| Rank | Irish as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 47.1% | Ridley School District / 39,431 |
| 2. | 46.3% | Interboro School District / 23,717 |
| 3. | 43.6% | Springfield School District / 25,563 |
| 4. | 39.9% | Haverford Township School District / 48,348 |
| 5. | 35.8% | Dunmore School District / 13,977 |
| 6. | 35.2% | Penn-Delco School District / 27,024 |
| 7. | 35.1% | Chichester School District / 25,084 |
| 8. | 34.3% | Carbondale Area School District / 11,313 |
| 9. | 34.2% | Scranton School District / 72,459 |
| 10. | 34.1% | Southeast Delco School District / 30,190 |
| 11. | 33.7% | Rose Tree Media School District / 36,830 |
| 12. | 33.4% | Garnet Valley School District / 28,433 |
| 13. | 33.4% | Springfield Township School District / 18,990 |
| 14. | 33.1% | Marple Newtown School District / 35,321 |
| 15. | 32.5% | Centennial School District / 49,371 |
| 16. | 32.5% | Bristol Borough School District / 9,698 |
| 17. | 32.4% | Hatboro-Horsham School District / 31,985 |
| 18. | 31.8% | Upper Darby School District / 86,549 |
| 19. | 31.7% | Upper Moreland Township School District / 24,355 |
| 20. | 31.3% | Bristol Township School District / 53,999 |
| 21. | 30.9% | Jenkintown School District / 4,340 |
| 22. | 30.7% | Radnor Township School District / 31,049 |
| 23. | 30.2% | Neshaminy School District / 77,501 |
| 24. | 30.1% | Penn Cambria School District / 17,950 |
| 25. | 30.1% | South Side Area School District / 7,038 |
| 26. | 29.9% | Abington Heights School District / 23,464 |
| 27. | 29.8% | West Chester Area School District / 107,367 |
| 28. | 29.8% | Great Valley School District / 30,718 |
| 29. | 29.7% | Tredyffrin-Easttown School District / 39,482 |
| 30. | 29.7% | Phoenixville Area School District / 30,602 |
| 31. | 29.3% | North Hills School District / 37,544 |
| 32. | 29.2% | Pennsbury School District / 69,714 |
| 33. | 29.2% | Central Bucks School District / 111,592 |
| 34. | 29.1% | Keystone Oaks School District / 20,731 |
| 35. | 28.8% | Council Rock School District / 73,110 |
| 36. | 28.5% | Colonial School District / 42,024 |
| 37. | 28.4% | Spring-Ford Area School District / 43,547 |
| 37. | 28.4% | Brentwood Borough School District / 9,615 |
| 39. | 28.3% | Abington School District / 56,990 |
| 40. | 28.3% | Northgate School District / 12,919 |
| 41. | 28.2% | Carlynton School District / 14,674 |
| 42. | 28.2% | Perkiomen Valley School District / 35,779 |
| 43. | 28.0% | Bensalem Township School District / 58,472 |
| 44. | 28.0% | Karns City Area School District / 10,438 |
| 45. | 27.9% | Wallingford-Swarthmore School District / 21,180 |
| 46. | 27.8% | Shenandoah Valley School District / 8,195 |
| 47. | 27.7% | Western Wayne School District / 16,604 |
| 48. | 27.7% | Downingtown Area School District / 67,341 |
| 49. | 27.5% | Saint Clair Area School District / 6,638 |
| 50. | 27.2% | Montour School District / 27,299 |
| 51. | 27.2% | Wayne Highlands School District / 23,056 |
| 52. | 27.1% | Bethel Park School District / 32,192 |
| 53. | 27.0% | Avonworth School District / 9,439 |
| 54. | 26.9% | Mahanoy Area School District / 12,440 |
| 55. | 26.8% | North Pocono School District / 19,875 |
| 56. | 26.7% | Moniteau School District / 9,503 |
| 57. | 26.7% | Methacton School District / 34,430 |
| 58. | 26.7% | Delaware Valley School District / 30,831 |
| 59. | 26.7% | Baldwin-Whitehall School District / 34,069 |
| 59. | 26.7% | Lakeland School District / 12,366 |
| 59. | 26.7% | Jim Thorpe Area School District / 13,167 |
| 62. | 26.5% | Pittston Area School District / 27,656 |
| 63. | 26.5% | Mars Area School District / 16,541 |
