| Rank | Median Age ▲ | School District / Population |
| 1. | 21.70 | Oyster River Cooperative School District / 21,046 |
| 2. | 22.60 | Dresden School District / 11,260 |
| 2. | 22.60 | Hanover School District / 11,260 |
| 4. | 24.20 | Plymouth School District / 6,959 |
| 5. | 34.20 | Henniker School District / 4,839 |
| 6. | 34.30 | Somersworth School District / 11,782 |
| 6. | 34.30 | Windsor School District / 207 |
| 8. | 34.60 | Keene School District / 23,389 |
| 9. | 35.00 | John Stark Regional School District / 13,618 |
| 10. | 35.20 | Jaffrey-Rindge Cooperative School District / 11,463 |
| 11. | 35.60 | Dover School District / 30,021 |
| 12. | 35.70 | Weare School District / 8,779 |
| 13. | 36.20 | Manchester School District / 109,786 |
| 14. | 36.60 | Newmarket School District / 8,920 |
| 15. | 37.40 | Pemi-Baker Regional School District / 18,692 |
| 16. | 37.90 | Pembroke School District / 7,140 |
| 17. | 38.00 | Nashua School District / 86,823 |
| 18. | 38.20 | Barrington School District / 8,591 |
| 19. | 38.30 | Derry School District / 33,273 |
| 20. | 38.40 | Milton School District / 4,566 |
| 20. | 38.40 | Barnstead School District / 4,586 |
| 22. | 38.50 | Litchfield School District / 8,263 |
| 22. | 38.50 | Allenstown School District / 4,364 |
| 24. | 38.60 | Mascenic Regional School District / 7,525 |
| 25. | 38.80 | Rollinsford School District / 2,540 |
| 25. | 38.80 | Fremont School District / 4,268 |
| 25. | 38.80 | Pittsfield School District / 4,104 |
| 28. | 38.90 | Raymond School District / 10,165 |
| 28. | 38.90 | Franklin School District / 8,499 |
| 30. | 39.00 | Chatham School District / 446 |
| 30. | 39.00 | Lebanon School District / 13,275 |
| 32. | 39.10 | Hillsboro-Deering Cooperative School District / 7,845 |
| 32. | 39.10 | Goffstown School District / 17,668 |
| 34. | 39.50 | Milford School District / 15,079 |
| 34. | 39.50 | Hooksett School District / 13,469 |
| 36. | 39.70 | New Boston School District / 5,293 |
| 37. | 39.80 | Campton School District / 3,302 |
| 38. | 39.90 | Rivendell Interstate School District / 1,451 |
| 38. | 39.90 | Londonderry School District / 24,189 |
| 40. | 40.10 | Pelham School District / 12,850 |
| 41. | 40.40 | Hudson School District / 24,484 |
| 42. | 40.50 | Gilmanton School District / 3,761 |
| 43. | 40.70 | Nottingham School District / 4,760 |
| 43. | 40.70 | Concord School District / 37,533 |
| 45. | 40.80 | Ashland School District / 1,653 |
| 45. | 40.80 | Merrimack Valley School District / 17,548 |
| 47. | 40.90 | Middleton School District / 1,532 |
| 47. | 40.90 | Brookline School District / 4,979 |
| 49. | 41.00 | Portsmouth School District / 21,140 |
| 50. | 41.10 | Shaker Regional School District / 9,764 |
| 50. | 41.10 | Sanborn Regional School District / 10,689 |
| 52. | 41.30 | Auburn School District / 4,993 |
| 53. | 41.50 | Farmington School District / 6,768 |
| 53. | 41.50 | Brentwood School District / 4,455 |
| 53. | 41.50 | Claremont School District / 13,304 |
| 56. | 41.70 | Northumberland School District / 2,247 |
| 57. | 41.80 | Mason School District / 1,377 |
| 57. | 41.80 | Merrimack School District / 25,540 |
| 59. | 41.90 | Epping School District / 6,434 |
| 60. | 42.00 | Chester School District / 4,759 |
