| Rank | Average Family Size ▼ | School District / Population |
| 1. | 5.00 | Norris School District / 40 |
| 2. | 4.10 | Menominee Indian School District / 4,274 |
| 3. | 3.65 | Augusta School District / 4,826 |
| 4. | 3.58 | Norwalk-Ontario-Wilton School District / 2,985 |
| 5. | 3.56 | Gilmanton School District / 1,206 |
| 6. | 3.52 | Loyal School District / 4,126 |
| 7. | 3.50 | Cashton School District / 3,688 |
| 8. | 3.49 | Athens School District / 4,414 |
| 9. | 3.46 | Milwaukee School District / 594,260 |
| 10. | 3.44 | Greenwood School District / 3,694 |
| 11. | 3.41 | Hillsboro School District / 4,617 |
| 12. | 3.41 | Merton Community School District / 6,374 |
| 13. | 3.40 | Royall School District / 5,559 |
| 14. | 3.40 | Juda School District / 1,389 |
| 15. | 3.38 | Walworth Joint No. 1 School District / 3,997 |
| 16. | 3.35 | Thorp School District / 4,366 |
| 17. | 3.34 | Granton Area School District / 2,130 |
| 18. | 3.34 | Swallow School District / 3,304 |
| 19. | 3.33 | St. Croix Central School District / 7,437 |
| 20. | 3.33 | Johnson Creek School District / 4,555 |
| 21. | 3.33 | Wheatland Joint No. 1 School District / 4,538 |
| 22. | 3.31 | Delavan-Darien School District / 17,203 |
| 23. | 3.31 | Paris Joint No. 1 School District / 1,874 |
| 24. | 3.31 | Beloit School District / 36,723 |
| 25. | 3.31 | Edgar School District / 3,606 |
| 26. | 3.30 | Union Grove Joint No. 1 School District / 5,369 |
| 27. | 3.30 | Colby School District / 6,732 |
| 28. | 3.29 | Abbotsford School District / 3,459 |
| 29. | 3.28 | Markesan School District / 6,482 |
| 30. | 3.28 | Brillion School District / 5,592 |
| 31. | 3.27 | Kenosha School District / 127,921 |
| 32. | 3.27 | Oak Creek-Franklin School District / 39,009 |
| 33. | 3.25 | Cudahy School District / 18,251 |
| 34. | 3.24 | Bristol No. 1 School District / 4,818 |
| 35. | 3.24 | Wrightstown Community School District / 6,844 |
| 36. | 3.23 | Waterloo School District / 5,472 |
| 37. | 3.23 | Whitefish Bay School District / 14,063 |
| 38. | 3.23 | Belmont Community School District / 1,998 |
| 39. | 3.22 | Kimberly Area School District / 25,942 |
| 40. | 3.22 | South Milwaukee School District / 21,119 |
| 41. | 3.22 | Franklin Public School District / 28,209 |
| 42. | 3.22 | Racine School District / 138,878 |
| 43. | 3.22 | Deerfield Community School District / 3,981 |
| 44. | 3.21 | Stanley-Boyd Area School District / 7,524 |
| 45. | 3.21 | Northern Ozaukee School District / 5,747 |
| 46. | 3.21 | Almond-Bancroft School District / 2,701 |
| 47. | 3.21 | Holmen School District / 19,651 |
| 48. | 3.20 | Westosha Central High School District / 19,427 |
| 49. | 3.20 | Whitehall School District / 5,165 |
| 50. | 3.20 | Potosi School District / 2,400 |
| 51. | 3.20 | Trevor-Wilmot Consolidated School District / 3,697 |
| 52. | 3.19 | Bloomer School District / 7,275 |
| 53. | 3.19 | New Richmond School District / 17,415 |
| 54. | 3.19 | Ithaca School District / 1,898 |
| 55. | 3.19 | Genoa City Joint No. 2 School District / 5,211 |
| 56. | 3.18 | Mineral Point School District / 4,613 |
| 57. | 3.18 | Arrowhead Union High School District / 34,358 |
| 58. | 3.17 | Brodhead School District / 6,327 |
| 59. | 3.17 | Wauzeka-Steuben School District / 1,706 |
| 60. | 3.17 | Kickapoo Area School District / 2,951 |
| 61. | 3.17 | Owen-Withee School District / 4,417 |
