| Rank | Welsh as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 13.4% | Remsen Central School District / 3,341 |
| 2. | 12.1% | Brookfield Central School District / 1,364 |
| 3. | 10.5% | Mount Markham Central School District / 7,201 |
| 4. | 9.0% | Holland Patent Central School District / 8,949 |
| 5. | 6.9% | Waterville Central School District / 5,985 |
| 6. | 6.5% | Edmeston Central School District / 2,867 |
| 7. | 6.4% | Poland Central School District / 4,307 |
| 8. | 5.6% | Sauquoit Valley Central School District / 7,035 |
| 9. | 5.5% | Oysterponds Union Free School District / 1,679 |
| 10. | 5.4% | Whitehall Central School District / 5,001 |
| 11. | 5.2% | Adirondack Central School District / 8,466 |
| 12. | 5.2% | Granville Central School District / 7,461 |
| 13. | 5.1% | Madison Central School District / 3,125 |
| 14. | 5.1% | Richfield Springs Central School District / 4,284 |
| 15. | 5.0% | Oriskany Central School District / 4,743 |
| 16. | 4.7% | Little Falls City School District / 7,544 |
| 17. | 4.7% | West Canada Valley Central School District / 4,758 |
| 18. | 4.5% | Clinton Central School District / 12,204 |
| 19. | 4.4% | Pulaski Central School District / 6,051 |
| 20. | 4.2% | Ilion Central School District / 9,773 |
| 21. | 4.2% | Maine-Endwell Central School District / 15,080 |
| 22. | 4.1% | Parishville-Hopkinton Central School District / 2,667 |
| 23. | 4.1% | Cooperstown Central School District / 6,387 |
| 24. | 3.9% | Susquehanna Valley Central School District / 10,806 |
| 24. | 3.9% | Unadilla Valley Central School District / 5,968 |
| 26. | 3.8% | Oxford Academy and Central School District / 5,253 |
| 27. | 3.8% | Sherburne-Earlville Central School District / 8,373 |
| 28. | 3.8% | Cherry Valley-Springfield Central School District / 4,019 |
| 29. | 3.8% | Chenango Valley Central School District / 12,349 |
| 30. | 3.7% | Mohawk Central School District / 5,447 |
| 31. | 3.6% | Schodack Central School District / 6,461 |
| 31. | 3.6% | Greene Central School District / 7,235 |
| 33. | 3.4% | Frankfort-Schuyler Central School District / 6,961 |
| 34. | 3.4% | Lake Pleasant Central School District / 603 |
| 35. | 3.3% | Windsor Central School District / 11,144 |
| 36. | 3.1% | Lake George Central School District / 6,808 |
| 37. | 3.1% | New York Mills Union Free School District / 5,321 |
| 38. | 3.1% | Stockbridge Valley Central School District / 3,248 |
| 39. | 3.1% | Brushton-Moira Central School District / 5,017 |
| 40. | 3.0% | Norwich City School District / 13,659 |
| 41. | 3.0% | Roscoe Central School District / 2,048 |
| 42. | 2.9% | Hartford Central School District / 3,011 |
| 43. | 2.8% | Chenango Forks Central School District / 9,335 |
| 44. | 2.8% | Oneida City School District / 16,293 |
| 44. | 2.8% | Lake Placid Central School District / 6,133 |
| 44. | 2.8% | Queensbury Union Free School District / 22,258 |
| 47. | 2.8% | Whitesboro Central School District / 26,372 |
| 48. | 2.8% | Gilbertsville-Mount Upton Central School District / 3,291 |
| 49. | 2.7% | Letchworth Central School District / 6,302 |
| 50. | 2.7% | Belleville Henderson Central School District / 3,840 |
| 50. | 2.7% | Johnsburg Central School District / 2,191 |
| 52. | 2.6% | Avoca Central School District / 3,342 |
| 52. | 2.6% | Fabius-Pompey Central School District / 4,810 |
| 54. | 2.6% | Bainbridge-Guilford Central School District / 5,404 |
| 54. | 2.6% | Fillmore Central School District / 5,087 |
| 56. | 2.6% | Sherrill City School District / 11,692 |
| 57. | 2.5% | Camden Central School District / 13,347 |
| 58. | 2.5% | Westmoreland Central School District / 6,545 |
| 59. | 2.5% | Owego-Apalachin Central School District / 15,029 |
| 60. | 2.5% | New Hartford Central School District / 16,474 |
| 61. | 2.5% | Milford Central School District / 3,049 |
| 62. | 2.4% | Webb Town Union Free School District / 2,337 |
| 62. | 2.4% | Marcus Whitman Central School District / 10,202 |
| 62. | 2.4% | Deposit Central School District / 4,099 |
| 65. | 2.4% | Rome City School District / 38,947 |
| 66. | 2.4% | Altmar-Parish-Williamstown Central School District / 7,653 |
| 66. | 2.4% | Franklinville Central School District / 4,413 |
| 68. | 2.4% | Horseheads Central School District / 26,894 |
| 68. | 2.4% | Raquette Lake Union Free School District / 87 |
| 70. | 2.3% | Yorkshire-Pioneer Central School District / 16,174 |
| 71. | 2.3% | Phoenix Central School District / 11,483 |
| 72. | 2.3% | Groton Central School District / 6,013 |
| 73. | 2.3% | Scio Central School District / 2,362 |
| 73. | 2.3% | Waverly Central School District / 9,947 |
| 75. | 2.3% | Sagaponack Common School District / 212 |
| 76. | 2.3% | Central Square Central School District / 25,020 |
| 76. | 2.3% | Hammondsport Central School District / 4,166 |
| 76. | 2.3% | Palmyra-Macedon Central School District / 12,180 |
| 79. | 2.3% | Schroon Lake Central School District / 1,894 |
| 80. | 2.2% | Harpursville Central School District / 5,471 |
| 81. | 2.2% | Glens Falls City School District / 15,004 |