| 64. | 26.2% | North Penn School District / 96,512 |
| 65. | 26.2% | Minersville Area School District / 9,063 |
| 66. | 26.0% | Montrose Area School District / 11,724 |
| 66. | 26.0% | Susquehanna Community School District / 5,195 |
| 68. | 26.0% | Juniata Valley School District / 5,495 |
| 69. | 26.0% | Sullivan County School District / 6,219 |
| 70. | 25.8% | Owen J. Roberts School District / 32,099 |
| 71. | 25.8% | North Schuylkill School District / 17,384 |
| 71. | 25.8% | Forest City Regional School District / 5,280 |
| 73. | 25.8% | Pennridge School District / 44,862 |
| 73. | 25.8% | Valley View School District / 17,729 |
| 75. | 25.7% | Mt. Lebanon School District / 30,803 |
| 75. | 25.7% | Slippery Rock Area School District / 20,745 |
| 77. | 25.7% | Burgettstown Area School District / 10,019 |
| 78. | 25.5% | Pottsville Area School District / 19,528 |
| 79. | 25.3% | Pine-Richland School District / 19,906 |
| 80. | 25.2% | Upper Saint Clair School District / 18,815 |
| 81. | 25.1% | Blairsville-Saltsburg School District / 12,805 |
| 82. | 25.1% | Lakeview School District / 8,427 |
| 83. | 25.1% | Lackawanna Trail School District / 8,561 |
| 84. | 25.0% | West Greene School District / 5,236 |
| 85. | 25.0% | Altoona Area School District / 59,728 |
| 86. | 25.0% | Upper Merion Area School District / 32,283 |
| 86. | 25.0% | Mount Union Area School District / 9,189 |
| 88. | 24.9% | Wilkes-Barre Area School District / 59,914 |
| 89. | 24.8% | Riverview School District / 9,145 |
| 90. | 24.7% | South Fayette Township School District / 13,062 |
| 91. | 24.6% | Hopewell Area School District / 18,400 |
| 92. | 24.6% | General McLane School District / 17,796 |
| 93. | 24.6% | West Jefferson Hills School District / 18,413 |
| 94. | 24.5% | Seneca Valley School District / 45,887 |
| 95. | 24.5% | Plum Borough School District / 26,263 |
| 96. | 24.5% | South Park School District / 13,993 |
| 97. | 24.5% | Indiana Area School District / 32,464 |
| 98. | 24.5% | Chartiers Valley School District / 28,274 |
| 99. | 24.4% | Mountain View School District / 8,221 |
| 100. | 24.4% | Avon Grove School District / 28,919 |
| 101. | 24.4% | Panther Valley School District / 13,080 |
| 102. | 24.3% | Allegheny-Clarion Valley School District / 5,675 |
| 102. | 24.3% | West Mifflin Area School District / 22,003 |
| 104. | 24.3% | Sayre Area School District / 7,938 |
| 105. | 24.3% | Smethport Area School District / 5,944 |
| 106. | 24.3% | Lake-Lehman School District / 16,293 |
| 107. | 24.3% | Otto-Eldred School District / 4,752 |
| 108. | 24.2% | Hampton Township School District / 17,205 |
| 109. | 24.2% | Trinity Area School District / 25,809 |
| 110. | 24.2% | Clarion Area School District / 9,216 |
| 111. | 24.1% | Hollidaysburg Area School District / 27,533 |
| 112. | 24.1% | West Allegheny School District / 19,461 |
| 113. | 24.1% | Name N/A / 5,696 |
| 114. | 24.0% | Riverside School District / 11,936 |
| 115. | 24.0% | North Allegheny School District / 47,037 |
| 116. | 23.9% | Cornell School District / 6,740 |
| 117. | 23.9% | Hanover Area School District / 15,363 |
| 118. | 23.8% | Shaler Area School District / 39,158 |
| 119. | 23.8% | Jefferson-Morgan School District / 6,067 |
| 120. | 23.8% | Wallenpaupack Area School District / 24,729 |
| 121. | 23.7% | Fox Chapel Area School District / 29,082 |
| 122. | 23.7% | Ferndale Area School District / 5,249 |
| 123. | 23.7% | Mid Valley School District / 14,844 |
| 123. | 23.7% | Blue Ridge School District / 7,499 |
| 123. | 23.7% | South Butler County School District / 20,056 |
| 126. | 23.6% | Unionville-Chadds Ford School District / 23,543 |
