| Rank | Median Age ▲ | School District / Population |
| 1. | 17.60 | Frenchboro / 79 |
| 2. | 21.50 | Castine / 1,425 |
| 3. | 21.60 | Regional School Unit 26 / 10,515 |
| 4. | 27.80 | Pleasant Point / 787 |
| 5. | 28.40 | Indian Township / 769 |
| 6. | 30.20 | Indian Island / 827 |
| 7. | 31.80 | Isle au Haut / 61 |
| 8. | 33.90 | Machias / 2,209 |
| 9. | 34.80 | Monhegan Plantation / 39 |
| 10. | 34.90 | Regional School Unit 34 / 10,069 |
| 11. | 35.40 | Biddeford / 21,303 |
| 12. | 35.60 | Waterville / 15,886 |
| 13. | 35.90 | Bangor / 32,800 |
| 14. | 36.10 | Portland / 66,317 |
| 15. | 37.40 | Cutler / 468 |
| 16. | 37.50 | Name N/A / 4,615 |
| 17. | 37.90 | Vassalboro / 4,337 |
| 18. | 38.60 | Gorham / 16,677 |
| 19. | 39.10 | Washington Unorganized Territory / 1,495 |
| 20. | 39.20 | School Administrative District 60 / 18,087 |
| 20. | 39.20 | Lewiston / 36,410 |
| 22. | 39.50 | School Administrative District 15 / 13,450 |
| 23. | 39.60 | Regional School Unit 14 / 21,760 |
| 24. | 39.80 | Sanford / 20,853 |
| 24. | 39.80 | Kennebec Unorganized Territory / 41 |
| 24. | 39.80 | Lisbon / 8,936 |
| 27. | 40.00 | Greenbush / 1,441 |
| 27. | 40.00 | Hermon / 5,598 |
| 27. | 40.00 | Regional School Unit 16 / 11,045 |
| 30. | 40.20 | Auburn / 22,960 |
| 31. | 40.30 | East Machias / 1,381 |
| 32. | 40.60 | South Portland / 25,154 |
| 33. | 40.80 | Nashville Plantation / 64 |
| 34. | 40.90 | School Administrative District 35 / 13,510 |
| 34. | 40.90 | Baring Plantation / 265 |
| 34. | 40.90 | Name N/A / 1,072 |
| 37. | 41.10 | School Administrative District 20 / 3,447 |
| 38. | 41.20 | School Administrative District 23 / 5,696 |
| 39. | 41.30 | Regional School Unit 04 / 10,540 |
| 40. | 41.40 | West Forks Plantation / 31 |
| 41. | 41.50 | School Administrative District 03 / 10,597 |
| 42. | 41.60 | Name N/A / 10,044 |
| 42. | 41.60 | School Administrative District 57 / 22,234 |
| 44. | 41.80 | Brewer / 9,391 |
| 45. | 42.00 | Westbrook / 17,662 |
| 45. | 42.00 | Drew Plantation / 46 |
| 47. | 42.10 | School Administrative District 22 / 13,773 |
| 48. | 42.20 | School Administrative District 52 / 12,096 |
| 49. | 42.30 | School Administrative District 64 / 7,974 |
| 50. | 42.40 | School Administrative District 42 / 2,252 |
| 51. | 42.50 | Regional School Unit 39 / 10,339 |
| 51. | 42.50 | School Administrative District 09 / 17,770 |
| 53. | 42.70 | Easton / 1,198 |
| 54. | 42.90 | Jonesboro / 495 |
| 54. | 42.90 | School Administrative District 49 / 14,602 |
| 54. | 42.90 | Appleton / 1,474 |
| 54. | 42.90 | Augusta / 18,898 |
| 58. | 43.00 | School Administrative District 53 / 6,297 |
| 58. | 43.00 | School Administrative District 67 / 6,389 |
| 60. | 43.10 | Name N/A / 1,959 |
| 60. | 43.10 | Tremont / 1,764 |
