| Rank | Average Household Size ▼ | School District / Population |
| 1. | 3.17 | Somerset School District in Berkley (9-12) / 6,409 |
| 1. | 3.17 | Berkley School District / 6,409 |
| 3. | 3.15 | Sudbury School District / 17,244 |
| 4. | 3.14 | Harvard School District / 6,145 |
| 5. | 3.12 | Wilmington School District / 21,972 |
| 6. | 3.08 | Lincoln-Sudbury School District / 25,541 |
| 7. | 3.07 | Westford School District / 21,984 |
| 8. | 3.07 | Boxford School District / 8,175 |
| 9. | 3.06 | Norfolk School District / 10,968 |
| 10. | 3.06 | Dover School District / 5,663 |
| 11. | 3.04 | Southborough School District / 9,681 |
| 12. | 3.04 | Plympton School District / 2,754 |
| 13. | 3.02 | Hopkinton School District / 14,326 |
| 14. | 3.02 | Carlisle School District / 4,817 |
| 15. | 3.01 | Sutton School District / 9,124 |
| 16. | 3.01 | Tyngsborough School District / 11,594 |
| 17. | 3.01 | Groton-Dunstable School District / 13,868 |
| 18. | 3.00 | Billerica School District / 39,225 |
| 19. | 3.00 | Dover-Sherborn School District / 9,893 |
| 20. | 2.99 | Mendon-Upton School District / 12,310 |
| 21. | 2.98 | Lakeville School District / 10,460 |
| 22. | 2.98 | Edgartown School District / 4,003 |
| 23. | 2.97 | Topsfield School District / 6,096 |
| 24. | 2.96 | Lincoln School District / 8,297 |
| 25. | 2.95 | Lawrence School District / 70,273 |
| 26. | 2.94 | Hamilton-Wenham School District / 12,841 |
| 27. | 2.94 | Medfield School District / 12,175 |
| 28. | 2.94 | Weston School District / 11,686 |
| 29. | 2.94 | Freetown-Lakeville School District / 19,473 |
| 30. | 2.94 | Norwell School District / 10,271 |
| 31. | 2.93 | Nantucket School District / 11,013 |
| 32. | 2.93 | Nashoba School District / 17,919 |
| 33. | 2.92 | Northborough-Southborough School District / 24,413 |
| 34. | 2.92 | Sherborn School District / 4,230 |
| 35. | 2.91 | Oak Bluffs School District / 3,835 |
| 36. | 2.91 | Medway School District / 12,813 |
| 37. | 2.90 | Rochester School District / 5,223 |
| 38. | 2.90 | Chelsea School District / 36,166 |
| 39. | 2.89 | Pembroke School District / 18,476 |
| 40. | 2.89 | Freetown School District / 9,013 |
| 41. | 2.89 | North Middlesex School District / 23,903 |
| 42. | 2.89 | Pentucket School District / 17,795 |
| 43. | 2.88 | Ashburnham-Westminster School District / 13,472 |
| 44. | 2.88 | Masconomet School District / 23,229 |
| 45. | 2.88 | Sharon School District / 17,365 |
| 46. | 2.88 | Winchendon School District / 10,293 |
| 47. | 2.87 | Fairhaven/New Bedford School Districts in Acushnet (9-12) / 10,372 |
| 47. | 2.87 | Acushnet School District / 10,372 |
| 49. | 2.87 | Lynnfield School District / 11,492 |
| 50. | 2.87 | Dighton-Rehoboth School District / 18,006 |
| 51. | 2.86 | Whitman-Hanson School District / 24,073 |
| 52. | 2.85 | Holliston School District / 13,963 |
| 53. | 2.85 | East Bridgewater School District / 13,886 |
| 54. | 2.85 | Georgetown School District / 8,543 |
| 55. | 2.85 | Hanover School District / 13,961 |
| 56. | 2.85 | Hopedale School District / 6,276 |
| 57. | 2.85 | Bridgewater-Raynham School District / 40,440 |
| 58. | 2.85 | Northborough School District / 14,732 |
| 59. | 2.85 | Brockton School District / 93,217 |
| 60. | 2.84 | Cohasset School District / 7,323 |
| 61. | 2.83 | Southwick-Tolland School District in Granville (9-12) / 1,659 |
| 61. | 2.83 | Granville School District / 1,659 |
| 63. | 2.83 | Dudley-Charlton Regional School District / 23,637 |
