School District / 14,615 |
| 136. | 2.95 | Nevada Community School District / 8,403 |
| 137. | 2.95 | Stanton Community School District / 1,176 |
| 138. | 2.95 | Treynor Community School District / 2,618 |
| 139. | 2.95 | Oskaloosa Community School District / 15,548 |
| 140. | 2.94 | Ames Community School District / 53,049 |
| 141. | 2.94 | Clarke Community School District / 7,637 |
| 142. | 2.94 | Iowa City Community School District / 102,262 |
| 143. | 2.94 | Lewis Central Community School District / 14,266 |
| 144. | 2.94 | Durant Community School District / 3,357 |
| 145. | 2.94 | Dike-New Hartford Community School District / 4,263 |
| 146. | 2.94 | West Central Community School District / 1,822 |
| 147. | 2.94 | Harlan Community School District / 9,088 |
| 148. | 2.94 | Interstate 35 Community School District / 4,398 |
| 149. | 2.94 | Keokuk Community School District / 12,987 |
| 150. | 2.94 | Moulton-Udell Community School District / 1,738 |
| 151. | 2.93 | Clarksville Community School District / 2,167 |
| 152. | 2.93 | Moravia Community School District / 2,252 |
| 153. | 2.93 | Tipton Community School District / 4,792 |
| 154. | 2.93 | Cedar Falls Community School District / 38,929 |
| 155. | 2.93 | Central City Community School District / 3,002 |
| 156. | 2.93 | South Tama County Community School District / 8,433 |
| 157. | 2.93 | GMG Community School District / 2,054 |
| 158. | 2.92 | North Linn Community School District / 3,180 |
| 159. | 2.92 | Aurelia Community School District / 1,998 |
| 160. | 2.92 | Rockwell-Swaledale Community School District / 2,060 |
| 161. | 2.92 | Midland Community School District / 3,726 |
| 162. | 2.92 | Cedar Rapids Community School District / 120,689 |
| 163. | 2.92 | Greene Community School District / 2,098 |
| 164. | 2.92 | Madrid Community School District / 3,635 |
| 165. | 2.92 | Colo-Nesco Community School District / 3,301 |
| 166. | 2.91 | West Lyon Community School District / 4,052 |
| 167. | 2.91 | Ar-We-Va Community School District / 2,043 |
| 168. | 2.91 | Hinton Community School District / 2,896 |
| 169. | 2.91 | Keota Community School District / 1,915 |
| 170. | 2.91 | Alburnett Community School District / 2,943 |
| 171. | 2.91 | Bedford Community School District / 2,966 |
| 172. | 2.91 | Panorama Community School District / 4,900 |
| 173. | 2.91 | Underwood Community School District / 3,494 |
| 174. | 2.91 | Name N/A / 1,133 |
| 175. | 2.91 | Albia Community School District / 6,897 |
| 176. | 2.90 | Mason City Community School District / 28,767 |
| 177. | 2.90 | Lynnville-Sully Community School District / 2,923 |
| 178. | 2.90 | Colfax-Mingo Community School District / 4,971 |
| 179. | 2.90 | Burlington Community School District / 29,176 |
| 180. | 2.90 | Clinton Community School District / 26,148 |
| 181. | 2.90 | Decorah Community School District / 11,580 |
| 182. | 2.90 | Allamakee Community School District / 8,966 |
| 183. | 2.90 | Calamus-Wheatland Community School District / 2,658 |
| 184. | 2.90 | Adair-Casey Community School District / 2,005 |
| 185. | 2.90 | Anthon-Oto Community School District / 1,606 |
| 186. | 2.90 | Dubuque Community School District / 73,917 |
| 187. | 2.90 | Council Bluffs Community School District / 58,251 |
| 188. | 2.90 | Clarion-Goldfield Community School District / 4,926 |
| 189. | 2.90 | Montezuma Community School District / 3,220 |
| 190. | 2.90 | Centerville Community School District / 8,933 |
| 191. | 2.90 | Coon Rapids-Bayard Community School District / 2,464 |
| 192. | 2.90 | Whiting Community School District / 1,066 |
| 193. | 2.89 | Mediapolis Community School District / 5,268 |
| 194. | 2.89 | Guthrie Center Community School District / 2,956 |