| 62. | 3.17 | De Pere Unified School District / 20,790 |
| 63. | 3.17 | Spring Valley School District / 4,212 |
| 64. | 3.16 | Norway Joint No. 7 School District / 1,877 |
| 65. | 3.16 | Hortonville School District / 19,216 |
| 66. | 3.16 | Lomira School District / 6,726 |
| 67. | 3.16 | Blair-Taylor School District / 4,266 |
| 68. | 3.16 | Hartland-Lakeside Joint No. 3 School District / 11,479 |
| 69. | 3.16 | Freedom Area School District / 9,014 |
| 70. | 3.16 | Reedsville School District / 4,626 |
| 71. | 3.16 | Jefferson School District / 13,377 |
| 72. | 3.15 | Baldwin-Woodville Area School District / 8,467 |
| 73. | 3.15 | Lake Geneva Joint No. 1 School District / 16,963 |
| 74. | 3.15 | Silver Lake Joint No. 1 School District / 4,226 |
| 75. | 3.15 | Darlington Community School District / 5,159 |
| 76. | 3.15 | Lake Geneva-Genoa City Union High School District / 24,508 |
| 77. | 3.15 | Watertown School District / 30,876 |
| 78. | 3.15 | Linn Joint No. 4 School District / 1,127 |
| 79. | 3.15 | La Farge School District / 1,946 |
| 80. | 3.14 | Iowa-Grant School District / 4,489 |
| 81. | 3.14 | Sun Prairie Area School District / 42,002 |
| 82. | 3.14 | Somerset School District / 7,908 |
| 83. | 3.14 | Seymour Community School District / 12,861 |
| 84. | 3.14 | Kohler School District / 2,366 |
| 85. | 3.14 | Green Bay Area School District / 136,304 |
| 86. | 3.14 | Sharon Joint No. 11 School District / 1,876 |
| 87. | 3.13 | Marshall School District / 5,905 |
| 88. | 3.13 | Friess Lake School District / 2,513 |
| 89. | 3.13 | Westby Area School District / 7,727 |
| 90. | 3.12 | Clayton School District / 1,931 |
| 91. | 3.12 | Independence School District / 2,609 |
| 92. | 3.12 | Big Foot Union High School District / 9,072 |
| 93. | 3.12 | Elkhorn Area School District / 17,939 |
| 94. | 3.12 | Hamilton School District / 26,157 |
| 95. | 3.12 | Salem School District / 9,104 |
| 96. | 3.12 | Monona Grove School District / 17,268 |
| 97. | 3.12 | Appleton Area School District / 94,486 |
| 98. | 3.12 | Sheboygan Area School District / 60,985 |
| 99. | 3.11 | New Glarus School District / 4,536 |
| 100. | 3.11 | New Auburn School District / 1,820 |
| 101. | 3.11 | Little Chute Area School District / 8,180 |
| 102. | 3.11 | Kaukauna Area School District / 22,706 |
| 103. | 3.11 | Argyle School District / 1,912 |
| 104. | 3.11 | Shullsburg School District / 2,224 |
| 105. | 3.11 | Luxemburg-Casco School District / 10,979 |
| 106. | 3.11 | Palmyra-Eagle Area School District / 7,258 |
| 107. | 3.11 | Mukwonago School District / 28,642 |
| 108. | 3.11 | Wilmot Union High School District / 18,948 |
| 109. | 3.11 | Burlington Area School District / 23,174 |
| 110. | 3.11 | Waunakee Community School District / 18,207 |
| 111. | 3.11 | D.C. Everest Area School District / 33,597 |
| 112. | 3.10 | Beaver Dam School District / 22,560 |
| 113. | 3.10 | Neosho Joint No. 3 School District / 2,094 |
| 114. | 3.10 | Glenwood City School District / 3,854 |
| 115. | 3.10 | Arcadia School District / 5,653 |
| 116. | 3.10 | Evansville Community School District / 9,627 |
| 117. | 3.10 | Black Hawk School District / 2,583 |
| 118. | 3.10 | Shiocton School District / 4,217 |
| 119. | 3.09 | Stratford School District / 5,112 |
| 120. | 3.09 | Mount Horeb Area School District / 11,939 |