| 64. | 2.83 | Franklin School District / 31,247 |
| 65. | 2.83 | Littleton School District / 8,705 |
| 66. | 2.82 | Revere School District / 50,555 |
| 67. | 2.82 | Milton School District / 26,333 |
| 68. | 2.82 | Seekonk School District / 13,573 |
| 69. | 2.81 | Wrentham School District / 11,106 |
| 70. | 2.81 | Leicester School District / 11,100 |
| 71. | 2.81 | West Bridgewater School District / 6,667 |
| 72. | 2.81 | North Reading School District / 13,286 |
| 73. | 2.80 | Mansfield School District / 23,329 |
| 74. | 2.80 | Acton School District / 20,777 |
| 75. | 2.80 | Narragansett School District / 9,752 |
| 76. | 2.80 | Wachusett School District / 41,452 |
| 77. | 2.79 | Blackstone-Millville School District / 12,185 |
| 78. | 2.79 | Martha's Vineyard School District / 15,519 |
| 79. | 2.79 | Duxbury School District / 14,225 |
| 80. | 2.79 | King Philip School District / 30,241 |
| 81. | 2.78 | Mount Greylock/New Lebanon (NY) School Districts in Hancock (7-12) / 738 |
| 81. | 2.78 | Hancock School District / 738 |
| 83. | 2.78 | Silver Lake School District / 22,849 |
| 84. | 2.78 | Longmeadow School District / 15,706 |
| 85. | 2.78 | Hampden-Wilbraham School District / 19,539 |
| 86. | 2.78 | Uxbridge School District / 12,737 |
| 87. | 2.78 | Halifax School District / 7,735 |
| 88. | 2.77 | Tewksbury School District / 29,030 |
| 89. | 2.77 | Andover School District / 33,309 |
| 90. | 2.77 | Acton-Boxborough School District / 25,878 |
| 91. | 2.76 | Northbridge School District / 14,587 |
| 92. | 2.76 | Hingham School District / 22,158 |
| 93. | 2.76 | Westwood School District / 14,040 |
| 94. | 2.76 | Douglas School District / 8,020 |
| 95. | 2.75 | Carver School District / 11,806 |
| 96. | 2.75 | Milford School District / 27,636 |
| 97. | 2.74 | Middleborough School District / 21,051 |
| 98. | 2.74 | Everett School District / 37,525 |
| 99. | 2.74 | Holland School District / 2,563 |
| 100. | 2.73 | Kingston School District / 12,360 |
| 101. | 2.73 | Quabbin School District / 15,738 |
| 102. | 2.73 | Methuen School District / 43,889 |
| 103. | 2.73 | Burlington School District / 24,983 |
| 104. | 2.73 | Saugus School District / 27,089 |
| 105. | 2.73 | Lexington School District / 30,445 |
| 106. | 2.73 | Wayland School District / 13,219 |
| 107. | 2.73 | Grafton School District / 17,535 |
| 108. | 2.72 | Winchester School District / 21,229 |
| 109. | 2.72 | Lunenburg School District / 10,133 |
| 110. | 2.71 | Reading School District / 23,257 |
| 111. | 2.71 | Shrewsbury School District / 33,888 |
| 112. | 2.71 | Sandwich School District / 20,150 |
| 113. | 2.71 | Needham School District / 28,679 |
| 114. | 2.71 | Bellingham School District / 15,752 |
| 115. | 2.71 | Tisbury School District / 3,884 |
| 116. | 2.70 | Dracut School District / 28,930 |
| 117. | 2.70 | Conway School District / 1,914 |
| 118. | 2.69 | East Longmeadow School District / 15,484 |
| 119. | 2.69 | Wellesley School District / 27,091 |
| 120. | 2.69 | Norton School District / 19,103 |
| 121. | 2.68 | Concord-Carlisle School District / 22,383 |
| 122. | 2.68 | North Attleborough School District / 27,807 |
| 123. | 2.67 | Marshfield School District / 24,619 |
| 124. | 2.67 | Walpole School District / 23,167 |
| 125. | 2.67 | Westborough School District / 18,427 |
| 126. | 2.66 | North Andover School District / 27,433 |
| 127. | 2.66 | Scituate School District / 18,192 |
