| Rank | Welsh as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 3.4% | Manchester Essex Regional School District / 8,463 |
| 2. | 3.3% | New Salem-Wendell School District / 1,808 |
| 3. | 3.2% | Edgartown School District / 4,003 |
| 4. | 3.2% | Eastham School District / 5,488 |
| 5. | 2.6% | Boxford School District / 8,175 |
| 6. | 2.3% | Hancock School District / 738 |
| 6. | 2.3% | Mount Greylock/New Lebanon (NY) School Districts in Hancock (7-12) / 738 |
| 8. | 2.1% | Brimfield School District / 3,800 |
| 9. | 2.1% | North Adams School District in Florida (9-12) / 822 |
| 10. | 2.0% | Lenox School District / 5,096 |
| 11. | 2.0% | Leverett School District / 1,914 |
| 12. | 2.0% | Littleton School District / 8,705 |
| 12. | 2.0% | Blackstone-Millville School District / 12,185 |
| 14. | 1.9% | Deerfield School District / 4,724 |
| 15. | 1.9% | Carlisle School District / 4,817 |
| 16. | 1.8% | Florida School District / 966 |
| 17. | 1.7% | Gill-Montague School District in Erving (7-12) / 1,863 |
| 17. | 1.7% | Erving School District / 1,863 |
| 19. | 1.6% | Leicester School District / 11,100 |
| 20. | 1.6% | Hamilton-Wenham School District / 12,841 |
| 21. | 1.6% | Provincetown School District / 3,407 |
| 22. | 1.5% | Conway School District / 1,914 |
| 23. | 1.5% | Williamsburg School District / 2,477 |
| 24. | 1.5% | Scituate School District / 18,192 |
| 25. | 1.4% | Mohawk Trail School District / 8,829 |
| 26. | 1.4% | Cohasset School District / 7,323 |
| 27. | 1.4% | Whately School District / 1,588 |
| 28. | 1.4% | Farmington River Regional School District / 2,044 |
| 29. | 1.3% | Masconomet School District / 23,229 |
| 29. | 1.3% | Frontier School District / 12,005 |
| 31. | 1.3% | Hingham School District / 22,158 |
| 31. | 1.3% | Pioneer Valley School District / 6,737 |
| 33. | 1.3% | North Adams School District in Clarksburg (9-12) / 1,893 |
| 33. | 1.3% | Clarksburg School District / 1,893 |
| 35. | 1.3% | Concord-Carlisle School District / 22,383 |
| 35. | 1.3% | Nauset School District / 24,870 |
| 37. | 1.3% | Orleans School District / 6,282 |
| 37. | 1.3% | Mohawk Trail School District in Rowe (7-12) / 418 |
| 37. | 1.3% | Rowe School District / 418 |
| 40. | 1.3% | Barnstable School District / 46,781 |
| 41. | 1.3% | Nashoba School District / 17,919 |
| 42. | 1.2% | Westford School District / 21,984 |
| 43. | 1.2% | Uxbridge School District / 12,737 |
| 44. | 1.2% | Quabbin School District / 15,738 |
| 45. | 1.2% | Marblehead School District / 19,870 |
| 46. | 1.2% | Nantucket School District / 11,013 |
| 47. | 1.1% | Weston School District / 11,686 |
| 48. | 1.1% | Concord School District / 17,566 |
| 48. | 1.1% | Topsfield School District / 6,096 |
| 50. | 1.1% | Lunenburg School District / 10,133 |
| 50. | 1.1% | North Reading School District / 13,286 |
| 52. | 1.1% | Adams-Cheshire School District in Savoy (7-12) / 763 |
| 52. | 1.1% | Savoy School District / 763 |
| 54. | 1.0% | Northampton School District / 28,548 |
| 55. | 1.0% | Pelham School District / 1,343 |
| 56. | 1.0% | Norfolk School District / 10,968 |
| 57. | 1.0% | Martha's Vineyard School District / 15,519 |
| 58. | 1.0% | Gill-Montague School District / 9,750 |