| 61. | 42.10 | Deerfield School District / 4,278 |
| 61. | 42.10 | Timberlane Regional School District / 24,793 |
| 63. | 42.40 | Salem School District / 28,824 |
| 63. | 42.40 | Prospect Mountain High School Joint Maintenance Agreement District / 9,826 |
| 65. | 42.50 | Bedford School District / 21,180 |
| 65. | 42.50 | Fall Mountain Regional School District / 12,217 |
| 65. | 42.50 | Mont Vernon School District / 2,401 |
| 68. | 42.60 | Rochester School District / 29,830 |
| 68. | 42.60 | Newport School District / 6,498 |
| 70. | 42.70 | Hollis-Brookline Cooperative School District / 12,658 |
| 70. | 42.70 | Winnisquam Regional School District / 11,392 |
| 72. | 42.80 | Name N/A / 363,140 |
| 72. | 42.80 | Newfields School District / 1,671 |
| 72. | 42.80 | Windham School District / 13,603 |
| 75. | 43.00 | Strafford School District / 3,992 |
| 76. | 43.10 | Hill School District / 1,210 |
| 76. | 43.10 | Winchester School District / 4,332 |
| 78. | 43.40 | Souhegan Cooperative School District / 13,602 |
| 79. | 43.50 | Amherst School District / 11,201 |
| 79. | 43.50 | Epsom School District / 4,572 |
| 81. | 43.60 | Monadnock Regional School District / 14,368 |
| 81. | 43.60 | Chichester School District / 2,532 |
| 83. | 43.80 | Warren School District / 769 |
| 84. | 43.90 | Lincoln-Woodstock School District / 2,535 |
| 84. | 43.90 | Exeter Regional Cooperative School District / 32,302 |
| 86. | 44.10 | Stratham School District / 7,238 |
| 87. | 44.20 | Bethlehem School District / 2,515 |
| 87. | 44.20 | Hollis School District / 7,679 |
| 87. | 44.20 | Marlow School District / 890 |
| 90. | 44.30 | Benton School District / 442 |
| 91. | 44.40 | Hampton Falls School District / 2,287 |
| 91. | 44.40 | Gorham Randolph Shelburne Cooperative School District / 3,622 |
| 93. | 44.50 | Berlin School District / 10,009 |
| 93. | 44.50 | Wilton-Lyndeboro School District / 5,169 |
| 93. | 44.50 | Plainfield School District / 2,570 |
| 96. | 44.60 | Haverhill Cooperative School District / 4,673 |
| 96. | 44.60 | Dunbarton School District / 2,756 |
| 96. | 44.60 | Kensington School District / 2,138 |
| 96. | 44.60 | Greenland School District / 3,571 |
| 100. | 44.70 | Exeter School District / 14,371 |
| 100. | 44.70 | Laconia School District / 16,062 |
| 102. | 44.80 | Thornton School District / 2,303 |
| 102. | 44.80 | Marlborough School District / 1,977 |
| 102. | 44.80 | Conway School District / 10,063 |
| 105. | 44.90 | Newfound Area School District / 10,682 |
| 106. | 45.00 | Lisbon Regional School District / 2,218 |
| 106. | 45.00 | Cornish School District / 1,665 |
| 106. | 45.00 | Goshen-Lempster Cooperative School District / 1,979 |
| 106. | 45.00 | Mascoma Valley Regional School District / 10,524 |
| 110. | 45.10 | Hopkinton School District / 5,608 |
| 111. | 45.20 | Lyme School District / 1,857 |
| 111. | 45.20 | Bow School District / 7,571 |
| 113. | 45.30 | Kearsarge Regional School District / 15,363 |
| 114. | 45.40 | Albany School District / 875 |
| 114. | 45.40 | Candia School District / 3,921 |
| 114. | 45.40 | Northwood School District / 4,244 |
| 117. | 45.50 | Hinsdale School District / 4,046 |
| 118. | 45.80 | East Kingston School District / 2,429 |
