| Rank | Welsh as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 10.3% | School Administrative District 65 / 58 |
| 2. | 7.9% | Whiting / 512 |
| 3. | 5.9% | Lake View Plantation / 71 |
| 4. | 5.5% | Charlotte / 284 |
| 5. | 5.0% | Lincolnville / 2,192 |
| 6. | 4.6% | The Forks Plantation / 22 |
| 7. | 4.4% | Hope / 1,635 |
| 8. | 3.8% | Eastport / 1,458 |
| 9. | 3.7% | Blue Hill / 2,681 |
| 10. | 3.6% | Meddybemps / 133 |
| 10. | 3.6% | Talmadge / 57 |
| 12. | 3.3% | Islesboro / 626 |
| 13. | 3.3% | Cranberry Isles / 98 |
| 14. | 3.2% | Jefferson / 2,602 |
| 15. | 3.2% | Penobscot / 1,086 |
| 16. | 2.8% | School Administrative District 72 / 7,759 |
| 17. | 2.6% | Georgetown / 935 |
| 18. | 2.6% | School Administrative District 23 / 5,610 |
| 19. | 2.5% | School Administrative District 19 / 1,373 |
| 19. | 2.5% | Otis / 508 |
| 21. | 2.4% | Bowerbank / 88 |
| 22. | 2.4% | Tremont / 1,775 |
| 23. | 2.3% | Mount Desert / 2,086 |
| 24. | 2.3% | Name N/A / 13,696 |
| 25. | 2.2% | Name N/A / 1,779 |
| 26. | 2.0% | Caswell / 312 |
| 27. | 1.9% | Name N/A / 10,191 |
| 27. | 1.9% | Boothbay-Boothbay Harbor Community School District / 5,266 |
| 29. | 1.9% | Sedgwick / 1,226 |
| 29. | 1.9% | Gorham / 16,395 |
| 31. | 1.9% | Easton / 1,249 |
| 32. | 1.9% | Regional School Unit 18 / 19,006 |
| 33. | 1.8% | School Administrative District 17 / 24,188 |
| 34. | 1.8% | Great Lake Stream Plantation / 115 |
| 35. | 1.8% | Lisbon / 9,023 |
| 35. | 1.8% | Alexander / 419 |
| 35. | 1.8% | Regional School Unit 04 / 10,431 |
| 38. | 1.8% | Orrington / 3,737 |
| 39. | 1.7% | Regional School Unit 02 / 14,802 |
| 40. | 1.7% | Vanceboro / 128 |
| 41. | 1.7% | Piscataquis Unorganized Territory / 971 |
| 42. | 1.7% | Kittery / 9,538 |
| 43. | 1.7% | Brooksville / 983 |
| 44. | 1.6% | School Administrative District 09 / 17,751 |
| 45. | 1.6% | Regional School Unit 19 / 14,814 |
| 46. | 1.6% | School Administrative District 76 / 386 |
| 47. | 1.6% | Machiasport / 1,161 |
| 48. | 1.6% | Cape Elizabeth / 9,055 |
| 49. | 1.6% | School Administrative District 08 / 1,126 |
| 50. | 1.5% | Regional School Unit 20 / 18,290 |
| 51. | 1.5% | Hancock Unorganized Territory / 162 |
| 52. | 1.5% | School Administrative District 75 / 19,564 |
| 53. | 1.5% | Name N/A / 31,164 |
| 54. | 1.5% | East Machias / 1,235 |
| 55. | 1.5% | Regional School Unit 13 / 17,136 |
| 56. | 1.4% | School Administrative District 61 / 14,444 |
| 57. | 1.4% | Nobleboro / 1,699 |
| 58. | 1.4% | School Administrative District 07 / 456 |
| 58. | 1.4% | School Administrative District 04 / 5,172 |
| 60. | 1.4% | Mount Desert Community School District / 10,939 |
| 61. | 1.4% | Oxford Unorganized Territory / 594 |
| 61. | 1.4% | School Administrative District 28 / 8,227 |
