| Rank | Median Age ▲ | School District / Population |
| 1. | 15.90 | Norris School District / 85 |
| 2. | 23.10 | Whitewater School District / 20,080 |
| 3. | 23.30 | Platteville School District / 14,915 |
| 4. | 28.50 | Menomonie Area School District / 26,904 |
| 5. | 28.80 | River Falls School District / 22,944 |
| 6. | 30.30 | Milwaukee School District / 594,784 |
| 7. | 30.90 | Madison Metropolitan School District / 226,308 |
| 8. | 31.40 | Cashton School District / 4,063 |
| 8. | 31.40 | Menominee Indian School District / 4,232 |
| 10. | 31.90 | Eau Claire Area School District / 80,993 |
| 10. | 31.90 | La Crosse School District / 62,886 |
| 12. | 32.60 | Loyal School District / 4,037 |
| 13. | 33.20 | West De Pere School District / 20,396 |
| 13. | 33.20 | Beloit School District / 36,790 |
| 15. | 33.40 | Verona Area School District / 37,827 |
| 16. | 33.50 | Genoa City Joint No. 2 School District / 5,155 |
| 17. | 33.60 | Granton Area School District / 2,139 |
| 17. | 33.60 | Stevens Point Area School District / 56,433 |
| 19. | 33.80 | Norwalk-Ontario-Wilton School District / 2,902 |
| 19. | 33.80 | St. Croix Central School District / 7,550 |
| 21. | 33.90 | Sun Prairie Area School District / 41,472 |
| 22. | 34.60 | Thorp School District / 4,424 |
| 23. | 34.90 | Green Bay Area School District / 136,070 |
| 24. | 35.00 | Kenosha School District / 127,931 |
| 25. | 35.40 | Somerset School District / 7,989 |
| 25. | 35.40 | New Richmond School District / 16,735 |
| 25. | 35.40 | Colby School District / 7,014 |
| 28. | 35.50 | Kaukauna Area School District / 22,458 |
| 29. | 35.70 | Abbotsford School District / 3,698 |
| 29. | 35.70 | Oshkosh Area School District / 79,472 |
| 31. | 35.90 | Baldwin-Woodville Area School District / 8,697 |
| 31. | 35.90 | Elk Mound Area School District / 4,854 |
| 33. | 36.10 | Appleton Area School District / 94,324 |
| 33. | 36.10 | Little Chute Area School District / 8,346 |
| 33. | 36.10 | Menasha School District / 25,400 |
| 36. | 36.30 | Belmont Community School District / 2,231 |
| 37. | 36.60 | Hillsboro School District / 4,359 |
| 38. | 36.70 | Wrightstown Community School District / 6,771 |
| 39. | 36.90 | Barneveld School District / 2,288 |
| 39. | 36.90 | Johnson Creek School District / 4,493 |
| 39. | 36.90 | Sharon Joint No. 11 School District / 2,044 |
| 42. | 37.00 | Holmen School District / 19,240 |
| 42. | 37.00 | Seymour Community School District / 12,917 |
| 44. | 37.20 | Shorewood School District / 13,162 |
| 44. | 37.20 | Waukesha School District / 93,322 |
| 46. | 37.30 | Athens School District / 3,930 |
| 46. | 37.30 | Kimberly Area School District / 26,118 |
| 48. | 37.40 | Marshall School District / 5,857 |
| 49. | 37.50 | Cambria-Friesland School District / 2,323 |
| 49. | 37.50 | Spencer School District / 4,519 |
| 49. | 37.50 | Twin Lakes No. 4 School District / 3,651 |
| 52. | 37.60 | De Pere Unified School District / 21,243 |
| 52. | 37.60 | Hudson School District / 30,123 |
| 54. | 37.70 | Superior School District / 33,892 |
| 55. | 37.80 | West Allis School District / 68,217 |
| 55. | 37.80 | Racine School District / 139,193 |
| 55. | 37.80 | D.C. Everest Area School District / 33,511 |
| 55. | 37.80 | Edgar School District / 3,676 |
| 55. | 37.80 | Arcadia School District / 5,731 |
| 55. | 37.80 | Augusta School District / 4,420 |
| 55. | 37.80 | Stanley-Boyd Area School District / 7,559 |
