| Rank | Irish as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 31.2% | Shullsburg School District / 2,220 |
| 2. | 28.0% | Darlington Community School District / 4,799 |
| 3. | 27.7% | Fontana Joint No. 8 School District / 2,591 |
| 4. | 26.9% | Benton School District / 1,644 |
| 5. | 26.5% | Stone Bank School District / 2,600 |
| 6. | 26.1% | Whitefish Bay School District / 13,988 |
| 7. | 25.5% | Mineral Point School District / 4,690 |
| 8. | 24.8% | Linn Joint No. 4 School District / 1,019 |
| 9. | 24.3% | Erin School District / 2,564 |
| 10. | 23.4% | Genoa City Joint No. 2 School District / 4,920 |
| 11. | 23.1% | Merton Community School District / 6,263 |
| 12. | 22.9% | Kickapoo Area School District / 2,603 |
| 13. | 22.9% | Williams Bay School District / 3,161 |
| 14. | 22.8% | Seneca School District / 1,881 |
| 15. | 22.4% | Salem School District / 8,288 |
| 16. | 22.1% | Southwestern Wisconsin School District / 4,043 |
| 17. | 21.9% | Riverdale School District / 4,954 |
| 18. | 21.8% | Big Foot Union High School District / 9,267 |
| 19. | 21.6% | Wauzeka-Steuben School District / 1,683 |
| 20. | 21.5% | Highland School District / 1,782 |
| 21. | 21.3% | Potosi School District / 2,391 |
| 22. | 21.0% | Sharon Joint No. 11 School District / 1,805 |
| 23. | 21.0% | Linn Joint No. 6 School District / 956 |
| 24. | 20.8% | Richland School District / 11,553 |
| 25. | 20.8% | Geneva Joint No. 4 School District / 1,080 |
| 26. | 20.8% | Boscobel Area School District / 5,664 |
| 27. | 20.7% | Rubicon Joint No. 6 School District / 1,095 |
| 28. | 20.7% | Beloit Turner School District / 8,683 |
| 29. | 20.4% | North Cape School District / 774 |
| 30. | 20.3% | Platteville School District / 14,339 |
| 31. | 19.9% | Shorewood School District / 13,144 |
| 32. | 19.9% | Ithaca School District / 1,825 |
| 33. | 19.8% | Montello School District / 6,175 |
| 34. | 19.7% | Pecatonica Area School District / 2,554 |
| 35. | 19.7% | North Crawford School District / 2,892 |
| 36. | 19.6% | River Valley School District / 9,380 |
| 37. | 19.6% | Wauwatosa School District / 46,179 |
| 38. | 19.5% | Portage Community School District / 17,337 |
| 39. | 19.5% | Black Hawk School District / 2,687 |
| 40. | 19.3% | Fennimore Community School District / 4,817 |
| 41. | 19.2% | Westosha Central High School District / 18,453 |
| 42. | 19.0% | Washington School District / 694 |
| 43. | 19.0% | Randall Joint No. 1 School District / 5,488 |
| 44. | 18.9% | Parkview School District / 5,889 |
| 45. | 18.8% | Mount Horeb Area School District / 12,017 |
| 46. | 18.8% | Iowa-Grant School District / 4,056 |
| 47. | 18.8% | Monona Grove School District / 16,930 |
| 48. | 18.7% | Mauston School District / 10,399 |
| 48. | 18.7% | White Lake School District / 1,400 |
| 50. | 18.7% | Arrowhead Union High School District / 33,537 |
| 51. | 18.7% | Silver Lake Joint No. 1 School District / 4,377 |
| 52. | 18.6% | Prairie du Chien Area School District / 8,592 |
| 53. | 18.6% | Bristol No. 1 School District / 4,480 |
| 54. | 18.4% | Wilmot Union High School District / 19,162 |
| 55. | 18.2% | Edgerton School District / 11,316 |
| 56. | 18.2% | Argyle School District / 1,939 |
| 57. | 18.1% | McFarland School District / 9,880 |
| 58. | 18.1% | Milton School District / 18,648 |
| 59. | 18.0% | Walworth Joint No. 1 School District / 3,915 |
| 60. | 18.0% | Janesville School District / 63,176 |
