| Rank | Median Age ▲ | School District / Population |
| 1. | 15.70 | Norris School District / 40 |
| 2. | 22.80 | Platteville School District / 14,589 |
| 3. | 24.60 | Whitewater School District / 19,822 |
| 4. | 28.00 | Menomonie Area School District / 27,164 |
| 5. | 28.50 | River Falls School District / 22,886 |
| 6. | 30.50 | Milwaukee School District / 594,260 |
| 7. | 30.80 | Madison Metropolitan School District / 227,184 |
| 8. | 31.90 | Eau Claire Area School District / 81,106 |
| 9. | 32.40 | Loyal School District / 4,126 |
| 10. | 32.60 | La Crosse School District / 63,061 |
| 10. | 32.60 | Menominee Indian School District / 4,274 |
| 12. | 32.90 | Cashton School District / 3,688 |
| 13. | 33.00 | St. Croix Central School District / 7,437 |
| 14. | 33.10 | Stevens Point Area School District / 56,668 |
| 15. | 33.20 | Norwalk-Ontario-Wilton School District / 2,985 |
| 16. | 33.30 | West De Pere School District / 19,892 |
| 17. | 33.40 | Beloit School District / 36,723 |
| 18. | 33.80 | Verona Area School District / 37,836 |
| 19. | 33.90 | Sun Prairie Area School District / 42,002 |
| 20. | 34.00 | Augusta School District / 4,826 |
| 21. | 34.40 | Thorp School District / 4,366 |
| 22. | 34.60 | Greenwood School District / 3,694 |
| 22. | 34.60 | New Richmond School District / 17,415 |
| 22. | 34.60 | Granton Area School District / 2,130 |
| 22. | 34.60 | Belmont Community School District / 1,998 |
| 26. | 34.80 | Genoa City Joint No. 2 School District / 5,211 |
| 27. | 35.20 | Johnson Creek School District / 4,555 |
| 28. | 35.30 | Oshkosh Area School District / 79,941 |
| 28. | 35.30 | Kenosha School District / 127,921 |
| 28. | 35.30 | Kaukauna Area School District / 22,706 |
| 28. | 35.30 | Green Bay Area School District / 136,304 |
| 32. | 35.50 | Kimberly Area School District / 25,942 |
| 33. | 35.60 | Wrightstown Community School District / 6,844 |
| 33. | 35.60 | Little Chute Area School District / 8,180 |
| 35. | 35.80 | Holmen School District / 19,651 |
| 35. | 35.80 | De Pere Unified School District / 20,790 |
| 37. | 35.90 | Somerset School District / 7,908 |
| 37. | 35.90 | Independence School District / 2,609 |
| 37. | 35.90 | Walworth Joint No. 1 School District / 3,997 |
| 40. | 36.00 | Brillion School District / 5,592 |
| 40. | 36.00 | Clayton School District / 1,931 |
| 42. | 36.10 | Colby School District / 6,732 |
| 43. | 36.30 | La Farge School District / 1,946 |
| 43. | 36.30 | Athens School District / 4,414 |
| 45. | 36.40 | Elkhorn Area School District / 17,939 |
| 45. | 36.40 | Baldwin-Woodville Area School District / 8,467 |
| 47. | 36.50 | Elk Mound Area School District / 4,533 |
| 47. | 36.50 | Abbotsford School District / 3,459 |
| 49. | 36.80 | Deerfield Community School District / 3,981 |
| 50. | 37.00 | DeForest Area School District / 19,617 |
| 50. | 37.00 | Waukesha School District / 92,659 |
| 50. | 37.00 | Linn Joint No. 4 School District / 1,127 |
| 53. | 37.10 | Appleton Area School District / 94,486 |
| 53. | 37.10 | Royall School District / 5,559 |
| 53. | 37.10 | Ripon Area School District / 10,768 |
| 53. | 37.10 | Menasha School District / 24,903 |
| 53. | 37.10 | Marshall School District / 5,905 |
| 53. | 37.10 | Spring Valley School District / 4,212 |
| 59. | 37.20 | Belleville School District / 5,511 |
| 59. | 37.20 | Salem School District / 9,104 |
| 61. | 37.30 | Stanley-Boyd Area School District / 7,524 |