| 81. | 2.2% | Whitney Point Central School District / 9,162 |
| 83. | 2.2% | Charlotte Valley Central School District / 2,666 |
| 83. | 2.2% | Sidney Central School District / 7,666 |
| 85. | 2.1% | Cazenovia Central School District / 10,861 |
| 86. | 2.1% | Canastota Central School District / 9,751 |
| 87. | 2.1% | Gilboa-Conesville Central School District / 2,655 |
| 87. | 2.1% | Tully Central School District / 6,192 |
| 89. | 2.1% | McGraw Central School District / 3,375 |
| 90. | 2.1% | Bridgehampton Union Free School District / 1,038 |
| 91. | 2.0% | Cobleskill-Richmondville Central School District / 14,003 |
| 92. | 2.0% | Shelter Island Union Free School District / 2,624 |
| 92. | 2.0% | Tupper Lake Central School District / 6,277 |
| 94. | 2.0% | Williamson Central School District / 6,571 |
| 94. | 2.0% | Indian River Central School District / 21,658 |
| 94. | 2.0% | Odessa-Montour Central School District / 5,482 |
| 97. | 2.0% | Campbell-Savona Central School District / 5,341 |
| 98. | 2.0% | Union-Endicott Central School District / 31,416 |
| 99. | 2.0% | Belfast Central School District / 2,266 |
| 100. | 2.0% | DeRuyter Central School District / 2,936 |
| 101. | 2.0% | Vestal Central School District / 31,779 |
| 102. | 1.9% | Binghamton Common School District / 424 |
| 103. | 1.9% | Naples Central School District / 5,210 |
| 103. | 1.9% | Johnson City Central School District / 20,092 |
| 105. | 1.9% | South Lewis Central School District / 7,231 |
| 105. | 1.9% | Andes Central School District / 940 |
| 105. | 1.9% | Canaseraga Central School District / 1,683 |
| 108. | 1.9% | Corinth Central School District / 7,350 |
| 109. | 1.9% | Hamilton Central School District / 7,189 |
| 109. | 1.9% | North Collins Central School District / 4,124 |
| 111. | 1.9% | Penn Yan Central School District / 15,442 |
| 112. | 1.8% | Arkport Central School District / 3,004 |
| 113. | 1.8% | Homer Central School District / 12,882 |
| 114. | 1.8% | Margaretville Central School District / 3,772 |
| 115. | 1.8% | Southold Union Free School District / 6,478 |
| 116. | 1.8% | Hoosic Valley Central School District / 6,616 |
| 117. | 1.8% | Frewsburg Central School District / 5,071 |
| 117. | 1.8% | Bolton Central School District / 2,132 |
| 119. | 1.8% | Warrensburg Central School District / 5,576 |
| 119. | 1.8% | Elmira City School District / 48,834 |
| 121. | 1.8% | Copenhagen Central School District / 2,735 |
| 122. | 1.7% | East Aurora Union Free School District / 13,040 |
| 123. | 1.7% | Pavilion Central School District / 4,695 |
| 124. | 1.7% | Schuylerville Central School District / 9,807 |
| 124. | 1.7% | Baldwinsville Central School District / 35,277 |
| 126. | 1.7% | Fayetteville-Manlius Central School District / 25,085 |
| 127. | 1.7% | Springville-Griffith Institute Central School District / 13,198 |
| 127. | 1.7% | Chittenango Central School District / 13,777 |
| 127. | 1.7% | Nyack Union Free School District / 24,291 |
| 130. | 1.7% | Colton-Pierrepont Central School District / 2,490 |
| 130. | 1.7% | Long Lake Central School District / 618 |
| 130. | 1.7% | Warsaw Central School District / 6,269 |
| 133. | 1.7% | Onondaga Central School District / 6,343 |
| 133. | 1.7% | Wheelerville Union Free School District / 1,397 |
| 133. | 1.7% | Eldred Central School District / 5,058 |
| 133. | 1.7% | Morrisville-Eaton Central School District / 6,173 |
| 137. | 1.7% | Holland Central School District / 6,699 |
| 137. | 1.7% | Hancock Central School District / 2,621 |
| 139. | 1.7% | Wells Central School District / 941 |
| 140. | 1.7% | Clifton-Fine Central School District / 2,327 |
| 140. | 1.7% | Georgetown-South Otselic Central School District / 2,508 |
| 140. | 1.7% | Gouverneur Central School District / 11,393 |
| 140. | 1.7% | Sharon Springs Central School District / 2,188 |
| 144. | 1.6% | Ellicottville Central School District / 3,603 |
| 144. | 1.6% | Greenwich Central School District / 6,594 |
| 146. | 1.6% | Berne-Knox-Westerlo Central School District / 6,089 |
| 146. | 1.6% | Cato-Meridian Central School District / 6,475 |
| 146. | 1.6% | Inlet Common School District / 566 |
| 146. | 1.6% | Jefferson Central School District / 1,975 |
| 150. | 1.6% | Tioga Central School District / 5,515 |
| 150. | 1.6% | Bolivar-Richburg Central School District / 4,589 |
| 150. | 1.6% | Herkimer Central School District / 10,035 |
| 153. | 1.6% | Victor Central School District / 22,474 |
| 154. | 1.6% | Red Hook Central School District / 13,971 |
| 154. | 1.6% | Penfield Central School District / 31,537 |
| 154. | 1.6% | Lowville Academy and Central School District / 8,390 |
| 154. | 1.6% | Evans-Brant Central School District / 17,347 |
| 154. | 1.6% | Salamanca City School District / 7,856 |
| 159. | 1.6% | Skaneateles Central School District / 9,080 |
| 160. | 1.6% | Newark Valley Central School District / 7,889 |
| 160. | 1.6% | Dolgeville Central School District / 4,877 |
| 162. | 1.6% | Rensselaer City School District / 9,284 |