| 126. | 23.6% | Oil City Area School District / 15,174 |
| 126. | 23.6% | Apollo-Ridge School District / 9,528 |
| 129. | 23.5% | Cambria Heights School District / 9,884 |
| 130. | 23.5% | Loyalsock Township School District / 10,706 |
| 131. | 23.5% | Beaver Area School District / 14,502 |
| 131. | 23.5% | Mercer Area School District / 10,564 |
| 133. | 23.4% | Morrisville Borough School District / 9,664 |
| 134. | 23.4% | Wyoming Valley West School District / 41,880 |
| 135. | 23.4% | Central Greene School District / 16,187 |
| 136. | 23.3% | Millcreek Township School District / 51,874 |
| 137. | 23.3% | Upper Dublin School District / 26,030 |
| 138. | 23.3% | Peters Township School District / 19,896 |
| 139. | 23.3% | East Allegheny School District / 15,339 |
| 139. | 23.3% | Girard School District / 11,106 |
| 139. | 23.3% | Elizabeth Forward School District / 17,993 |
| 142. | 23.2% | Palisades School District / 15,071 |
| 143. | 23.2% | Port Allegany School District / 5,946 |
| 143. | 23.2% | New Brighton Area School District / 11,370 |
| 145. | 23.1% | Quaker Valley School District / 12,341 |
| 146. | 23.1% | Avella Area School District / 4,137 |
| 146. | 23.1% | Souderton Area School District / 43,655 |
| 148. | 23.0% | Albert Gallatin Area School District / 23,966 |
| 149. | 22.9% | Blacklick Valley School District / 5,248 |
| 150. | 22.9% | Camp Hill School District / 7,396 |
| 151. | 22.8% | Twin Valley School District / 22,474 |
| 151. | 22.8% | Norwin School District / 34,151 |
| 153. | 22.8% | Central Cambria School District / 13,831 |
| 153. | 22.8% | Wyalusing Area School District / 8,173 |
| 155. | 22.8% | Oswayo Valley School District / 3,196 |
| 156. | 22.7% | United School District / 8,364 |
| 157. | 22.7% | Butler Area School District / 55,579 |
| 158. | 22.7% | Brownsville Area School District / 16,646 |
| 159. | 22.7% | Fairview School District / 10,158 |
| 160. | 22.7% | Reynolds School District / 10,167 |
| 161. | 22.6% | Name N/A / 12,224 |
| 162. | 22.6% | Bellwood-Antis School District / 8,684 |
| 162. | 22.6% | Canon-McMillan School District / 31,171 |
| 164. | 22.6% | Moon Area School District / 25,495 |
| 165. | 22.6% | Grove City Area School District / 16,589 |
| 166. | 22.5% | Athens Area School District / 14,381 |
| 167. | 22.5% | Fort Cherry School District / 9,668 |
| 168. | 22.5% | Bradford Area School District / 20,908 |
| 169. | 22.4% | Laurel School District / 8,266 |
| 170. | 22.4% | McGuffey School District / 13,339 |
| 171. | 22.4% | Ridgway Area School District / 7,043 |
| 172. | 22.4% | Sto-Rox School District / 12,240 |
| 173. | 22.3% | Deer Lakes School District / 14,659 |
| 174. | 22.3% | Pottsgrove School District / 20,993 |
| 175. | 22.2% | Greensburg Salem School District / 27,122 |
| 176. | 22.2% | Southern Fulton School District / 5,495 |
| 177. | 22.1% | Carmichaels Area School District / 6,927 |
| 178. | 22.1% | Iroquois School District / 7,098 |
| 179. | 22.1% | Tunkhannock Area School District / 19,039 |
| 180. | 22.0% | Ligonier Valley School District / 15,423 |
| 181. | 22.0% | Allegheny Valley School District / 9,880 |
| 182. | 22.0% | Towanda Area School District / 10,754 |
| 182. | 22.0% | Wissahickon School District / 36,365 |
| 184. | 22.0% | New Hope-Solebury School District / 10,759 |
| 185. | 21.9% | South Eastern School District / 20,084 |
| 185. | 21.9% | Rochester Area School District / 7,228 |
| 187. | 21.9% | Freedom Area School District / 11,459 |
| 188. | 21.9% | Old Forge School District / 8,520 |
| 189. | 21.8% | Titusville Area School District / 14,426 |
| 190. | 21.8% | Steel Valley School District / 17,000 |