| 59. | 1.0% | Georgetown School District / 8,543 |
| 60. | 1.0% | Longmeadow School District / 15,706 |
| 60. | 1.0% | Freetown School District / 9,013 |
| 62. | 0.9% | Marion School District / 5,167 |
| 63. | 0.9% | Medfield School District / 12,175 |
| 63. | 0.9% | Webster School District / 16,914 |
| 63. | 0.9% | Quaboag Regional School District / 9,131 |
| 66. | 0.9% | West Bridgewater School District / 6,667 |
| 67. | 0.9% | Gateway School District / 8,449 |
| 68. | 0.9% | Sherborn School District / 4,230 |
| 69. | 0.9% | Gloucester School District / 30,264 |
| 70. | 0.9% | Ashland School District / 15,136 |
| 70. | 0.9% | Natick School District / 31,921 |
| 70. | 0.9% | Amherst-Pelham School District / 41,163 |
| 70. | 0.9% | Wellfleet School District / 3,041 |
| 74. | 0.9% | Wales School District / 2,143 |
| 75. | 0.9% | Needham School District / 28,679 |
| 75. | 0.9% | Westwood School District / 14,040 |
| 75. | 0.9% | Amherst School District / 35,971 |
| 75. | 0.9% | Chesterfield-Goshen School District / 2,246 |
| 79. | 0.8% | Foxborough School District / 16,445 |
| 79. | 0.8% | Swampscott School District / 13,997 |
| 81. | 0.8% | North Attleborough School District / 27,807 |
| 81. | 0.8% | Winchester School District / 21,229 |
| 81. | 0.8% | Wayland School District / 13,219 |
| 84. | 0.8% | Southwick-Tolland School District / 10,163 |
| 84. | 0.8% | Greenfield School District / 17,862 |
| 84. | 0.8% | Reading School District / 23,257 |
| 84. | 0.8% | Sandwich School District / 20,150 |
| 88. | 0.8% | Belmont School District / 23,394 |
| 88. | 0.8% | Tantasqua School District / 20,741 |
| 90. | 0.8% | Hatfield School District / 3,237 |
| 91. | 0.8% | Hopkinton School District / 14,326 |
| 92. | 0.8% | Acton School District / 20,777 |
| 93. | 0.8% | Plainville School District / 8,167 |
| 93. | 0.8% | Oxford School District / 13,813 |
| 93. | 0.8% | Cambridge School District / 106,255 |
| 96. | 0.7% | Whitman-Hanson School District / 24,073 |
| 96. | 0.7% | Name N/A / 418,381 |
| 96. | 0.7% | Duxbury School District / 14,225 |
| 99. | 0.7% | Wellesley School District / 27,091 |
| 99. | 0.7% | Williamstown School District / 8,097 |
| 99. | 0.7% | Franklin School District / 31,247 |
| 99. | 0.7% | Abington School District / 16,399 |
| 103. | 0.7% | Andover School District / 33,309 |
| 103. | 0.7% | Southern Berkshire School District / 7,538 |
| 103. | 0.7% | North Andover School District / 27,433 |
| 106. | 0.7% | North Middlesex School District / 23,903 |
| 107. | 0.7% | Sudbury School District / 17,244 |
| 108. | 0.7% | Lexington School District / 30,445 |
| 109. | 0.7% | King Philip School District / 30,241 |
| 109. | 0.7% | Northborough School District / 14,732 |
| 111. | 0.7% | North Adams School District / 13,941 |
| 112. | 0.7% | Groton-Dunstable School District / 13,868 |
| 113. | 0.7% | Holland School District / 2,563 |
| 113. | 0.7% | Northborough-Southborough School District / 24,413 |
| 115. | 0.6% | Fairhaven School District / 16,111 |
| 115. | 0.6% | Ipswich School District / 13,302 |
| 115. | 0.6% | Lee School District / 6,196 |
| 115. | 0.6% | Brookline School District / 56,166 |
| 119. | 0.6% | Walpole School District / 23,167 |