| 63. | 1.3% | School Administrative District 63 / 6,369 |
| 64. | 1.3% | School Administrative District 54 / 17,259 |
| 65. | 1.3% | School Administrative District 11 / 13,659 |
| 66. | 1.3% | Appleton / 1,642 |
| 67. | 1.3% | Bangor / 32,988 |
| 68. | 1.2% | Milford / 3,056 |
| 68. | 1.2% | Winthrop / 6,107 |
| 70. | 1.2% | Jonesboro / 511 |
| 71. | 1.2% | School Administrative District 68 / 6,850 |
| 72. | 1.1% | South Portland / 24,997 |
| 73. | 1.1% | Woodland / 1,215 |
| 74. | 1.1% | Hermon / 5,432 |
| 75. | 1.1% | Name N/A / 5,673 |
| 75. | 1.1% | School Administrative District 01 / 13,023 |
| 75. | 1.1% | Medford / 211 |
| 78. | 1.1% | Regional School Unit 25 / 8,394 |
| 78. | 1.1% | Bristol / 2,748 |
| 80. | 1.1% | School Administrative District 51 / 10,796 |
| 81. | 1.0% | School Administrative District 40 / 14,537 |
| 82. | 1.0% | Auburn / 23,104 |
| 82. | 1.0% | School Administrative District 55 / 8,061 |
| 82. | 1.0% | Robbinston / 579 |
| 85. | 1.0% | Aroostook Unorganized Territory / 1,408 |
| 86. | 1.0% | Regional School Unit 10 / 18,910 |
| 86. | 1.0% | School Administrative District 70 / 3,684 |
| 88. | 1.0% | Roque Bluffs / 236 |
| 89. | 1.0% | Edgecomb / 1,082 |
| 90. | 1.0% | Regional School Unit 01 / 16,270 |
| 91. | 0.9% | Brunswick / 20,376 |
| 92. | 0.9% | Regional School Unit 14 / 21,475 |
| 92. | 0.9% | Harmony / 820 |
| 94. | 0.9% | Grand Isle / 481 |
| 94. | 0.9% | School Administrative District 12 / 1,114 |
| 94. | 0.9% | School Administrative District 06 / 25,994 |
| 97. | 0.9% | Deer Isle-Stonington Community School District / 2,918 |
| 98. | 0.9% | Princeton / 815 |
| 99. | 0.9% | School Administrative District 41 / 4,454 |
| 99. | 0.9% | Bar Harbor / 5,230 |
| 101. | 0.8% | Cutler / 560 |
| 102. | 0.8% | Regional School Unit 38 / 7,758 |
| 103. | 0.8% | Wells-Ogunquit Community School District / 10,845 |
| 103. | 0.8% | School Administrative District 64 / 7,793 |
| 105. | 0.8% | Regional School Unit 21 / 18,423 |
| 106. | 0.8% | Sanford / 20,885 |
| 107. | 0.8% | Portland / 66,235 |
| 108. | 0.8% | School Administrative District 37 / 5,873 |
| 109. | 0.8% | School Administrative District 03 / 10,466 |
| 109. | 0.8% | Machias / 2,392 |
| 111. | 0.8% | New Sweden / 576 |
| 111. | 0.8% | Calais / 3,132 |
| 113. | 0.7% | School Administrative District 35 / 13,454 |
| 114. | 0.7% | Brewer / 9,452 |
| 114. | 0.7% | Pembroke / 931 |
| 116. | 0.7% | Lewiston / 36,588 |
| 116. | 0.7% | Acton / 2,457 |
| 116. | 0.7% | Regional School Unit 16 / 11,007 |
| 119. | 0.7% | School Administrative District 52 / 12,032 |
| 119. | 0.7% | Long Island / 310 |
| 121. | 0.7% | Regional School Unit 24 / 18,720 |
| 122. | 0.7% | School Administrative District 44 / 5,903 |
| 123. | 0.7% | Southwest Harbor / 1,848 |