| 163. | 1.5% | Lansing Central School District / 7,369 |
| 164. | 1.5% | Galway Central School District / 6,931 |
| 164. | 1.5% | Gowanda Central School District / 11,994 |
| 164. | 1.5% | Spencerport Central School District / 24,897 |
| 167. | 1.5% | Warwick Valley Central School District / 23,717 |
| 167. | 1.5% | Green Island Union Free School District / 2,603 |
| 169. | 1.5% | Honeoye Central School District / 6,025 |
| 170. | 1.5% | West Valley Central School District / 2,133 |
| 170. | 1.5% | Binghamton City School District / 47,107 |
| 172. | 1.5% | Willsboro Central School District / 2,329 |
| 173. | 1.5% | Moravia Central School District / 7,298 |
| 173. | 1.5% | Kendall Central School District / 5,744 |
| 175. | 1.4% | Morristown Central School District / 3,187 |
| 175. | 1.4% | Morris Central School District / 2,333 |
| 175. | 1.4% | Lewiston-Porter Central School District / 18,783 |
| 178. | 1.4% | Holley Central School District / 7,619 |
| 178. | 1.4% | Elmira Heights Central School District / 6,999 |
| 180. | 1.4% | Jamesville-DeWitt Central School District / 18,294 |
| 180. | 1.4% | Sackets Harbor Central School District / 3,137 |
| 182. | 1.4% | Lyme Central School District / 2,475 |
| 183. | 1.4% | Westfield Central School District / 5,160 |
| 183. | 1.4% | Alexandria Central School District / 3,880 |
| 183. | 1.4% | Walton Central School District / 6,613 |
| 183. | 1.4% | Northville Central School District / 2,949 |
| 187. | 1.4% | New Paltz Central School District / 19,240 |
| 187. | 1.4% | Dansville Central School District / 10,120 |
| 189. | 1.4% | Southwestern Central School District / 9,403 |
| 190. | 1.4% | Potsdam Central School District / 15,000 |
| 190. | 1.4% | Canandaigua City School District / 25,878 |
| 190. | 1.4% | Corning City School District / 34,413 |
| 190. | 1.4% | Dundee Central School District / 6,335 |
| 194. | 1.3% | Liberty Central School District / 10,713 |
| 194. | 1.3% | Cuba-Rushford Central School District / 6,507 |
| 194. | 1.3% | Southern Cayuga Central School District / 6,664 |
| 197. | 1.3% | Spackenkill Union Free School District / 8,942 |
| 197. | 1.3% | East Syracuse-Minoa Central School District / 22,190 |
| 199. | 1.3% | Cairo-Durham Central School District / 9,772 |
| 199. | 1.3% | Utica City School District / 62,011 |
| 201. | 1.3% | Schoharie Central School District / 7,080 |
| 201. | 1.3% | Marcellus Central School District / 10,687 |
| 201. | 1.3% | Union Springs Central School District / 6,190 |
| 201. | 1.3% | South Glens Falls Central School District / 20,123 |
| 205. | 1.3% | North Syracuse Central School District / 59,799 |
| 205. | 1.3% | Newark Central School District / 14,999 |
| 205. | 1.3% | Averill Park Central School District / 18,842 |
| 208. | 1.3% | Bethlehem Central School District / 27,552 |
| 209. | 1.2% | Albion Central School District / 15,231 |
| 209. | 1.2% | Gates-Chili Central School District / 33,042 |
| 211. | 1.2% | Panama Central School District / 3,550 |
| 212. | 1.2% | Westhill Central School District / 12,178 |
| 213. | 1.2% | Marathon Central School District / 4,754 |
| 213. | 1.2% | Delhi Central School District / 7,826 |
| 213. | 1.2% | Wayland-Cohocton Central School District / 9,266 |
| 216. | 1.2% | Wellsville Central School District / 9,253 |
| 217. | 1.2% | Mayfield Central School District / 6,228 |
| 217. | 1.2% | Watkins Glen Central School District / 8,355 |
| 217. | 1.2% | Bloomfield Central School District / 6,369 |
| 217. | 1.2% | AuSable Valley Central School District / 9,568 |
| 221. | 1.2% | Chautauqua Lake Central School District / 5,778 |
| 221. | 1.2% | Cincinnatus Central School District / 3,420 |
| 221. | 1.2% | Liverpool Central School District / 49,885 |
| 224. | 1.2% | Ithaca City School District / 66,182 |
| 224. | 1.2% | Falconer Central School District / 7,735 |
| 224. | 1.2% | Stillwater Central School District / 7,273 |
| 227. | 1.2% | Andover Central School District / 2,081 |
| 228. | 1.1% | Clyde-Savannah Central School District / 5,127 |
| 228. | 1.1% | Addison Central School District / 7,451 |
| 228. | 1.1% | Brighton Central School District / 24,282 |
| 231. | 1.1% | Wheatland-Chili Central School District / 6,004 |
| 231. | 1.1% | Goshen Central School District / 18,372 |
| 231. | 1.1% | Hornell City School District / 10,675 |
| 234. | 1.1% | Eden Central School District / 10,372 |
| 235. | 1.1% | Rye Neck Union Free School District / 8,566 |
| 236. | 1.1% | Tonawanda City School District / 15,113 |
| 236. | 1.1% | Hilton Central School District / 26,216 |
| 236. | 1.1% | York Central School District / 5,341 |
| 236. | 1.1% | Jordan-Elbridge Central School District / 8,746 |
| 240. | 1.1% | Forestville Central School District / 3,466 |
| 241. | 1.1% | Fort Plain Central School District / 5,866 |
| 241. | 1.1% | Sullivan West Central School District / 10,814 |
| 241. | 1.1% | Worcester Central School District / 2,747 |
| 241. | 1.1% | Onteora Central School District / 15,534 |