| 191. | 21.7% | Westmont Hilltop School District / 12,963 |
| 192. | 21.7% | Penns Manor Area School District / 6,201 |
| 193. | 21.7% | Dallas School District / 20,142 |
| 194. | 21.7% | Sharon City School District / 14,999 |
| 195. | 21.7% | Bentworth School District / 8,467 |
| 196. | 21.6% | Canton Area School District / 6,066 |
| 197. | 21.6% | Wyoming Area School District / 19,854 |
| 198. | 21.6% | Upper Perkiomen School District / 21,968 |
| 199. | 21.5% | Penncrest School District / 25,315 |
| 200. | 21.5% | Northwestern School District / 11,794 |
| 201. | 21.5% | Daniel Boone Area School District / 20,363 |
| 202. | 21.5% | Williamsburg Community School District / 3,550 |
| 203. | 21.4% | Highlands School District / 20,125 |
| 204. | 21.4% | Marion Center Area School District / 10,865 |
| 205. | 21.4% | Yough School District / 16,970 |
| 206. | 21.3% | Octorara Area School District / 17,877 |
| 207. | 21.3% | Tamaqua Area School District / 15,941 |
| 208. | 21.3% | Tyrone Area School District / 12,803 |
| 209. | 21.2% | Crawford Central School District / 29,720 |
| 210. | 21.2% | Kiski Area School District / 28,346 |
| 211. | 21.2% | Western Beaver County School District / 5,451 |
| 212. | 21.2% | Gateway School District / 31,108 |
| 212. | 21.2% | Valley Grove School District / 6,554 |
| 214. | 21.2% | Saucon Valley School District / 16,888 |
| 215. | 21.2% | Glendale School District / 5,250 |
| 216. | 21.1% | Elk Lake School District / 7,400 |
| 217. | 21.1% | Norristown Area School District / 59,294 |
| 218. | 21.0% | Brockway Area School District / 7,013 |
| 219. | 21.0% | Blackhawk School District / 17,381 |
| 220. | 20.9% | Homer-Center School District / 6,531 |
| 221. | 20.9% | Derry Area School District / 17,359 |
| 222. | 20.9% | Connellsville Area School District / 36,480 |
| 223. | 20.8% | Coatesville Area School District / 58,571 |
| 224. | 20.8% | Boyertown Area School District / 44,900 |
| 224. | 20.8% | Shenango Area School District / 8,395 |
| 226. | 20.7% | Penn-Trafford School District / 25,576 |
| 226. | 20.7% | Ambridge Area School District / 23,776 |
| 228. | 20.7% | Southern Huntingdon County School District / 8,411 |
| 229. | 20.6% | Union City Area School District / 7,210 |
| 230. | 20.6% | Union School District / 4,332 |
| 231. | 20.6% | Bethlehem-Center School District / 8,450 |
| 232. | 20.6% | Cranberry Area School District / 9,366 |
| 232. | 20.6% | Crestwood School District / 19,494 |
| 234. | 20.5% | West Middlesex Area School District / 7,302 |
| 235. | 20.5% | Forest Area School District / 7,378 |
| 236. | 20.4% | Wilmington Area School District / 11,382 |
| 237. | 20.4% | Northwest Area School District / 9,164 |
| 238. | 20.4% | Burrell School District / 14,148 |
| 239. | 20.4% | Conneaut School District / 18,255 |
| 240. | 20.3% | South Allegheny School District / 12,046 |
| 241. | 20.3% | Clarion-Limestone Area School District / 7,447 |
| 241. | 20.3% | Laurel Highlands School District / 24,561 |
| 243. | 20.2% | Pleasant Valley School District / 34,426 |
| 244. | 20.2% | Uniontown Area School District / 25,762 |
| 245. | 20.1% | Washington School District / 16,486 |
| 246. | 20.1% | Fairfield Area School District / 8,040 |
| 247. | 20.0% | Jamestown Area School District / 4,292 |
| 247. | 20.0% | Union Area School District / 5,427 |
| 247. | 20.0% | Armstrong School District / 43,269 |
| 250. | 19.9% | Erie City School District / 103,664 |
| 251. | 19.9% | Big Beaver Falls Area School District / 13,911 |
| 252. | 19.9% | Mohawk Area School District / 10,443 |
| 253. | 19.8% | Richland School District / 14,471 |
| 254. | 19.8% | Southeastern Greene School District / 5,092 |
