| Rank | Welsh as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 10.7% | Charlotte / 311 |
| 2. | 9.2% | Whiting / 528 |
| 3. | 8.7% | Beaver Cove / 126 |
| 4. | 7.4% | Rangeley Plantation / 109 |
| 5. | 6.9% | Lincoln Plantation / 66 |
| 6. | 5.4% | Jefferson / 2,529 |
| 7. | 5.2% | Lincolnville / 1,846 |
| 8. | 4.2% | Hope / 1,521 |
| 9. | 4.2% | Lake View Plantation / 100 |
| 10. | 4.2% | Otis / 400 |
| 11. | 3.9% | School Administrative District 76 / 443 |
| 11. | 3.9% | Alexander / 350 |
| 13. | 3.9% | Great Lake Stream Plantation / 122 |
| 13. | 3.9% | Willimantic / 132 |
| 15. | 3.7% | Eastport / 1,425 |
| 16. | 3.4% | Carrabassett Valley / 470 |
| 17. | 3.3% | Dallas Plantation / 290 |
| 18. | 3.2% | School Administrative District 72 / 8,060 |
| 19. | 2.7% | Penobscot / 1,377 |
| 20. | 2.7% | Shirley / 263 |
| 20. | 2.7% | School Administrative District 41 / 4,842 |
| 22. | 2.7% | Piscataquis Unorganized Territory / 936 |
| 23. | 2.6% | Fayette / 1,281 |
| 24. | 2.6% | Islesboro / 649 |
| 25. | 2.5% | Sedgwick / 1,192 |
| 25. | 2.5% | Machiasport / 1,043 |
| 25. | 2.5% | Meddybemps / 136 |
| 28. | 2.4% | Regional School Unit 16 / 10,969 |
| 29. | 2.4% | Surry / 1,666 |
| 29. | 2.4% | South Bristol / 976 |
| 31. | 2.3% | Blue Hill / 2,649 |
| 32. | 2.2% | Georgetown / 712 |
| 33. | 2.1% | School Administrative District 28 / 8,373 |
| 33. | 2.1% | Robbinston / 592 |
| 35. | 2.1% | Rangeley / 1,177 |
| 36. | 2.1% | Regional School Unit 20 / 18,312 |
| 37. | 2.1% | Hermon / 5,244 |
| 38. | 2.0% | Cranberry Isles / 101 |
| 39. | 2.0% | Acton / 2,001 |
| 40. | 2.0% | School Administrative District 08 / 1,090 |
| 40. | 2.0% | Kittery / 9,606 |
| 42. | 1.9% | Regional School Unit 04 / 10,221 |
| 43. | 1.9% | Appleton / 1,437 |
| 44. | 1.9% | Caswell / 340 |
| 45. | 1.8% | Tremont / 1,412 |
| 46. | 1.8% | School Administrative District 23 / 5,475 |
| 47. | 1.8% | Regional School Unit 19 / 14,947 |
| 48. | 1.8% | Milford / 3,055 |
| 49. | 1.7% | Dennysville / 399 |
| 50. | 1.7% | School Administrative District 54 / 17,286 |
| 51. | 1.6% | School Administrative District 17 / 23,682 |
| 52. | 1.6% | School Administration District 10 / 191 |
| 53. | 1.6% | School Administrative District 19 / 1,423 |
| 53. | 1.6% | Gorham / 16,065 |
| 55. | 1.6% | Baileyville / 1,554 |
| 55. | 1.6% | School Administrative District 07 / 461 |
| 57. | 1.5% | School Administrative District 75 / 19,689 |
| 58. | 1.5% | School Administrative District 70 / 3,645 |
| 59. | 1.5% | Cape Elizabeth / 9,056 |
| 60. | 1.5% | Regional School Unit 14 / 21,108 |
| 60. | 1.5% | School Administrative District 61 / 14,134 |
| 62. | 1.4% | Deer Isle-Stonington Community School District / 3,084 |
| 63. | 1.4% | School Administrative District 68 / 7,014 |
| 64. | 1.4% | Somerset Unorganized Territory / 876 |
| 64. | 1.4% | School Administrative District 09 / 18,036 |
| 66. | 1.4% | Mount Desert / 1,708 |
| 67. | 1.3% | Washington Unorganized Territory / 1,233 |
| 68. | 1.3% | Regional School Unit 02 / 14,748 |
| 69. | 1.2% | East Machias / 1,344 |
| 69. | 1.2% | Brunswick / 20,557 |
| 71. | 1.2% | Brewer / 9,433 |
| 72. | 1.2% | Edgecomb / 1,143 |
| 72. | 1.2% | Regional School Unit 23 / 29,367 |
| 74. | 1.2% | Waterville / 15,777 |
| 75. | 1.1% | Easton / 1,123 |
| 76. | 1.1% | School Administrative District 55 / 8,348 |
| 76. | 1.1% | Falmouth / 11,086 |
| 78. | 1.1% | School Administrative District 25 / 2,761 |
| 78. | 1.1% | Regional School Unit 18 / 18,880 |
| 80. | 1.1% | South Portland / 24,804 |
| 81. | 1.1% | Auburn / 23,279 |
| 81. | 1.1% | Cooper / 202 |
| 83. | 1.1% | School Administrative District 11 / 13,922 |
| 84. | 1.0% | Bangor / 32,899 |
| 85. | 1.0% | Winthrop / 6,149 |
| 86. | 1.0% | School Administrative District 06 / 25,893 |
| 87. | 1.0% | School Administrative District 35 / 13,431 |
| 87. | 1.0% | School Administrative District 12 / 949 |
| 89. | 1.0% | School Administrative District 01 / 12,845 |