| 241. | 1.1% | Sag Harbor Union Free School District / 6,906 |
| 246. | 1.1% | Hamburg Central School District / 24,951 |
| 246. | 1.1% | Minerva Central School District / 648 |
| 248. | 1.1% | Byron-Bergen Central School District / 7,476 |
| 249. | 1.1% | North Greenbush Common School District / 1,783 |
| 250. | 1.0% | Elizabethtown-Lewis Central School District / 2,694 |
| 250. | 1.0% | Voorheesville Central School District / 7,311 |
| 252. | 1.0% | Medina Central School District / 10,882 |
| 252. | 1.0% | Pine Valley Central School District / 4,654 |
| 254. | 1.0% | Northeast Central School District / 6,680 |
| 254. | 1.0% | Oswego City School District / 33,389 |
| 254. | 1.0% | Oppenheim-Ephratah Central School District / 2,693 |
| 254. | 1.0% | Weedsport Central School District / 5,655 |
| 254. | 1.0% | Sodus Central School District / 7,773 |
| 259. | 1.0% | Geneseo Central School District / 11,415 |
| 259. | 1.0% | East Greenbush Central School District / 29,954 |
| 259. | 1.0% | Taconic Hills Central School District / 12,048 |
| 259. | 1.0% | Salem Central School District / 3,844 |
| 263. | 1.0% | Cambridge Central School District / 6,665 |
| 263. | 1.0% | Pelham Union Free School District / 12,379 |
| 263. | 1.0% | Downsville Central School District / 2,655 |
| 263. | 1.0% | Scotia-Glenville Central School District / 18,189 |
| 263. | 1.0% | Genesee Valley Central School District at Angelica-Belmont / 4,234 |
| 268. | 1.0% | Middleburgh Central School District / 6,238 |
| 268. | 1.0% | Burnt Hills-Ballston Lake Central School District / 19,299 |
| 268. | 1.0% | Bemus Point Central School District / 4,952 |
| 271. | 1.0% | Otego-Unadilla Central School District / 7,051 |
| 271. | 1.0% | Beaver River Central School District / 5,432 |
| 271. | 1.0% | Minisink Valley Central School District / 22,985 |
| 274. | 1.0% | North Tonawanda City School District / 31,498 |
| 274. | 1.0% | Shoreham-Wading River Central School District / 12,420 |
| 274. | 1.0% | Friendship Central School District / 2,275 |
| 277. | 1.0% | Mount Morris Central School District / 5,910 |
| 277. | 1.0% | Cortland City School District / 24,502 |
| 279. | 0.9% | Jamestown City School District / 32,481 |
| 279. | 0.9% | Schalmont Central School District / 13,391 |
| 279. | 0.9% | Fairport Central School District / 39,842 |
| 279. | 0.9% | Bath Central School District / 11,444 |
| 279. | 0.9% | Newfield Central School District / 5,466 |
| 279. | 0.9% | Allegany-Limestone Central School District / 9,385 |
| 285. | 0.9% | West Genesee Central School District / 31,340 |
| 286. | 0.9% | Fort Ann Central School District / 6,029 |
| 286. | 0.9% | Saratoga Springs City School District / 49,576 |
| 286. | 0.9% | Pittsford Central School District / 34,229 |
| 286. | 0.9% | Putnam Central School District / 827 |
| 286. | 0.9% | Fredonia Central School District / 14,825 |
| 291. | 0.9% | Sherman Central School District / 2,937 |
| 291. | 0.9% | Sweet Home Central School District / 36,332 |
| 291. | 0.9% | South Orangetown Central School District / 21,259 |
| 291. | 0.9% | Franklin Central School District / 2,233 |
| 295. | 0.9% | Guilderland Central School District / 36,504 |
| 296. | 0.9% | Shenendehowa Central School District / 63,279 |
| 297. | 0.9% | Canisteo-Greenwood Central School District / 5,970 |
| 297. | 0.9% | Rondout Valley Central School District / 16,945 |
| 297. | 0.9% | Grand Island Central School District / 20,324 |
| 297. | 0.9% | Bradford Central School District / 2,285 |
| 301. | 0.9% | Remsenburg-Speonk Union Free School District / 1,521 |
| 301. | 0.9% | Perry Central School District / 5,951 |
| 301. | 0.9% | Chatham Central School District / 8,923 |
| 304. | 0.9% | Rye City School District / 14,770 |
| 304. | 0.9% | Clarence Central School District / 27,493 |
| 306. | 0.9% | New Lebanon Central School District / 4,220 |
| 306. | 0.9% | Hudson Falls Central School District / 15,258 |
| 306. | 0.9% | Watertown City School District / 31,306 |
| 309. | 0.8% | Dryden Central School District / 12,325 |
| 309. | 0.8% | Canajoharie Central School District / 6,236 |
| 309. | 0.8% | North Rose-Wolcott Central School District / 8,655 |
| 309. | 0.8% | Orchard Park Central School District / 32,547 |
| 309. | 0.8% | Harrisville Central School District / 2,478 |
| 314. | 0.8% | Alfred-Almond Central School District / 7,459 |
| 314. | 0.8% | Troy City School District / 39,769 |
| 314. | 0.8% | Brasher Falls Central School District / 5,513 |
| 317. | 0.8% | Hyde Park Central School District / 33,780 |
| 317. | 0.8% | Honeoye Falls-Lima Central School District / 13,667 |
| 317. | 0.8% | Laurens Central School District / 2,702 |
| 320. | 0.8% | Candor Central School District / 5,187 |
| 320. | 0.8% | Attica Central School District / 13,563 |
| 320. | 0.8% | Mexico Central School District / 12,857 |
| 320. | 0.8% | Akron Central School District / 9,800 |
| 324. | 0.8% | Hermon-DeKalb Central School District / 2,606 |
| 324. | 0.8% | Greenwood Lake Union Free School District / 6,121 |
