| Rank | Median Age ▲ | School District / Population |
| 1. | 21.10 | Mansfield School District / 24,905 |
| 2. | 22.00 | Regional High School District 19 / 35,507 |
| 3. | 24.60 | Willington School District / 6,163 |
| 4. | 29.20 | New Haven School District / 123,628 |
| 5. | 29.30 | New London School District / 26,123 |
| 6. | 29.80 | Hartford School District / 123,925 |
| 7. | 31.10 | Windham School District / 23,671 |
| 8. | 32.40 | Bridgeport School District / 136,715 |
| 9. | 33.80 | New Britain School District / 70,548 |
| 10. | 34.30 | Waterbury School District / 106,909 |
| 11. | 34.60 | Ashford School District / 4,439 |
| 12. | 34.80 | Groton School District / 40,114 |
| 13. | 36.00 | Ledyard School District / 15,159 |
| 13. | 36.00 | Naugatuck School District / 31,827 |
| 15. | 36.20 | Danbury School District / 78,708 |
| 16. | 36.30 | Ansonia School District / 18,530 |
| 17. | 36.40 | Norwich School District / 36,596 |
| 17. | 36.40 | Middletown School District / 47,702 |
| 19. | 36.60 | Stamford School District / 118,787 |
| 19. | 36.60 | Plainfield School District / 15,389 |
| 21. | 37.20 | Pomfret School District / 4,145 |
| 22. | 37.70 | Norwalk School District / 83,219 |
| 22. | 37.70 | Derby School District / 12,396 |
| 22. | 37.70 | Manchester School District / 55,740 |
| 25. | 37.80 | Darien School District / 20,176 |
| 25. | 37.80 | East Hartford School District / 48,627 |
| 27. | 37.90 | Fairfield School District / 57,229 |
| 27. | 37.90 | Meriden School District / 59,078 |
| 29. | 38.10 | Sterling School District / 3,671 |
| 30. | 38.20 | West Haven School District / 52,727 |
| 30. | 38.20 | Putnam School District / 9,272 |
| 30. | 38.20 | Brooklyn School District / 7,829 |
| 33. | 38.40 | Chaplin School District / 2,515 |
| 34. | 38.50 | Killingly School District / 17,608 |
| 35. | 38.60 | Colchester School District / 15,536 |
| 35. | 38.60 | Cheshire School District / 28,878 |
| 37. | 38.70 | Hamden School District / 57,863 |
| 38. | 38.90 | New Milford School District / 28,443 |
| 39. | 39.00 | Hebron School District / 9,231 |
| 40. | 39.10 | Tolland School District / 14,653 |
| 41. | 39.30 | Scotland School District / 1,888 |
| 42. | 39.40 | Ellington School District / 14,448 |
| 43. | 39.50 | Enfield School District / 45,060 |
| 44. | 39.60 | Bethel School District / 18,441 |
| 44. | 39.60 | Bristol School District / 60,869 |
| 46. | 39.70 | Vernon School District / 29,734 |
| 47. | 39.90 | Plymouth School District / 12,039 |
| 48. | 40.00 | Wallingford School District / 44,601 |
| 48. | 40.00 | Regional School District 16 / 15,019 |
| 50. | 40.10 | New Fairfield School District / 14,043 |
| 50. | 40.10 | East Windsor School District / 10,656 |
| 50. | 40.10 | Regional High School District 11 / 6,406 |
| 50. | 40.10 | Deep River School District / 4,680 |
| 54. | 40.20 | Montville School District / 19,793 |
| 55. | 40.30 | Regional High School District 08 / 18,791 |
| 56. | 40.40 | Lebanon School District / 7,360 |
| 56. | 40.40 | Sprague School District / 2,999 |
| 58. | 40.60 | Winchester School District / 10,765 |
| 58. | 40.60 | Milford School District / 55,293 |
| 60. | 40.80 | Newtown School District / 26,679 |
| 60. | 40.80 | Name N/A / 213,921 |
| 60. | 40.80 | Brookfield School District / 16,372 |
| 60. | 40.80 | Monroe School District / 19,340 |
| 60. | 40.80 | Simsbury School District / 23,545 |
| 60. | 40.80 | Regional School District 13 / 11,625 |
| 66. | 40.90 | Glastonbury School District / 33,033 |
| 66. | 40.90 | East Haven School District / 28,539 |
| 68. | 41.00 | Griswold School District / 11,389 |
| 68. | 41.00 | Wilton School District / 17,689 |
| 68. | 41.00 | Voluntown School District / 2,629 |
| 68. | 41.00 | Salem School District / 4,110 |
| 68. | 41.00 | Regional School District 10 / 14,648 |
| 73. | 41.10 | Ridgefield School District / 23,905 |
| 74. | 41.20 | Wolcott School District / 16,297 |
| 75. | 41.30 | Coventry School District / 12,197 |
| 75. | 41.30 | Windsor School District / 28,747 |
| 77. | 41.40 | Oxford School District / 12,368 |
| 77. | 41.40 | Plainville School District / 17,210 |
| 77. | 41.40 | Marlborough School District / 6,292 |
| 77. | 41.40 | Somers School District / 10,980 |
| 77. | 41.40 | Stratford School District / 48,930 |
| 82. | 41.50 | Weston School District / 10,137 |
| 82. | 41.50 | Torrington School District / 35,495 |
| 82. | 41.50 | Easton School District / 7,371 |
| 82. | 41.50 | Suffield School District / 15,027 |