| 55. | 37.80 | Fennimore Community School District / 4,735 |
| 63. | 37.90 | Fall River School District / 2,873 |
| 63. | 37.90 | Howard-Suamico School District / 28,500 |
| 63. | 37.90 | Owen-Withee School District / 4,608 |
| 63. | 37.90 | Oak Creek-Franklin School District / 38,778 |
| 67. | 38.00 | Altoona School District / 8,896 |
| 67. | 38.00 | Janesville School District / 63,003 |
| 69. | 38.10 | Evansville Community School District / 9,234 |
| 69. | 38.10 | Watertown School District / 30,946 |
| 69. | 38.10 | DeForest Area School District / 20,282 |
| 69. | 38.10 | Union Grove Joint No. 1 School District / 5,388 |
| 69. | 38.10 | Ashland School District / 12,503 |
| 69. | 38.10 | Clayton School District / 1,838 |
| 75. | 38.20 | Sheboygan Area School District / 61,046 |
| 75. | 38.20 | Belleville School District / 5,365 |
| 75. | 38.20 | Deerfield Community School District / 4,143 |
| 75. | 38.20 | Delavan-Darien School District / 16,706 |
| 79. | 38.30 | Trevor-Wilmot Consolidated School District / 3,995 |
| 79. | 38.30 | Iowa-Grant School District / 4,427 |
| 79. | 38.30 | Cedar Grove-Belgium Area School District / 5,873 |
| 79. | 38.30 | Elkhorn Area School District / 17,672 |
| 79. | 38.30 | Waupun School District / 18,859 |
| 79. | 38.30 | Hartford Joint No. 1 School District / 17,741 |
| 85. | 38.40 | Royall School District / 5,511 |
| 86. | 38.50 | Brillion School District / 5,509 |
| 86. | 38.50 | Prescott School District / 7,824 |
| 86. | 38.50 | Walworth Joint No. 1 School District / 4,057 |
| 89. | 38.60 | Fond du Lac School District / 52,450 |
| 89. | 38.60 | Salem School District / 9,270 |
| 91. | 38.70 | Hortonville School District / 18,952 |
| 91. | 38.70 | Osceola School District / 9,074 |
| 93. | 38.80 | Silver Lake Joint No. 1 School District / 4,046 |
| 94. | 38.90 | Freedom Area School District / 9,097 |
| 95. | 39.00 | Neenah School District / 43,410 |
| 95. | 39.00 | Milton School District / 18,908 |
| 97. | 39.10 | Stratford School District / 5,087 |
| 97. | 39.10 | Hartland-Lakeside Joint No. 3 School District / 11,724 |
| 97. | 39.10 | Glenwood City School District / 4,058 |
| 97. | 39.10 | Onalaska School District / 17,471 |
| 97. | 39.10 | Mount Horeb Area School District / 12,121 |
| 102. | 39.20 | Wauzeka-Steuben School District / 1,600 |
| 102. | 39.20 | Middleton-Cross Plains School District / 37,298 |
| 102. | 39.20 | Howards Grove School District / 5,935 |
| 102. | 39.20 | Greenwood School District / 3,377 |
| 106. | 39.30 | Bangor School District / 3,781 |
| 107. | 39.40 | Lake Geneva-Genoa City Union High School District / 24,175 |
| 107. | 39.40 | Cameron School District / 4,871 |
| 107. | 39.40 | Ithaca School District / 1,808 |
| 107. | 39.40 | Reedsburg School District / 16,838 |
| 111. | 39.50 | Independence School District / 2,496 |
| 112. | 39.60 | Clear Lake School District / 3,452 |
| 112. | 39.60 | Whitefish Bay School District / 14,110 |
| 114. | 39.70 | Dodgeland School District / 6,214 |
| 114. | 39.70 | Wilmot Union High School District / 18,722 |
| 114. | 39.70 | Bloomer School District / 7,260 |
| 114. | 39.70 | Lac du Flambeau No. 1 School District / 3,438 |
| 114. | 39.70 | Ripon Area School District / 10,705 |
| 114. | 39.70 | Baraboo School District / 20,079 |
| 114. | 39.70 | Wausau School District / 54,246 |
| 114. | 39.70 | Port Washington-Saukville School District / 17,238 |