| 254. | 19.8% | Oxford Area School District / 25,000 |
| 256. | 19.8% | Woodland Hills School District / 48,871 |
| 257. | 19.7% | Claysburg-Kimmel School District / 5,708 |
| 258. | 19.7% | Forbes Road School District / 3,139 |
| 259. | 19.7% | Quakertown Community School District / 34,758 |
| 259. | 19.7% | Brookville Area School District / 11,668 |
| 261. | 19.6% | Sharpsville Area School District / 7,408 |
| 262. | 19.6% | Commodore Perry School District / 4,216 |
| 262. | 19.6% | East Stroudsburg Area School District / 45,591 |
| 264. | 19.6% | Franklin Area School District / 16,374 |
| 265. | 19.5% | Redbank Valley School District / 8,128 |
| 265. | 19.5% | Northern Cambria School District / 7,997 |
| 267. | 19.4% | Leechburg Area School District / 6,025 |
| 268. | 19.4% | Fort LeBoeuf School District / 13,536 |
| 269. | 19.4% | Purchase Line School District / 7,415 |
| 270. | 19.3% | Blue Mountain School District / 20,067 |
| 271. | 19.3% | Greater Latrobe School District / 30,481 |
| 271. | 19.3% | Susquenita School District / 14,583 |
| 273. | 19.3% | Freeport Area School District / 11,731 |
| 274. | 19.2% | Derry Township School District / 21,993 |
| 275. | 19.1% | Ringgold School District / 26,493 |
| 276. | 19.1% | Lower Moreland Township School District / 12,218 |
| 277. | 19.0% | Lower Merion School District / 61,676 |
| 278. | 19.0% | Pittsburgh School District / 316,773 |
| 279. | 18.9% | Keystone School District / 7,746 |
| 280. | 18.9% | Forest Hills School District / 12,798 |
| 280. | 18.9% | Fannett-Metal School District / 4,729 |
| 282. | 18.9% | Lewisburg Area School District / 18,168 |
| 282. | 18.9% | Keystone Central School District / 35,221 |
| 284. | 18.9% | Southern Lehigh School District / 21,004 |
| 285. | 18.8% | Tussey Mountain School District / 6,689 |
| 286. | 18.8% | Ellwood City Area School District / 14,072 |
| 287. | 18.7% | New Kensington-Arnold School District / 18,999 |
| 288. | 18.6% | Gettysburg Area School District / 28,371 |
| 288. | 18.6% | Franklin Regional School District / 22,018 |
| 290. | 18.6% | South Williamsport Area School District / 8,953 |
| 291. | 18.5% | Kennett Consolidated School District / 25,888 |
| 292. | 18.5% | New Castle Area School District / 25,401 |
| 292. | 18.5% | East Pennsboro Area School District / 19,739 |
| 292. | 18.5% | Huntingdon Area School District / 19,931 |
| 295. | 18.5% | Southern Tioga School District / 15,212 |
| 296. | 18.5% | Mechanicsburg Area School District / 27,957 |
| 297. | 18.4% | Cumberland Valley School District / 52,242 |
| 298. | 18.4% | Wattsburg Area School District / 10,215 |
| 299. | 18.3% | Northeast Bradford School District / 5,661 |
| 300. | 18.2% | East Penn School District / 52,860 |
| 301. | 18.2% | Carlisle Area School District / 36,480 |
| 302. | 18.1% | Stroudsburg Area School District / 33,646 |
| 302. | 18.1% | Newport School District / 7,820 |
| 304. | 18.1% | State College Area School District / 85,823 |
| 305. | 18.1% | Southern York County School District / 20,604 |
| 306. | 18.0% | Coudersport Area School District / 5,387 |
| 307. | 18.0% | Austin Area School District / 1,219 |
| 308. | 18.0% | Charleroi School District / 12,208 |
| 309. | 17.9% | Penn Hills School District / 44,401 |
| 310. | 17.9% | Easton Area School District / 61,224 |
| 311. | 17.8% | Bangor Area School District / 23,221 |
| 312. | 17.8% | Pottstown School District / 21,390 |
| 313. | 17.8% | Southmoreland School District / 14,839 |
| 314. | 17.8% | Hempfield Area School District / 50,136 |
| 315. | 17.8% | Hermitage School District / 16,259 |
| 316. | 17.7% | Cheltenham Township School District / 36,228 |