| 86. | 41.60 | New Canaan School District / 19,805 |
| 87. | 41.70 | East Hampton School District / 12,507 |
| 87. | 41.70 | Canton School District / 10,008 |
| 87. | 41.70 | South Windsor School District / 25,915 |
| 87. | 41.70 | Thomaston School District / 7,826 |
| 87. | 41.70 | Windsor Locks School District / 12,422 |
| 92. | 41.80 | Seymour School District / 16,163 |
| 92. | 41.80 | Portland School District / 9,536 |
| 92. | 41.80 | West Hartford School District / 60,573 |
| 95. | 41.90 | East Haddam School District / 8,845 |
| 95. | 41.90 | Woodstock School District / 8,133 |
| 95. | 41.90 | Farmington School District / 24,935 |
| 98. | 42.00 | Colebrook School District / 1,541 |
| 99. | 42.10 | North Branford School District / 14,352 |
| 99. | 42.10 | Newington School District / 29,530 |
| 99. | 42.10 | Andover School District / 3,268 |
| 99. | 42.10 | Canterbury School District / 5,077 |
| 103. | 42.20 | Franklin School District / 1,815 |
| 103. | 42.20 | Southington School District / 42,077 |
| 105. | 42.30 | Bozrah School District / 2,414 |
| 105. | 42.30 | Barkhamsted School District / 3,671 |
| 107. | 42.40 | New Hartford School District / 6,722 |
| 108. | 42.50 | Regional High School District 07 / 13,657 |
| 108. | 42.50 | Lisbon School District / 4,229 |
| 108. | 42.50 | Regional School District 17 / 14,238 |
| 111. | 42.60 | Berlin School District / 20,059 |
| 111. | 42.60 | East Lyme School District / 18,819 |
| 113. | 42.70 | North Stonington School District / 5,243 |
| 113. | 42.70 | Eastford School District / 1,693 |
| 113. | 42.70 | Westport School District / 26,443 |
| 113. | 42.70 | Greenwich School District / 61,672 |
| 117. | 42.80 | Hampton School District / 2,003 |
| 118. | 42.90 | Watertown School District / 22,141 |
| 118. | 42.90 | Cromwell School District / 13,559 |
| 120. | 43.00 | Stafford School District / 11,802 |
| 120. | 43.00 | Clinton School District / 13,579 |
| 122. | 43.10 | Trumbull School District / 34,671 |
| 122. | 43.10 | East Granby School District / 5,187 |
| 122. | 43.10 | Thompson School District / 9,246 |
| 122. | 43.10 | Granby School District / 11,132 |
| 122. | 43.10 | Hartland School District / 1,993 |
| 127. | 43.40 | North Haven School District / 23,861 |
| 128. | 43.50 | Regional School District 14 / 13,233 |
| 128. | 43.50 | Shelton School District / 39,669 |
| 130. | 43.70 | Regional High School District 09 / 16,128 |
| 131. | 43.80 | Rocky Hill School District / 18,731 |
| 132. | 43.90 | Avon School District / 17,223 |
| 133. | 44.00 | Orange School District / 13,780 |
| 134. | 44.10 | Norfolk School District / 1,723 |
| 134. | 44.10 | Wethersfield School District / 25,788 |
| 136. | 44.20 | Regional High School District 04 / 15,272 |
| 136. | 44.20 | Bolton School District / 5,135 |
| 138. | 44.30 | Bethany School District / 5,510 |
| 139. | 44.50 | Stonington School District / 18,415 |
| 139. | 44.50 | Columbia School District / 5,343 |
| 141. | 44.60 | Madison School District / 18,726 |
| 142. | 44.80 | Preston School District / 4,919 |
| 142. | 44.80 | Regional High School District 05 / 28,477 |
| 142. | 44.80 | Branford School District / 28,916 |
| 142. | 44.80 | Waterford School District / 18,866 |
| 146. | 45.00 | Chester School District / 3,829 |
| 146. | 45.00 | North Canaan School District / 3,363 |
| 146. | 45.00 | Redding School District / 8,757 |
| 149. | 45.10 | Regional School District 06 / 7,032 |
| 150. | 45.30 | Guilford School District / 22,284 |
| 151. | 45.70 | Bloomfield School District / 20,468 |
| 151. | 45.70 | Westbrook School District / 6,624 |
| 153. | 45.90 | Sherman School District / 4,085 |
| 154. | 46.00 | Woodbridge School District / 9,187 |
| 155. | 46.20 | Litchfield School District / 8,667 |
| 156. | 46.30 | Sharon School District / 3,021 |
| 157. | 46.50 | Essex School District / 6,763 |
| 158. | 46.90 | Regional School District 12 / 7,629 |
| 159. | 47.30 | Regional School District 18 / 9,655 |
| 160. | 47.60 | Regional School District 15 / 26,800 |
| 161. | 47.70 | Canaan School District / 1,140 |
| 161. | 47.70 | Cornwall School District / 1,459 |
| 163. | 48.60 | Old Saybrook School District / 10,517 |
| 164. | 49.00 | Regional High School District 01 / 15,925 |
| 165. | 49.20 | Union School District / 667 |
| 166. | 51.00 | Kent School District / 2,947 |
| 167. | 53.50 | Salisbury School District / 3,995 |
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.