| 128. | 2.66 | Brimfield School District / 3,800 |
| 129. | 2.66 | Rockland School District / 17,845 |
| 130. | 2.65 | Middleton School District / 8,958 |
| 131. | 2.65 | Auburn School District / 16,473 |
| 132. | 2.65 | Bedford School District / 13,125 |
| 133. | 2.65 | Name N/A / 418,381 |
| 134. | 2.65 | Lynn School District / 87,196 |
| 135. | 2.64 | Berlin School District / 2,795 |
| 136. | 2.64 | Abington School District / 16,399 |
| 137. | 2.64 | Marion School District / 5,167 |
| 138. | 2.63 | Braintree School District / 34,466 |
| 139. | 2.63 | Boxborough School District / 5,101 |
| 140. | 2.63 | Attleboro School District / 43,297 |
| 141. | 2.63 | Foxborough School District / 16,445 |
| 142. | 2.63 | Millis School District / 7,964 |
| 143. | 2.63 | Lowell School District / 103,077 |
| 144. | 2.62 | Westhampton School District / 1,824 |
| 145. | 2.62 | Old Rochester School District / 16,846 |
| 146. | 2.61 | Belchertown School District / 14,085 |
| 147. | 2.61 | Ludlow School District / 22,217 |
| 148. | 2.61 | Randolph School District / 30,391 |
| 149. | 2.61 | Springfield School District / 153,170 |
| 150. | 2.60 | Westfield School District / 41,373 |
| 151. | 2.60 | Fitchburg School District / 41,007 |
| 152. | 2.60 | Berlin-Boylston School District / 7,160 |
| 153. | 2.60 | Plymouth School District / 56,124 |
| 154. | 2.60 | Concord School District / 17,566 |
| 155. | 2.60 | Dartmouth School District / 34,002 |
| 156. | 2.59 | Shutesbury School District / 1,935 |
| 157. | 2.59 | Up-Island Regional School District / 3,797 |
| 158. | 2.59 | Stoughton School District / 26,910 |
| 159. | 2.59 | Oxford School District / 13,813 |
| 160. | 2.59 | Easton School District / 22,913 |
| 161. | 2.59 | Monson School District / 9,023 |
| 162. | 2.59 | Swansea School District / 16,084 |
| 163. | 2.59 | Holbrook School District / 10,685 |
| 164. | 2.58 | Winthrop School District / 18,605 |
| 165. | 2.58 | Ayer/Lunenberg School Districts in Shirley (9-12) / 7,848 |
| 165. | 2.58 | Shirley School District / 7,848 |
| 167. | 2.58 | Southampton School District / 5,835 |
| 168. | 2.58 | Granby School District / 6,255 |
| 169. | 2.58 | Spencer-East Brookfield School District / 14,173 |
| 170. | 2.58 | North Adams School District in Florida (9-12) / 822 |
| 171. | 2.58 | Florida School District / 966 |
| 172. | 2.57 | Boylston School District / 4,365 |
| 173. | 2.57 | North Adams School District in Monroe (9-12) / 144 |
| 174. | 2.57 | Manchester Essex Regional School District / 8,463 |
| 175. | 2.57 | Ashland School District / 15,136 |
| 176. | 2.57 | Quaboag Regional School District / 9,131 |
| 177. | 2.57 | Danvers School District / 26,775 |
| 178. | 2.56 | Pioneer Valley School District / 6,737 |
| 179. | 2.56 | Tantasqua School District / 20,741 |
| 180. | 2.56 | Gill-Montague School District in Erving (7-12) / 1,863 |
| 180. | 2.56 | Erving School District / 1,863 |
| 182. | 2.55 | Leverett School District / 1,914 |
| 183. | 2.55 | Taunton School District / 55,718 |
| 184. | 2.54 | Peabody School District / 51,186 |
| 185. | 2.54 | Chelmsford School District / 33,655 |
| 186. | 2.54 | Newton School District / 83,504 |
| 187. | 2.54 | Brookfield School District / 3,409 |
| 188. | 2.54 | Canton School District / 21,865 |
| 189. | 2.54 | Southbridge School District / 17,516 |
| 190. | 2.53 | Somerset School District / 18,503 |
| 191. | 2.53 | West Boylston School District / 8,090 |