| 124. | 0.7% | Trenton / 1,419 |
| 124. | 0.7% | Regional School Unit 12 / 14,737 |
| 124. | 0.7% | Washington Unorganized Territory / 1,475 |
| 127. | 0.6% | Franklin Unorganized Territory / 843 |
| 127. | 0.6% | Brooklin / 981 |
| 129. | 0.6% | Regional School Unit 26 / 17,096 |
| 130. | 0.6% | School Administrative District 30 / 2,035 |
| 131. | 0.6% | School Administrative District 22 / 12,465 |
| 132. | 0.6% | Castine / 1,673 |
| 132. | 0.6% | Southport / 539 |
| 134. | 0.6% | Winslow / 7,779 |
| 135. | 0.6% | School Administrative District 32 / 2,159 |
| 136. | 0.6% | Surry / 1,736 |
| 137. | 0.6% | Scarborough / 18,941 |
| 138. | 0.5% | Biddeford / 21,351 |
| 139. | 0.5% | Yarmouth / 8,390 |
| 140. | 0.5% | Greenville / 1,692 |
| 140. | 0.5% | Falmouth / 11,233 |
| 142. | 0.5% | Somerset Unorganized Territory / 694 |
| 142. | 0.5% | Medway / 1,332 |
| 144. | 0.5% | School Administrative District 60 / 17,903 |
| 145. | 0.5% | School Administrative District 57 / 21,912 |
| 145. | 0.5% | School Administrative District 53 / 6,216 |
| 147. | 0.4% | York / 12,625 |
| 147. | 0.4% | School Administrative District 20 / 3,478 |
| 149. | 0.4% | School Administrative District 74 / 5,330 |
| 149. | 0.4% | Westbrook / 17,501 |
| 149. | 0.4% | Carrabassett Valley / 531 |
| 149. | 0.4% | School Administrative District 58 / 4,903 |
| 153. | 0.4% | School Administrative District 33 / 1,783 |
| 154. | 0.4% | Regional School Unit 23 / 29,430 |
| 155. | 0.4% | Augusta / 19,088 |
| 156. | 0.4% | Chebeague Island / 285 |
| 156. | 0.4% | School Administrative District 59 / 6,482 |
| 158. | 0.4% | School Administrative District 42 / 2,284 |
| 159. | 0.4% | Regional School Unit 05 / 13,256 |
| 160. | 0.4% | Baileyville / 1,392 |
| 161. | 0.3% | School Administrative District 15 / 13,280 |
| 162. | 0.3% | School Administrative District 14 / 797 |
| 163. | 0.3% | Millinocket / 4,530 |
| 164. | 0.3% | School Administrative District 45 / 2,346 |
| 164. | 0.3% | Penobscot Unorganized Territory / 1,192 |
| 166. | 0.3% | Regional School Unit 34 / 10,342 |
| 166. | 0.3% | School Administrative District 49 / 14,826 |
| 168. | 0.3% | Waterville / 15,780 |
| 169. | 0.3% | School Administrative District 29 / 8,199 |
| 170. | 0.2% | South Bristol / 964 |
| 171. | 0.2% | Regional School Unit 39 / 10,596 |
| 171. | 0.2% | Newcastle / 1,814 |
| 173. | 0.2% | Greenbush / 1,326 |
| 174. | 0.1% | School Administrative District 67 / 6,398 |
| 175. | 0.1% | Dedham / 1,850 |
| 175. | 0.1% | Vassalboro / 4,354 |
| 177. | 0.1% | School Administrative District 46 / 6,550 |
| 178. | 0.1% | School Administrative District 27 / 6,495 |
| 179. | 0.1% | Great Salt Bay Community School District / 4,768 |
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.
