| Rank | Percentage of Population Age 5 or Less ▼ | School District / Population |
| 1. | 8.0% | Darien School District / 20,732 |
| 2. | 7.6% | Hartford School District / 124,775 |
| 3. | 7.4% | Bridgeport School District / 144,229 |
| 4. | 7.4% | Groton School District / 40,115 |
| 5. | 7.2% | Waterbury School District / 110,366 |
| 6. | 7.1% | New Haven School District / 129,779 |
| 7. | 6.9% | New Britain School District / 73,206 |
| 8. | 6.9% | Norwalk School District / 85,603 |
| 9. | 6.8% | Stamford School District / 122,643 |
| 10. | 6.7% | Sprague School District / 2,984 |
| 11. | 6.7% | Meriden School District / 60,868 |
| 12. | 6.7% | Danbury School District / 80,893 |
| 13. | 6.5% | East Hartford School District / 51,252 |
| 14. | 6.4% | Manchester School District / 58,241 |
| 15. | 6.4% | Windham School District / 25,268 |
| 16. | 6.3% | Norwich School District / 40,493 |
| 17. | 6.2% | Derby School District / 12,902 |
| 18. | 6.2% | Sterling School District / 3,830 |
| 19. | 6.2% | Ansonia School District / 19,249 |
| 20. | 6.1% | Greenwich School District / 61,171 |
| 21. | 6.0% | New London School District / 27,620 |
| 22. | 5.9% | Marlborough School District / 6,404 |
| 23. | 5.9% | Killingly School District / 17,370 |
| 23. | 5.9% | Naugatuck School District / 31,862 |
| 25. | 5.9% | Fairfield School District / 59,404 |
| 26. | 5.9% | Ellington School District / 15,602 |
| 26. | 5.9% | West Haven School District / 55,564 |
| 26. | 5.9% | Wilton School District / 18,062 |
| 29. | 5.9% | East Hampton School District / 12,959 |
| 30. | 5.9% | Putnam School District / 9,584 |
| 31. | 5.8% | Plainfield School District / 15,405 |
| 32. | 5.8% | New Canaan School District / 19,738 |
| 33. | 5.7% | Torrington School District / 36,383 |
| 34. | 5.7% | Vernon School District / 29,179 |
| 35. | 5.7% | Griswold School District / 11,951 |
| 35. | 5.7% | Ledyard School District / 15,051 |
| 37. | 5.7% | Bristol School District / 60,477 |
| 37. | 5.7% | East Granby School District / 5,148 |
| 39. | 5.6% | Colchester School District / 16,068 |
| 40. | 5.5% | New Milford School District / 28,142 |
| 41. | 5.5% | West Hartford School District / 63,268 |
| 41. | 5.5% | Westport School District / 26,391 |
| 43. | 5.5% | Chaplin School District / 2,305 |
| 44. | 5.5% | Bethel School District / 18,584 |
| 45. | 5.5% | Ridgefield School District / 24,638 |
| 46. | 5.4% | Canton School District / 10,292 |
| 47. | 5.4% | Coventry School District / 12,435 |
| 48. | 5.4% | Oxford School District / 12,683 |
| 48. | 5.4% | Stratford School District / 51,384 |
| 50. | 5.4% | Voluntown School District / 2,603 |
| 51. | 5.4% | Middletown School District / 47,648 |
| 52. | 5.4% | Ashford School District / 4,317 |
| 53. | 5.3% | Stafford School District / 12,087 |
| 54. | 5.3% | Salem School District / 4,151 |
| 55. | 5.3% | Tolland School District / 15,052 |
| 56. | 5.2% | Clinton School District / 13,260 |
| 56. | 5.2% | Trumbull School District / 36,018 |
| 58. | 5.2% | Hamden School District / 60,960 |
| 59. | 5.2% | Regional High School District 08 / 19,393 |
| 59. | 5.2% | Seymour School District / 16,540 |
| 61. | 5.2% | Eastford School District / 1,749 |
| 62. | 5.1% | Glastonbury School District / 34,427 |
| 63. | 5.1% | Portland School District / 9,508 |
| 64. | 5.1% | Cromwell School District / 14,005 |
| 65. | 5.1% | East Windsor School District / 11,162 |
| 66. | 5.1% | Southington School District / 43,069 |
| 67. | 5.0% | Regional High School District 11 / 5,894 |
| 67. | 5.0% | Weston School District / 10,179 |
| 69. | 5.0% | Winchester School District / 11,242 |
| 70. | 5.0% | Hartland School District / 2,114 |
| 70. | 5.0% | Lebanon School District / 7,308 |
| 70. | 5.0% | Brooklyn School District / 8,210 |
| 70. | 5.0% | Regional School District 10 / 14,943 |
| 70. | 5.0% | Deep River School District / 4,629 |
| 75. | 5.0% | Scotland School District / 1,726 |
| 76. | 5.0% | Wallingford School District / 45,135 |
| 77. | 5.0% | East Haven School District / 29,257 |
| 78. | 4.9% | Brookfield School District / 16,452 |
| 78. | 4.9% | Enfield School District / 44,654 |
| 80. | 4.9% | Kent School District / 2,979 |
| 81. | 4.9% | Wethersfield School District / 26,668 |
| 82. | 4.9% | Easton School District / 7,490 |
| 83. | 4.9% | Windsor Locks School District / 12,498 |
| 84. | 4.9% | North Canaan School District / 3,315 |
| 84. | 4.9% | Hebron School District / 9,686 |