| 119. | 0.6% | Chelmsford School District / 33,655 |
| 121. | 0.6% | Milton School District / 26,333 |
| 121. | 0.6% | Pembroke School District / 18,476 |
| 121. | 0.6% | South Hadley School District / 17,190 |
| 121. | 0.6% | Acton-Boxborough School District / 25,878 |
| 121. | 0.6% | Marshfield School District / 24,619 |
| 126. | 0.6% | Mount Greylock School District / 11,227 |
| 126. | 0.6% | Kingston School District / 12,360 |
| 126. | 0.6% | Southborough School District / 9,681 |
| 126. | 0.6% | Lincoln-Sudbury School District / 25,541 |
| 130. | 0.6% | Avon School District / 4,349 |
| 130. | 0.6% | Dedham School District / 24,308 |
| 132. | 0.6% | Ralph C. Mahar School District / 10,743 |
| 132. | 0.6% | West Boylston School District / 8,090 |
| 134. | 0.6% | Watertown School District / 32,767 |
| 134. | 0.6% | Granville School District / 1,659 |
| 134. | 0.6% | West Springfield School District / 28,324 |
| 134. | 0.6% | Dennis-Yarmouth School District / 39,675 |
| 134. | 0.6% | Up-Island Regional School District / 3,797 |
| 134. | 0.6% | Chatham School District / 6,761 |
| 134. | 0.6% | Southwick-Tolland School District in Granville (9-12) / 1,659 |
| 134. | 0.6% | Burlington School District / 24,983 |
| 142. | 0.6% | Falmouth School District / 33,071 |
| 143. | 0.5% | Wareham School District / 21,150 |
| 143. | 0.5% | Newburyport School District / 17,428 |
| 143. | 0.5% | Canton School District / 21,865 |
| 146. | 0.5% | Gardner School District / 21,018 |
| 146. | 0.5% | Beverly School District / 39,597 |
| 146. | 0.5% | Sunderland School District / 3,779 |
| 149. | 0.5% | Belchertown School District / 14,085 |
| 149. | 0.5% | Truro School District / 1,938 |
| 149. | 0.5% | Nauset/Provincetown School Districts in Turo (7-12) / 1,938 |
| 152. | 0.5% | Newton School District / 83,504 |
| 152. | 0.5% | Freetown-Lakeville School District / 19,473 |
| 152. | 0.5% | Sturbridge School District / 8,826 |
| 152. | 0.5% | Somerville School District / 75,880 |
| 156. | 0.5% | Harwich School District / 12,316 |
| 156. | 0.5% | Hampshire School District / 12,382 |
| 156. | 0.5% | Hawlemont School District / 1,518 |
| 156. | 0.5% | Mohawk Trail Regional School District in Hawley and Charlemont towns / 1,518 |
| 156. | 0.5% | Dover-Sherborn School District / 9,893 |
| 161. | 0.5% | Harvard School District / 6,145 |
| 161. | 0.5% | Lynnfield School District / 11,492 |
| 163. | 0.5% | Milford School District / 27,636 |
| 163. | 0.5% | Melrose School District / 26,672 |
| 163. | 0.5% | Medway School District / 12,813 |
| 166. | 0.5% | Holliston School District / 13,963 |
| 166. | 0.5% | Pittsfield School District / 42,943 |
| 166. | 0.5% | Westport School District / 15,286 |
| 166. | 0.5% | Arlington School District / 41,244 |
| 166. | 0.5% | Bridgewater-Raynham School District / 40,440 |
| 171. | 0.5% | Billerica School District / 39,225 |
| 171. | 0.5% | Easthampton School District / 16,176 |
| 171. | 0.5% | Dracut School District / 28,930 |
| 174. | 0.5% | Grafton School District / 17,535 |
| 175. | 0.4% | Bedford School District / 13,125 |
| 175. | 0.4% | Shrewsbury School District / 33,888 |
| 175. | 0.4% | Brewster School District / 10,059 |