| 60. | 43.10 | School Administrative District 55 / 8,125 |
| 63. | 43.30 | School Administrative District 06 / 26,158 |
| 63. | 43.30 | Hope / 1,651 |
| 65. | 43.40 | School Administrative District 40 / 14,356 |
| 66. | 43.50 | Woodland / 1,193 |
| 67. | 43.60 | Marshfield / 462 |
| 68. | 43.70 | School Administrative District 01 / 12,992 |
| 69. | 43.90 | School Administrative District 51 / 10,963 |
| 70. | 44.00 | Regional School Unit 12 / 14,756 |
| 71. | 44.10 | Regional School Unit 05 / 13,441 |
| 72. | 44.20 | School Administrative District 76 / 302 |
| 73. | 44.30 | Dedham / 1,584 |
| 73. | 44.30 | Regional School Unit 25 / 8,333 |
| 75. | 44.40 | Whitneyville / 173 |
| 76. | 44.50 | Regional School Unit 19 / 14,878 |
| 76. | 44.50 | Regional School Unit 23 / 29,425 |
| 76. | 44.50 | Regional School Unit 18 / 19,051 |
| 76. | 44.50 | Scarborough / 19,209 |
| 80. | 44.70 | School Administrative District 59 / 5,326 |
| 81. | 44.80 | School Administrative District 63 / 6,385 |
| 82. | 44.90 | School Administrative District 45 / 2,323 |
| 83. | 45.00 | Regional School Unit 10 / 18,853 |
| 83. | 45.00 | Name N/A / 1,271 |
| 83. | 45.00 | School Administrative District 12 / 986 |
| 83. | 45.00 | Winthrop / 6,046 |
| 87. | 45.10 | Caratunk / 107 |
| 87. | 45.10 | School Administrative District 11 / 13,654 |
| 87. | 45.10 | Brunswick / 20,329 |
| 90. | 45.20 | Franklin Unorganized Territory / 809 |
| 90. | 45.20 | School Administrative District 61 / 14,598 |
| 90. | 45.20 | School Administrative District 74 / 5,395 |
| 90. | 45.20 | School Administrative District 54 / 17,008 |
| 90. | 45.20 | Winslow / 7,709 |
| 95. | 45.30 | Regional School Unit 20 / 17,022 |
| 95. | 45.30 | Milford / 3,054 |
| 97. | 45.40 | School Administrative District 17 / 24,133 |
| 98. | 45.60 | School Administrative District 29 / 7,911 |
| 98. | 45.60 | Yarmouth / 8,433 |
| 98. | 45.60 | Regional School Unit 01 / 15,974 |
| 98. | 45.60 | Surry / 1,666 |
| 102. | 45.70 | School Administrative District 44 / 5,676 |
| 102. | 45.70 | Name N/A / 527 |
| 104. | 45.80 | School Administrative District 08 / 1,327 |
| 104. | 45.80 | Regional School Unit 02 / 14,616 |
| 104. | 45.80 | School Administrative District 31 / 4,042 |
| 107. | 45.90 | Bar Harbor / 5,269 |
| 107. | 45.90 | Baileyville / 1,409 |
| 109. | 46.00 | School Administrative District 30 / 2,269 |
| 110. | 46.20 | Regional School Unit 24 / 18,942 |
| 110. | 46.20 | Whiting / 467 |
| 112. | 46.30 | Perry / 825 |
| 112. | 46.30 | Acton / 2,497 |
| 114. | 46.40 | School Administrative District 58 / 3,974 |
| 115. | 46.60 | School Administrative District 75 / 19,467 |
| 115. | 46.60 | Trenton / 1,555 |
| 115. | 46.60 | Greenville / 1,841 |
| 115. | 46.60 | Medway / 1,157 |
| 119. | 46.70 | Newcastle / 1,775 |
| 120. | 46.80 | Waite / 91 |