| 61. | 18.0% | Wheatland Joint No. 1 School District / 4,369 |
| 62. | 18.0% | Verona Area School District / 36,326 |
| 63. | 18.0% | Barneveld School District / 2,260 |
| 64. | 18.0% | Cuba City School District / 4,773 |
| 65. | 17.9% | Wonewoc-Union Center School District / 3,268 |
| 65. | 17.9% | Twin Lakes No. 4 School District / 3,242 |
| 67. | 17.9% | Lake Geneva-Genoa City Union High School District / 24,206 |
| 68. | 17.8% | Poynette School District / 6,309 |
| 69. | 17.8% | Hartland-Lakeside Joint No. 3 School District / 11,458 |
| 70. | 17.7% | Trevor-Wilmot Consolidated School District / 4,123 |
| 71. | 17.6% | Waunakee Community School District / 17,713 |
| 72. | 17.4% | Swallow School District / 3,248 |
| 73. | 17.3% | Oregon School District / 19,339 |
| 74. | 17.2% | Belmont Community School District / 2,131 |
| 75. | 17.2% | Laona School District / 1,460 |
| 75. | 17.2% | Alma Center School District / 3,144 |
| 77. | 17.1% | Dodgeville School District / 8,093 |
| 78. | 17.1% | Columbus School District / 7,688 |
| 79. | 17.0% | Reedsburg School District / 16,395 |
| 79. | 17.0% | Webster School District / 5,930 |
| 81. | 17.0% | Albany School District / 2,850 |
| 82. | 17.0% | Wisconsin Dells School District / 11,641 |
| 83. | 16.8% | Elcho School District / 3,366 |
| 83. | 16.8% | Weston School District / 2,202 |
| 85. | 16.8% | Middleton-Cross Plains School District / 36,520 |
| 86. | 16.8% | Prescott School District / 7,900 |
| 87. | 16.8% | Fox Point Joint No. 2 School District / 10,910 |
| 88. | 16.8% | Lake Country School District / 4,636 |
| 89. | 16.8% | Butternut School District / 1,242 |
| 89. | 16.8% | Siren School District / 2,828 |
| 91. | 16.8% | Mequon-Thiensville School District / 26,398 |
| 92. | 16.6% | Chippewa Falls Area School District / 32,544 |
| 93. | 16.6% | La Crosse School District / 62,715 |
| 94. | 16.5% | Name N/A / 211,008 |
| 95. | 16.5% | St. Croix Central School District / 7,544 |
| 96. | 16.5% | Evansville Community School District / 9,558 |
| 97. | 16.4% | Nicolet Union High School District / 25,349 |
| 98. | 16.4% | Campbellsport School District / 10,873 |
| 99. | 16.4% | Nekoosa School District / 9,383 |
| 100. | 16.3% | River Falls School District / 22,575 |
| 101. | 16.3% | Baraboo School District / 19,864 |
| 102. | 16.2% | Elmbrook School District / 44,865 |
| 103. | 16.2% | Greendale School District / 13,980 |
| 104. | 16.2% | Delavan-Darien School District / 17,275 |
| 105. | 16.2% | Glendale-River Hills School District / 12,628 |
| 106. | 16.2% | Elkhorn Area School District / 17,637 |
| 107. | 16.2% | La Farge School District / 1,967 |
| 108. | 16.1% | Crandon School District / 5,888 |
| 109. | 15.9% | Mukwonago School District / 28,227 |
| 109. | 15.9% | New Richmond School District / 16,547 |
| 111. | 15.8% | East Troy Community School District / 11,586 |
| 112. | 15.8% | New Lisbon School District / 5,234 |
| 113. | 15.8% | North Lakeland School District / 2,742 |
| 114. | 15.7% | Lake Geneva Joint No. 1 School District / 17,187 |
| 115. | 15.7% | Maple Dale-Indian Hill School District / 1,811 |
| 116. | 15.7% | Deerfield Community School District / 3,491 |
| 117. | 15.6% | Pardeeville Area School District / 6,848 |
| 118. | 15.6% | Fall Creek School District / 3,993 |
| 119. | 15.6% | Waukesha School District / 92,894 |
| 120. | 15.5% | Ellsworth Community School District / 11,129 |