| 121. | 3.09 | Union Grove Union High School District / 13,252 |
| 122. | 3.09 | Rubicon Joint No. 6 School District / 1,177 |
| 123. | 3.09 | Gresham School District / 1,966 |
| 124. | 3.09 | Spencer School District / 4,556 |
| 125. | 3.09 | Verona Area School District / 37,836 |
| 126. | 3.09 | Randolph School District / 3,206 |
| 127. | 3.09 | Herman No. 22 School District / 1,689 |
| 128. | 3.09 | Clintonville School District / 10,096 |
| 129. | 3.09 | Maple Dale-Indian Hill School District / 1,746 |
| 130. | 3.09 | Chilton School District / 7,104 |
| 131. | 3.08 | Benton School District / 1,549 |
| 132. | 3.08 | Cadott Community School District / 5,102 |
| 133. | 3.08 | Cedar Grove-Belgium Area School District / 5,658 |
| 134. | 3.08 | Stone Bank School District / 2,674 |
| 135. | 3.08 | Neenah School District / 44,048 |
| 136. | 3.08 | Bangor School District / 4,053 |
| 137. | 3.08 | Necedah Area School District / 4,769 |
| 138. | 3.08 | West Salem School District / 9,760 |
| 139. | 3.08 | Port Edwards School District / 4,099 |
| 140. | 3.08 | Osceola School District / 9,145 |
| 141. | 3.08 | Lake Mills Area School District / 9,154 |
| 142. | 3.07 | Hustisford School District / 3,459 |
| 143. | 3.07 | Reedsburg School District / 16,457 |
| 144. | 3.07 | Kettle Moraine School District / 24,829 |
| 145. | 3.07 | Lake Country School District / 4,741 |
| 146. | 3.07 | West Allis School District / 68,742 |
| 147. | 3.07 | Dover No. 1 School District / 1,824 |
| 148. | 3.07 | Fort Atkinson School District / 18,361 |
| 149. | 3.07 | Randall Joint No. 1 School District / 5,338 |
| 150. | 3.07 | Bonduel School District / 6,523 |
| 151. | 3.07 | Prairie Farm School District / 1,690 |
| 152. | 3.07 | Elk Mound Area School District / 4,533 |
| 153. | 3.07 | Colfax School District / 4,575 |
| 154. | 3.06 | Hartford Joint No. 1 School District / 17,330 |
| 155. | 3.06 | Denmark School District / 8,698 |
| 156. | 3.06 | Plum City School District / 1,663 |
| 157. | 3.06 | Parkview School District / 6,171 |
| 158. | 3.06 | Tomah Area School District / 20,165 |
| 159. | 3.06 | Fennimore Community School District / 4,749 |
| 160. | 3.06 | Muskego-Norway School District / 29,209 |
| 161. | 3.06 | Lancaster Community School District / 6,183 |
| 162. | 3.06 | Tri-County Area School District / 3,963 |
| 163. | 3.06 | Valders Area School District / 7,094 |
| 164. | 3.05 | Prescott School District / 7,771 |
| 165. | 3.05 | Whitnall School District / 17,503 |
| 166. | 3.05 | Auburndale School District / 4,529 |
| 167. | 3.05 | Oshkosh Area School District / 79,941 |
| 168. | 3.05 | Grafton School District / 14,470 |
| 169. | 3.05 | St. Francis School District / 9,365 |
| 170. | 3.05 | Richmond School District / 2,815 |
| 171. | 3.05 | Wausau School District / 54,266 |
| 172. | 3.05 | Laona School District / 1,491 |
| 173. | 3.05 | Belleville School District / 5,511 |
| 174. | 3.05 | Pulaski Community School District / 19,999 |
| 175. | 3.05 | Marathon City School District / 4,747 |
| 176. | 3.05 | Kewaskum School District / 14,141 |
| 177. | 3.05 | Highland School District / 1,671 |
| 178. | 3.05 | Durand School District / 7,490 |
| 179. | 3.04 | Mauston School District / 10,096 |
| 180. | 3.04 | Fall Creek School District / 3,894 |
| 181. | 3.04 | Washington-Caldwell School District / 1,784 |