| 62. | 37.40 | Edgar School District / 3,606 |
| 62. | 37.40 | Baraboo School District / 20,337 |
| 64. | 37.50 | Altoona School District / 8,910 |
| 64. | 37.50 | Hillsboro School District / 4,617 |
| 66. | 37.60 | Racine School District / 138,878 |
| 66. | 37.60 | Oak Creek-Franklin School District / 39,009 |
| 68. | 37.70 | Fall River School District / 2,693 |
| 68. | 37.70 | Delavan-Darien School District / 17,203 |
| 68. | 37.70 | Janesville School District / 63,046 |
| 71. | 37.80 | Bangor School District / 4,053 |
| 71. | 37.80 | Hartland-Lakeside Joint No. 3 School District / 11,479 |
| 71. | 37.80 | Sharon Joint No. 11 School District / 1,876 |
| 71. | 37.80 | Whitehall School District / 5,165 |
| 71. | 37.80 | Prescott School District / 7,771 |
| 76. | 37.90 | Osceola School District / 9,145 |
| 76. | 37.90 | Superior School District / 33,591 |
| 78. | 38.00 | Highland School District / 1,671 |
| 78. | 38.00 | Hudson School District / 29,970 |
| 78. | 38.00 | Onalaska School District / 17,255 |
| 78. | 38.00 | Watertown School District / 30,876 |
| 82. | 38.10 | West Allis School District / 68,742 |
| 82. | 38.10 | Barneveld School District / 2,205 |
| 82. | 38.10 | D.C. Everest Area School District / 33,597 |
| 85. | 38.20 | Owen-Withee School District / 4,417 |
| 85. | 38.20 | Twin Lakes No. 4 School District / 3,532 |
| 85. | 38.20 | Middleton-Cross Plains School District / 38,506 |
| 85. | 38.20 | Hartford Joint No. 1 School District / 17,330 |
| 85. | 38.20 | Hortonville School District / 19,216 |
| 90. | 38.30 | Cedar Grove-Belgium Area School District / 5,658 |
| 90. | 38.30 | Arcadia School District / 5,653 |
| 92. | 38.40 | Seymour Community School District / 12,861 |
| 93. | 38.50 | Neenah School District / 44,048 |
| 93. | 38.50 | Waupun School District / 18,904 |
| 93. | 38.50 | Howard-Suamico School District / 28,532 |
| 93. | 38.50 | Bloomer School District / 7,275 |
| 97. | 38.60 | Evansville Community School District / 9,627 |
| 98. | 38.70 | Mayville School District / 7,853 |
| 98. | 38.70 | Cambria-Friesland School District / 2,231 |
| 100. | 38.80 | Sheboygan Area School District / 60,985 |
| 100. | 38.80 | Iowa-Grant School District / 4,489 |
| 100. | 38.80 | Glenwood City School District / 3,854 |
| 103. | 38.90 | Port Washington-Saukville School District / 16,846 |
| 103. | 38.90 | Silver Lake Joint No. 1 School District / 4,226 |
| 103. | 38.90 | Shorewood School District / 13,154 |
| 103. | 38.90 | Wausau School District / 54,266 |
| 107. | 39.00 | Waterloo School District / 5,472 |
| 107. | 39.00 | Milton School District / 18,878 |
| 109. | 39.20 | Fond du Lac School District / 52,549 |
| 110. | 39.30 | Lake Geneva-Genoa City Union High School District / 24,508 |
| 110. | 39.30 | Blair-Taylor School District / 4,266 |
| 110. | 39.30 | Lena School District / 2,586 |
| 110. | 39.30 | Franklin Public School District / 28,209 |
| 110. | 39.30 | Gilmanton School District / 1,206 |
| 115. | 39.40 | Dodgeland School District / 6,232 |
| 115. | 39.40 | Reedsburg School District / 16,457 |
| 115. | 39.40 | Markesan School District / 6,482 |
| 115. | 39.40 | Chilton School District / 7,104 |
| 115. | 39.40 | Freedom Area School District / 9,014 |
| 115. | 39.40 | South Milwaukee School District / 21,119 |
| 121. | 39.50 | Spencer School District / 4,556 |
| 121. | 39.50 | Sparta Area School District / 16,882 |