| 324. | 0.8% | Peru Central School District / 12,873 |
| 327. | 0.8% | Rhinebeck Central School District / 9,951 |
| 328. | 0.8% | Ticonderoga Central School District / 5,715 |
| 328. | 0.8% | Niagara Falls City School District / 50,172 |
| 328. | 0.8% | Wilson Central School District / 8,681 |
| 328. | 0.8% | Portville Central School District / 4,839 |
| 332. | 0.8% | Germantown Central School District / 4,885 |
| 332. | 0.8% | North Colonie Central School District / 39,090 |
| 332. | 0.8% | Port Jervis City School District / 17,765 |
| 332. | 0.8% | Argyle Central School District / 4,188 |
| 332. | 0.8% | Wallkill Central School District / 20,804 |
| 337. | 0.8% | Livonia Central School District / 10,608 |
| 337. | 0.8% | Syracuse City School District / 144,869 |
| 337. | 0.8% | Starpoint Central School District / 17,486 |
| 340. | 0.8% | Auburn City School District / 33,512 |
| 340. | 0.8% | Greenville Central School District / 8,319 |
| 342. | 0.7% | Livingston Manor Central School District / 3,394 |
| 342. | 0.7% | Wyoming Central School District / 1,741 |
| 342. | 0.7% | Waterloo Central School District / 11,954 |
| 342. | 0.7% | North Warren Central School District / 4,759 |
| 342. | 0.7% | Kinderhook Central School District / 13,831 |
| 342. | 0.7% | Oneonta City School District / 20,286 |
| 342. | 0.7% | Cattaraugus-Little Valley Central School District / 6,661 |
| 349. | 0.7% | Berlin Central School District / 6,324 |
| 349. | 0.7% | Schenevus Central School District / 2,492 |
| 349. | 0.7% | Williamsville Central School District / 73,043 |
| 352. | 0.7% | Niagara-Wheatfield Central School District / 27,819 |
| 352. | 0.7% | Massena Central School District / 17,509 |
| 354. | 0.7% | Frontier Central School District / 35,955 |
| 354. | 0.7% | Webster Central School District / 55,375 |
| 354. | 0.7% | Port Jefferson Union Free School District / 8,007 |
| 357. | 0.7% | Malone Central School District / 20,200 |
| 358. | 0.7% | Highland Falls Central School District / 12,486 |
| 359. | 0.7% | Madrid-Waddington Central School District / 4,254 |
| 359. | 0.7% | Coxsackie-Athens Central School District / 13,049 |
| 361. | 0.7% | Chester Union Free School District / 6,365 |
| 361. | 0.7% | Hammond Central School District / 2,234 |
| 361. | 0.7% | Millbrook Central School District / 7,385 |
| 361. | 0.7% | Romulus Central School District / 5,605 |
| 361. | 0.7% | Owen D. Young Central School District / 1,645 |
| 361. | 0.7% | Lancaster Central School District / 40,344 |
| 361. | 0.7% | LaFargeville Central School District / 3,179 |
| 368. | 0.7% | LaFayette Central School District / 4,673 |
| 368. | 0.7% | Rush-Henrietta Central School District / 52,026 |
| 368. | 0.7% | East Islip Union Free School District / 24,458 |
| 368. | 0.7% | Cold Spring Harbor Central School District / 7,862 |
| 372. | 0.7% | Saranac Lake Central School District / 13,861 |
| 372. | 0.7% | General Brown Central School District / 8,915 |
| 372. | 0.7% | Mahopac Central School District / 26,571 |
| 372. | 0.7% | Gloversville City School District / 19,147 |
| 376. | 0.6% | Sayville Union Free School District / 17,607 |
| 376. | 0.6% | Hudson City School District / 15,952 |
| 376. | 0.6% | Northeastern Clinton Central School District / 9,115 |
| 379. | 0.6% | Sandy Creek Central School District / 5,537 |
| 379. | 0.6% | Depew Union Free School District / 15,573 |
| 379. | 0.6% | Carthage Central School District / 19,163 |
| 379. | 0.6% | Olean City School District / 15,756 |
| 383. | 0.6% | Ballston Spa Central School District / 26,960 |
| 383. | 0.6% | Valhalla Union Free School District / 9,639 |
| 383. | 0.6% | East Hampton Union Free School District / 9,173 |
| 383. | 0.6% | Hoosick Falls Central School District / 7,986 |
| 383. | 0.6% | Irvington Union Free School District / 9,235 |
| 388. | 0.6% | Washingtonville Central School District / 24,448 |
| 388. | 0.6% | North Salem Central School District / 7,130 |
| 388. | 0.6% | Watervliet City School District / 10,917 |
| 388. | 0.6% | Heuvelton Central School District / 3,954 |
| 388. | 0.6% | Bellmore Union Free School District / 12,965 |
| 388. | 0.6% | East Rochester Union Free School District / 8,986 |
| 394. | 0.6% | Lansingburgh Central School District / 17,906 |
| 394. | 0.6% | Rotterdam-Mohonasen Central School District / 20,829 |
| 394. | 0.6% | South Huntington Union Free School District / 39,100 |
| 394. | 0.6% | Beacon City School District / 27,928 |
| 394. | 0.6% | Dobbs Ferry Union Free School District / 9,271 |
| 394. | 0.6% | Niskayuna Central School District / 22,858 |
| 394. | 0.6% | Afton Central School District / 3,965 |
| 401. | 0.6% | Mattituck-Cutchogue Union Free School District / 9,593 |
| 401. | 0.6% | East Irondequoit Central School District / 27,336 |
| 403. | 0.6% | South Jefferson Central School District / 11,105 |
| 403. | 0.6% | South Colonie Central School District / 40,183 |
| 403. | 0.6% | Amsterdam City School District / 25,113 |
| 403. | 0.6% | Greenport Union Free School District / 4,485 |
