| Rank | Foreign Born without U.S. Citizenship Percentage ▼ | School District / Population |
| 1. | 6.2% | Portland / 66,138 |
| 2. | 6.1% | Bar Harbor / 5,194 |
| 3. | 5.4% | Vanceboro / 129 |
| 4. | 4.9% | Carrabassett Valley / 470 |
| 5. | 4.1% | Caswell / 340 |
| 6. | 4.0% | Mount Desert Community School District / 10,039 |
| 7. | 3.9% | South Portland / 24,804 |
| 8. | 3.7% | Alexander / 350 |
| 9. | 3.7% | Southwest Harbor / 1,725 |
| 10. | 3.6% | Westbrook / 17,314 |
| 11. | 3.5% | Machias / 2,416 |
| 12. | 3.5% | School Administrative District 53 / 6,142 |
| 13. | 3.4% | Trenton / 1,453 |
| 14. | 3.3% | Waterville / 15,777 |
| 15. | 3.2% | Franklin Unorganized Territory / 865 |
| 16. | 3.2% | Baileyville / 1,554 |
| 17. | 3.2% | Sandy River Plantation / 94 |
| 18. | 3.1% | Bowerbank / 98 |
| 19. | 3.0% | School Administrative District 24 / 2,987 |
| 19. | 3.0% | Grand Isle / 532 |
| 21. | 3.0% | Name N/A / 14,506 |
| 21. | 3.0% | Lake View Plantation / 100 |
| 23. | 3.0% | Edgecomb / 1,143 |
| 24. | 2.9% | East Machias / 1,344 |
| 25. | 2.8% | Regional School Unit 34 / 10,108 |
| 26. | 2.8% | Lewiston / 36,684 |
| 27. | 2.5% | Winthrop / 6,149 |
| 28. | 2.5% | School Administrative District 20 / 3,513 |
| 29. | 2.5% | School Administrative District 29 / 8,208 |
| 30. | 2.4% | School Administrative District 37 / 5,522 |
| 31. | 2.3% | Regional School Unit 26 / 16,708 |
| 32. | 2.3% | Easton / 1,123 |
| 33. | 2.3% | Scarborough / 18,637 |
| 34. | 2.2% | Baring Plantation / 316 |
| 34. | 2.2% | Westmanland / 90 |
| 36. | 2.1% | Gilead / 145 |
| 36. | 2.1% | Wells-Ogunquit Community School District / 10,763 |
| 38. | 2.1% | Madawaska / 4,141 |
| 39. | 2.0% | School Administrative District 70 / 3,645 |
| 40. | 2.0% | Rangeley / 1,177 |
| 41. | 1.9% | School Administrative District 01 / 12,845 |
| 42. | 1.9% | Regional School Unit 39 / 10,958 |
| 43. | 1.9% | Auburn / 23,279 |
| 44. | 1.9% | Brooklin / 1,022 |
| 45. | 1.7% | Falmouth / 11,086 |
| 46. | 1.7% | Jonesport / 1,338 |
| 47. | 1.7% | Calais / 3,192 |
| 48. | 1.6% | Machiasport / 1,043 |
| 49. | 1.6% | Bangor / 32,899 |
| 50. | 1.6% | Winslow / 7,823 |
| 50. | 1.6% | Charlotte / 311 |
| 52. | 1.6% | Penobscot / 1,377 |
| 52. | 1.6% | Biddeford / 21,490 |
| 54. | 1.6% | School Administrative District 23 / 5,475 |
| 55. | 1.6% | Indian Township / 767 |
| 56. | 1.5% | Islesboro / 649 |
| 57. | 1.5% | Piscataquis Unorganized Territory / 936 |
| 58. | 1.5% | Newcastle / 1,576 |
| 59. | 1.5% | School Administrative District 13 / 1,314 |
| 59. | 1.5% | Aroostook Unorganized Territory / 1,513 |
| 59. | 1.5% | Brunswick / 20,557 |
| 62. | 1.4% | Regional School Unit 21 / 18,423 |
| 62. | 1.4% | School Administrative District 61 / 14,134 |
| 64. | 1.4% | School Administrative District 27 / 6,683 |
| 65. | 1.4% | Brooksville / 1,005 |
| 66. | 1.4% | Sanford / 21,035 |
| 67. | 1.4% | Kittery / 9,606 |
| 68. | 1.3% | Medford / 224 |
| 69. | 1.3% | School Administrative District 22 / 12,468 |
| 69. | 1.3% | South Bristol / 976 |
| 69. | 1.3% | Deer Isle-Stonington Community School District / 3,084 |
| 72. | 1.3% | Airline Community School District / 458 |
| 72. | 1.3% | Milford / 3,055 |
| 72. | 1.3% | Hope / 1,521 |
| 75. | 1.3% | School Administrative District 07 / 461 |
| 76. | 1.3% | School Administrative District 42 / 2,350 |
| 76. | 1.3% | School Administrative District 45 / 2,504 |
| 78. | 1.3% | School Administrative District 19 / 1,423 |
| 78. | 1.3% | Cape Elizabeth / 9,056 |
| 80. | 1.3% | Greenville / 1,606 |
| 80. | 1.3% | Regional School Unit 14 / 21,108 |
| 82. | 1.2% | School Administrative District 25 / 2,761 |
| 82. | 1.2% | Regional School Unit 38 / 7,458 |
| 84. | 1.2% | Regional School Unit 01 / 16,704 |
| 84. | 1.2% | Penobscot Unorganized Territory / 1,562 |
| 84. | 1.2% | Pembroke / 980 |
| 87. | 1.2% | School Administrative District 09 / 18,036 |
| 88. | 1.2% | School Administrative District 28 / 8,373 |
| 89. | 1.2% | Regional School Unit 23 / 29,367 |
| 90. | 1.2% | Long Island / 261 |
| 91. | 1.1% | Appleton / 1,437 |
| 92. | 1.1% | School Administrative District 60 / 17,650 |
| 92. | 1.1% | Blue Hill / 2,649 |