| 121. | 39.50 | West Salem School District / 9,760 |
| 121. | 39.50 | Poynette School District / 6,343 |
| 125. | 39.60 | Almond-Bancroft School District / 2,701 |
| 125. | 39.60 | Stratford School District / 5,112 |
| 125. | 39.60 | Cameron School District / 5,070 |
| 125. | 39.60 | Ashland School District / 12,231 |
| 129. | 39.70 | Denmark School District / 8,698 |
| 129. | 39.70 | Lomira School District / 6,726 |
| 129. | 39.70 | Fennimore Community School District / 4,749 |
| 132. | 39.80 | Trevor-Wilmot Consolidated School District / 3,697 |
| 132. | 39.80 | Westosha Central High School District / 19,427 |
| 132. | 39.80 | Chippewa Falls Area School District / 33,121 |
| 132. | 39.80 | Wauwatosa School District / 46,457 |
| 136. | 39.90 | Bowler School District / 2,555 |
| 136. | 39.90 | Albany School District / 2,873 |
| 136. | 39.90 | Auburndale School District / 4,529 |
| 136. | 39.90 | Ithaca School District / 1,898 |
| 136. | 39.90 | Whitefish Bay School District / 14,063 |
| 136. | 39.90 | Bristol No. 1 School District / 4,818 |
| 136. | 39.90 | West Bend School District / 51,521 |
| 136. | 39.90 | Sauk Prairie School District / 15,534 |
| 144. | 40.00 | Mount Horeb Area School District / 11,939 |
| 144. | 40.00 | Norway Joint No. 7 School District / 1,877 |
| 144. | 40.00 | Valders Area School District / 7,094 |
| 147. | 40.10 | Waunakee Community School District / 18,207 |
| 147. | 40.10 | Wilmot Union High School District / 18,948 |
| 147. | 40.10 | Jefferson School District / 13,377 |
| 147. | 40.10 | Bonduel School District / 6,523 |
| 151. | 40.20 | Swallow School District / 3,304 |
| 151. | 40.20 | Tomah Area School District / 20,165 |
| 151. | 40.20 | Pulaski Community School District / 19,999 |
| 151. | 40.20 | Monona Grove School District / 17,268 |
| 151. | 40.20 | Barron Area School District / 8,920 |
| 156. | 40.30 | Oregon School District / 19,779 |
| 156. | 40.30 | Horicon School District / 5,518 |
| 158. | 40.40 | Alma Center School District / 3,037 |
| 158. | 40.40 | Juda School District / 1,389 |
| 158. | 40.40 | Melrose-Mindoro School District / 3,927 |
| 158. | 40.40 | Boyceville Community School District / 4,552 |
| 158. | 40.40 | Clear Lake School District / 3,181 |
| 158. | 40.40 | Colfax School District / 4,575 |
| 158. | 40.40 | Cadott Community School District / 5,102 |
| 165. | 40.50 | Brodhead School District / 6,327 |
| 165. | 40.50 | Plymouth School District / 16,939 |
| 165. | 40.50 | Darlington Community School District / 5,159 |
| 165. | 40.50 | Mineral Point School District / 4,613 |
| 169. | 40.60 | Kewaskum School District / 14,141 |
| 169. | 40.60 | Fort Atkinson School District / 18,361 |
| 169. | 40.60 | Cudahy School District / 18,251 |
| 169. | 40.60 | Ashwaubenon School District / 16,360 |
| 169. | 40.60 | Luxemburg-Casco School District / 10,979 |
| 169. | 40.60 | Portage Community School District / 17,464 |
| 175. | 40.70 | Wauzeka-Steuben School District / 1,706 |
| 175. | 40.70 | North Fond du Lac School District / 7,977 |
| 175. | 40.70 | Merton Community School District / 6,374 |
| 175. | 40.70 | Wheatland Joint No. 1 School District / 4,538 |
| 175. | 40.70 | Wittenberg-Birnamwood School District / 7,865 |
| 180. | 40.80 | Grafton School District / 14,470 |
| 180. | 40.80 | Rosendale-Brandon School District / 5,418 |
| 180. | 40.80 | Lake Geneva Joint No. 1 School District / 16,963 |