| 407. | 0.6% | Haldane Central School District / 5,370 |
| 407. | 0.6% | South Country Central School District / 29,660 |
| 407. | 0.6% | Lockport City School District / 36,070 |
| 407. | 0.6% | South Seneca Central School District / 6,799 |
| 407. | 0.6% | Broadalbin-Perth Central School District / 11,735 |
| 407. | 0.6% | Cassadaga Valley Central School District / 7,685 |
| 413. | 0.6% | Wainscott Common School District / 625 |
| 413. | 0.6% | Pine Plains Central School District / 9,119 |
| 413. | 0.6% | Iroquois Central School District / 17,790 |
| 413. | 0.6% | Katonah-Lewisboro Union Free School District / 18,252 |
| 413. | 0.6% | Elba Central School District / 2,963 |
| 413. | 0.6% | Saugerties Central School District / 20,546 |
| 413. | 0.6% | Wayne Central School District / 15,124 |
| 420. | 0.6% | South Kortright Central School District / 2,768 |
| 421. | 0.5% | Keshequa Central School District / 5,202 |
| 421. | 0.5% | West Irondequoit Central School District / 24,225 |
| 423. | 0.5% | Canton Central School District / 12,096 |
| 423. | 0.5% | Schenectady City School District / 65,921 |
| 423. | 0.5% | Le Roy Central School District / 8,218 |
| 423. | 0.5% | Batavia City School District / 18,213 |
| 423. | 0.5% | Ossining Union Free School District / 34,370 |
| 423. | 0.5% | Cheektowaga-Maryvale Union Free School District / 19,039 |
| 423. | 0.5% | Seneca Falls Central School District / 9,794 |
| 430. | 0.5% | Moriah Central School District / 4,833 |
| 430. | 0.5% | Carle Place Union Free School District / 10,196 |
| 430. | 0.5% | Rochester City School District / 211,016 |
| 430. | 0.5% | Avon Central School District / 7,119 |
| 430. | 0.5% | Dunkirk City School District / 13,985 |
| 430. | 0.5% | Three Village Central School District / 46,428 |
| 436. | 0.5% | The Tarrytowns Union Free School District / 19,594 |
| 436. | 0.5% | Manhasset Union Free School District / 16,863 |
| 438. | 0.5% | West Babylon Union Free School District / 28,512 |
| 438. | 0.5% | Valley Central School District / 26,923 |
| 438. | 0.5% | Croton-Harmon Union Free School District / 9,528 |
| 438. | 0.5% | Spencer-Van Etten Central School District / 6,156 |
| 438. | 0.5% | Merrick Union Free School District / 17,140 |
| 443. | 0.5% | Stamford Central School District / 2,830 |
| 443. | 0.5% | Fulton City School District / 19,824 |
| 445. | 0.5% | East Quogue Union Free School District / 4,739 |
| 445. | 0.5% | Edwards-Knox Central School District / 3,000 |
| 445. | 0.5% | Amherst Central School District / 24,066 |
| 445. | 0.5% | Ravena-Coeymans-Selkirk Central School District / 13,951 |
| 445. | 0.5% | Whitesville Central School District / 1,107 |
| 445. | 0.5% | Plattsburgh City School District / 19,654 |
| 445. | 0.5% | Kenmore-Tonawanda Union Free School District / 67,289 |
| 452. | 0.5% | Arlington Central School District / 57,918 |
| 452. | 0.5% | Bayport-Blue Point Union Free School District / 14,087 |
| 452. | 0.5% | Albany City School District / 97,913 |
| 452. | 0.5% | Greece Central School District / 82,365 |
| 456. | 0.5% | North Shore Central School District / 16,394 |
| 456. | 0.5% | Trumansburg Central School District / 7,436 |
| 456. | 0.5% | Lindenhurst Union Free School District / 42,091 |
| 456. | 0.5% | Silver Creek Central School District / 6,156 |
| 460. | 0.5% | Cohoes City School District / 16,153 |
| 460. | 0.5% | East Williston Union Free School District / 8,481 |
| 460. | 0.5% | Chappaqua Central School District / 16,543 |
| 460. | 0.5% | St. Johnsville Central School District / 3,386 |
| 460. | 0.5% | Phelps-Clifton Springs Central School District / 11,382 |
| 465. | 0.4% | Babylon Union Free School District / 12,095 |
| 465. | 0.4% | Fire Island Union Free School District / 565 |
| 465. | 0.4% | Randolph Central School District / 6,354 |
| 465. | 0.4% | Oakfield-Alabama Central School District / 5,696 |
| 469. | 0.4% | Amityville Union Free School District / 25,399 |
| 469. | 0.4% | Churchville-Chili Central School District / 27,152 |
| 469. | 0.4% | Newcomb Central School District / 516 |
| 469. | 0.4% | Port Byron Central School District / 5,825 |
| 469. | 0.4% | Barker Central School District / 5,011 |
| 469. | 0.4% | Cleveland Hill Union Free School District / 11,276 |
| 475. | 0.4% | Alden Central School District / 13,550 |
| 475. | 0.4% | Brockport Central School District / 26,742 |
| 475. | 0.4% | Hadley-Luzerne Central School District / 6,565 |
| 475. | 0.4% | Clymer Central School District / 3,021 |
| 475. | 0.4% | Hannibal Central School District / 8,611 |
| 480. | 0.4% | Royalton-Hartland Central School District / 8,862 |
| 480. | 0.4% | Pleasantville Union Free School District / 8,222 |
| 480. | 0.4% | Bay Shore Union Free School District / 34,388 |
| 480. | 0.4% | Kingston City School District / 51,903 |
| 480. | 0.4% | Ogdensburg City School District / 11,466 |
| 485. | 0.4% | Caledonia-Mumford Central School District / 5,461 |
| 485. | 0.4% | North Merrick Union Free School District / 13,589 |