| 182. | 3.04 | Weyauwega-Fremont School District / 7,021 |
| 183. | 3.04 | Germantown School District / 25,626 |
| 184. | 3.04 | Howard-Suamico School District / 28,532 |
| 185. | 3.04 | Name N/A / 213,319 |
| 186. | 3.04 | Baraboo School District / 20,337 |
| 187. | 3.04 | Algoma School District / 5,367 |
| 188. | 3.03 | Ripon Area School District / 10,768 |
| 189. | 3.03 | Elmbrook School District / 44,852 |
| 190. | 3.03 | Wonewoc-Union Center School District / 3,244 |
| 191. | 3.03 | Slinger School District / 15,792 |
| 192. | 3.03 | DeForest Area School District / 19,617 |
| 193. | 3.03 | Kiel Area School District / 8,819 |
| 194. | 3.03 | Clinton Community School District / 5,765 |
| 195. | 3.03 | Oregon School District / 19,779 |
| 196. | 3.03 | Barneveld School District / 2,205 |
| 197. | 3.03 | Milton School District / 18,878 |
| 198. | 3.03 | Howards Grove School District / 6,016 |
| 199. | 3.03 | Waukesha School District / 92,659 |
| 200. | 3.03 | Barron Area School District / 8,920 |
| 201. | 3.03 | Sparta Area School District / 16,882 |
| 202. | 3.03 | Random Lake School District / 6,124 |
| 203. | 3.03 | Middleton-Cross Plains School District / 38,506 |
| 204. | 3.03 | Cedarburg School District / 19,473 |
| 205. | 3.03 | Hartford Union High School District / 31,949 |
| 206. | 3.02 | Seneca School District / 1,608 |
| 207. | 3.02 | Dodgeland School District / 6,232 |
| 208. | 3.02 | Wauwatosa School District / 46,457 |
| 209. | 3.02 | River Falls School District / 22,886 |
| 210. | 3.02 | Brown Deer School District / 11,980 |
| 211. | 3.02 | North Crawford School District / 3,190 |
| 212. | 3.02 | Cameron School District / 5,070 |
| 213. | 3.02 | Sheboygan Falls School District / 11,566 |
| 214. | 3.02 | Hilbert School District / 2,857 |
| 215. | 3.02 | East Troy Community School District / 11,922 |
| 216. | 3.02 | Platteville School District / 14,589 |
| 217. | 3.01 | Elmwood School District / 2,238 |
| 218. | 3.01 | Janesville School District / 63,046 |
| 219. | 3.01 | Oconomowoc Area School District / 32,686 |
| 220. | 3.01 | Hudson School District / 29,970 |
| 221. | 3.01 | Waterford Union High School District / 18,214 |
| 222. | 3.01 | Onalaska School District / 17,255 |
| 223. | 3.01 | Horicon School District / 5,518 |
| 224. | 3.01 | Osseo-Fairchild School District / 5,340 |
| 225. | 3.01 | Chippewa Falls Area School District / 33,121 |
| 226. | 3.01 | Cornell School District / 2,733 |
| 227. | 3.01 | Mondovi School District / 5,826 |
| 228. | 3.01 | Albany School District / 2,873 |
| 229. | 3.01 | Sauk Prairie School District / 15,534 |
| 230. | 3.00 | Yorkville Joint No. 2 School District / 2,803 |
| 231. | 3.00 | Lena School District / 2,586 |
| 232. | 3.00 | Cambria-Friesland School District / 2,231 |
| 233. | 3.00 | Ashland School District / 12,231 |
| 234. | 3.00 | North Lake School District / 2,971 |
| 235. | 3.00 | Eau Claire Area School District / 81,106 |
| 236. | 3.00 | Rosendale-Brandon School District / 5,418 |
| 237. | 3.00 | Ellsworth Community School District / 11,203 |
| 238. | 2.99 | Stoughton Area School District / 21,192 |
| 239. | 2.99 | Tomorrow River School District / 5,035 |
| 240. | 2.99 | West Bend School District / 51,521 |
| 241. | 2.99 | Marion School District / 3,980 |
| 242. | 2.99 | Viroqua Area School District / 8,847 |