| 183. | 40.90 | Potosi School District / 2,400 |
| 183. | 40.90 | Boscobel Area School District / 5,590 |
| 183. | 40.90 | Medford Area School District / 14,376 |
| 183. | 40.90 | Hamilton School District / 26,157 |
| 183. | 40.90 | Arrowhead Union High School District / 34,358 |
| 183. | 40.90 | Northern Ozaukee School District / 5,747 |
| 183. | 40.90 | Tomorrow River School District / 5,035 |
| 190. | 41.00 | Shiocton School District / 4,217 |
| 190. | 41.00 | Howards Grove School District / 6,016 |
| 190. | 41.00 | St. Croix Falls School District / 6,776 |
| 193. | 41.10 | Reedsville School District / 4,626 |
| 193. | 41.10 | Union Grove Joint No. 1 School District / 5,369 |
| 195. | 41.20 | New London School District / 15,499 |
| 195. | 41.20 | Beaver Dam School District / 22,560 |
| 197. | 41.30 | Lake Country School District / 4,741 |
| 198. | 41.40 | Clintonville School District / 10,096 |
| 198. | 41.40 | East Troy Community School District / 11,922 |
| 200. | 41.50 | Oconto Falls School District / 11,022 |
| 200. | 41.50 | Hartford Union High School District / 31,949 |
| 200. | 41.50 | Ellsworth Community School District / 11,203 |
| 200. | 41.50 | Marshfield School District / 27,346 |
| 204. | 41.60 | Columbus School District / 7,740 |
| 204. | 41.60 | Kickapoo Area School District / 2,951 |
| 204. | 41.60 | Marathon City School District / 4,747 |
| 204. | 41.60 | Oostburg School District / 6,019 |
| 208. | 41.70 | Random Lake School District / 6,124 |
| 208. | 41.70 | Pardeeville Area School District / 6,895 |
| 208. | 41.70 | Palmyra-Eagle Area School District / 7,258 |
| 208. | 41.70 | Oconomowoc Area School District / 32,686 |
| 208. | 41.70 | Eleva-Strum School District / 3,555 |
| 213. | 41.80 | Edgerton School District / 11,246 |
| 213. | 41.80 | Waterford Joint No. 1 School District / 13,677 |
| 213. | 41.80 | Coleman School District / 4,953 |
| 216. | 41.90 | Lake Mills Area School District / 9,154 |
| 216. | 41.90 | Fall Creek School District / 3,894 |
| 216. | 41.90 | Lodi School District / 9,514 |
| 216. | 41.90 | Randall Joint No. 1 School District / 5,338 |
| 220. | 42.00 | Waterford Union High School District / 18,214 |
| 220. | 42.00 | Stoughton Area School District / 21,192 |
| 220. | 42.00 | Herman No. 22 School District / 1,689 |
| 220. | 42.00 | Mondovi School District / 5,826 |
| 220. | 42.00 | Merrill Area School District / 20,784 |
| 225. | 42.10 | Dover No. 1 School District / 1,824 |
| 225. | 42.10 | Germantown School District / 25,626 |
| 227. | 42.20 | Slinger School District / 15,792 |
| 227. | 42.20 | Burlington Area School District / 23,174 |
| 227. | 42.20 | Kiel Area School District / 8,819 |
| 227. | 42.20 | Flambeau School District / 3,580 |
| 227. | 42.20 | Elmwood School District / 2,238 |
| 227. | 42.20 | Southwestern Wisconsin School District / 3,943 |
| 233. | 42.30 | Pewaukee School District / 16,961 |
| 233. | 42.30 | Name N/A / 213,319 |
| 235. | 42.40 | Benton School District / 1,549 |
| 235. | 42.40 | Shullsburg School District / 2,224 |
| 235. | 42.40 | Big Foot Union High School District / 9,072 |
| 238. | 42.50 | Seneca School District / 1,608 |
| 238. | 42.50 | Viroqua Area School District / 8,847 |
| 238. | 42.50 | Mosinee School District / 11,820 |
| 238. | 42.50 | Sheboygan Falls School District / 11,566 |
| 238. | 42.50 | Cassville School District / 2,179 |
