| Rank | Population Density ▼ | School District / Population |
| 1. | 7,584.2/sq mi | Bridgeport School District / 146,680 |
| 2. | 6,934.7/sq mi | Hartford School District / 125,211 |
| 3. | 6,487.3/sq mi | New Haven School District / 130,553 |
| 4. | 5,427.9/sq mi | New Britain School District / 73,095 |
| 5. | 5,064.7/sq mi | West Haven School District / 55,290 |
| 6. | 3,796.8/sq mi | Waterbury School District / 109,887 |
| 7. | 3,091.7/sq mi | Ansonia School District / 19,128 |
| 8. | 2,847.8/sq mi | West Hartford School District / 63,396 |
| 9. | 2,733.9/sq mi | East Hartford School District / 51,211 |
| 10. | 2,615.4/sq mi | Stratford School District / 52,092 |
| 11. | 2,596.3/sq mi | New London School District / 27,536 |
| 12. | 2,509.3/sq mi | Meriden School District / 60,616 |
| 13. | 2,409.5/sq mi | Stamford School District / 125,401 |
| 14. | 2,399.1/sq mi | Norwalk School District / 87,214 |
| 15. | 2,374.7/sq mi | Derby School District / 12,837 |
| 16. | 2,332.6/sq mi | Newington School District / 30,652 |
| 17. | 2,258.3/sq mi | Bristol School District / 60,556 |
| 18. | 2,157.2/sq mi | East Haven School District / 29,139 |
| 19. | 2,105.1/sq mi | Manchester School District / 58,270 |
| 20. | 2,030.3/sq mi | Milford School District / 53,039 |
| 21. | 2,027.4/sq mi | Wethersfield School District / 26,579 |
| 22. | 1,938.3/sq mi | Naugatuck School District / 31,790 |
| 23. | 1,933.6/sq mi | Fairfield School District / 60,678 |
| 24. | 1,875.3/sq mi | Danbury School District / 82,781 |
| 25. | 1,849.3/sq mi | Hamden School District / 61,605 |
| 26. | 1,819.0/sq mi | Plainville School District / 17,791 |
| 27. | 1,613.5/sq mi | Vernon School District / 29,162 |
| 28. | 1,546.6/sq mi | Trumbull School District / 36,444 |
| 29. | 1,433.4/sq mi | Rocky Hill School District / 19,838 |
| 30. | 1,373.1/sq mi | Norwich School District / 40,378 |
| 31. | 1,340.5/sq mi | Windsor Locks School District / 12,554 |
| 32. | 1,306.8/sq mi | Enfield School District / 44,713 |
| 33. | 1,268.6/sq mi | Shelton School District / 40,472 |
| 34. | 1,187.4/sq mi | Southington School District / 43,509 |
| 35. | 1,136.5/sq mi | North Haven School District / 23,997 |
| 36. | 1,132.5/sq mi | Wallingford School District / 45,154 |
| 37. | 1,127.0/sq mi | Bethel School District / 19,078 |
| 38. | 1,119.4/sq mi | Middletown School District / 47,424 |
| 39. | 1,105.1/sq mi | Seymour School District / 16,551 |
| 40. | 1,087.0/sq mi | Cromwell School District / 14,077 |
| 41. | 1,002.7/sq mi | Branford School District / 28,066 |
| 42. | 940.8/sq mi | Windsor School District / 29,130 |
| 43. | 923.4/sq mi | Greenwich School District / 62,141 |
| 44. | 905.9/sq mi | Windham School District / 25,271 |
| 45. | 902.6/sq mi | Darien School District / 21,190 |
| 46. | 899.7/sq mi | South Windsor School District / 25,795 |
| 47. | 891.2/sq mi | New Canaan School District / 20,073 |
| 48. | 887.3/sq mi | Torrington School District / 35,774 |
| 49. | 886.6/sq mi | Farmington School District / 25,515 |
| 50. | 886.4/sq mi | Groton School District / 40,136 |
| 51. | 877.3/sq mi | Cheshire School District / 29,272 |
| 52. | 823.5/sq mi | Brookfield School District / 16,774 |
| 53. | 808.7/sq mi | Westport School District / 27,055 |
| 54. | 800.7/sq mi | Orange School District / 13,947 |
| 55. | 792.6/sq mi | Wolcott School District / 16,724 |