| 485. | 0.4% | Somers Central School District / 19,655 |
| 488. | 0.4% | Manchester-Shortsville Central School District / 6,165 |
| 488. | 0.4% | Westport Central School District / 1,412 |
| 488. | 0.4% | Scarsdale Union Free School District / 18,049 |
| 488. | 0.4% | Buffalo City School District / 261,955 |
| 488. | 0.4% | Bedford Central School District / 28,660 |
| 493. | 0.4% | Wynantskill Union Free School District / 3,863 |
| 493. | 0.4% | Lakeland Central School District / 35,849 |
| 493. | 0.4% | Ripley Central School District / 1,549 |
| 496. | 0.4% | Massapequa Union Free School District / 46,926 |
| 496. | 0.4% | Lyons Central School District / 6,961 |
| 496. | 0.4% | Huntington Union Free School District / 34,983 |
| 496. | 0.4% | Carmel Central School District / 28,948 |
| 496. | 0.4% | Middletown City School District / 40,340 |
| 501. | 0.4% | West Seneca Central School District / 53,381 |
| 501. | 0.4% | Indian Lake Central School District / 1,447 |
| 501. | 0.4% | Duanesburg Central School District / 4,987 |
| 501. | 0.4% | Southampton Union Free School District / 10,137 |
| 501. | 0.4% | West Hempstead Union Free School District / 16,250 |
| 506. | 0.4% | Pine Bush Central School District / 33,611 |
| 506. | 0.4% | Windham-Ashland-Jewett Central School District / 3,054 |
| 506. | 0.4% | Geneva City School District / 17,556 |
| 506. | 0.4% | Lyndonville Central School District / 4,540 |
| 510. | 0.3% | Pembroke Central School District / 6,864 |
| 510. | 0.3% | Saranac Central School District / 14,038 |
| 510. | 0.3% | Eastchester Union Free School District / 18,881 |
| 510. | 0.3% | Red Creek Central School District / 6,135 |
| 514. | 0.3% | Catskill Central School District / 12,632 |
| 514. | 0.3% | Wappingers Central School District / 72,437 |
| 514. | 0.3% | Alexander Central School District / 5,670 |
| 514. | 0.3% | Thousand Islands Central School District / 8,032 |
| 514. | 0.3% | Marlboro Central School District / 12,739 |
| 514. | 0.3% | Islip Union Free School District / 19,590 |
| 520. | 0.3% | Clarkstown Central School District / 48,175 |
| 520. | 0.3% | Yorktown Central School District / 20,373 |
| 520. | 0.3% | Deer Park Union Free School District / 26,010 |
| 520. | 0.3% | Byram Hills Central School District / 11,126 |
| 520. | 0.3% | Highland Central School District / 12,072 |
| 525. | 0.3% | Bellmore-Merrick Central High School District / 69,437 |
| 525. | 0.3% | Westhampton Beach Union Free School District / 5,590 |
| 527. | 0.3% | Patchogue-Medford Union Free School District / 52,527 |
| 527. | 0.3% | Beekmantown Central School District / 13,083 |
| 527. | 0.3% | Northport-East Northport Union Free School District / 36,440 |
| 530. | 0.3% | Harrison Central School District / 27,443 |
| 530. | 0.3% | Ramapo Central School District / 28,838 |
| 530. | 0.3% | Hewlett-Woodmere Union Free School District / 19,185 |
| 530. | 0.3% | Hastings-on-Hudson Union Free School District / 8,496 |
| 530. | 0.3% | Commack Union Free School District / 37,716 |
| 535. | 0.3% | Gananda Central School District / 5,765 |
| 535. | 0.3% | Fort Edward Union Free School District / 3,096 |
| 535. | 0.3% | Waterford-Halfmoon Union Free School District / 5,510 |
| 535. | 0.3% | Hinsdale Central School District / 2,592 |
| 539. | 0.3% | New Rochelle City School District / 77,074 |
| 539. | 0.3% | Montauk Union Free School District / 3,559 |
| 541. | 0.3% | Garden City Union Free School District / 22,188 |
| 541. | 0.3% | Northern Adirondack Central School District / 6,463 |
| 541. | 0.3% | Kings Park Central School District / 23,437 |
| 544. | 0.3% | Half Hollow Hills Central School District / 47,761 |
| 544. | 0.3% | Hendrick Hudson Central School District / 15,348 |
| 544. | 0.3% | Lackawanna City School District / 18,116 |
| 544. | 0.3% | Bronxville Union Free School District / 6,345 |
| 544. | 0.3% | Riverhead Central School District / 39,232 |
| 544. | 0.3% | Pearl River Union Free School District / 15,683 |
| 550. | 0.2% | Newburgh City School District / 66,270 |
| 550. | 0.2% | Oyster Bay-East Norwich Central School District / 12,666 |
| 550. | 0.2% | Newfane Central School District / 10,273 |
| 550. | 0.2% | Cornwall Central School District / 17,101 |
| 554. | 0.2% | Hunter-Tannersville Central School District / 3,737 |
| 554. | 0.2% | Monticello Central School District / 21,547 |
| 554. | 0.2% | Crown Point Central School District / 2,069 |
| 554. | 0.2% | Eastport-South Manor Central School District / 18,101 |
| 558. | 0.2% | Jasper-Troupsburg Central School District / 3,331 |
| 558. | 0.2% | Bethpage Union Free School District / 19,797 |
| 558. | 0.2% | Glens Falls Common School District / 2,159 |
| 558. | 0.2% | Salmon River Central School District / 6,987 |
| 562. | 0.2% | Valley Stream Union Free School District 13 / 28,126 |
| 562. | 0.2% | Levittown Union Free School District / 47,210 |
| 562. | 0.2% | Nanuet Union Free School District / 13,465 |
| 562. | 0.2% | Tuckahoe Union Free School District / 7,145 |