| 238. | 42.50 | Mukwonago School District / 28,642 |
| 244. | 42.60 | Brown Deer School District / 11,980 |
| 244. | 42.60 | Kohler School District / 2,366 |
| 244. | 42.60 | Westby Area School District / 7,727 |
| 247. | 42.70 | Monroe School District / 15,857 |
| 247. | 42.70 | Durand School District / 7,490 |
| 247. | 42.70 | River Valley School District / 9,368 |
| 247. | 42.70 | Dodgeville School District / 7,964 |
| 247. | 42.70 | Port Edwards School District / 4,099 |
| 247. | 42.70 | Parkview School District / 6,171 |
| 247. | 42.70 | Richmond School District / 2,815 |
| 254. | 42.80 | Berlin Area School District / 10,636 |
| 254. | 42.80 | Pittsville School District / 3,881 |
| 254. | 42.80 | Prairie du Chien Area School District / 8,530 |
| 254. | 42.80 | Argyle School District / 1,912 |
| 254. | 42.80 | Richland School District / 11,315 |
| 254. | 42.80 | Muskego-Norway School District / 29,209 |
| 260. | 42.90 | Hustisford School District / 3,459 |
| 260. | 42.90 | Union Grove Union High School District / 13,252 |
| 260. | 42.90 | Pecatonica Area School District / 2,690 |
| 260. | 42.90 | Wonewoc-Union Center School District / 3,244 |
| 260. | 42.90 | New Glarus School District / 4,536 |
| 265. | 43.00 | Mauston School District / 10,096 |
| 265. | 43.00 | Paris Joint No. 1 School District / 1,874 |
| 265. | 43.00 | Lancaster Community School District / 6,183 |
| 265. | 43.00 | Cuba City School District / 4,749 |
| 269. | 43.10 | Hilbert School District / 2,857 |
| 269. | 43.10 | McFarland School District / 10,132 |
| 271. | 43.20 | Marinette School District / 15,436 |
| 271. | 43.20 | Rio Community School District / 3,030 |
| 271. | 43.20 | Black River Falls School District / 12,234 |
| 271. | 43.20 | Washington-Caldwell School District / 1,784 |
| 275. | 43.30 | Galesville-Ettrick-Trempealeau School District / 8,561 |
| 276. | 43.40 | Manawa School District / 4,940 |
| 276. | 43.40 | Manitowoc School District / 39,139 |
| 276. | 43.40 | Friess Lake School District / 2,513 |
| 276. | 43.40 | Oconto School District / 7,342 |
| 276. | 43.40 | Rubicon Joint No. 6 School District / 1,177 |
| 276. | 43.40 | North Cape School District / 876 |
| 276. | 43.40 | Beecher-Dunbar-Pembine School District / 2,833 |
| 276. | 43.40 | Clinton Community School District / 5,765 |
| 284. | 43.50 | Niagara School District / 2,417 |
| 285. | 43.60 | Crandon School District / 5,884 |
| 285. | 43.60 | Kettle Moraine School District / 24,829 |
| 285. | 43.60 | Cedarburg School District / 19,473 |
| 285. | 43.60 | Campbellsport School District / 10,652 |
| 285. | 43.60 | Gresham School District / 1,966 |
| 285. | 43.60 | Necedah Area School District / 4,769 |
| 285. | 43.60 | Wisconsin Rapids School District / 34,539 |
| 285. | 43.60 | Black Hawk School District / 2,583 |
| 285. | 43.60 | Weston School District / 2,316 |
| 294. | 43.70 | Grantsburg School District / 4,756 |
| 295. | 43.80 | New Lisbon School District / 5,191 |
| 295. | 43.80 | Plum City School District / 1,663 |
| 297. | 44.00 | Wisconsin Heights School District / 5,975 |
| 297. | 44.00 | Monticello School District / 2,482 |
| 297. | 44.00 | North Lake School District / 2,971 |
| 297. | 44.00 | Maple School District / 7,978 |
| 297. | 44.00 | Oakfield School District / 3,183 |
| 302. | 44.10 | Neosho Joint No. 3 School District / 2,094 |
| 302. | 44.10 | Laona School District / 1,491 |
| 302. | 44.10 | Prentice School District / 2,950 |