| 243. | 2.99 | West De Pere School District / 19,892 |
| 244. | 2.99 | Southwestern Wisconsin School District / 3,943 |
| 245. | 2.99 | Pecatonica Area School District / 2,690 |
| 246. | 2.99 | Boyceville Community School District / 4,552 |
| 247. | 2.99 | Menomonie Area School District / 27,164 |
| 248. | 2.99 | Waterford Joint No. 1 School District / 13,677 |
| 249. | 2.99 | Bowler School District / 2,555 |
| 250. | 2.98 | Greenfield School District / 28,825 |
| 251. | 2.98 | Port Washington-Saukville School District / 16,846 |
| 252. | 2.98 | Twin Lakes No. 4 School District / 3,532 |
| 253. | 2.98 | St. Croix Falls School District / 6,776 |
| 254. | 2.98 | Fall River School District / 2,693 |
| 255. | 2.98 | Mequon-Thiensville School District / 26,457 |
| 256. | 2.98 | North Fond du Lac School District / 7,977 |
| 257. | 2.98 | Mayville School District / 7,853 |
| 258. | 2.98 | Pardeeville Area School District / 6,895 |
| 259. | 2.97 | Monroe School District / 15,857 |
| 260. | 2.97 | Oostburg School District / 6,019 |
| 261. | 2.97 | Dodgeville School District / 7,964 |
| 262. | 2.97 | Greendale School District / 14,085 |
| 263. | 2.97 | North Cape School District / 876 |
| 264. | 2.97 | River Ridge School District / 3,712 |
| 265. | 2.97 | Richland School District / 11,315 |
| 266. | 2.97 | New Berlin School District / 34,658 |
| 267. | 2.97 | Two Rivers School District / 12,950 |
| 268. | 2.97 | Brighton No. 1 School District / 1,284 |
| 269. | 2.96 | Alma Center School District / 3,037 |
| 270. | 2.96 | Fond du Lac School District / 52,549 |
| 271. | 2.96 | Nicolet Union High School District / 25,475 |
| 272. | 2.96 | La Crosse School District / 63,061 |
| 273. | 2.96 | Tigerton School District / 1,872 |
| 274. | 2.96 | Clear Lake School District / 3,181 |
| 275. | 2.96 | Erin School District / 2,707 |
| 276. | 2.96 | Menasha School District / 24,903 |
| 277. | 2.96 | Beloit Turner School District / 8,753 |
| 278. | 2.95 | Pewaukee School District / 16,961 |
| 279. | 2.95 | Madison Metropolitan School District / 227,184 |
| 280. | 2.95 | Prairie du Chien Area School District / 8,530 |
| 281. | 2.95 | Weston School District / 2,316 |
| 282. | 2.95 | Melrose-Mindoro School District / 3,927 |
| 283. | 2.95 | Stevens Point Area School District / 56,668 |
| 284. | 2.95 | New London School District / 15,499 |
| 285. | 2.95 | Plymouth School District / 16,939 |
| 286. | 2.95 | Glendale-River Hills School District / 12,664 |
| 287. | 2.95 | Fox Point Joint No. 2 School District / 11,065 |
| 288. | 2.95 | Waupun School District / 18,904 |
| 289. | 2.95 | Flambeau School District / 3,580 |
| 290. | 2.95 | Berlin Area School District / 10,636 |
| 291. | 2.95 | Menomonee Falls School District / 28,613 |
| 292. | 2.94 | Pittsville School District / 3,881 |
| 293. | 2.94 | Kewaunee School District / 6,700 |
| 294. | 2.94 | Lodi School District / 9,514 |
| 295. | 2.94 | Wautoma Area School District / 11,098 |
| 296. | 2.94 | Campbellsport School District / 10,652 |
| 297. | 2.94 | Wittenberg-Birnamwood School District / 7,865 |
| 298. | 2.94 | Cuba City School District / 4,749 |
| 299. | 2.93 | McFarland School District / 10,132 |
| 300. | 2.93 | Mosinee School District / 11,820 |
| 301. | 2.93 | Ashwaubenon School District / 16,360 |
| 302. | 2.93 | Edgerton School District / 11,246 |