| 120. | 46.80 | School Administrative District 41 / 4,323 |
| 120. | 46.80 | Machiasport / 1,185 |
| 123. | 46.90 | Millinocket / 4,451 |
| 124. | 47.00 | Woodville / 212 |
| 125. | 47.10 | School Administrative District 70 / 3,752 |
| 125. | 47.10 | Shirley / 291 |
| 125. | 47.10 | Kittery / 9,573 |
| 125. | 47.10 | East Millinocket / 1,812 |
| 125. | 47.10 | Airline Community School District / 464 |
| 130. | 47.20 | School Administrative District 37 / 4,633 |
| 130. | 47.20 | Jefferson / 2,535 |
| 130. | 47.20 | Sedgwick / 1,137 |
| 133. | 47.30 | Nobleboro / 1,702 |
| 133. | 47.30 | Southwest Harbor / 1,976 |
| 133. | 47.30 | School Administrative District 46 / 6,518 |
| 133. | 47.30 | School Administrative District 27 / 6,478 |
| 137. | 47.40 | Regional School Unit 13 / 17,174 |
| 138. | 47.50 | School Administrative District 65 / 58 |
| 138. | 47.50 | Bremen / 894 |
| 138. | 47.50 | Reed Plantation / 179 |
| 141. | 47.60 | School Administrative District 32 / 2,185 |
| 141. | 47.60 | Regional School Unit 38 / 7,860 |
| 141. | 47.60 | Falmouth / 11,424 |
| 144. | 47.70 | Princeton / 803 |
| 145. | 47.80 | Calais / 3,063 |
| 145. | 47.80 | Oxford Unorganized Territory / 544 |
| 145. | 47.80 | Bridgewater / 618 |
| 148. | 47.90 | Regional School Unit 21 / 18,582 |
| 149. | 48.10 | Orrington / 3,721 |
| 150. | 48.20 | Pembroke / 881 |
| 150. | 48.20 | School Administrative District 68 / 6,681 |
| 152. | 48.40 | School Administrative District 72 / 8,110 |
| 152. | 48.40 | East Range Community School District / 229 |
| 152. | 48.40 | School Administrative District 24 / 2,775 |
| 155. | 48.50 | Great Salt Bay Community School District / 4,670 |
| 156. | 48.60 | School Administrative District 13 / 1,570 |
| 156. | 48.60 | School Administrative District 04 / 5,106 |
| 156. | 48.60 | Mount Desert Community School District / 11,183 |
| 159. | 48.80 | Name N/A / 60 |
| 159. | 48.80 | Name N/A / 13,571 |
| 159. | 48.80 | Name N/A / 31,148 |
| 159. | 48.80 | Name N/A / 5,321 |
| 163. | 48.90 | Crawford / 94 |
| 163. | 48.90 | Harmony / 816 |
| 165. | 49.50 | New Sweden / 611 |
| 165. | 49.50 | Damariscotta / 2,001 |
| 167. | 49.60 | Medford / 204 |
| 168. | 49.70 | Cape Elizabeth / 9,093 |
| 169. | 49.80 | Cranberry Isles / 123 |
| 169. | 49.80 | York / 12,661 |
| 171. | 49.90 | Edgecomb / 1,154 |
| 172. | 50.00 | School Administrative District 07 / 410 |
| 172. | 50.00 | Fayette / 1,143 |
| 172. | 50.00 | Lincolnville / 2,269 |
| 175. | 50.10 | Penobscot Unorganized Territory / 1,165 |
| 176. | 50.20 | School Administrative District 14 / 737 |
| 177. | 50.50 | Beals / 485 |
| 178. | 50.60 | Deer Isle-Stonington Community School District / 3,165 |
| 178. | 50.60 | Name N/A / 1,724 |
| 180. | 50.70 | Jonesport / 1,239 |
| 181. | 51.00 | Northfield / 174 |