| 302. | 44.10 | Omro School District / 7,837 |
| 302. | 44.10 | New Auburn School District / 1,820 |
| 302. | 44.10 | Neillsville School District / 6,710 |
| 302. | 44.10 | Bayfield School District / 2,818 |
| 309. | 44.20 | Antigo School District / 17,735 |
| 309. | 44.20 | Prairie Farm School District / 1,690 |
| 309. | 44.20 | Marion School District / 3,980 |
| 312. | 44.30 | Wautoma Area School District / 11,098 |
| 312. | 44.30 | Shell Lake School District / 3,589 |
| 314. | 44.40 | Mishicot School District / 6,131 |
| 314. | 44.40 | Southern Door County School District / 8,071 |
| 316. | 44.50 | Riverdale School District / 4,839 |
| 316. | 44.50 | Gillett School District / 4,124 |
| 316. | 44.50 | Algoma School District / 5,367 |
| 316. | 44.50 | Greendale School District / 14,085 |
| 320. | 44.60 | Randolph School District / 3,206 |
| 320. | 44.60 | Raymond No. 14 School District / 3,220 |
| 320. | 44.60 | Ladysmith-Hawkins School District / 6,043 |
| 323. | 44.70 | Rice Lake Area School District / 15,885 |
| 323. | 44.70 | Shawano School District / 17,415 |
| 323. | 44.70 | Turtle Lake School District / 3,563 |
| 323. | 44.70 | Osseo-Fairchild School District / 5,340 |
| 327. | 44.80 | Menomonee Falls School District / 28,613 |
| 327. | 44.80 | North Crawford School District / 3,190 |
| 327. | 44.80 | Greenfield School District / 28,825 |
| 330. | 44.90 | Rosholt School District / 3,766 |
| 330. | 44.90 | Richfield Joint No. 1 School District / 4,439 |
| 330. | 44.90 | New Berlin School District / 34,658 |
| 330. | 44.90 | Cochrane-Fountain City School District / 4,470 |
| 330. | 44.90 | Cumberland School District / 5,816 |
| 330. | 44.90 | Siren School District / 3,061 |
| 336. | 45.00 | Peshtigo School District / 6,228 |
| 336. | 45.00 | Luck School District / 3,653 |
| 338. | 45.10 | Unity School District / 7,132 |
| 338. | 45.10 | Fox Point Joint No. 2 School District / 11,065 |
| 338. | 45.10 | Lac du Flambeau No. 1 School District / 3,442 |
| 341. | 45.20 | St. Francis School District / 9,365 |
| 341. | 45.20 | Weyauwega-Fremont School District / 7,021 |
| 341. | 45.20 | Tri-County Area School District / 3,963 |
| 341. | 45.20 | Kewaunee School District / 6,700 |
| 341. | 45.20 | Whitnall School District / 17,503 |
| 346. | 45.30 | River Ridge School District / 3,712 |
| 346. | 45.30 | Wisconsin Dells School District / 12,195 |
| 346. | 45.30 | Cornell School District / 2,733 |
| 346. | 45.30 | Erin School District / 2,707 |
| 350. | 45.40 | Hayward Community School District / 13,279 |
| 351. | 45.50 | Sturgeon Bay School District / 8,520 |
| 351. | 45.50 | Iola-Scandinavia School District / 4,646 |
| 353. | 45.70 | Nicolet Union High School District / 25,475 |
| 353. | 45.70 | Stockbridge School District / 1,961 |
| 355. | 45.80 | Winneconne Community School District / 8,725 |
| 356. | 45.90 | Two Rivers School District / 12,950 |
| 356. | 45.90 | Amery School District / 9,858 |
| 358. | 46.00 | Mellen School District / 1,907 |
| 359. | 46.10 | Butternut School District / 1,266 |
| 360. | 46.20 | Rib Lake School District / 2,775 |
| 360. | 46.20 | Yorkville Joint No. 2 School District / 2,803 |
| 360. | 46.20 | Frederic School District / 3,659 |
| 360. | 46.20 | Glendale-River Hills School District / 12,664 |
| 364. | 46.40 | Bruce School District / 3,734 |
| 364. | 46.40 | Stone Bank School District / 2,674 |