| 303. | 2.93 | Raymond No. 14 School District / 3,220 |
| 304. | 2.92 | Gilman School District / 2,994 |
| 305. | 2.92 | Manitowoc School District / 39,139 |
| 306. | 2.92 | Cumberland School District / 5,816 |
| 307. | 2.92 | Monticello School District / 2,482 |
| 308. | 2.92 | Name N/A / 8,433 |
| 309. | 2.92 | Portage Community School District / 17,464 |
| 310. | 2.92 | Whitewater School District / 19,822 |
| 311. | 2.91 | Eleva-Strum School District / 3,555 |
| 312. | 2.91 | Marshfield School District / 27,346 |
| 313. | 2.91 | River Valley School District / 9,368 |
| 314. | 2.91 | Omro School District / 7,837 |
| 315. | 2.90 | Altoona School District / 8,910 |
| 316. | 2.90 | Wisconsin Heights School District / 5,975 |
| 317. | 2.90 | Oakfield School District / 3,183 |
| 318. | 2.90 | Cassville School District / 2,179 |
| 319. | 2.90 | Poynette School District / 6,343 |
| 320. | 2.90 | Oconto Falls School District / 11,022 |
| 321. | 2.89 | Geneva Joint No. 4 School District / 1,207 |
| 322. | 2.89 | Manawa School District / 4,940 |
| 323. | 2.89 | Winneconne Community School District / 8,725 |
| 324. | 2.89 | Luck School District / 3,653 |
| 325. | 2.89 | Cambridge School District / 5,815 |
| 326. | 2.89 | Mishicot School District / 6,131 |
| 327. | 2.89 | Columbus School District / 7,740 |
| 328. | 2.89 | Galesville-Ettrick-Trempealeau School District / 8,561 |
| 329. | 2.89 | Princeton School District / 3,107 |
| 330. | 2.88 | Maple School District / 7,978 |
| 331. | 2.88 | Crandon School District / 5,884 |
| 332. | 2.88 | Wisconsin Dells School District / 12,195 |
| 333. | 2.88 | Neillsville School District / 6,710 |
| 334. | 2.88 | Turtle Lake School District / 3,563 |
| 335. | 2.87 | Superior School District / 33,591 |
| 336. | 2.87 | Riverdale School District / 4,839 |
| 337. | 2.87 | Butternut School District / 1,266 |
| 338. | 2.86 | Peshtigo School District / 6,228 |
| 339. | 2.86 | Rice Lake Area School District / 15,885 |
| 340. | 2.85 | Rio Community School District / 3,030 |
| 341. | 2.85 | Shorewood School District / 13,154 |
| 342. | 2.85 | Wisconsin Rapids School District / 34,539 |
| 343. | 2.85 | Fontana Joint No. 8 School District / 2,355 |
| 344. | 2.84 | Medford Area School District / 14,376 |
| 345. | 2.84 | Rosholt School District / 3,766 |
| 346. | 2.83 | Coleman School District / 4,953 |
| 347. | 2.83 | Iola-Scandinavia School District / 4,646 |
| 348. | 2.83 | Antigo School District / 17,735 |
| 349. | 2.82 | Gillett School District / 4,124 |
| 350. | 2.82 | Amery School District / 9,858 |
| 351. | 2.82 | Marinette School District / 15,436 |
| 352. | 2.82 | Westfield School District / 9,180 |
| 353. | 2.82 | Florence School District / 4,486 |
| 354. | 2.81 | Linn Joint No. 6 School District / 844 |
| 355. | 2.81 | Black River Falls School District / 12,234 |
| 356. | 2.81 | Richfield Joint No. 1 School District / 4,439 |
| 357. | 2.81 | Pepin Area School District / 1,997 |
| 358. | 2.81 | New Holstein School District / 8,931 |
| 359. | 2.81 | Bayfield School District / 2,818 |
| 360. | 2.81 | Boscobel Area School District / 5,590 |
| 361. | 2.81 | Adams-Friendship Area School District / 14,675 |
| 362. | 2.80 | Frederic School District / 3,659 |
| 363. | 2.80 | Waupaca School District / 15,858 |
| 364. | 2.79 | Washburn School District / 3,922 |