| 317. | 17.7% | Greenville Area School District / 11,046 |
| 318. | 17.6% | Frazier School District / 8,481 |
| 319. | 17.6% | Greater Johnstown School District / 28,689 |
| 320. | 17.6% | Johnsonburg Area School District / 4,963 |
| 321. | 17.5% | Curwensville Area School District / 7,247 |
| 322. | 17.5% | Bloomsburg Area School District / 18,627 |
| 322. | 17.5% | North East School District / 10,858 |
| 324. | 17.4% | Riverside Beaver County School District / 10,825 |
| 325. | 17.4% | Solanco School District / 30,664 |
| 326. | 17.4% | York Suburban School District / 21,342 |
| 327. | 17.3% | McKeesport Area School District / 33,952 |
| 328. | 17.3% | Corry Area School District / 14,384 |
| 329. | 17.3% | Lower Dauphin School District / 24,283 |
| 330. | 17.3% | Wyomissing Area School District / 12,542 |
| 331. | 17.3% | Rockwood Area School District / 5,850 |
| 332. | 17.2% | Troy Area School District / 11,009 |
| 333. | 17.2% | Pocono Mountain School District / 60,617 |
| 334. | 17.2% | Bellefonte Area School District / 24,167 |
| 335. | 17.2% | Conemaugh Valley School District / 6,601 |
| 336. | 17.1% | Spring Cove School District / 13,117 |
| 337. | 17.1% | Hempfield School District / 46,327 |
| 338. | 17.0% | Hazleton Area School District / 66,370 |
| 339. | 17.0% | Warren County School District / 38,164 |
| 340. | 17.0% | Williamsport Area School District / 42,762 |
| 341. | 16.9% | West Perry School District / 17,920 |
| 342. | 16.9% | Cameron County School District / 5,334 |
| 343. | 16.8% | Mount Carmel Area School District / 11,972 |
| 343. | 16.8% | Harmony Area School District / 2,452 |
| 345. | 16.8% | Littlestown Area School District / 14,641 |
| 346. | 16.8% | Wilson School District / 37,010 |
| 347. | 16.8% | Exeter Township School District / 26,761 |
| 347. | 16.8% | Parkland School District / 53,237 |
| 349. | 16.7% | Clearfield Area School District / 18,845 |
| 350. | 16.7% | Shamokin Area School District / 20,361 |
| 351. | 16.6% | Greenwood School District / 5,306 |
| 352. | 16.6% | Palmyra Area School District / 21,012 |
| 353. | 16.6% | Shippensburg Area School District / 27,053 |
| 354. | 16.5% | Penn Manor School District / 39,680 |
| 354. | 16.5% | Portage Area School District / 6,510 |
| 356. | 16.5% | Northern Potter School District / 4,001 |
| 356. | 16.5% | Harbor Creek School District / 16,823 |
| 358. | 16.5% | Middletown Area School District / 18,497 |
| 359. | 16.5% | Big Spring School District / 20,056 |
| 360. | 16.5% | South Middleton School District / 14,227 |
| 361. | 16.5% | Wilson Area School District / 15,237 |
| 361. | 16.5% | Neshannock Township School District / 9,264 |
| 363. | 16.4% | Punxsutawney Area School District / 20,895 |
| 364. | 16.3% | Clairton City School District / 7,884 |
| 365. | 16.3% | Waynesboro Area School District / 30,500 |
| 365. | 16.3% | Mifflin County School District / 42,863 |
| 367. | 16.3% | Northern York County School District / 20,729 |
| 367. | 16.3% | Turkeyfoot Valley Area School District / 2,759 |
| 369. | 16.2% | Bedford Area School District / 16,414 |
| 370. | 16.2% | Upper Adams School District / 11,168 |
| 371. | 16.1% | Somerset Area School District / 20,997 |
| 372. | 16.1% | Pine Grove Area School District / 11,208 |
| 372. | 16.1% | Salisbury Township School District / 13,940 |
| 374. | 16.1% | West Shore School District / 60,838 |
| 375. | 16.1% | Moshannon Valley School District / 9,252 |
| 376. | 16.1% | South Western School District / 26,362 |
| 377. | 16.0% | Schuylkill Valley School District / 15,576 |
| 378. | 16.0% | Philipsburg-Osceola Area School District / 15,151 |