| 122. | 39.80 | West Bend School District / 51,553 |
| 122. | 39.80 | Waterloo School District / 5,415 |
| 122. | 39.80 | Cadott Community School District / 4,977 |
| 122. | 39.80 | Sparta Area School District / 17,279 |
| 122. | 39.80 | Wauwatosa School District / 46,396 |
| 122. | 39.80 | Auburndale School District / 4,721 |
| 128. | 39.90 | Almond-Bancroft School District / 2,642 |
| 128. | 39.90 | Richmond School District / 2,759 |
| 130. | 40.00 | Lake Mills Area School District / 9,268 |
| 130. | 40.00 | Alma Center School District / 3,066 |
| 130. | 40.00 | Luxemburg-Casco School District / 11,083 |
| 130. | 40.00 | Darlington Community School District / 4,917 |
| 134. | 40.10 | Chippewa Falls Area School District / 33,046 |
| 134. | 40.10 | Jefferson School District / 13,305 |
| 134. | 40.10 | Beaver Dam School District / 22,624 |
| 137. | 40.20 | Oregon School District / 19,594 |
| 137. | 40.20 | Lena School District / 2,667 |
| 137. | 40.20 | Pulaski Community School District / 19,371 |
| 137. | 40.20 | West Salem School District / 9,747 |
| 137. | 40.20 | Waunakee Community School District / 18,147 |
| 137. | 40.20 | Tomah Area School District / 20,020 |
| 137. | 40.20 | Edgerton School District / 11,389 |
| 144. | 40.30 | Cudahy School District / 18,267 |
| 144. | 40.30 | South Milwaukee School District / 21,156 |
| 144. | 40.30 | Swallow School District / 3,128 |
| 144. | 40.30 | Columbus School District / 7,940 |
| 148. | 40.40 | Oostburg School District / 6,059 |
| 148. | 40.40 | Lake Geneva Joint No. 1 School District / 16,995 |
| 148. | 40.40 | Ellsworth Community School District / 11,180 |
| 148. | 40.40 | Horicon School District / 5,660 |
| 152. | 40.50 | Barron Area School District / 8,920 |
| 152. | 40.50 | Monona Grove School District / 16,812 |
| 152. | 40.50 | Ashwaubenon School District / 15,975 |
| 152. | 40.50 | Spring Valley School District / 4,071 |
| 156. | 40.60 | Lomira School District / 6,748 |
| 157. | 40.70 | Boscobel Area School District / 5,618 |
| 157. | 40.70 | Oconomowoc Area School District / 33,538 |
| 157. | 40.70 | Tomorrow River School District / 4,981 |
| 157. | 40.70 | Dodgeville School District / 8,363 |
| 157. | 40.70 | McFarland School District / 10,459 |
| 162. | 40.80 | New Auburn School District / 1,808 |
| 162. | 40.80 | Fort Atkinson School District / 18,265 |
| 164. | 40.90 | Portage Community School District / 17,043 |
| 164. | 40.90 | Shiocton School District / 4,207 |
| 164. | 40.90 | Hilbert School District / 3,214 |
| 164. | 40.90 | Sauk Prairie School District / 15,656 |
| 164. | 40.90 | Westosha Central High School District / 19,682 |
| 169. | 41.00 | Melrose-Mindoro School District / 4,393 |
| 169. | 41.00 | Colfax School District / 4,677 |
| 169. | 41.00 | Denmark School District / 8,356 |
| 172. | 41.10 | Cuba City School District / 5,004 |
| 172. | 41.10 | Clinton Community School District / 5,929 |
| 172. | 41.10 | Shullsburg School District / 2,207 |
| 172. | 41.10 | Albany School District / 2,953 |
| 172. | 41.10 | Medford Area School District / 14,380 |
| 172. | 41.10 | Franklin Public School District / 28,964 |
| 172. | 41.10 | La Farge School District / 1,838 |
| 172. | 41.10 | Weston School District / 2,423 |
| 172. | 41.10 | New London School District / 16,079 |
| 181. | 41.20 | Burlington Area School District / 23,251 |
| 181. | 41.20 | Hamilton School District / 25,915 |
| 181. | 41.20 | Markesan School District / 6,698 |