| 364. | 46.40 | Gilman School District / 2,994 |
| 367. | 46.60 | Tigerton School District / 1,872 |
| 367. | 46.60 | Rhinelander School District / 20,298 |
| 367. | 46.60 | Waupaca School District / 15,858 |
| 370. | 46.70 | Mequon-Thiensville School District / 26,457 |
| 370. | 46.70 | Beloit Turner School District / 8,753 |
| 372. | 47.00 | Adams-Friendship Area School District / 14,675 |
| 372. | 47.00 | New Holstein School District / 8,931 |
| 372. | 47.00 | Elmbrook School District / 44,852 |
| 375. | 47.30 | Westfield School District / 9,180 |
| 376. | 47.40 | Maple Dale-Indian Hill School District / 1,746 |
| 376. | 47.40 | Washburn School District / 3,922 |
| 376. | 47.40 | Brighton No. 1 School District / 1,284 |
| 379. | 47.50 | Princeton School District / 3,107 |
| 380. | 47.60 | Elkhart Lake-Glenbeulah School District / 3,646 |
| 381. | 48.00 | Hurley School District / 3,972 |
| 381. | 48.00 | Woodruff Joint No. 1 School District / 5,340 |
| 383. | 48.20 | Name N/A / 8,433 |
| 384. | 48.50 | Florence School District / 4,486 |
| 384. | 48.50 | Montello School District / 6,294 |
| 386. | 48.70 | Cambridge School District / 5,815 |
| 386. | 48.70 | Spooner Area School District / 10,363 |
| 388. | 49.00 | Williams Bay School District / 3,258 |
| 389. | 49.20 | Geneva Joint No. 4 School District / 1,207 |
| 390. | 49.30 | Solon Springs School District / 2,001 |
| 391. | 49.60 | Fontana Joint No. 8 School District / 2,355 |
| 391. | 49.60 | Lake Holcombe School District / 2,460 |
| 393. | 49.70 | Nekoosa School District / 9,041 |
| 394. | 49.80 | Phillips School District / 6,061 |
| 395. | 50.00 | Alma School District / 1,624 |
| 396. | 50.10 | Sevastopol School District / 4,844 |
| 396. | 50.10 | Chequamegon School District / 6,680 |
| 398. | 50.40 | Three Lakes School District / 4,230 |
| 398. | 50.40 | Northland Pines School District / 11,080 |
| 400. | 50.60 | Tomahawk School District / 9,867 |
| 400. | 50.60 | Pepin Area School District / 1,997 |
| 400. | 50.60 | Wausaukee School District / 4,071 |
| 403. | 50.90 | De Soto Area School District / 3,936 |
| 404. | 51.10 | Lakeland Union High School District / 18,116 |
| 405. | 51.20 | Wild Rose School District / 5,316 |
| 406. | 51.50 | White Lake School District / 1,430 |
| 407. | 51.60 | Green Lake School District / 2,752 |
| 408. | 51.70 | Crivitz School District / 5,983 |
| 408. | 51.70 | Winter School District / 2,847 |
| 410. | 52.00 | South Shore School District / 1,696 |
| 411. | 52.10 | Drummond Area School District / 4,634 |
| 412. | 52.30 | Suring School District / 3,947 |
| 413. | 52.40 | Linn Joint No. 6 School District / 844 |
| 414. | 52.80 | Mercer School District / 1,670 |
| 415. | 53.30 | Wabeno Area School District / 3,771 |
| 416. | 53.50 | Minocqua Joint No. 1 School District / 6,761 |
| 417. | 53.80 | Webster School District / 5,634 |
| 418. | 54.10 | Phelps School District / 1,472 |
| 419. | 54.20 | Elcho School District / 3,455 |
| 420. | 54.30 | Northwood School District / 3,122 |
| 421. | 54.80 | Birchwood School District / 2,094 |
| 422. | 55.50 | Goodman-Armstrong School District / 919 |
| 423. | 58.20 | Gibraltar Area School District / 5,721 |
| 424. | 60.90 | North Lakeland School District / 2,573 |
| 425. | 63.80 | Washington School District / 716 |
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.
*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.