| 92. | 1.1% | Fayette / 1,281 |
| 95. | 1.1% | School Administrative District 36 / 5,322 |
| 96. | 1.1% | Perry / 943 |
| 97. | 1.1% | Orrington / 3,710 |
| 98. | 1.0% | School Administrative District 52 / 12,057 |
| 99. | 1.0% | Robbinston / 592 |
| 100. | 1.0% | School Administrative District 63 / 6,002 |
| 100. | 1.0% | Princeton / 898 |
| 100. | 1.0% | Dennysville / 399 |
| 103. | 1.0% | School Administrative District 04 / 4,994 |
| 104. | 1.0% | Augusta / 19,150 |
| 105. | 1.0% | Yarmouth / 8,390 |
| 106. | 0.9% | Boothbay-Boothbay Harbor Community School District / 5,544 |
| 107. | 0.9% | Gorham / 16,065 |
| 108. | 0.9% | Nobleboro / 1,647 |
| 109. | 0.9% | Acton / 2,001 |
| 110. | 0.9% | Regional School Unit 13 / 17,358 |
| 111. | 0.9% | School Administrative District 17 / 23,682 |
| 112. | 0.9% | School Administrative District 68 / 7,014 |
| 113. | 0.8% | Hermon / 5,244 |
| 114. | 0.8% | School Administrative District 57 / 21,609 |
| 114. | 0.8% | Castine / 1,483 |
| 114. | 0.8% | School Administrative District 55 / 8,348 |
| 114. | 0.8% | School Administrative District 72 / 8,060 |
| 118. | 0.8% | Roque Bluffs / 251 |
| 119. | 0.8% | Great Salt Bay Community School District / 4,467 |
| 120. | 0.8% | York / 12,720 |
| 121. | 0.8% | Mount Desert / 1,708 |
| 122. | 0.8% | School Administrative District 40 / 14,808 |
| 122. | 0.8% | Dedham / 2,139 |
| 124. | 0.7% | Southport / 541 |
| 124. | 0.7% | Woodland / 1,085 |
| 126. | 0.7% | School Administrative District 46 / 6,645 |
| 127. | 0.7% | Regional School Unit 04 / 10,221 |
| 127. | 0.7% | Regional School Unit 19 / 14,947 |
| 129. | 0.7% | Regional School Unit 05 / 13,211 |
| 130. | 0.7% | Regional School Unit 16 / 10,969 |
| 131. | 0.6% | Regional School Unit 24 / 19,161 |
| 132. | 0.6% | Regional School Unit 18 / 18,880 |
| 132. | 0.6% | School Administrative District 64 / 7,993 |
| 134. | 0.6% | Millinocket / 4,655 |
| 135. | 0.6% | Jonesboro / 653 |
| 136. | 0.6% | Brewer / 9,433 |
| 136. | 0.6% | Washington Unorganized Territory / 1,233 |
| 138. | 0.6% | Georgetown / 712 |
| 139. | 0.6% | School Administrative District 75 / 19,689 |
| 140. | 0.5% | Damariscotta / 2,216 |
| 141. | 0.5% | School Administrative District 59 / 6,441 |
| 141. | 0.5% | School Administrative District 12 / 949 |
| 143. | 0.5% | School Administrative District 44 / 6,036 |
| 144. | 0.5% | School Administrative District 33 / 1,877 |
| 144. | 0.5% | Regional School Unit 12 / 14,914 |
| 146. | 0.5% | School Administrative District 58 / 4,823 |
| 147. | 0.5% | Lowell / 223 |
| 148. | 0.4% | School Administrative District 51 / 10,679 |
| 149. | 0.4% | Regional School Unit 20 / 18,312 |
| 150. | 0.4% | Marshfield / 494 |
| 151. | 0.4% | School Administrative District 41 / 4,842 |
| 151. | 0.4% | School Administrative District 06 / 25,893 |
| 151. | 0.4% | School Administrative District 31 / 3,830 |
| 154. | 0.4% | Whiting / 528 |
| 155. | 0.4% | Lisbon / 9,092 |
| 156. | 0.4% | School Administrative District 35 / 13,431 |
| 156. | 0.4% | Bristol / 2,766 |
| 158. | 0.4% | Tremont / 1,412 |
| 158. | 0.4% | Eastport / 1,425 |
| 160. | 0.3% | Jefferson / 2,529 |
| 161. | 0.3% | Regional School Unit 02 / 14,748 |
| 162. | 0.3% | School Administrative District 67 / 6,652 |
| 162. | 0.3% | Regional School Unit 25 / 8,461 |
| 164. | 0.3% | School Administrative District 54 / 17,286 |
| 165. | 0.3% | Lincolnville / 1,846 |
| 165. | 0.3% | Regional School Unit 10 / 18,964 |
| 165. | 0.3% | School Administrative District 11 / 13,922 |
| 165. | 0.3% | School Administrative District 49 / 14,919 |
| 169. | 0.3% | Southern Aroostook Community School District / 3,049 |
| 169. | 0.3% | School Administrative District 74 / 5,346 |
| 171. | 0.3% | Medway / 1,223 |
| 172. | 0.2% | School Administrative District 15 / 13,059 |
| 172. | 0.2% | School Administrative District 03 / 10,528 |
| 174. | 0.2% | Greenbush / 1,382 |
Please note that we only rank locations with 'Foreign Born without U.S. Citizenship Percentage' data. The rank above might not be a complete list. Locations without 'Foreign Born without U.S. Citizenship 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.
