| Rank | Average Family Size ▼ | School District / Population |
| 1. | 3.74 | Benton School District / 442 |
| 2. | 3.54 | Brookline School District / 4,979 |
| 3. | 3.49 | Plymouth School District / 6,959 |
| 4. | 3.48 | Hill School District / 1,210 |
| 5. | 3.42 | Brentwood School District / 4,455 |
| 6. | 3.40 | Pelham School District / 12,850 |
| 7. | 3.33 | Hollis-Brookline Cooperative School District / 12,658 |
| 8. | 3.32 | Litchfield School District / 8,263 |
| 9. | 3.32 | Pittsfield School District / 4,104 |
| 10. | 3.31 | Bedford School District / 21,180 |
| 11. | 3.30 | Mascenic Regional School District / 7,525 |
| 12. | 3.27 | Londonderry School District / 24,189 |
| 13. | 3.25 | Barrington School District / 8,591 |
| 14. | 3.25 | Rivendell Interstate School District / 1,451 |
| 15. | 3.25 | Windham School District / 13,603 |
| 16. | 3.23 | South Hampton School District / 747 |
| 17. | 3.23 | Chester School District / 4,759 |
| 18. | 3.23 | Newfields School District / 1,671 |
| 19. | 3.23 | Auburn School District / 4,993 |
| 20. | 3.22 | Weare School District / 8,779 |
| 21. | 3.22 | Franklin School District / 8,499 |
| 22. | 3.22 | Timberlane Regional School District / 24,793 |
| 23. | 3.22 | Hudson School District / 24,484 |
| 24. | 3.21 | Jaffrey-Rindge Cooperative School District / 11,463 |
| 25. | 3.21 | New Boston School District / 5,293 |
| 26. | 3.21 | Hollis School District / 7,679 |
| 27. | 3.21 | Hillsboro-Deering Cooperative School District / 7,845 |
| 28. | 3.20 | Amherst School District / 11,201 |
| 29. | 3.20 | Farmington School District / 6,768 |
| 30. | 3.19 | Souhegan Cooperative School District / 13,602 |
| 31. | 3.17 | Oyster River Cooperative School District / 21,046 |
| 32. | 3.17 | Raymond School District / 10,165 |
| 33. | 3.17 | Fremont School District / 4,268 |
| 34. | 3.16 | Milton School District / 4,566 |
| 35. | 3.16 | John Stark Regional School District / 13,618 |
| 36. | 3.16 | Somersworth School District / 11,782 |
| 37. | 3.16 | Derry School District / 33,273 |
| 38. | 3.14 | Hampstead School District / 8,538 |
| 39. | 3.13 | Kensington School District / 2,138 |
| 40. | 3.13 | Strafford School District / 3,992 |
| 41. | 3.12 | Newmarket School District / 8,920 |
| 42. | 3.12 | Nashua School District / 86,823 |
| 43. | 3.12 | Mont Vernon School District / 2,401 |
| 44. | 3.12 | Manchester School District / 109,786 |
| 45. | 3.12 | Pembroke School District / 7,140 |
| 46. | 3.12 | Monroe School District / 948 |
| 47. | 3.11 | Chatham School District / 446 |
| 48. | 3.11 | Wentworth School District / 916 |
| 49. | 3.11 | Monadnock Regional School District / 14,368 |
| 50. | 3.11 | Deerfield School District / 4,278 |
| 51. | 3.11 | Haverhill Cooperative School District / 4,673 |
| 52. | 3.11 | Warren School District / 769 |
| 53. | 3.09 | Pemi-Baker Regional School District / 18,692 |
| 54. | 3.09 | Lincoln-Woodstock School District / 2,535 |
| 55. | 3.08 | Sanborn Regional School District / 10,689 |
| 56. | 3.08 | Rumney School District / 1,757 |
| 57. | 3.08 | Epsom School District / 4,572 |
| 58. | 3.08 | Salem School District / 28,824 |
| 59. | 3.08 | Stratham School District / 7,238 |