| 379. | 16.0% | Meyersdale Area School District / 7,117 |
| 379. | 16.0% | Mount Pleasant Area School District / 18,365 |
| 381. | 15.9% | Bethlehem Area School District / 114,321 |
| 382. | 15.8% | Fleetwood Area School District / 16,325 |
| 382. | 15.8% | Central Dauphin School District / 86,525 |
| 384. | 15.8% | Governor Mifflin School District / 30,368 |
| 385. | 15.8% | Greater Nanticoke Area School District / 18,016 |
| 386. | 15.8% | Weatherly Area School District / 5,419 |
| 387. | 15.7% | Kane Area School District / 7,489 |
| 388. | 15.7% | Donegal School District / 19,394 |
| 389. | 15.6% | Montoursville Area School District / 13,342 |
| 389. | 15.6% | Benton Area School District / 5,248 |
| 391. | 15.6% | Millville Area School District / 5,239 |
| 392. | 15.5% | Jeannette City School District / 9,893 |
| 393. | 15.5% | Antietam School District / 7,491 |
| 394. | 15.5% | Nazareth Area School District / 27,383 |
| 395. | 15.3% | Muncy School District / 7,428 |
| 395. | 15.3% | Montgomery Area School District / 7,493 |
| 397. | 15.3% | Penns Valley Area School District / 11,434 |
| 397. | 15.3% | DuBois Area School District / 31,793 |
| 399. | 15.3% | Chartiers-Houston School District / 8,637 |
| 400. | 15.2% | St. Marys Area School District / 19,393 |
| 401. | 15.2% | Dover Area School District / 25,226 |
| 402. | 15.2% | Central Fulton School District / 6,174 |
| 403. | 15.2% | Northern Tioga School District / 14,721 |
| 404. | 15.2% | Bald Eagle Area School District / 12,847 |
| 404. | 15.2% | Berwick Area School District / 21,630 |
| 406. | 15.1% | Eastern York School District / 19,814 |
| 406. | 15.1% | Schuylkill Haven Area School District / 8,398 |
| 408. | 15.1% | Manheim Township School District / 35,568 |
| 409. | 15.1% | Red Lion Area School District / 36,768 |
| 410. | 15.0% | Kutztown Area School District / 19,304 |
| 411. | 15.0% | Philadelphia City School District / 1,531,112 |
| 412. | 14.9% | Lehighton Area School District / 18,226 |
| 412. | 14.9% | Oley Valley School District / 13,261 |
| 414. | 14.9% | Chambersburg Area School District / 60,795 |
| 414. | 14.9% | Chestnut Ridge School District / 10,890 |
| 416. | 14.7% | Danville Area School District / 18,271 |
| 417. | 14.7% | Bermudian Springs School District / 13,515 |
| 418. | 14.6% | California Area School District / 11,016 |
| 418. | 14.6% | Juniata County School District / 22,596 |
| 420. | 14.6% | Central Columbia School District / 15,171 |
| 421. | 14.5% | Belle Vernon Area School District / 19,562 |
| 422. | 14.5% | East Lycoming School District / 10,126 |
| 423. | 14.5% | William Penn School District / 40,997 |
| 424. | 14.4% | Northeastern York School District / 21,775 |
| 425. | 14.4% | Everett Area School District / 9,996 |
| 425. | 14.4% | Pen Argyl Area School District / 12,626 |
| 427. | 14.3% | Central York School District / 33,349 |
| 428. | 14.3% | Dallastown Area School District / 39,360 |
| 429. | 14.2% | West York Area School District / 22,425 |
| 430. | 14.2% | Susquehanna Township School District / 22,934 |
| 431. | 14.1% | Galeton Area School District / 3,045 |
| 432. | 14.1% | North Clarion County School District / 4,552 |
| 433. | 14.0% | Tuscarora School District / 18,909 |
| 434. | 13.9% | Annville-Cleona School District / 12,628 |
| 435. | 13.9% | Wellsboro Area School District / 11,207 |
| 436. | 13.8% | Conrad Weiser Area School District / 19,153 |
| 437. | 13.8% | Northern Lebanon School District / 17,699 |
| 438. | 13.8% | Southern Columbia Area School District / 9,956 |
| 439. | 13.8% | Elizabethtown Area School District / 30,004 |
| 440. | 13.8% | Jersey Shore Area School District / 18,173 |