| 121. | 15.5% | Rio Community School District / 3,029 |
| 122. | 15.5% | New Berlin School District / 34,833 |
| 123. | 15.4% | Wabeno Area School District / 3,935 |
| 124. | 15.4% | Waterford Joint No. 1 School District / 13,922 |
| 124. | 15.4% | Clinton Community School District / 5,720 |
| 124. | 15.4% | Sun Prairie Area School District / 39,969 |
| 127. | 15.4% | Whitewater School District / 19,847 |
| 128. | 15.3% | Westfield School District / 9,326 |
| 129. | 15.3% | De Soto Area School District / 4,152 |
| 130. | 15.3% | Hudson School District / 29,328 |
| 131. | 15.2% | Lodi School District / 9,515 |
| 132. | 15.2% | Madison Metropolitan School District / 222,505 |
| 133. | 15.2% | Oconomowoc Area School District / 32,215 |
| 134. | 15.2% | Beecher-Dunbar-Pembine School District / 3,145 |
| 135. | 15.1% | Muskego-Norway School District / 28,468 |
| 136. | 15.1% | Johnson Creek School District / 4,249 |
| 137. | 15.0% | Friess Lake School District / 2,447 |
| 138. | 15.0% | Lancaster Community School District / 6,123 |
| 139. | 15.0% | Pewaukee School District / 16,268 |
| 140. | 15.0% | West De Pere School District / 19,425 |
| 141. | 15.0% | Burlington Area School District / 22,910 |
| 142. | 14.9% | Necedah Area School District / 4,642 |
| 143. | 14.9% | Stoughton Area School District / 20,975 |
| 144. | 14.9% | Spring Valley School District / 4,204 |
| 145. | 14.8% | Palmyra-Eagle Area School District / 7,126 |
| 146. | 14.8% | Holmen School District / 18,459 |
| 146. | 14.8% | Hamilton School District / 25,545 |
| 148. | 14.8% | Hartford Union High School District / 31,194 |
| 148. | 14.8% | Hartford Joint No. 1 School District / 17,076 |
| 148. | 14.8% | Fond du Lac School District / 52,114 |
| 151. | 14.8% | South Shore School District / 1,767 |
| 152. | 14.7% | Waterford Union High School District / 18,533 |
| 153. | 14.6% | West Salem School District / 9,675 |
| 153. | 14.6% | Paris Joint No. 1 School District / 1,838 |
| 155. | 14.6% | Tomah Area School District / 19,552 |
| 155. | 14.6% | Appleton Area School District / 94,043 |
| 157. | 14.6% | Iola-Scandinavia School District / 4,784 |
| 158. | 14.5% | Germantown School District / 25,327 |
| 159. | 14.5% | Superior School District / 33,535 |
| 160. | 14.4% | Kettle Moraine School District / 24,690 |
| 161. | 14.4% | West Allis School District / 68,122 |
| 162. | 14.4% | Elmwood School District / 2,094 |
| 163. | 14.3% | Neosho Joint No. 3 School District / 1,910 |
| 164. | 14.3% | Menomonee Falls School District / 28,279 |
| 165. | 14.3% | River Ridge School District / 3,697 |
| 166. | 14.2% | North Lake School District / 2,674 |
| 167. | 14.2% | Belleville School District / 5,059 |
| 168. | 14.2% | Three Lakes School District / 4,720 |
| 169. | 14.1% | Antigo School District / 17,964 |
| 169. | 14.1% | Royall School District / 5,173 |
| 169. | 14.1% | Richmond School District / 2,658 |
| 172. | 14.1% | Beloit School District / 36,988 |
| 173. | 14.1% | Cedarburg School District / 19,856 |
| 174. | 14.1% | DeForest Area School District / 19,602 |
| 175. | 14.1% | Wisconsin Heights School District / 5,719 |
| 176. | 14.0% | Winter School District / 2,779 |
| 177. | 14.0% | Hustisford School District / 3,159 |
| 178. | 14.0% | Sparta Area School District / 16,928 |
| 179. | 14.0% | Lomira School District / 6,260 |
| 180. | 13.9% | Weyauwega-Fremont School District / 7,249 |
| 181. | 13.9% | New Glarus School District / 4,360 |