| 195. | 2.89 | Union Community School District / 6,547 |
| 196. | 2.89 | Van Buren Community School District / 5,405 |
| 197. | 2.89 | Maquoketa Valley Community School District / 4,718 |
| 198. | 2.89 | Diagonal Community School District / 709 |
| 199. | 2.88 | South Winneshiek Community School District / 4,439 |
| 200. | 2.88 | Remsen-Union Community School District / 2,826 |
| 201. | 2.88 | Harmony Community School District / 2,619 |
| 202. | 2.88 | Boone Community School District / 14,151 |
| 203. | 2.88 | Emmetsburg Community School District / 4,846 |
| 204. | 2.88 | Twin Cedars Community School District / 2,466 |
| 205. | 2.88 | North Cedar Community School District / 5,421 |
| 206. | 2.87 | Mormon Trail Community School District / 1,885 |
| 207. | 2.87 | Schleswig Community School District / 1,779 |
| 208. | 2.87 | Creston Community School District / 9,061 |
| 209. | 2.87 | English Valleys Community School District / 2,426 |
| 210. | 2.87 | Lake Mills Community School District / 4,197 |
| 211. | 2.87 | Estherville Lincoln Central Community School District / 7,997 |
| 212. | 2.87 | Garner-Hayfield Community School District / 3,894 |
| 213. | 2.87 | Belle Plaine Community School District / 3,627 |
| 214. | 2.87 | Williamsburg Community School District / 5,716 |
| 215. | 2.86 | AGWSR Community School District / 4,839 |
| 216. | 2.86 | Nishna Valley Community School District / 1,263 |
| 217. | 2.86 | Belmond-Klemme Community School District / 4,652 |
| 218. | 2.86 | Marion Independent School District / 12,018 |
| 219. | 2.86 | West Harrison Community School District / 2,860 |
| 220. | 2.86 | Knoxville Community School District / 10,886 |
| 221. | 2.86 | Ogden Community School District / 3,770 |
| 222. | 2.86 | Delwood Community School District / 1,351 |
| 223. | 2.86 | Alden Community School District / 1,607 |
| 224. | 2.85 | Eddyville-Blakesburg Community School District / 4,146 |
| 225. | 2.85 | Griswold Community School District / 3,379 |
| 226. | 2.85 | Turkey Valley Community School District / 3,260 |
| 227. | 2.85 | New Hampton Community School District / 7,204 |
| 228. | 2.85 | Pekin Community School District / 3,832 |
| 229. | 2.85 | MFL MarMac Community School District / 5,597 |
| 230. | 2.85 | Independence Community School District / 9,472 |
| 231. | 2.85 | North Winneshiek Community School District / 1,843 |
| 232. | 2.85 | East Central Community School District / 2,251 |
| 233. | 2.85 | Sentral Community School District / 1,099 |
| 234. | 2.85 | North Tama County Community School District / 3,230 |
| 235. | 2.85 | Missouri Valley Community School District / 5,102 |
| 236. | 2.85 | Corwith-Wesley Community School District / 1,124 |
| 237. | 2.84 | North Central Community School District / 3,208 |
| 238. | 2.84 | Riverside Community School District / 3,821 |
| 239. | 2.84 | Albert City-Truesdale Community School District / 1,508 |
| 240. | 2.84 | Southern Cal Community School District / 3,204 |
| 241. | 2.83 | New Market Community School District / 1,148 |
| 242. | 2.83 | Rockwell City-Lytton Community School District / 3,351 |
| 243. | 2.83 | Jesup Community School District / 4,557 |
| 244. | 2.83 | Hartley-Melvin-Sanborn Community School District / 4,465 |
| 245. | 2.83 | Northeast Community School District / 3,070 |
| 246. | 2.83 | Olin Consolidated School District / 1,459 |
| 247. | 2.83 | H-L-V Community School District / 1,884 |
| 248. | 2.83 | Tri-Center Community School District / 3,386 |
| 249. | 2.83 | Prescott Community School District / 617 |
| 250. | 2.83 | Allison-Bristow Community School District / 1,839 |
| 251. | 2.83 | West Central Valley Community School District / 5,845 |
| 252. | 2.82 | Tri-County Community School District / 1,982 |