| 60. | 3.08 | Mason School District / 1,377 |
| 61. | 3.07 | Plainfield School District / 2,570 |
| 62. | 3.07 | Bath School District / 871 |
| 63. | 3.07 | Bow School District / 7,571 |
| 64. | 3.07 | Merrimack Valley School District / 17,548 |
| 65. | 3.07 | Lisbon Regional School District / 2,218 |
| 66. | 3.06 | Milford School District / 15,079 |
| 67. | 3.06 | Gilmanton School District / 3,761 |
| 68. | 3.06 | Merrimack School District / 25,540 |
| 69. | 3.06 | Bethlehem School District / 2,515 |
| 70. | 3.06 | Rollinsford School District / 2,540 |
| 71. | 3.05 | Exeter Regional Cooperative School District / 32,302 |
| 72. | 3.05 | Dunbarton School District / 2,756 |
| 73. | 3.05 | Allenstown School District / 4,364 |
| 74. | 3.04 | Windsor School District / 207 |
| 75. | 3.04 | Shaker Regional School District / 9,764 |
| 76. | 3.04 | Westmoreland School District / 2,183 |
| 77. | 3.04 | Middleton School District / 1,532 |
| 78. | 3.04 | Wilton-Lyndeboro School District / 5,169 |
| 79. | 3.04 | Goffstown School District / 17,668 |
| 80. | 3.04 | Name N/A / 363,140 |
| 81. | 3.04 | Cornish School District / 1,665 |
| 82. | 3.04 | Dover School District / 30,021 |
| 83. | 3.03 | Campton School District / 3,302 |
| 84. | 3.03 | Hanover School District / 11,260 |
| 84. | 3.03 | Dresden School District / 11,260 |
| 86. | 3.03 | Winnisquam Regional School District / 11,392 |
| 87. | 3.03 | Contoocook Valley School District / 18,682 |
| 88. | 3.02 | Stark School District / 607 |
| 89. | 3.02 | Albany School District / 875 |
| 90. | 3.02 | Hopkinton School District / 5,608 |
| 91. | 3.02 | Hooksett School District / 13,469 |
| 92. | 3.02 | Henniker School District / 4,839 |
| 93. | 3.01 | Barnstead School District / 4,586 |
| 94. | 3.00 | Piermont School District / 827 |
| 95. | 3.00 | Lyme School District / 1,857 |
| 96. | 3.00 | Chichester School District / 2,532 |
| 97. | 3.00 | Hampton Falls School District / 2,287 |
| 98. | 2.99 | Goshen-Lempster Cooperative School District / 1,979 |
| 99. | 2.99 | Nottingham School District / 4,760 |
| 100. | 2.99 | White Mountain Regional School District / 8,169 |
| 101. | 2.98 | Candia School District / 3,921 |
| 102. | 2.98 | Ashland School District / 1,653 |
| 103. | 2.98 | Greenland School District / 3,571 |
| 104. | 2.97 | Governor Wentworth Regional School District / 17,792 |
| 105. | 2.97 | East Kingston School District / 2,429 |
| 106. | 2.96 | Newport School District / 6,498 |
| 107. | 2.96 | Newfound Area School District / 10,682 |
| 108. | 2.96 | Winchester School District / 4,332 |
| 109. | 2.96 | Gilford School District / 7,140 |
| 110. | 2.96 | Hinsdale School District / 4,046 |
| 111. | 2.95 | Concord School District / 37,533 |
| 112. | 2.94 | Epping School District / 6,434 |
| 113. | 2.94 | Claremont School District / 13,304 |
| 114. | 2.93 | Rochester School District / 29,830 |
| 115. | 2.93 | Prospect Mountain High School Joint Maintenance Agreement District / 9,826 |
| 116. | 2.93 | Profile School District / 4,614 |
| 117. | 2.92 | Marlborough School District / 1,977 |
| 118. | 2.92 | Kearsarge Regional School District / 15,363 |
| 119. | 2.92 | Exeter School District / 14,371 |
| 120. | 2.91 | Thornton School District / 2,303 |