| 181. | 41.20 | Reedsville School District / 4,773 |
| 185. | 41.30 | Palmyra-Eagle Area School District / 7,620 |
| 185. | 41.30 | Randolph School District / 3,228 |
| 185. | 41.30 | Arrowhead Union High School District / 33,805 |
| 185. | 41.30 | Poynette School District / 6,573 |
| 185. | 41.30 | Gilmanton School District / 1,047 |
| 190. | 41.40 | Black River Falls School District / 12,306 |
| 190. | 41.40 | Beecher-Dunbar-Pembine School District / 2,707 |
| 190. | 41.40 | Slinger School District / 15,694 |
| 190. | 41.40 | Kewaskum School District / 13,693 |
| 190. | 41.40 | Rosendale-Brandon School District / 5,524 |
| 190. | 41.40 | Washington-Caldwell School District / 1,909 |
| 190. | 41.40 | Merton Community School District / 6,522 |
| 197. | 41.50 | Hartford Union High School District / 31,920 |
| 197. | 41.50 | Flambeau School District / 3,743 |
| 197. | 41.50 | Boyceville Community School District / 4,531 |
| 200. | 41.60 | Mondovi School District / 5,805 |
| 200. | 41.60 | Waterford Joint No. 1 School District / 13,791 |
| 200. | 41.60 | East Troy Community School District / 11,708 |
| 200. | 41.60 | New Glarus School District / 4,667 |
| 200. | 41.60 | Lancaster Community School District / 6,174 |
| 200. | 41.60 | Pardeeville Area School District / 6,767 |
| 206. | 41.70 | Westby Area School District / 7,569 |
| 206. | 41.70 | Bristol No. 1 School District / 4,960 |
| 206. | 41.70 | Northern Ozaukee School District / 5,601 |
| 206. | 41.70 | Mosinee School District / 12,046 |
| 206. | 41.70 | Chilton School District / 6,924 |
| 211. | 41.80 | Juda School District / 1,283 |
| 211. | 41.80 | Eleva-Strum School District / 3,708 |
| 211. | 41.80 | Whitehall School District / 4,796 |
| 211. | 41.80 | Bowler School District / 2,467 |
| 211. | 41.80 | Waterford Union High School District / 18,322 |
| 211. | 41.80 | Lodi School District / 9,451 |
| 211. | 41.80 | Brodhead School District / 6,404 |
| 211. | 41.80 | Brown Deer School District / 11,999 |
| 211. | 41.80 | Blair-Taylor School District / 4,272 |
| 211. | 41.80 | Benton School District / 1,523 |
| 211. | 41.80 | Marshfield School District / 27,858 |
| 211. | 41.80 | Bonduel School District / 6,460 |
| 223. | 41.90 | Manawa School District / 5,072 |
| 223. | 41.90 | North Fond du Lac School District / 7,946 |
| 223. | 41.90 | Gresham School District / 1,969 |
| 223. | 41.90 | Osseo-Fairchild School District / 5,541 |
| 227. | 42.00 | Omro School District / 7,664 |
| 227. | 42.00 | St. Francis School District / 9,365 |
| 227. | 42.00 | Mayville School District / 8,013 |
| 227. | 42.00 | Prairie Farm School District / 1,801 |
| 227. | 42.00 | Wittenberg-Birnamwood School District / 7,837 |
| 227. | 42.00 | Stoughton Area School District / 20,696 |
| 233. | 42.10 | Clintonville School District / 9,939 |
| 233. | 42.10 | Big Foot Union High School District / 9,660 |
| 233. | 42.10 | Oconto School District / 7,361 |
| 233. | 42.10 | Fall Creek School District / 4,077 |
| 237. | 42.20 | Grafton School District / 13,419 |
| 238. | 42.30 | Argyle School District / 1,972 |
| 238. | 42.30 | Rio Community School District / 2,959 |
| 238. | 42.30 | Elmwood School District / 2,043 |
| 238. | 42.30 | Berlin Area School District / 10,424 |
| 238. | 42.30 | Monroe School District / 15,746 |
| 238. | 42.30 | Herman No. 22 School District / 1,798 |
| 238. | 42.30 | Plymouth School District / 16,964 |