| 365. | 2.79 | Stockbridge School District / 1,961 |
| 366. | 2.79 | Cochrane-Fountain City School District / 4,470 |
| 367. | 2.79 | Oconto School District / 7,342 |
| 368. | 2.79 | New Lisbon School District / 5,191 |
| 369. | 2.79 | Ladysmith-Hawkins School District / 6,043 |
| 370. | 2.78 | Lake Holcombe School District / 2,460 |
| 371. | 2.78 | Shell Lake School District / 3,589 |
| 372. | 2.77 | Rhinelander School District / 20,298 |
| 373. | 2.77 | Shawano School District / 17,415 |
| 374. | 2.77 | Unity School District / 7,132 |
| 375. | 2.76 | Rib Lake School District / 2,775 |
| 376. | 2.75 | Mellen School District / 1,907 |
| 377. | 2.75 | Merrill Area School District / 20,784 |
| 378. | 2.73 | Niagara School District / 2,417 |
| 378. | 2.73 | Nekoosa School District / 9,041 |
| 380. | 2.71 | Green Lake School District / 2,752 |
| 381. | 2.71 | Williams Bay School District / 3,258 |
| 382. | 2.71 | Montello School District / 6,294 |
| 383. | 2.71 | Elkhart Lake-Glenbeulah School District / 3,646 |
| 384. | 2.70 | Three Lakes School District / 4,230 |
| 385. | 2.70 | Prentice School District / 2,950 |
| 386. | 2.70 | Bruce School District / 3,734 |
| 387. | 2.68 | Siren School District / 3,061 |
| 388. | 2.68 | Solon Springs School District / 2,001 |
| 389. | 2.67 | De Soto Area School District / 3,936 |
| 390. | 2.64 | Wausaukee School District / 4,071 |
| 391. | 2.64 | Elcho School District / 3,455 |
| 392. | 2.64 | Hayward Community School District / 13,279 |
| 393. | 2.63 | Beecher-Dunbar-Pembine School District / 2,833 |
| 394. | 2.62 | Alma School District / 1,624 |
| 395. | 2.62 | Wild Rose School District / 5,316 |
| 396. | 2.62 | White Lake School District / 1,430 |
| 397. | 2.61 | Lac du Flambeau No. 1 School District / 3,442 |
| 398. | 2.61 | Grantsburg School District / 4,756 |
| 399. | 2.61 | Mercer School District / 1,670 |
| 400. | 2.61 | Woodruff Joint No. 1 School District / 5,340 |
| 401. | 2.60 | Drummond Area School District / 4,634 |
| 402. | 2.60 | South Shore School District / 1,696 |
| 403. | 2.60 | Spooner Area School District / 10,363 |
| 404. | 2.60 | Suring School District / 3,947 |
| 405. | 2.59 | Phelps School District / 1,472 |
| 406. | 2.59 | Southern Door County School District / 8,071 |
| 407. | 2.59 | Tomahawk School District / 9,867 |
| 408. | 2.57 | Crivitz School District / 5,983 |
| 409. | 2.56 | Wabeno Area School District / 3,771 |
| 410. | 2.55 | Phillips School District / 6,061 |
| 411. | 2.55 | Sevastopol School District / 4,844 |
| 412. | 2.54 | Minocqua Joint No. 1 School District / 6,761 |
| 413. | 2.53 | Sturgeon Bay School District / 8,520 |
| 414. | 2.52 | Lakeland Union High School District / 18,116 |
| 415. | 2.50 | Goodman-Armstrong School District / 919 |
| 416. | 2.49 | Hurley School District / 3,972 |
| 417. | 2.47 | Northland Pines School District / 11,080 |
| 418. | 2.45 | Webster School District / 5,634 |
| 419. | 2.44 | Northwood School District / 3,122 |
| 420. | 2.41 | Chequamegon School District / 6,680 |
| 421. | 2.41 | Birchwood School District / 2,094 |
| 422. | 2.40 | Winter School District / 2,847 |
| 423. | 2.36 | Gibraltar Area School District / 5,721 |
| 424. | 2.29 | Washington School District / 716 |
| 425. | 2.22 | North Lakeland School District / 2,573 |
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.