| 182. | 13.8% | Adams-Friendship Area School District / 14,801 |
| 183. | 13.8% | Wisconsin Rapids School District / 34,227 |
| 184. | 13.7% | South Milwaukee School District / 20,971 |
| 185. | 13.7% | Northland Pines School District / 11,119 |
| 186. | 13.6% | Cassville School District / 2,099 |
| 187. | 13.6% | Rhinelander School District / 20,486 |
| 187. | 13.6% | Kaukauna Area School District / 21,908 |
| 189. | 13.6% | Kenosha School District / 126,607 |
| 190. | 13.5% | Port Washington-Saukville School District / 17,054 |
| 190. | 13.5% | Sauk Prairie School District / 15,286 |
| 192. | 13.5% | Cornell School District / 2,742 |
| 193. | 13.5% | Clear Lake School District / 3,290 |
| 194. | 13.5% | Union Grove Joint No. 1 School District / 5,418 |
| 195. | 13.4% | Manawa School District / 4,903 |
| 196. | 13.4% | Galesville-Ettrick-Trempealeau School District / 8,313 |
| 197. | 13.4% | Somerset School District / 7,901 |
| 198. | 13.3% | Port Edwards School District / 4,036 |
| 199. | 13.3% | Glenwood City School District / 3,829 |
| 200. | 13.2% | Juda School District / 1,386 |
| 201. | 13.2% | North Fond du Lac School District / 7,732 |
| 202. | 13.2% | Viroqua Area School District / 8,906 |
| 202. | 13.2% | Cashton School District / 3,601 |
| 204. | 13.2% | Eau Claire Area School District / 80,230 |
| 205. | 13.2% | New London School District / 15,575 |
| 206. | 13.1% | Grafton School District / 13,377 |
| 207. | 13.1% | Wild Rose School District / 5,113 |
| 208. | 13.1% | Omro School District / 7,445 |
| 209. | 13.1% | Wautoma Area School District / 11,232 |
| 210. | 13.0% | Stevens Point Area School District / 56,140 |
| 211. | 13.0% | Hilbert School District / 2,890 |
| 212. | 13.0% | Minocqua Joint No. 1 School District / 6,888 |
| 213. | 13.0% | Dover No. 1 School District / 1,839 |
| 214. | 13.0% | Wausaukee School District / 4,439 |
| 215. | 12.9% | Wrightstown Community School District / 6,578 |
| 216. | 12.9% | Baldwin-Woodville Area School District / 8,308 |
| 217. | 12.9% | Osceola School District / 9,068 |
| 218. | 12.9% | Fall River School District / 2,876 |
| 219. | 12.9% | Florence School District / 4,587 |
| 220. | 12.9% | Goodman-Armstrong School District / 1,011 |
| 220. | 12.9% | Lake Holcombe School District / 2,459 |
| 222. | 12.8% | Whitnall School District / 17,286 |
| 222. | 12.8% | Flambeau School District / 3,661 |
| 224. | 12.8% | Random Lake School District / 6,253 |
| 225. | 12.8% | Lena School District / 2,569 |
| 226. | 12.8% | Spooner Area School District / 10,240 |
| 227. | 12.7% | Tomahawk School District / 10,005 |
| 227. | 12.7% | Menomonie Area School District / 26,646 |
| 229. | 12.7% | Yorkville Joint No. 2 School District / 2,642 |
| 230. | 12.7% | Fort Atkinson School District / 18,262 |
| 230. | 12.7% | Almond-Bancroft School District / 2,620 |
| 232. | 12.7% | Cudahy School District / 18,127 |
| 233. | 12.7% | Woodruff Joint No. 1 School District / 5,191 |
| 233. | 12.7% | Bloomer School District / 7,137 |
| 235. | 12.6% | Ashwaubenon School District / 16,570 |
| 235. | 12.6% | Amery School District / 9,888 |
| 237. | 12.6% | Brodhead School District / 6,479 |
| 238. | 12.5% | Reedsville School District / 4,662 |
| 239. | 12.5% | Northern Ozaukee School District / 5,679 |
| 240. | 12.5% | Birchwood School District / 1,873 |
| 241. | 12.5% | Rice Lake Area School District / 16,346 |