| 238. | 42.30 | Union Grove Union High School District / 13,326 |
| 238. | 42.30 | Kohler School District / 2,260 |
| 238. | 42.30 | Kiel Area School District / 8,289 |
| 238. | 42.30 | Linn Joint No. 4 School District / 925 |
| 249. | 42.40 | Randall Joint No. 1 School District / 5,299 |
| 249. | 42.40 | Germantown School District / 25,684 |
| 249. | 42.40 | Galesville-Ettrick-Trempealeau School District / 8,595 |
| 252. | 42.50 | Kickapoo Area School District / 3,091 |
| 252. | 42.50 | St. Croix Falls School District / 7,052 |
| 252. | 42.50 | Muskego-Norway School District / 29,204 |
| 252. | 42.50 | Norway Joint No. 7 School District / 1,814 |
| 252. | 42.50 | Oconto Falls School District / 10,846 |
| 252. | 42.50 | Valders Area School District / 6,961 |
| 258. | 42.60 | Wisconsin Dells School District / 12,297 |
| 258. | 42.60 | Pewaukee School District / 16,844 |
| 258. | 42.60 | Wheatland Joint No. 1 School District / 4,166 |
| 258. | 42.60 | Mukwonago School District / 28,824 |
| 258. | 42.60 | Merrill Area School District / 20,729 |
| 263. | 42.80 | Neosho Joint No. 3 School District / 1,998 |
| 263. | 42.80 | Plum City School District / 1,820 |
| 263. | 42.80 | Pecatonica Area School District / 2,745 |
| 263. | 42.80 | Oakfield School District / 3,256 |
| 263. | 42.80 | Mineral Point School District / 4,267 |
| 263. | 42.80 | Marathon City School District / 4,472 |
| 263. | 42.80 | Manitowoc School District / 39,517 |
| 270. | 42.90 | Random Lake School District / 6,234 |
| 270. | 42.90 | Durand School District / 7,562 |
| 270. | 42.90 | River Valley School District / 9,364 |
| 273. | 43.10 | Riverdale School District / 4,900 |
| 273. | 43.10 | Wisconsin Heights School District / 5,876 |
| 273. | 43.10 | Monticello School District / 2,466 |
| 276. | 43.20 | Marion School District / 4,050 |
| 276. | 43.20 | Marinette School District / 15,567 |
| 276. | 43.20 | Campbellsport School District / 10,613 |
| 279. | 43.30 | Rice Lake Area School District / 16,147 |
| 279. | 43.30 | Port Edwards School District / 3,691 |
| 279. | 43.30 | Prairie du Chien Area School District / 8,669 |
| 279. | 43.30 | Rosholt School District / 4,005 |
| 279. | 43.30 | Mauston School District / 10,238 |
| 284. | 43.40 | Hustisford School District / 3,266 |
| 284. | 43.40 | Rubicon Joint No. 6 School District / 1,031 |
| 284. | 43.40 | Potosi School District / 2,272 |
| 284. | 43.40 | Peshtigo School District / 6,404 |
| 284. | 43.40 | Sheboygan Falls School District / 11,485 |
| 284. | 43.40 | Antigo School District / 17,774 |
| 284. | 43.40 | Richland School District / 11,127 |
| 284. | 43.40 | New Lisbon School District / 5,206 |
| 292. | 43.50 | River Ridge School District / 3,584 |
| 292. | 43.50 | Rib Lake School District / 2,673 |
| 294. | 43.60 | New Holstein School District / 9,402 |
| 294. | 43.60 | Cedarburg School District / 20,142 |
| 294. | 43.60 | Wisconsin Rapids School District / 34,949 |
| 294. | 43.60 | Cornell School District / 2,749 |
| 294. | 43.60 | Highland School District / 1,605 |
| 294. | 43.60 | Gillett School District / 4,134 |
| 300. | 43.70 | Parkview School District / 6,093 |
| 300. | 43.70 | Lake Country School District / 4,256 |
| 302. | 43.80 | Coleman School District / 4,900 |
| 302. | 43.80 | Black Hawk School District / 2,660 |
| 302. | 43.80 | Greenfield School District / 28,815 |
| 302. | 43.80 | Viroqua Area School District / 8,693 |