| 253. | 2.82 | Eagle Grove Community School District / 4,497 |
| 254. | 2.82 | Spencer Community School District / 12,007 |
| 255. | 2.82 | Armstrong-Ringsted Community School District / 2,493 |
| 256. | 2.82 | River Valley Community School District / 2,629 |
| 257. | 2.82 | Sioux Central Community School District / 2,962 |
| 258. | 2.82 | Saydel Community School District / 7,682 |
| 259. | 2.81 | Newell-Fonda Community School District / 2,434 |
| 260. | 2.81 | West Marshall Community School District / 4,267 |
| 261. | 2.81 | BCLUW Community School District / 3,286 |
| 262. | 2.81 | Aplington-Parkersburg Community School District / 4,150 |
| 263. | 2.81 | Fort Madison Community School District / 16,879 |
| 264. | 2.81 | Charter Oak-Ute Community School District / 1,940 |
| 265. | 2.81 | Maquoketa Community School District / 8,945 |
| 266. | 2.81 | Starmont Community School District / 3,895 |
| 267. | 2.81 | Central Community School District / 3,470 |
| 268. | 2.81 | North Iowa Community School District / 3,010 |
| 269. | 2.81 | Central Lee Community School District / 5,634 |
| 270. | 2.81 | Ruthven-Ayrshire Community School District / 1,715 |
| 271. | 2.81 | Algona Community School District / 9,310 |
| 272. | 2.81 | West Branch Community School District / 4,086 |
| 273. | 2.81 | Forest City Community School District / 6,531 |
| 274. | 2.80 | Corning Community School District / 3,062 |
| 275. | 2.80 | East Marshall Community School District / 3,755 |
| 276. | 2.80 | Maple Valley Community School District / 3,120 |
| 277. | 2.80 | Gladbrook-Reinbeck Community School District / 4,523 |
| 278. | 2.80 | Southeast Webster-Grand Community School District / 3,745 |
| 279. | 2.80 | Nora Springs-Rock Falls Community School District / 2,661 |
| 280. | 2.80 | Nashua-Plainfield Community School District / 3,868 |
| 281. | 2.80 | Tripoli Community School District / 2,583 |
| 282. | 2.79 | Sumner Community School District / 3,175 |
| 283. | 2.79 | Southeast Warren Community School District / 3,105 |
| 284. | 2.79 | A-H-S-T Community School District / 3,501 |
| 285. | 2.79 | Hamburg Community School District / 1,735 |
| 286. | 2.79 | Humboldt Community School District / 7,064 |
| 287. | 2.78 | Essex Community School District / 1,472 |
| 288. | 2.78 | Fairfield Community School District / 14,061 |
| 289. | 2.78 | Nodaway Valley Community School District / 4,216 |
| 290. | 2.78 | East Greene Community School District / 1,916 |
| 291. | 2.78 | C and M Community School District / 1,277 |
| 292. | 2.78 | Webster City Community School District / 9,686 |
| 293. | 2.78 | Schaller-Crestland Community School District / 2,243 |
| 294. | 2.78 | Marcus-Meriden-Cleghorn Community School District / 2,912 |
| 295. | 2.78 | PCM Community School District / 5,095 |
| 296. | 2.78 | Manning Community School District / 2,202 |
| 297. | 2.77 | East Union Community School District / 3,215 |
| 298. | 2.77 | Pocahontas Area Community School District / 3,731 |
| 299. | 2.77 | Denver Community School District / 3,624 |
| 300. | 2.77 | Twin Rivers Community School District / 1,373 |
| 301. | 2.77 | Iowa Falls Community School District / 6,603 |
| 302. | 2.77 | Clay Central-Everly Community School District / 2,317 |
| 303. | 2.77 | Villisca Community School District / 2,369 |
| 304. | 2.77 | Sigourney Community School District / 3,648 |
| 305. | 2.76 | West Hancock Community School District / 3,878 |
| 306. | 2.76 | South O'Brien Community School District / 4,600 |
| 307. | 2.76 | Mount Ayr Community School District / 4,189 |
| 308. | 2.76 | Paton-Churdan Community School District / 1,243 |
| 309. | 2.75 | Howard-Winneshiek Community School District / 8,781 |