| 178. | 0.4% | Adams-Cheshire School District / 11,674 |
| 178. | 0.4% | Maynard School District / 10,385 |
| 178. | 0.4% | Somerset School District / 18,503 |
| 178. | 0.4% | Wachusett School District / 41,452 |
| 178. | 0.4% | Waltham School District / 60,547 |
| 178. | 0.4% | Medford School District / 55,796 |
| 178. | 0.4% | Hudson School District / 19,551 |
| 185. | 0.4% | Plymouth School District / 56,124 |
| 185. | 0.4% | Berkshire Hills School District / 10,385 |
| 187. | 0.4% | Athol-Royalston School District / 13,181 |
| 188. | 0.4% | Douglas School District / 8,020 |
| 188. | 0.4% | Lincoln School District / 8,297 |
| 190. | 0.4% | Silver Lake School District / 22,849 |
| 190. | 0.4% | Chicopee School District / 55,875 |
| 190. | 0.4% | Mendon-Upton School District / 12,310 |
| 190. | 0.4% | Westborough School District / 18,427 |
| 190. | 0.4% | Millis School District / 7,964 |
| 195. | 0.4% | Boston School District / 625,304 |
| 195. | 0.4% | Auburn School District / 16,473 |
| 197. | 0.4% | Sutton School District / 9,124 |
| 197. | 0.4% | East Bridgewater School District / 13,886 |
| 199. | 0.4% | Salem School District / 41,547 |
| 199. | 0.4% | Easton School District / 22,913 |
| 199. | 0.4% | Dudley-Charlton Regional School District / 23,637 |
| 199. | 0.4% | Westhampton School District / 1,824 |
| 199. | 0.4% | Carver School District / 11,806 |
| 204. | 0.4% | East Longmeadow School District / 15,484 |
| 205. | 0.3% | Fitchburg School District / 41,007 |
| 205. | 0.3% | Clinton School District / 14,196 |
| 207. | 0.3% | Attleboro School District / 43,297 |
| 207. | 0.3% | Dartmouth School District / 34,002 |
| 207. | 0.3% | Agawam School District / 28,599 |
| 210. | 0.3% | Middleton School District / 8,958 |
| 210. | 0.3% | Winthrop School District / 18,605 |
| 210. | 0.3% | Bourne School District / 19,395 |
| 210. | 0.3% | Pentucket School District / 17,795 |
| 210. | 0.3% | Quincy School District / 90,120 |
| 215. | 0.3% | Ashburnham-Westminster School District / 13,472 |
| 215. | 0.3% | Lanesborough School District / 3,130 |
| 215. | 0.3% | Spencer-East Brookfield School District / 14,173 |
| 215. | 0.3% | Norwell School District / 10,271 |
| 215. | 0.3% | Wrentham School District / 11,106 |
| 220. | 0.3% | Framingham School District / 66,411 |
| 221. | 0.3% | Old Rochester School District / 16,846 |
| 221. | 0.3% | Westfield School District / 41,373 |
| 221. | 0.3% | Millbury School District / 13,628 |
| 221. | 0.3% | Sharon School District / 17,365 |
| 225. | 0.3% | Triton School District / 20,954 |
| 225. | 0.3% | Worcester School District / 178,397 |
| 225. | 0.3% | Danvers School District / 26,775 |
| 228. | 0.3% | Tewksbury School District / 29,030 |
| 228. | 0.3% | Weymouth School District / 53,602 |
| 228. | 0.3% | Tyngsborough School District / 11,594 |
| 228. | 0.3% | Bellingham School District / 15,752 |
| 232. | 0.3% | Petersham School District / 1,246 |
| 232. | 0.3% | Brookfield School District / 3,409 |
| 232. | 0.3% | Central Berkshire School District / 14,215 |
| 235. | 0.2% | Rockport School District / 7,631 |
| 235. | 0.2% | Boylston School District / 4,365 |
| 235. | 0.2% | Berlin School District / 2,795 |