| 89. | 1.0% | Roque Bluffs / 251 |
| 91. | 1.0% | Lisbon / 9,092 |
| 91. | 1.0% | School Administrative District 40 / 14,808 |
| 93. | 1.0% | Portland / 66,138 |
| 93. | 1.0% | School Administrative District 63 / 6,002 |
| 93. | 1.0% | Greenville / 1,606 |
| 96. | 1.0% | Harmony / 1,000 |
| 96. | 1.0% | Regional School Unit 13 / 17,358 |
| 98. | 0.9% | Regional School Unit 38 / 7,458 |
| 99. | 0.9% | School Administrative District 22 / 12,468 |
| 100. | 0.9% | Orrington / 3,710 |
| 101. | 0.9% | Augusta / 19,150 |
| 102. | 0.8% | Franklin Unorganized Territory / 865 |
| 102. | 0.8% | Regional School Unit 10 / 18,964 |
| 104. | 0.8% | Nobleboro / 1,647 |
| 104. | 0.8% | Pembroke / 980 |
| 104. | 0.8% | Regional School Unit 01 / 16,704 |
| 107. | 0.8% | Boothbay-Boothbay Harbor Community School District / 5,544 |
| 108. | 0.8% | Wells-Ogunquit Community School District / 10,763 |
| 109. | 0.7% | Aroostook Unorganized Territory / 1,513 |
| 109. | 0.7% | Regional School Unit 25 / 8,461 |
| 111. | 0.7% | School Administrative District 74 / 5,346 |
| 112. | 0.7% | Yarmouth / 8,390 |
| 113. | 0.7% | School Administrative District 60 / 17,650 |
| 113. | 0.7% | School Administrative District 37 / 5,522 |
| 113. | 0.7% | Trenton / 1,453 |
| 116. | 0.7% | School Administrative District 03 / 10,528 |
| 117. | 0.7% | Mount Desert Community School District / 10,039 |
| 117. | 0.7% | School Administrative District 44 / 6,036 |
| 119. | 0.7% | Sanford / 21,035 |
| 119. | 0.7% | Bremen / 675 |
| 121. | 0.6% | Regional School Unit 05 / 13,211 |
| 121. | 0.6% | Regional School Unit 24 / 19,161 |
| 123. | 0.6% | Lewiston / 36,684 |
| 124. | 0.6% | Grand Isle / 532 |
| 124. | 0.6% | Regional School Unit 26 / 16,708 |
| 126. | 0.6% | School Administrative District 64 / 7,993 |
| 127. | 0.6% | Biddeford / 21,490 |
| 127. | 0.6% | School Administrative District 45 / 2,504 |
| 129. | 0.5% | School Administrative District 51 / 10,679 |
| 130. | 0.5% | Cutler / 644 |
| 130. | 0.5% | Name N/A / 14,506 |
| 132. | 0.5% | School Administrative District 52 / 12,057 |
| 133. | 0.5% | Regional School Unit 21 / 18,423 |
| 134. | 0.5% | Westbrook / 17,314 |
| 134. | 0.5% | School Administrative District 57 / 21,609 |
| 136. | 0.5% | School Administrative District 53 / 6,142 |
| 136. | 0.5% | School Administrative District 59 / 6,441 |
| 138. | 0.4% | Regional School Unit 12 / 14,914 |
| 139. | 0.4% | School Administrative District 42 / 2,350 |
| 139. | 0.4% | Scarborough / 18,637 |
| 141. | 0.4% | Regional School Unit 39 / 10,958 |
| 141. | 0.4% | School Administrative District 15 / 13,059 |
| 143. | 0.4% | School Administrative District 04 / 4,994 |
| 143. | 0.4% | Southern Aroostook Community School District / 3,049 |
| 143. | 0.4% | School Administrative District 20 / 3,513 |
| 146. | 0.4% | Winslow / 7,823 |
| 147. | 0.4% | Jay / 4,890 |
| 147. | 0.4% | School Administrative District 36 / 5,322 |
| 149. | 0.3% | School Administrative District 58 / 4,823 |
| 149. | 0.3% | School Administrative District 31 / 3,830 |
| 151. | 0.3% | School Administrative District 14 / 803 |
| 152. | 0.3% | School Administrative District 49 / 14,919 |
| 152. | 0.3% | Southwest Harbor / 1,725 |
| 154. | 0.3% | Castine / 1,483 |
| 154. | 0.3% | Brooklin / 1,022 |
| 154. | 0.3% | School Administrative District 32 / 2,139 |
| 157. | 0.3% | Newcastle / 1,576 |
| 158. | 0.3% | York / 12,720 |
| 159. | 0.3% | Greenbush / 1,382 |
| 160. | 0.2% | School Administrative District 29 / 8,208 |
| 161. | 0.2% | Bar Harbor / 5,194 |
| 162. | 0.2% | Regional School Unit 34 / 10,108 |
| 162. | 0.2% | Great Salt Bay Community School District / 4,467 |
| 162. | 0.2% | Woodland / 1,085 |
| 165. | 0.2% | School Administrative District 30 / 1,876 |
| 165. | 0.2% | School Administrative District 27 / 6,683 |
| 167. | 0.1% | School Administrative District 67 / 6,652 |
| 168. | 0.1% | School Administrative District 46 / 6,645 |
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.