| 310. | 2.75 | Titonka Consolidated School District / 967 |
| 311. | 2.75 | Clear Lake Community School District / 8,608 |
| 312. | 2.75 | Audubon Community School District / 3,715 |
| 313. | 2.75 | Brooklyn-Guernsey-Malcom Community School District / 3,177 |
| 314. | 2.74 | George-Little Rock Community School District / 2,906 |
| 315. | 2.74 | Waverly-Shell Rock Community School District / 12,836 |
| 316. | 2.74 | Woodbine Community School District / 2,691 |
| 317. | 2.74 | Red Oak Community School District / 7,185 |
| 318. | 2.73 | Woden-Crystal Lake Community School District / 914 |
| 319. | 2.73 | North Kossuth Community School District / 2,063 |
| 320. | 2.73 | Jefferson-Scranton Community School District / 6,286 |
| 321. | 2.72 | Sidney Community School District / 1,780 |
| 322. | 2.72 | Galva-Holstein Community School District / 2,813 |
| 323. | 2.72 | Laurens-Marathon Community School District / 2,220 |
| 324. | 2.72 | North Fayette Community School District / 6,172 |
| 325. | 2.72 | Grundy Center Community School District / 3,564 |
| 326. | 2.72 | Postville Community School District / 3,686 |
| 327. | 2.71 | Hubbard-Radcliffe Community School District / 2,711 |
| 328. | 2.71 | Terril Community School District / 932 |
| 329. | 2.70 | Orient-Macksburg Community School District / 1,129 |
| 330. | 2.70 | Northwood-Kensett Community School District / 3,023 |
| 331. | 2.70 | Harris-Lake Park Community School District / 1,896 |
| 332. | 2.70 | Clayton Ridge Community School District / 4,773 |
| 333. | 2.69 | Fredericksburg Community School District / 1,624 |
| 334. | 2.68 | Dows Community School District / 1,116 |
| 335. | 2.68 | Lu Verne Community School District / 587 |
| 336. | 2.68 | Wall Lake View Auburn Community School District / 3,245 |
| 337. | 2.68 | Glidden-Ralston Community School District / 1,784 |
| 338. | 2.67 | United Community School District / 1,945 |
| 339. | 2.67 | Ventura Community School District / 1,776 |
| 340. | 2.67 | Battle Creek-Ida Grove Community School District / 3,784 |
| 341. | 2.67 | Atlantic Community School District / 8,479 |
| 342. | 2.67 | Newton Community School District / 21,200 |
| 343. | 2.66 | South Clay Community School District / 1,060 |
| 344. | 2.66 | Gilmore City-Bradgate Community School District / 919 |
| 345. | 2.65 | Central Decatur Community School District / 4,049 |
| 346. | 2.65 | Boyer Valley Community School District / 2,487 |
| 347. | 2.64 | West Bend-Mallard Community School District / 1,871 |
| 348. | 2.63 | Clarinda Community School District / 6,556 |
| 349. | 2.62 | Sac Community School District / 2,843 |
| 350. | 2.61 | Spirit Lake Community School District / 8,264 |
| 351. | 2.61 | South Page Community School District / 1,616 |
| 352. | 2.59 | Odebolt-Arthur Community School District / 2,032 |
| 353. | 2.59 | Pomeroy-Palmer Community School District / 1,412 |
| 354. | 2.59 | Manson Northwest Webster Community School District / 4,341 |
| 355. | 2.59 | Anita Community School District / 2,028 |
| 356. | 2.58 | Wayne Community School District / 3,393 |
| 357. | 2.58 | Grinnell-Newburg Community School District / 11,894 |
| 358. | 2.56 | Janesville Consolidated School District / 2,419 |
| 359. | 2.56 | Eldora-New Providence Community School District / 3,900 |
| 360. | 2.55 | West Monona Community School District / 4,171 |
| 361. | 2.48 | Shenandoah Community School District / 6,055 |
| 362. | 2.45 | Exira Community School District / 1,508 |
| 363. | 2.45 | Lineville-Clio Community School District / 510 |
| 364. | 2.44 | Clearfield Community School District / 559 |
| 365. | 2.40 | Okoboji Community School District / 6,201 |
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.