| 192. | 2.53 | Westport School District / 15,286 |
| 193. | 2.52 | Haverhill School District / 60,681 |
| 194. | 2.52 | Plainville School District / 8,167 |
| 195. | 2.52 | Gateway School District / 8,449 |
| 196. | 2.52 | Wakefield School District / 24,715 |
| 197. | 2.52 | Malden School District / 55,521 |
| 198. | 2.52 | Hampshire School District / 12,382 |
| 199. | 2.51 | Athol-Royalston School District / 13,181 |
| 200. | 2.51 | Gardner School District / 21,018 |
| 201. | 2.51 | Leominster School District / 42,085 |
| 202. | 2.51 | Chesterfield-Goshen School District / 2,246 |
| 203. | 2.51 | Southwick-Tolland School District / 10,163 |
| 204. | 2.51 | Triton School District / 20,954 |
| 205. | 2.51 | Dedham School District / 24,308 |
| 206. | 2.50 | Sturbridge School District / 8,826 |
| 207. | 2.50 | Natick School District / 31,921 |
| 208. | 2.50 | Melrose School District / 26,672 |
| 209. | 2.50 | Swampscott School District / 13,997 |
| 210. | 2.49 | Belmont School District / 23,394 |
| 211. | 2.49 | Amesbury School District / 16,503 |
| 212. | 2.49 | Holyoke School District / 40,530 |
| 213. | 2.49 | Millbury School District / 13,628 |
| 214. | 2.48 | Agawam School District / 28,599 |
| 215. | 2.48 | Woburn School District / 38,404 |
| 216. | 2.48 | Pelham School District / 1,343 |
| 217. | 2.47 | Petersham School District / 1,246 |
| 218. | 2.47 | Central Berkshire School District / 14,215 |
| 219. | 2.47 | Hudson School District / 19,551 |
| 220. | 2.47 | Boston School District / 625,304 |
| 221. | 2.46 | Beverly School District / 39,597 |
| 222. | 2.46 | Lanesborough School District / 3,130 |
| 223. | 2.46 | Clarksburg School District / 1,893 |
| 223. | 2.46 | North Adams School District in Clarksburg (9-12) / 1,893 |
| 225. | 2.45 | Marblehead School District / 19,870 |
| 226. | 2.45 | Frontier School District / 12,005 |
| 227. | 2.45 | Wales School District / 2,143 |
| 228. | 2.44 | Framingham School District / 66,411 |
| 229. | 2.44 | Maynard School District / 10,385 |
| 230. | 2.44 | Mohawk Trail School District / 8,829 |
| 231. | 2.43 | Marlborough School District / 37,963 |
| 232. | 2.43 | Stoneham School District / 21,362 |
| 233. | 2.43 | Ipswich School District / 13,302 |
| 234. | 2.43 | Clinton School District / 14,196 |
| 235. | 2.43 | Worcester School District / 178,397 |
| 236. | 2.42 | Palmer School District / 13,153 |
| 237. | 2.42 | Adams-Cheshire School District in Savoy (7-12) / 763 |
| 237. | 2.42 | Savoy School District / 763 |
| 239. | 2.42 | Bourne School District / 19,395 |
| 240. | 2.42 | Whately School District / 1,588 |
| 241. | 2.41 | Deerfield School District / 4,724 |
| 242. | 2.41 | Medford School District / 55,796 |
| 243. | 2.41 | New Bedford School District / 91,339 |
| 244. | 2.41 | Mattapoisett School District / 6,456 |
| 245. | 2.40 | Amherst-Pelham School District / 41,163 |
| 246. | 2.39 | North Brookfield School District / 5,048 |
| 247. | 2.39 | Mashpee School District / 14,265 |
| 248. | 2.39 | Norwood School District / 28,346 |
| 249. | 2.39 | Sunderland School District / 3,779 |
| 250. | 2.39 | Avon School District / 4,349 |
| 251. | 2.38 | Pittsfield School District in Richmond (9-12) / 1,838 |
| 251. | 2.38 | Richmond School District / 1,838 |
| 253. | 2.38 | Nahant School District / 3,602 |
| 253. | 2.38 | Swampscott School District in Nahant (7-12) / 3,602 |
| 255. | 2.38 | Fairhaven School District / 16,111 |
| 256. | 2.36 | Amherst School District / 35,971 |