| 242. | 12.4% | Northwood School District / 3,237 |
| 243. | 12.4% | Neenah School District / 42,836 |
| 243. | 12.4% | Hillsboro School District / 4,544 |
| 245. | 12.4% | Washington-Caldwell School District / 1,795 |
| 246. | 12.3% | Norwalk-Ontario-Wilton School District / 2,978 |
| 247. | 12.3% | Phelps School District / 1,382 |
| 247. | 12.3% | Marshall School District / 5,944 |
| 249. | 12.3% | Little Chute Area School District / 8,233 |
| 250. | 12.3% | Kimberly Area School District / 25,126 |
| 251. | 12.2% | Mosinee School District / 12,002 |
| 252. | 12.2% | Clintonville School District / 10,157 |
| 252. | 12.2% | Waupaca School District / 15,844 |
| 254. | 12.2% | Sturgeon Bay School District / 8,698 |
| 255. | 12.1% | Lakeland Union High School District / 18,238 |
| 256. | 12.1% | Marinette School District / 15,486 |
| 256. | 12.1% | Gibraltar Area School District / 5,460 |
| 258. | 12.0% | Onalaska School District / 16,929 |
| 259. | 12.0% | Peshtigo School District / 6,331 |
| 259. | 12.0% | Cameron School District / 4,503 |
| 261. | 12.0% | Monroe School District / 15,877 |
| 262. | 12.0% | Boyceville Community School District / 4,675 |
| 262. | 12.0% | Cambridge School District / 5,760 |
| 264. | 11.9% | Rosendale-Brandon School District / 5,551 |
| 265. | 11.9% | Hayward Community School District / 13,613 |
| 265. | 11.9% | Kewaskum School District / 13,738 |
| 267. | 11.9% | West Bend School District / 50,925 |
| 268. | 11.9% | Lake Mills Area School District / 9,137 |
| 269. | 11.8% | Pepin Area School District / 2,139 |
| 270. | 11.8% | Kohler School District / 2,248 |
| 271. | 11.7% | Neillsville School District / 7,039 |
| 272. | 11.7% | Brighton No. 1 School District / 1,440 |
| 273. | 11.7% | Black River Falls School District / 12,027 |
| 274. | 11.7% | Monticello School District / 2,435 |
| 274. | 11.7% | Bruce School District / 3,834 |
| 276. | 11.6% | Watertown School District / 30,463 |
| 277. | 11.6% | Frederic School District / 3,881 |
| 278. | 11.6% | Luck School District / 3,641 |
| 279. | 11.6% | Oshkosh Area School District / 79,118 |
| 280. | 11.6% | Horicon School District / 5,713 |
| 281. | 11.5% | Cumberland School District / 5,960 |
| 281. | 11.5% | Ladysmith-Hawkins School District / 6,026 |
| 283. | 11.5% | Maple School District / 7,545 |
| 284. | 11.5% | Sheboygan Falls School District / 11,176 |
| 285. | 11.4% | Oak Creek-Franklin School District / 37,010 |
| 286. | 11.4% | Green Lake School District / 2,839 |
| 287. | 11.4% | Ashland School District / 12,362 |
| 288. | 11.4% | De Pere Unified School District / 19,564 |
| 289. | 11.3% | St. Francis School District / 9,167 |
| 289. | 11.3% | Franklin Public School District / 28,331 |
| 289. | 11.3% | Greenfield School District / 28,183 |
| 292. | 11.3% | Alma School District / 1,690 |
| 293. | 11.3% | Sevastopol School District / 4,817 |
| 294. | 11.3% | New Auburn School District / 1,747 |
| 295. | 11.2% | Oakfield School District / 3,301 |
| 296. | 11.2% | St. Croix Falls School District / 6,794 |
| 297. | 11.2% | Cedar Grove-Belgium Area School District / 5,783 |
| 298. | 11.2% | Plum City School District / 1,678 |
| 298. | 11.2% | Chetek School District / 6,875 |
| 300. | 11.1% | Stockbridge School District / 1,993 |
| 301. | 11.1% | Green Bay Area School District / 135,804 |
| 302. | 11.1% | Union Grove Union High School District / 13,069 |
| 303. | 11.0% | Beaver Dam School District / 22,545 |