| 121. | 2.91 | Keene School District / 23,389 |
| 122. | 2.90 | Fall Mountain Regional School District / 12,217 |
| 123. | 2.90 | Marlow School District / 890 |
| 124. | 2.89 | Mascoma Valley Regional School District / 10,524 |
| 125. | 2.88 | Stratford School District / 814 |
| 126. | 2.87 | Lebanon School District / 13,275 |
| 127. | 2.87 | Nelson School District / 729 |
| 128. | 2.87 | Tamworth School District / 2,854 |
| 129. | 2.87 | Littleton School District / 5,944 |
| 130. | 2.86 | Alton School District / 5,240 |
| 131. | 2.84 | Grantham School District / 2,936 |
| 132. | 2.83 | Portsmouth School District / 21,140 |
| 133. | 2.82 | Stewartstown School District / 1,014 |
| 134. | 2.81 | Winnacunnet Cooperative School District / 30,502 |
| 135. | 2.81 | Laconia School District / 16,062 |
| 136. | 2.81 | Rye School District / 5,310 |
| 137. | 2.81 | Jackson School District / 990 |
| 138. | 2.80 | Hampton School District / 15,189 |
| 139. | 2.80 | Seabrook School District / 8,703 |
| 140. | 2.79 | Lafayette Regional School District / 2,099 |
| 141. | 2.79 | Conway School District / 10,063 |
| 142. | 2.78 | North Hampton School District / 4,323 |
| 143. | 2.78 | Holderness School District / 1,802 |
| 144. | 2.78 | Northumberland School District / 2,247 |
| 145. | 2.78 | Northwood School District / 4,244 |
| 146. | 2.77 | Wakefield School District / 5,044 |
| 147. | 2.75 | Andover School District / 2,503 |
| 148. | 2.73 | Gorham Randolph Shelburne Cooperative School District / 3,622 |
| 149. | 2.72 | Stoddard School District / 1,045 |
| 150. | 2.72 | Berlin School District / 10,009 |
| 151. | 2.72 | Chesterfield School District / 3,617 |
| 152. | 2.71 | Madison School District / 2,496 |
| 153. | 2.70 | Unity School District / 1,590 |
| 154. | 2.69 | Columbia School District / 694 |
| 155. | 2.69 | Washington School District / 1,071 |
| 156. | 2.69 | Harrisville School District / 923 |
| 157. | 2.68 | Bartlett School District / 2,793 |
| 158. | 2.68 | Landaff School District / 475 |
| 159. | 2.68 | Sunapee School District / 3,349 |
| 160. | 2.67 | Surry School District / 821 |
| 161. | 2.64 | Freedom School District / 1,197 |
| 162. | 2.64 | Dummer School District / 443 |
| 163. | 2.63 | Waterville Valley School District / 318 |
| 164. | 2.62 | Milan School District / 1,323 |
| 165. | 2.61 | Inter-Lakes School District / 8,518 |
| 166. | 2.60 | Moultonborough School District / 4,078 |
| 167. | 2.58 | Newington School District / 659 |
| 168. | 2.57 | Colebrook School District / 2,173 |
| 169. | 2.55 | Croydon School District / 615 |
| 170. | 2.53 | Eaton School District / 393 |
| 171. | 2.50 | Hart's Location School District / 33 |
| 172. | 2.44 | New Castle School District / 990 |
| 173. | 2.38 | Ellsworth School District / 62 |
| 174. | 2.37 | Clarksville School District / 336 |
| 175. | 2.36 | Pittsburg School District / 998 |
| 176. | 2.35 | Coos County School District / 237 |
| 177. | 2.25 | Errol School District / 296 |
Please note that we only rank locations with 'Average Family Size' data. The rank above might not be a complete list. Locations without 'Average Family Size' 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.