| 562. | 0.2% | Baldwin Union Free School District / 33,235 |
| 567. | 0.2% | Menands Union Free School District / 3,814 |
| 567. | 0.2% | Miller Place Union Free School District / 15,473 |
| 567. | 0.2% | Harborfields Central School District / 19,183 |
| 567. | 0.2% | Syosset Central School District / 34,158 |
| 567. | 0.2% | Connetquot Central School District / 39,864 |
| 572. | 0.2% | Brewster Central School District / 22,843 |
| 573. | 0.2% | Fallsburg Central School District / 10,695 |
| 573. | 0.2% | Long Beach City School District / 39,087 |
| 573. | 0.2% | Mechanicville City School District / 9,756 |
| 573. | 0.2% | Locust Valley Central School District / 15,999 |
| 573. | 0.2% | Lynbrook Union Free School District / 17,149 |
| 573. | 0.2% | Oceanside Union Free School District / 35,653 |
| 579. | 0.2% | Monroe-Woodbury Central School District / 36,432 |
| 579. | 0.2% | Rocky Point Union Free School District / 17,667 |
| 579. | 0.2% | Great Neck Union Free School District / 43,966 |
| 579. | 0.2% | Blind Brook-Rye Union Free School District / 6,295 |
| 579. | 0.2% | Prattsburgh Central School District / 3,061 |
| 579. | 0.2% | Longwood Central School District / 63,803 |
| 579. | 0.2% | Hicksville Union Free School District / 38,789 |
| 586. | 0.2% | New York City Department Of Education / 8,199,221 |
| 586. | 0.2% | Ellenville Central School District / 12,721 |
| 586. | 0.2% | Franklin Square Union Free School District / 25,191 |
| 586. | 0.2% | Brookhaven-Comsewogue Union Free School District / 25,917 |
| 586. | 0.2% | Haverstraw-Stony Point Central School District / 47,599 |
| 586. | 0.2% | Marion Central School District / 6,076 |
| 586. | 0.2% | Hampton Bays Union Free School District / 12,971 |
| 593. | 0.1% | Poughkeepsie City School District / 31,492 |
| 593. | 0.1% | Jericho Union Free School District / 16,980 |
| 593. | 0.1% | Sachem Central School District / 83,654 |
| 593. | 0.1% | Mount Vernon City School District / 67,414 |
| 597. | 0.1% | Tuxedo Union Free School District / 2,622 |
| 597. | 0.1% | Solvay Union Free School District / 9,834 |
| 597. | 0.1% | Name N/A / 251,129 |
| 597. | 0.1% | Peekskill City School District / 22,771 |
| 597. | 0.1% | Glen Cove City School District / 26,918 |
| 602. | 0.1% | Fonda-Fultonville Central School District / 8,830 |
| 602. | 0.1% | White Plains City School District / 56,768 |
| 602. | 0.1% | Rockville Centre Union Free School District / 21,796 |
| 602. | 0.1% | Hauppauge Union Free School District / 23,361 |
| 602. | 0.1% | William Floyd Union Free School District / 48,720 |
| 602. | 0.1% | Briarcliff Manor Union Free School District / 8,016 |
| 602. | 0.1% | Mount Sinai Union Free School District / 12,337 |
| 609. | 0.1% | Mineola Union Free School District / 23,652 |
| 609. | 0.1% | Port Washington Union Free School District / 30,979 |
| 609. | 0.1% | Cheektowaga-Sloan Union Free School District / 11,795 |
| 609. | 0.1% | Port Chester-Rye Union Free School District / 31,913 |
| 613. | 0.1% | Smithtown Central School District / 56,584 |
| 613. | 0.1% | Lawrence Union Free School District / 34,923 |
| 613. | 0.1% | Greenburgh Central School District / 21,325 |
| 613. | 0.1% | Plainedge Union Free School District / 20,433 |
| 613. | 0.1% | Valley Stream Central High School District / 59,901 |
| 618. | 0.1% | West Islip Union Free School District / 28,064 |
| 618. | 0.1% | Island Park Union Free School District / 8,456 |
| 620. | 0.1% | Wantagh Union Free School District / 17,447 |
| 620. | 0.1% | Central Islip Union Free School District / 39,987 |
| 620. | 0.1% | East Ramapo Central School District / 112,701 |
| 620. | 0.1% | Uniondale Union Free School District / 42,878 |
| 624. | 0.1% | Chateaugay Central School District / 3,395 |
| 624. | 0.1% | Malverne Union Free School District / 14,520 |
| 624. | 0.1% | Floral Park-Bellerose Union Free School District / 20,372 |
| 627. | 0.1% | North Babylon Union Free School District / 30,835 |
| 627. | 0.1% | Middle Country Central School District / 65,253 |
| 627. | 0.1% | Sewanhaka Central High School District / 121,791 |
| 630. | 0.0% | Farmingdale Union Free School District / 39,719 |
| 630. | 0.0% | Yonkers City School District / 196,459 |
| 630. | 0.0% | Seaford Union Free School District / 16,042 |
| 630. | 0.0% | Freeport Union Free School District / 40,255 |
| 630. | 0.0% | East Meadow Union Free School District / 52,150 |
| 630. | 0.0% | Cheektowaga Central School District / 21,017 |
| 636. | 0.0% | Herricks Union Free School District / 24,400 |
| 636. | 0.0% | Mamaroneck Union Free School District / 28,370 |
| 636. | 0.0% | Elmont Union Free School District / 53,514 |
| 636. | 0.0% | Hempstead Union Free School District / 43,478 |
| 640. | 0.0% | Brentwood Union Free School District / 85,468 |
Please note that we only rank locations with 'Welsh as First Ancestry Population Percentage' data. The rank above might not be a complete list. Locations without 'Welsh 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.