| 118. | 45.80 | White Mountain Regional School District / 8,169 |
| 118. | 45.80 | Seabrook School District / 8,703 |
| 121. | 46.00 | Hampstead School District / 8,538 |
| 122. | 46.10 | Rumney School District / 1,757 |
| 122. | 46.10 | Westmoreland School District / 2,183 |
| 124. | 46.30 | Contoocook Valley School District / 18,682 |
| 125. | 46.40 | Alton School District / 5,240 |
| 126. | 46.50 | Columbia School District / 694 |
| 127. | 46.70 | Littleton School District / 5,944 |
| 128. | 46.80 | Governor Wentworth Regional School District / 17,792 |
| 129. | 46.90 | Stoddard School District / 1,045 |
| 130. | 47.20 | Sunapee School District / 3,349 |
| 131. | 47.40 | Winnacunnet Cooperative School District / 30,502 |
| 131. | 47.40 | Piermont School District / 827 |
| 131. | 47.40 | Grantham School District / 2,936 |
| 131. | 47.40 | Stewartstown School District / 1,014 |
| 135. | 47.50 | Surry School District / 821 |
| 136. | 47.60 | Wakefield School District / 5,044 |
| 136. | 47.60 | Errol School District / 296 |
| 138. | 47.80 | Dummer School District / 443 |
| 138. | 47.80 | Croydon School District / 615 |
| 138. | 47.80 | Hampton School District / 15,189 |
| 141. | 48.20 | Bartlett School District / 2,793 |
| 141. | 48.20 | Stark School District / 607 |
| 143. | 48.40 | Profile School District / 4,614 |
| 143. | 48.40 | Jackson School District / 990 |
| 145. | 48.60 | Andover School District / 2,503 |
| 146. | 48.80 | Madison School District / 2,496 |
| 146. | 48.80 | Milan School District / 1,323 |
| 148. | 48.90 | Rye School District / 5,310 |
| 149. | 49.10 | Stratford School District / 814 |
| 149. | 49.10 | Tamworth School District / 2,854 |
| 151. | 49.20 | Gilford School District / 7,140 |
| 152. | 49.40 | Inter-Lakes School District / 8,518 |
| 152. | 49.40 | South Hampton School District / 747 |
| 154. | 49.70 | Chesterfield School District / 3,617 |
| 155. | 49.80 | Unity School District / 1,590 |
| 155. | 49.80 | Monroe School District / 948 |
| 155. | 49.80 | Ellsworth School District / 62 |
| 158. | 50.10 | Landaff School District / 475 |
| 159. | 50.30 | Hart's Location School District / 33 |
| 159. | 50.30 | North Hampton School District / 4,323 |
| 159. | 50.30 | Wentworth School District / 916 |
| 162. | 51.00 | Harrisville School District / 923 |
| 163. | 51.30 | Washington School District / 1,071 |
| 164. | 51.40 | Holderness School District / 1,802 |
| 165. | 51.70 | Nelson School District / 729 |
| 166. | 52.30 | Colebrook School District / 2,173 |
| 166. | 52.30 | Newington School District / 659 |
| 168. | 52.70 | Lafayette Regional School District / 2,099 |
| 169. | 53.00 | Bath School District / 871 |
| 170. | 54.50 | Clarksville School District / 336 |
| 171. | 55.30 | New Castle School District / 990 |
| 172. | 55.40 | Freedom School District / 1,197 |
| 173. | 56.00 | Moultonborough School District / 4,078 |
| 174. | 57.20 | Waterville Valley School District / 318 |
| 175. | 58.60 | Eaton School District / 393 |
| 176. | 59.40 | Pittsburg School District / 998 |
| 177. | 65.10 | Coos County School District / 237 |
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.
*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.