| 257. | 2.36 | Gosnold School District / 156 |
| 258. | 2.36 | Chicopee School District / 55,875 |
| 259. | 2.36 | Gloucester School District / 30,264 |
| 260. | 2.36 | Weymouth School District / 53,602 |
| 261. | 2.35 | West Springfield School District / 28,324 |
| 262. | 2.35 | New Salem-Wendell School District / 1,808 |
| 263. | 2.35 | Somerville School District / 75,880 |
| 264. | 2.35 | Wareham School District / 21,150 |
| 265. | 2.34 | Fall River School District / 90,853 |
| 266. | 2.34 | Barnstable School District / 46,781 |
| 267. | 2.34 | Ralph C. Mahar School District / 10,743 |
| 268. | 2.33 | Hadley School District / 4,740 |
| 269. | 2.32 | Mount Greylock School District / 11,227 |
| 270. | 2.32 | Salem School District / 41,547 |
| 271. | 2.31 | Orange School District / 7,689 |
| 272. | 2.31 | Williamsburg School District / 2,477 |
| 273. | 2.29 | Webster School District / 16,914 |
| 274. | 2.28 | Rowe School District / 418 |
| 274. | 2.28 | Mohawk Trail School District in Rowe (7-12) / 418 |
| 276. | 2.27 | Arlington School District / 41,244 |
| 277. | 2.27 | Newburyport School District / 17,428 |
| 278. | 2.27 | Waltham School District / 60,547 |
| 279. | 2.27 | Hull School District / 11,090 |
| 280. | 2.26 | Ware School District / 9,843 |
| 281. | 2.26 | Brookline School District / 56,166 |
| 282. | 2.25 | Williamstown School District / 8,097 |
| 283. | 2.25 | South Hadley School District / 17,190 |
| 284. | 2.25 | Ayer School District / 7,601 |
| 285. | 2.24 | Lee School District / 6,196 |
| 286. | 2.24 | Greenfield School District / 17,862 |
| 287. | 2.23 | Adams-Cheshire School District / 11,674 |
| 288. | 2.22 | Rockport School District / 7,631 |
| 289. | 2.22 | Falmouth School District / 33,071 |
| 290. | 2.21 | Farmington River Regional School District / 2,044 |
| 291. | 2.21 | Watertown School District / 32,767 |
| 292. | 2.21 | Brewster School District / 10,059 |
| 293. | 2.21 | Mohawk Trail Regional School District in Hawley and Charlemont towns / 1,518 |
| 293. | 2.21 | Hawlemont School District / 1,518 |
| 295. | 2.21 | North Adams School District / 13,941 |
| 296. | 2.20 | Truro School District / 1,938 |
| 296. | 2.20 | Nauset/Provincetown School Districts in Turo (7-12) / 1,938 |
| 298. | 2.20 | Gill-Montague School District / 9,750 |
| 299. | 2.20 | Pittsfield School District / 42,943 |
| 300. | 2.20 | Southern Berkshire School District / 7,538 |
| 301. | 2.19 | Quincy School District / 90,120 |
| 302. | 2.19 | Easthampton School District / 16,176 |
| 303. | 2.18 | Lenox School District / 5,096 |
| 304. | 2.17 | Eastham School District / 5,488 |
| 305. | 2.13 | Harwich School District / 12,316 |
| 306. | 2.12 | Hatfield School District / 3,237 |
| 307. | 2.11 | Berkshire Hills School District / 10,385 |
| 308. | 2.10 | Dennis-Yarmouth School District / 39,675 |
| 309. | 2.09 | Nauset School District / 24,870 |
| 310. | 2.09 | Northampton School District / 28,548 |
| 311. | 2.08 | Cambridge School District / 106,255 |
| 312. | 2.02 | Chatham School District / 6,761 |
| 313. | 1.96 | Orleans School District / 6,282 |
| 314. | 1.91 | Wellfleet School District / 3,041 |
| 315. | 1.64 | Provincetown School District / 3,407 |
Please note that we only rank locations with 'Average Household Size' data. The rank above might not be a complete list. Locations without 'Average Household 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.