| 306. | 43.90 | Menomonee Falls School District / 28,932 |
| 307. | 44.00 | Crandon School District / 5,554 |
| 307. | 44.00 | Kewaunee School District / 6,899 |
| 309. | 44.10 | Mishicot School District / 6,230 |
| 309. | 44.10 | Wonewoc-Union Center School District / 2,982 |
| 309. | 44.10 | Unity School District / 7,294 |
| 312. | 44.20 | Shawano School District / 17,348 |
| 312. | 44.20 | Kettle Moraine School District / 24,060 |
| 312. | 44.20 | Southwestern Wisconsin School District / 3,974 |
| 312. | 44.20 | Amery School District / 9,718 |
| 316. | 44.30 | Raymond No. 14 School District / 3,301 |
| 316. | 44.30 | Pittsville School District / 3,863 |
| 316. | 44.30 | Grantsburg School District / 4,952 |
| 319. | 44.40 | Two Rivers School District / 13,042 |
| 319. | 44.40 | Gilman School District / 3,213 |
| 319. | 44.40 | Niagara School District / 2,477 |
| 319. | 44.40 | Weyauwega-Fremont School District / 7,051 |
| 319. | 44.40 | North Lake School District / 2,769 |
| 324. | 44.50 | Tri-County Area School District / 4,017 |
| 324. | 44.50 | Maple School District / 7,983 |
| 324. | 44.50 | Solon Springs School District / 2,121 |
| 327. | 44.60 | Neillsville School District / 6,443 |
| 328. | 44.70 | Richfield Joint No. 1 School District / 4,599 |
| 328. | 44.70 | Beloit Turner School District / 8,833 |
| 330. | 44.80 | Yorkville Joint No. 2 School District / 2,776 |
| 330. | 44.80 | Wautoma Area School District / 11,301 |
| 330. | 44.80 | Williams Bay School District / 3,546 |
| 333. | 44.90 | Cambridge School District / 5,783 |
| 333. | 44.90 | Algoma School District / 5,189 |
| 333. | 44.90 | Ladysmith-Hawkins School District / 6,020 |
| 336. | 45.00 | Seneca School District / 1,569 |
| 336. | 45.00 | Dover No. 1 School District / 1,813 |
| 338. | 45.10 | Turtle Lake School District / 3,345 |
| 338. | 45.10 | New Berlin School District / 35,110 |
| 338. | 45.10 | Mellen School District / 1,842 |
| 341. | 45.20 | Stockbridge School District / 1,868 |
| 341. | 45.20 | North Cape School District / 808 |
| 343. | 45.30 | Whitnall School District / 17,539 |
| 343. | 45.30 | Greendale School District / 14,046 |
| 343. | 45.30 | Winneconne Community School District / 9,425 |
| 343. | 45.30 | Stone Bank School District / 2,647 |
| 343. | 45.30 | Bayfield School District / 2,707 |
| 348. | 45.50 | Cochrane-Fountain City School District / 4,536 |
| 348. | 45.50 | Shell Lake School District / 3,438 |
| 348. | 45.50 | Luck School District / 3,640 |
| 348. | 45.50 | Paris Joint No. 1 School District / 1,718 |
| 348. | 45.50 | Hayward Community School District / 13,227 |
| 353. | 45.60 | Butternut School District / 1,228 |
| 353. | 45.60 | Waupaca School District / 15,851 |
| 353. | 45.60 | Necedah Area School District / 4,612 |
| 356. | 45.70 | Sturgeon Bay School District / 8,695 |
| 356. | 45.70 | Tigerton School District / 1,982 |
| 356. | 45.70 | Rhinelander School District / 20,528 |
| 359. | 45.80 | Brighton No. 1 School District / 1,347 |
| 360. | 45.90 | Southern Door County School District / 8,044 |
| 361. | 46.00 | Mequon-Thiensville School District / 26,456 |
| 362. | 46.10 | Iola-Scandinavia School District / 4,665 |
| 363. | 46.20 | Prentice School District / 2,966 |
| 364. | 46.40 | Fox Point Joint No. 2 School District / 11,001 |
| 365. | 46.70 | Friess Lake School District / 2,223 |
| 365. | 46.70 | Elkhart Lake-Glenbeulah School District / 3,816 |