| 86. | 4.9% | Windsor School District / 29,044 |
| 86. | 4.9% | Newtown School District / 27,560 |
| 88. | 4.9% | Regional School District 17 / 14,871 |
| 88. | 4.9% | Simsbury School District / 23,511 |
| 90. | 4.9% | Regional School District 16 / 15,454 |
| 91. | 4.8% | Plymouth School District / 12,243 |
| 92. | 4.8% | Monroe School District / 19,479 |
| 93. | 4.8% | Newington School District / 30,562 |
| 94. | 4.8% | Plainville School District / 17,716 |
| 95. | 4.8% | Thompson School District / 9,458 |
| 95. | 4.8% | Montville School District / 19,571 |
| 97. | 4.7% | East Haddam School District / 9,126 |
| 98. | 4.7% | New Hartford School District / 6,970 |
| 99. | 4.7% | North Stonington School District / 5,297 |
| 100. | 4.7% | Rocky Hill School District / 19,709 |
| 100. | 4.7% | Granby School District / 11,282 |
| 102. | 4.7% | Shelton School District / 39,559 |
| 102. | 4.7% | Farmington School District / 25,340 |
| 102. | 4.7% | Milford School District / 52,759 |
| 105. | 4.7% | Watertown School District / 22,514 |
| 106. | 4.6% | Regional High School District 09 / 16,648 |
| 106. | 4.6% | Thomaston School District / 7,887 |
| 108. | 4.6% | South Windsor School District / 25,709 |
| 108. | 4.6% | Regional School District 13 / 11,813 |
| 110. | 4.6% | Andover School District / 3,303 |
| 111. | 4.6% | New Fairfield School District / 13,881 |
| 112. | 4.6% | Hampton School District / 1,863 |
| 113. | 4.6% | Guilford School District / 22,375 |
| 114. | 4.5% | Bolton School District / 4,980 |
| 115. | 4.5% | Franklin School District / 1,922 |
| 116. | 4.5% | North Branford School District / 14,407 |
| 117. | 4.4% | Pomfret School District / 4,247 |
| 118. | 4.4% | Cheshire School District / 29,261 |
| 118. | 4.4% | Wolcott School District / 16,680 |
| 118. | 4.4% | Avon School District / 18,098 |
| 121. | 4.4% | Redding School District / 9,158 |
| 122. | 4.4% | Waterford School District / 19,517 |
| 122. | 4.4% | Berlin School District / 19,866 |
| 122. | 4.4% | Regional High School District 07 / 13,963 |
| 125. | 4.3% | Canterbury School District / 5,132 |
| 125. | 4.3% | Sherman School District / 3,581 |
| 127. | 4.3% | Bozrah School District / 2,627 |
| 128. | 4.3% | Regional High School District 04 / 15,306 |
| 129. | 4.2% | Columbia School District / 5,485 |
| 130. | 4.2% | Woodstock School District / 7,964 |
| 130. | 4.2% | Orange School District / 13,956 |
| 130. | 4.2% | Bethany School District / 5,563 |
| 133. | 4.2% | North Haven School District / 24,093 |
| 134. | 4.2% | Stonington School District / 18,545 |
| 135. | 4.2% | Norfolk School District / 1,709 |
| 136. | 4.1% | Litchfield School District / 8,466 |
| 137. | 4.1% | Lisbon School District / 4,338 |
| 137. | 4.1% | Regional High School District 05 / 28,509 |
| 137. | 4.1% | Union School District / 854 |
| 140. | 4.1% | Preston School District / 4,726 |
| 141. | 4.0% | Barkhamsted School District / 3,799 |
| 142. | 4.0% | Bloomfield School District / 20,486 |
| 143. | 4.0% | Branford School District / 28,026 |
| 144. | 4.0% | Essex School District / 6,683 |
| 145. | 3.9% | Regional High School District 01 / 15,471 |
| 146. | 3.9% | Regional School District 14 / 13,582 |
| 147. | 3.9% | Regional School District 15 / 27,479 |
| 147. | 3.9% | Chester School District / 3,994 |
| 147. | 3.9% | East Lyme School District / 19,159 |
| 150. | 3.9% | Woodbridge School District / 8,990 |
| 151. | 3.8% | Westbrook School District / 6,938 |
| 152. | 3.8% | Regional School District 06 / 6,825 |
| 153. | 3.8% | Colebrook School District / 1,485 |
| 154. | 3.7% | Regional School District 18 / 10,009 |
| 155. | 3.7% | Canaan School District / 1,234 |
| 156. | 3.7% | Madison School District / 18,269 |
| 157. | 3.7% | Old Saybrook School District / 10,242 |
| 158. | 3.7% | Suffield School District / 15,735 |
| 159. | 3.6% | Somers School District / 11,444 |
| 160. | 3.5% | Willington School District / 6,041 |
| 161. | 3.5% | Sharon School District / 2,782 |
| 162. | 3.4% | Regional School District 12 / 7,567 |
| 163. | 3.2% | Cornwall School District / 1,420 |
| 164. | 2.9% | Salisbury School District / 3,741 |
| 165. | 2.7% | Regional High School District 19 / 36,901 |
| 166. | 2.2% | Mansfield School District / 26,543 |
Please note that we only rank locations with 'Percentage of Population Age 5 or Less' data. The rank above might not be a complete list. Locations without 'Percentage of Population Age 5 or Less' data are not listed.