| 56. | 785.7/sq mi | Bloomfield School District / 20,626 |
| 57. | 775.6/sq mi | Avon School District / 18,298 |
| 58. | 755.1/sq mi | Watertown School District / 22,286 |
| 59. | 754.2/sq mi | Berlin School District / 20,352 |
| 60. | 751.5/sq mi | Monroe School District / 19,744 |
| 61. | 714.6/sq mi | Ridgefield School District / 25,025 |
| 62. | 693.4/sq mi | Clinton School District / 13,188 |
| 63. | 690.4/sq mi | Simsbury School District / 23,681 |
| 64. | 678.4/sq mi | Wilton School District / 18,519 |
| 65. | 664.2/sq mi | Glastonbury School District / 34,661 |
| 66. | 646.5/sq mi | Regional School District 16 / 15,680 |
| 67. | 638.5/sq mi | Thomaston School District / 7,793 |
| 68. | 577.1/sq mi | Mansfield School District / 26,328 |
| 69. | 560.3/sq mi | Essex School District / 6,643 |
| 70. | 559.7/sq mi | New Fairfield School District / 14,079 |
| 71. | 541.1/sq mi | Plymouth School District / 12,085 |
| 72. | 539.5/sq mi | North Branford School District / 14,387 |
| 73. | 499.1/sq mi | Madison School District / 18,284 |
| 74. | 499.1/sq mi | Weston School District / 10,319 |
| 75. | 489.7/sq mi | Regional High School District 05 / 28,462 |
| 76. | 473.8/sq mi | Old Saybrook School District / 10,222 |
| 77. | 473.4/sq mi | Newtown School District / 27,960 |
| 78. | 469.1/sq mi | Regional School District 15 / 27,451 |
| 79. | 467.5/sq mi | Woodbridge School District / 8,969 |
| 80. | 466.1/sq mi | Putnam School District / 9,515 |
| 81. | 455.3/sq mi | East Lyme School District / 19,118 |
| 82. | 454.6/sq mi | Ellington School District / 15,725 |
| 83. | 450.6/sq mi | Guilford School District / 22,405 |
| 84. | 444.7/sq mi | Montville School District / 19,649 |
| 85. | 437.8/sq mi | Waterford School District / 19,499 |
| 86. | 436.5/sq mi | New Milford School District / 27,821 |
| 87. | 423.4/sq mi | East Windsor School District / 11,353 |
| 88. | 412.9/sq mi | Canton School District / 10,334 |
| 89. | 401.3/sq mi | Somers School District / 11,431 |
| 90. | 384.9/sq mi | Oxford School District / 12,831 |
| 91. | 381.5/sq mi | Portland School District / 9,483 |
| 92. | 377.2/sq mi | Ledyard School District / 15,090 |
| 93. | 371.9/sq mi | Tolland School District / 14,971 |
| 94. | 370.2/sq mi | Stonington School District / 18,539 |
| 95. | 367.1/sq mi | Suffield School District / 15,764 |
| 96. | 361.2/sq mi | Regional High School District 04 / 15,477 |
| 97. | 355.3/sq mi | Plainfield School District / 15,270 |
| 98. | 350.6/sq mi | East Hampton School District / 12,936 |
| 99. | 346.6/sq mi | Killingly School District / 17,281 |
| 100. | 337.5/sq mi | Bolton School District / 4,963 |
| 101. | 327.9/sq mi | Winchester School District / 11,089 |
| 102. | 325.5/sq mi | Deep River School District / 4,611 |
| 103. | 325.1/sq mi | Coventry School District / 12,434 |
| 104. | 324.8/sq mi | Colchester School District / 16,143 |
| 105. | 322.4/sq mi | Griswold School District / 11,952 |
| 106. | 320.8/sq mi | Westbrook School District / 6,916 |
| 107. | 318.2/sq mi | Regional School District 13 / 11,797 |
| 108. | 308.7/sq mi | Regional High School District 19 / 36,619 |
| 109. | 289.1/sq mi | Redding School District / 9,267 |
| 110. | 288.6/sq mi | East Granby School District / 5,098 |
| 111. | 281.8/sq mi | Brooklyn School District / 8,240 |
| 112. | 277.7/sq mi | Regional High School District 09 / 16,860 |