| 367. | 46.80 | Chetek School District / 6,980 |
| 367. | 46.80 | Frederic School District / 3,756 |
| 367. | 46.80 | Nicolet Union High School District / 25,470 |
| 367. | 46.80 | North Crawford School District / 3,095 |
| 371. | 46.90 | Elmbrook School District / 44,737 |
| 372. | 47.00 | Cumberland School District / 5,860 |
| 372. | 47.00 | De Soto Area School District / 4,375 |
| 372. | 47.00 | Glendale-River Hills School District / 12,662 |
| 375. | 47.10 | Cassville School District / 2,086 |
| 376. | 47.30 | Erin School District / 2,530 |
| 377. | 47.50 | Westfield School District / 9,184 |
| 378. | 47.60 | Adams-Friendship Area School District / 14,638 |
| 379. | 47.80 | Siren School District / 3,047 |
| 380. | 47.90 | Washburn School District / 3,857 |
| 380. | 47.90 | Bruce School District / 3,702 |
| 382. | 48.00 | Fontana Joint No. 8 School District / 2,478 |
| 382. | 48.00 | Nekoosa School District / 9,138 |
| 384. | 48.20 | Hurley School District / 4,219 |
| 384. | 48.20 | Laona School District / 1,488 |
| 384. | 48.20 | Maple Dale-Indian Hill School District / 1,807 |
| 387. | 48.50 | Phillips School District / 6,041 |
| 387. | 48.50 | Montello School District / 6,209 |
| 389. | 48.60 | Tomahawk School District / 10,010 |
| 390. | 48.70 | Princeton School District / 3,039 |
| 391. | 48.80 | Spooner Area School District / 10,174 |
| 392. | 49.00 | Alma School District / 1,602 |
| 392. | 49.00 | Florence School District / 4,423 |
| 394. | 49.10 | Linn Joint No. 6 School District / 1,081 |
| 395. | 49.40 | Lake Holcombe School District / 2,687 |
| 396. | 49.70 | Geneva Joint No. 4 School District / 1,100 |
| 397. | 49.90 | Chequamegon School District / 6,640 |
| 398. | 50.10 | Woodruff Joint No. 1 School District / 5,371 |
| 399. | 50.30 | Three Lakes School District / 4,242 |
| 399. | 50.30 | Lakeland Union High School District / 18,023 |
| 401. | 50.50 | Weyerhaeuser Area School District / 1,157 |
| 402. | 50.60 | Pepin Area School District / 2,023 |
| 403. | 50.80 | White Lake School District / 1,608 |
| 404. | 50.90 | Winter School District / 2,900 |
| 405. | 51.00 | Northland Pines School District / 11,340 |
| 406. | 51.10 | South Shore School District / 1,734 |
| 406. | 51.10 | Minocqua Joint No. 1 School District / 6,701 |
| 406. | 51.10 | Suring School District / 4,087 |
| 409. | 51.20 | Wabeno Area School District / 3,835 |
| 410. | 51.30 | Wausaukee School District / 4,056 |
| 410. | 51.30 | Green Lake School District / 2,756 |
| 412. | 51.40 | Wild Rose School District / 4,927 |
| 412. | 51.40 | Goodman-Armstrong School District / 1,028 |
| 414. | 51.60 | Sevastopol School District / 4,819 |
| 415. | 51.90 | Northwood School District / 3,059 |
| 416. | 52.00 | Crivitz School District / 5,857 |
| 416. | 52.00 | Drummond Area School District / 4,580 |
| 418. | 52.10 | Birchwood School District / 2,023 |
| 419. | 52.50 | Elcho School District / 3,193 |
| 420. | 52.70 | Webster School District / 5,524 |
| 421. | 55.50 | Phelps School District / 1,207 |
| 422. | 56.60 | Mercer School District / 1,407 |
| 423. | 57.20 | Gibraltar Area School District / 5,519 |
| 424. | 58.10 | Washington School District / 708 |
| 424. | 58.10 | North Lakeland School District / 2,513 |
Please note that we only rank locations with 'Median Age' data. The rank above might not be a complete list. Locations without 'Median Age' data are not listed.