| 304. | 11.0% | Pulaski Community School District / 19,549 |
| 304. | 11.0% | Howard-Suamico School District / 27,407 |
| 306. | 10.9% | Coleman School District / 4,904 |
| 307. | 10.9% | Drummond Area School District / 4,691 |
| 308. | 10.9% | Manitowoc School District / 40,014 |
| 309. | 10.9% | Randolph School District / 3,869 |
| 309. | 10.9% | Tri-County Area School District / 3,959 |
| 311. | 10.8% | Oconto Falls School District / 11,042 |
| 312. | 10.8% | Gilman School District / 3,081 |
| 312. | 10.8% | Plymouth School District / 17,054 |
| 314. | 10.7% | Berlin Area School District / 10,728 |
| 315. | 10.7% | Granton Area School District / 2,053 |
| 316. | 10.6% | Shiocton School District / 4,158 |
| 317. | 10.6% | Mercer School District / 1,782 |
| 318. | 10.6% | Durand School District / 7,399 |
| 319. | 10.5% | Barron Area School District / 9,413 |
| 319. | 10.5% | Suring School District / 3,811 |
| 321. | 10.5% | Osseo-Fairchild School District / 5,441 |
| 322. | 10.5% | Algoma School District / 5,276 |
| 323. | 10.4% | Mayville School District / 8,114 |
| 324. | 10.4% | Altoona School District / 8,822 |
| 325. | 10.4% | Niagara School District / 2,363 |
| 326. | 10.4% | Elk Mound Area School District / 4,354 |
| 326. | 10.4% | Shell Lake School District / 3,771 |
| 326. | 10.4% | Ripon Area School District / 10,589 |
| 329. | 10.4% | Dodgeland School District / 6,130 |
| 330. | 10.3% | Cambria-Friesland School District / 2,260 |
| 331. | 10.3% | Waupun School District / 19,499 |
| 332. | 10.3% | Winneconne Community School District / 8,825 |
| 333. | 10.3% | Washburn School District / 4,137 |
| 334. | 10.2% | Denmark School District / 8,330 |
| 335. | 10.1% | Menasha School District / 24,781 |
| 336. | 10.1% | Hurley School District / 3,948 |
| 336. | 10.1% | Richfield Joint No. 1 School District / 4,515 |
| 338. | 10.1% | Prentice School District / 3,002 |
| 339. | 10.0% | Markesan School District / 6,457 |
| 340. | 10.0% | Elkhart Lake-Glenbeulah School District / 3,775 |
| 341. | 10.0% | Bangor School District / 3,784 |
| 342. | 10.0% | Unity School District / 7,077 |
| 343. | 10.0% | Melrose-Mindoro School District / 4,044 |
| 344. | 9.9% | Two Rivers School District / 13,110 |
| 345. | 9.9% | Crivitz School District / 5,710 |
| 346. | 9.9% | Marion School District / 3,938 |
| 346. | 9.9% | Rib Lake School District / 2,618 |
| 348. | 9.9% | Norway Joint No. 7 School District / 2,042 |
| 349. | 9.8% | Turtle Lake School District / 3,458 |
| 350. | 9.8% | Racine School District / 139,222 |
| 351. | 9.8% | Marshfield School District / 27,627 |
| 352. | 9.7% | Brillion School District / 5,516 |
| 353. | 9.6% | Grantsburg School District / 4,916 |
| 354. | 9.6% | Pittsville School District / 3,930 |
| 355. | 9.6% | Valders Area School District / 6,918 |
| 355. | 9.6% | Stanley-Boyd Area School District / 7,357 |
| 357. | 9.6% | Merrill Area School District / 20,993 |
| 358. | 9.6% | Cadott Community School District / 4,863 |
| 359. | 9.6% | Arcadia School District / 5,619 |
| 360. | 9.5% | Herman No. 22 School District / 1,587 |
| 361. | 9.4% | Chequamegon School District / 6,936 |
| 362. | 9.4% | Gillett School District / 4,212 |
| 363. | 9.4% | Freedom Area School District / 8,598 |
| 364. | 9.3% | Waterloo School District / 5,544 |
| 365. | 9.2% | Eleva-Strum School District / 3,623 |
| 366. | 9.1% | Tigerton School District / 1,822 |