| 441. | 13.5% | Northampton Area School District / 42,341 |
| 442. | 13.5% | Warwick School District / 30,094 |
| 443. | 13.4% | Lebanon School District / 24,910 |
| 444. | 13.2% | Lampeter-Strasburg School District / 22,718 |
| 445. | 13.2% | Greencastle-Antrim School District / 18,048 |
| 446. | 13.2% | Williams Valley School District / 7,094 |
| 446. | 13.2% | Northern Bedford County School District / 6,653 |
| 448. | 13.2% | Windber Area School District / 8,764 |
| 449. | 13.1% | Conewago Valley School District / 25,276 |
| 450. | 13.0% | Shikellamy School District / 22,182 |
| 451. | 12.8% | Muhlenberg School District / 21,982 |
| 451. | 12.8% | Hamburg Area School District / 18,358 |
| 453. | 12.8% | Cornwall-Lebanon School District / 31,474 |
| 454. | 12.7% | Duquesne City School District / 6,752 |
| 455. | 12.7% | Hanover Public School District / 14,995 |
| 456. | 12.6% | Warrior Run School District / 16,930 |
| 457. | 12.5% | Columbia Borough School District / 10,076 |
| 458. | 12.4% | Northwestern Lehigh School District / 14,896 |
| 459. | 12.3% | Catasauqua Area School District / 11,315 |
| 460. | 12.3% | Conestoga Valley School District / 30,966 |
| 461. | 12.2% | Midland Borough School District / 2,870 |
| 462. | 12.1% | Bryn Athyn School District / 1,063 |
| 463. | 12.0% | Aliquippa School District / 10,721 |
| 464. | 11.9% | Ephrata Area School District / 32,385 |
| 465. | 11.9% | Berlin Brothersvalley School District / 5,809 |
| 466. | 11.8% | Conemaugh Township Area School District / 8,213 |
| 467. | 11.7% | Selinsgrove Area School District / 21,530 |
| 468. | 11.6% | North Star School District / 8,840 |
| 469. | 11.4% | Shade-Central City School District / 4,124 |
| 470. | 11.4% | Palmerton Area School District / 13,598 |
| 471. | 11.1% | Spring Grove Area School District / 26,964 |
| 472. | 11.1% | Farrell Area School District / 6,418 |
| 473. | 10.8% | Whitehall-Coplay School District / 29,983 |
| 474. | 10.8% | Milton Area School District / 16,045 |
| 475. | 10.8% | Lancaster School District / 69,269 |
| 476. | 10.7% | Eastern Lebanon County School District / 20,159 |
| 477. | 10.7% | Northern Lehigh School District / 13,535 |
| 478. | 10.6% | Halifax Area School District / 7,308 |
| 479. | 10.5% | Monessen City School District / 8,095 |
| 480. | 10.5% | Tri-Valley School District / 6,338 |
| 481. | 10.4% | Manheim Central School District / 22,868 |
| 482. | 10.2% | Cocalico School District / 22,401 |
| 483. | 9.7% | Brandywine Heights Area School District / 13,066 |
| 484. | 9.6% | West Branch Area School District / 8,131 |
| 485. | 9.5% | Eastern Lancaster County School District / 31,101 |
| 486. | 9.4% | Tulpehocken Area School District / 12,959 |
| 487. | 9.3% | Millersburg Area School District / 6,554 |
| 488. | 9.2% | Midd-West School District / 16,731 |
| 489. | 9.1% | Steelton-Highspire School District / 8,259 |
| 490. | 9.0% | Mifflinburg Area School District / 15,810 |
| 491. | 9.0% | York City School District / 40,301 |
| 492. | 8.5% | Allentown City School District / 107,225 |
| 493. | 8.5% | Pequea Valley School District / 20,462 |
| 494. | 8.0% | Upper Dauphin Area School District / 8,649 |
| 495. | 7.8% | Salisbury-Elk Lick School District / 2,956 |
| 496. | 7.4% | Harrisburg City School District / 47,368 |
| 497. | 6.5% | Line Mountain School District / 8,881 |
| 498. | 6.3% | Wilkinsburg Borough School District / 17,266 |
| 499. | 6.2% | Reading School District / 80,845 |
| 500. | 6.0% | Chester-Upland School District / 44,199 |
| 501. | 5.5% | Shanksville-Stonycreek School District / 3,046 |
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.