| 182. | 51.10 | Georgetown / 1,050 |
| 183. | 51.50 | Deblois / 44 |
| 184. | 51.90 | School Administrative District 28 / 8,177 |
| 185. | 52.00 | Dennysville / 324 |
| 186. | 52.10 | Otis / 587 |
| 187. | 52.20 | Carrabassett Valley / 561 |
| 187. | 52.20 | Wells-Ogunquit Community School District / 10,924 |
| 189. | 52.30 | Robbinston / 533 |
| 190. | 52.40 | Lowell / 329 |
| 191. | 52.50 | Dennistown Plantation / 20 |
| 192. | 52.70 | Meddybemps / 121 |
| 193. | 52.80 | Madawaska / 3,965 |
| 194. | 53.00 | Grand Isle / 488 |
| 195. | 53.30 | Blue Hill / 2,680 |
| 195. | 53.30 | Carroll Plantation / 115 |
| 197. | 53.50 | Orient / 171 |
| 198. | 53.60 | Caswell / 246 |
| 198. | 53.60 | Name N/A / 1,843 |
| 200. | 53.70 | Penobscot / 1,153 |
| 201. | 53.80 | Vanceboro / 111 |
| 202. | 53.90 | School Administrative District 33 / 1,608 |
| 203. | 54.00 | Charlotte / 279 |
| 204. | 54.20 | Hancock Unorganized Territory / 177 |
| 205. | 54.30 | School Administrative District 19 / 1,485 |
| 205. | 54.30 | Westmanland / 89 |
| 207. | 55.00 | Coplin Plantation / 102 |
| 207. | 55.00 | Alexander / 437 |
| 209. | 55.10 | Brooksville / 885 |
| 209. | 55.10 | Boothbay-Boothbay Harbor Community School District / 5,113 |
| 211. | 55.30 | Kingsbury Plantation / 14 |
| 212. | 55.50 | Beaver Cove / 169 |
| 213. | 55.70 | Somerset Unorganized Territory / 647 |
| 214. | 55.90 | South Bristol / 952 |
| 215. | 56.00 | Bowerbank / 122 |
| 216. | 56.10 | Eastport / 1,414 |
| 217. | 56.20 | Macwahoc Plantation / 63 |
| 218. | 56.30 | Mount Desert / 2,174 |
| 218. | 56.30 | Cooper / 133 |
| 220. | 56.40 | Roque Bluffs / 262 |
| 221. | 56.60 | Willimantic / 105 |
| 222. | 56.80 | Seboeis Plantation / 51 |
| 223. | 57.00 | Aroostook Unorganized Territory / 1,572 |
| 224. | 57.10 | Brooklin / 858 |
| 224. | 57.10 | Gilead / 89 |
| 226. | 57.20 | Talmadge / 83 |
| 227. | 57.60 | Long Island / 239 |
| 228. | 58.50 | Pleasant Ridge Plantation / 88 |
| 229. | 58.70 | Islesboro / 643 |
| 230. | 58.90 | Bristol / 2,738 |
| 231. | 59.60 | Piscataquis Unorganized Territory / 722 |
| 232. | 60.80 | Bancroft / 70 |
| 233. | 61.30 | Chebeague Island / 431 |
| 234. | 61.70 | School Administration District 10 / 215 |
| 235. | 62.00 | Lake View Plantation / 66 |
| 235. | 62.00 | Beddington / 40 |
| 237. | 62.30 | Lincoln Plantation / 31 |
| 238. | 62.70 | The Forks Plantation / 24 |
| 239. | 63.10 | Upton / 61 |
| 240. | 63.40 | Lakeville / 113 |
| 241. | 63.50 | Great Lake Stream Plantation / 118 |
| 242. | 63.80 | Southport / 622 |
| 243. | 65.50 | Wesley / 77 |
| 244. | 67.10 | Highland Plantation / 45 |
Please note that we only rank locations with 'Median Age' data. The rank above might not be a complete list. Locations without 'Median Age' data are not listed.