| 367. | 9.0% | Mishicot School District / 5,983 |
| 368. | 9.0% | Independence School District / 2,474 |
| 369. | 9.0% | Jefferson School District / 13,297 |
| 369. | 9.0% | Southern Door County School District / 8,290 |
| 371. | 9.0% | D.C. Everest Area School District / 32,767 |
| 372. | 8.9% | Princeton School District / 3,192 |
| 373. | 8.9% | Chilton School District / 7,054 |
| 374. | 8.9% | Prairie Farm School District / 1,617 |
| 375. | 8.9% | Solon Springs School District / 2,217 |
| 375. | 8.9% | Colfax School District / 4,626 |
| 377. | 8.8% | Hortonville School District / 18,209 |
| 378. | 8.8% | Phillips School District / 6,060 |
| 379. | 8.8% | Sheboygan Area School District / 61,243 |
| 379. | 8.8% | Wausau School District / 54,046 |
| 381. | 8.8% | Shawano School District / 17,505 |
| 382. | 8.8% | Wittenberg-Birnamwood School District / 7,763 |
| 383. | 8.7% | Mondovi School District / 5,904 |
| 384. | 8.7% | Medford Area School District / 14,466 |
| 385. | 8.6% | New Holstein School District / 8,839 |
| 386. | 8.5% | Stratford School District / 4,921 |
| 387. | 8.4% | Tomorrow River School District / 5,058 |
| 388. | 8.3% | Seymour Community School District / 13,414 |
| 389. | 8.2% | Slinger School District / 15,579 |
| 390. | 8.2% | Greenwood School District / 3,458 |
| 390. | 8.2% | Owen-Withee School District / 4,309 |
| 392. | 8.0% | Brown Deer School District / 11,867 |
| 393. | 8.0% | Auburndale School District / 4,487 |
| 394. | 7.9% | Bonduel School District / 6,720 |
| 395. | 7.8% | Colby School District / 7,006 |
| 396. | 7.7% | Oconto School District / 7,409 |
| 397. | 7.5% | Howards Grove School District / 5,764 |
| 398. | 7.4% | Thorp School District / 4,323 |
| 399. | 7.4% | Westby Area School District / 7,858 |
| 400. | 7.2% | Spencer School District / 4,143 |
| 401. | 7.1% | Cochrane-Fountain City School District / 4,471 |
| 402. | 7.0% | Mellen School District / 2,026 |
| 403. | 6.9% | Lac du Flambeau No. 1 School District / 3,417 |
| 404. | 6.8% | Augusta School District / 4,337 |
| 405. | 6.8% | Milwaukee School District / 589,660 |
| 406. | 6.7% | Blair-Taylor School District / 4,244 |
| 407. | 6.6% | Clayton School District / 1,869 |
| 408. | 6.4% | Kiel Area School District / 8,553 |
| 409. | 6.3% | Marathon City School District / 4,710 |
| 410. | 6.3% | Whitehall School District / 5,077 |
| 411. | 6.2% | Edgar School District / 3,590 |
| 411. | 6.2% | Kewaunee School District / 6,891 |
| 413. | 6.0% | Rosholt School District / 3,785 |
| 414. | 5.8% | Bayfield School District / 2,491 |
| 415. | 5.6% | Weyerhaeuser Area School District / 1,366 |
| 416. | 5.5% | Oostburg School District / 6,059 |
| 417. | 5.5% | Luxemburg-Casco School District / 11,024 |
| 418. | 5.5% | Abbotsford School District / 3,328 |
| 419. | 5.3% | Raymond No. 14 School District / 3,140 |
| 420. | 5.2% | Gresham School District / 1,801 |
| 421. | 5.0% | Bowler School District / 2,473 |
| 422. | 4.5% | Loyal School District / 4,110 |
| 423. | 3.9% | Athens School District / 4,075 |
| 424. | 2.8% | Gilmanton School District / 1,281 |
| 425. | 2.5% | Menominee Indian School District / 4,251 |
Please note that we only rank locations with 'Irish as First Ancestry Population Percentage' data. The rank above might not be a complete list. Locations without 'Irish as First Ancestry Population Percentage' 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.