| 235. | 0.2% | Peabody School District / 51,186 |
| 235. | 0.2% | Ludlow School District / 22,217 |
| 235. | 0.2% | Mashpee School District / 14,265 |
| 235. | 0.2% | Berlin-Boylston School District / 7,160 |
| 242. | 0.2% | Seekonk School District / 13,573 |
| 242. | 0.2% | Northbridge School District / 14,587 |
| 242. | 0.2% | Woburn School District / 38,404 |
| 245. | 0.2% | Everett School District / 37,525 |
| 245. | 0.2% | Wakefield School District / 24,715 |
| 245. | 0.2% | Saugus School District / 27,089 |
| 248. | 0.2% | Braintree School District / 34,466 |
| 248. | 0.2% | Shirley School District / 7,848 |
| 248. | 0.2% | Ayer/Lunenberg School Districts in Shirley (9-12) / 7,848 |
| 251. | 0.2% | Hanover School District / 13,961 |
| 251. | 0.2% | Mansfield School District / 23,329 |
| 251. | 0.2% | Halifax School District / 7,735 |
| 251. | 0.2% | Lowell School District / 103,077 |
| 255. | 0.2% | Fall River School District / 90,853 |
| 255. | 0.2% | Wilmington School District / 21,972 |
| 255. | 0.2% | Leominster School District / 42,085 |
| 255. | 0.2% | Norwood School District / 28,346 |
| 255. | 0.2% | Chelsea School District / 36,166 |
| 260. | 0.2% | Richmond School District / 1,838 |
| 260. | 0.2% | Stoughton School District / 26,910 |
| 260. | 0.2% | Middleborough School District / 21,051 |
| 260. | 0.2% | Pittsfield School District in Richmond (9-12) / 1,838 |
| 260. | 0.2% | Dover School District / 5,663 |
| 265. | 0.2% | Holyoke School District / 40,530 |
| 265. | 0.2% | Shutesbury School District / 1,935 |
| 267. | 0.2% | Holbrook School District / 10,685 |
| 267. | 0.2% | Brockton School District / 93,217 |
| 267. | 0.2% | Southbridge School District / 17,516 |
| 267. | 0.2% | Lynn School District / 87,196 |
| 271. | 0.2% | Berkley School District / 6,409 |
| 271. | 0.2% | New Bedford School District / 91,339 |
| 271. | 0.2% | Marlborough School District / 37,963 |
| 271. | 0.2% | Somerset School District in Berkley (9-12) / 6,409 |
| 271. | 0.2% | Dighton-Rehoboth School District / 18,006 |
| 276. | 0.1% | Monson School District / 9,023 |
| 276. | 0.1% | Hull School District / 11,090 |
| 278. | 0.1% | Lakeville School District / 10,460 |
| 279. | 0.1% | Taunton School District / 55,718 |
| 280. | 0.1% | Randolph School District / 30,391 |
| 280. | 0.1% | Palmer School District / 13,153 |
| 280. | 0.1% | Ware School District / 9,843 |
| 280. | 0.1% | Springfield School District / 153,170 |
| 280. | 0.1% | Lawrence School District / 70,273 |
| 285. | 0.1% | Revere School District / 50,555 |
| 286. | 0.1% | Methuen School District / 43,889 |
| 286. | 0.1% | Fairhaven/New Bedford School Districts in Acushnet (9-12) / 10,372 |
| 286. | 0.1% | Acushnet School District / 10,372 |
| 286. | 0.1% | Rockland School District / 17,845 |
| 290. | 0.1% | Norton School District / 19,103 |
| 290. | 0.1% | Stoneham School District / 21,362 |
| 290. | 0.1% | Granby School District / 6,255 |
| 293. | 0.1% | Haverhill School District / 60,681 |
| 293. | 0.1% | Hampden-Wilbraham School District / 19,539 |
| 295. | 0.1% | Swansea School District / 16,084 |
| 295. | 0.1% | Malden School District / 55,521 |
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.