| 113. | 277.1/sq mi | Granby School District / 11,310 |
| 114. | 273.3/sq mi | Marlborough School District / 6,428 |
| 115. | 264.9/sq mi | Easton School District / 7,593 |
| 116. | 260.1/sq mi | Lisbon School District / 4,340 |
| 117. | 258.2/sq mi | Hebron School District / 9,627 |
| 118. | 257.8/sq mi | Bethany School District / 5,546 |
| 119. | 251.4/sq mi | Regional High School District 08 / 19,236 |
| 120. | 251.0/sq mi | Chester School District / 4,223 |
| 121. | 248.9/sq mi | Columbia School District / 5,472 |
| 122. | 244.3/sq mi | Regional School District 10 / 15,035 |
| 123. | 238.0/sq mi | Regional School District 14 / 13,402 |
| 124. | 216.5/sq mi | Sprague School District / 2,993 |
| 125. | 204.4/sq mi | Stafford School District / 12,013 |
| 126. | 202.7/sq mi | Andover School District / 3,181 |
| 127. | 193.0/sq mi | Thompson School District / 9,390 |
| 128. | 181.2/sq mi | Regional School District 17 / 14,872 |
| 129. | 181.0/sq mi | New Hartford School District / 6,910 |
| 130. | 178.8/sq mi | Willington School District / 5,994 |
| 131. | 167.5/sq mi | North Canaan School District / 3,262 |
| 132. | 161.6/sq mi | East Haddam School District / 9,142 |
| 133. | 157.3/sq mi | Regional School District 18 / 9,954 |
| 134. | 155.4/sq mi | Sherman School District / 3,636 |
| 135. | 149.2/sq mi | Preston School District / 4,735 |
| 136. | 147.3/sq mi | Litchfield School District / 8,365 |
| 137. | 140.3/sq mi | Salem School District / 4,176 |
| 138. | 139.6/sq mi | Sterling School District / 3,809 |
| 139. | 132.4/sq mi | Lebanon School District / 7,314 |
| 140. | 130.0/sq mi | Bozrah School District / 2,631 |
| 141. | 128.0/sq mi | Woodstock School District / 7,916 |
| 142. | 127.1/sq mi | Canterbury School District / 5,110 |
| 143. | 115.3/sq mi | Chaplin School District / 2,256 |
| 144. | 108.9/sq mi | Ashford School District / 4,297 |
| 145. | 103.9/sq mi | Pomfret School District / 4,216 |
| 146. | 101.8/sq mi | Franklin School District / 1,993 |
| 147. | 96.6/sq mi | Barkhamsted School District / 3,749 |
| 148. | 96.3/sq mi | North Stonington School District / 5,293 |
| 149. | 92.2/sq mi | Regional High School District 11 / 5,877 |
| 150. | 91.7/sq mi | Regional School District 12 / 7,549 |
| 151. | 91.5/sq mi | Scotland School District / 1,709 |
| 152. | 87.9/sq mi | Regional High School District 07 / 13,739 |
| 153. | 75.0/sq mi | Hampton School District / 1,912 |
| 154. | 72.5/sq mi | Regional School District 06 / 6,635 |
| 155. | 65.4/sq mi | Voluntown School District / 2,602 |
| 156. | 63.9/sq mi | Hartland School District / 2,211 |
| 157. | 61.7/sq mi | Salisbury School District / 3,708 |
| 158. | 59.5/sq mi | Kent School District / 2,951 |
| 159. | 59.0/sq mi | Eastford School District / 1,726 |
| 160. | 57.5/sq mi | Regional High School District 01 / 15,412 |
| 161. | 48.4/sq mi | Colebrook School District / 1,594 |
| 162. | 46.1/sq mi | Sharon School District / 2,746 |
| 163. | 37.3/sq mi | Canaan School District / 1,240 |
| 164. | 32.5/sq mi | Cornwall School District / 1,505 |
| 165. | 32.0/sq mi | Norfolk School District / 1,486 |
| 166. | 31.9/sq mi | Union School District / 950 |
Please note that we only rank locations with 'Population Density' data. The rank above might not be a complete list. Locations without 'Population Density' data are not listed.
