| Rank | Average Family Size ▼ | School District / Population |
| 1. | 8.69 | Colorado City Unified District / 6,301 |
| 2. | 6.47 | McNary Elementary District / 543 |
| 3. | 5.65 | Ganado Unified District / 7,714 |
| 4. | 5.62 | Chinle Unified District / 20,277 |
| 5. | 5.59 | Sanders Unified District / 6,436 |
| 6. | 5.23 | Window Rock Unified District / 12,438 |
| 7. | 5.21 | Sacaton Elementary District / 7,465 |
| 8. | 5.20 | Red Mesa Unified District / 7,761 |
| 9. | 5.16 | Fort Thomas Unified District / 5,401 |
| 10. | 5.05 | Peach Springs Unified District / 1,103 |
| 11. | 4.94 | Whiteriver Unified District / 12,202 |
| 12. | 4.93 | Cedar Unified District / 8,026 |
| 13. | 4.83 | San Carlos Unified District / 5,591 |
| 14. | 4.82 | Stanfield Elementary District / 4,758 |
| 15. | 4.76 | Murphy Elementary District / 13,666 |
| 16. | 4.69 | Indian Oasis-Baboquivari Unified District / 6,666 |
| 17. | 4.63 | Wilson Elementary District / 3,247 |
| 18. | 4.62 | Cartwright Elementary District / 119,571 |
| 19. | 4.61 | Pinon Unified District / 6,729 |
| 20. | 4.60 | Isaac Elementary District / 43,040 |
| 21. | 4.56 | Tuba City Unified District / 16,926 |
| 22. | 4.51 | Kayenta Unified District / 9,909 |
| 23. | 4.35 | Alhambra Elementary District / 88,563 |
| 24. | 4.34 | Riverside Elementary District / 6,837 |
| 25. | 4.27 | Littleton Elementary District / 41,072 |
| 26. | 4.26 | Roosevelt Elementary District / 105,099 |
| 27. | 4.25 | Eloy Elementary District / 6,644 |
| 28. | 4.23 | Union Elementary District / 15,110 |
| 29. | 4.23 | Tolleson Elementary District / 15,837 |
| 30. | 4.12 | Fort Huachuca Accommodation District / 5,743 |
| 31. | 4.11 | Laveen Elementary District / 44,709 |
| 32. | 4.11 | Phoenix Union High School District / 670,209 |
| 33. | 4.10 | Fowler Elementary District / 32,062 |
| 34. | 4.10 | J. O. Combs Unified School District / 38,281 |
| 35. | 4.08 | Tolleson Union High School District / 173,006 |
| 36. | 4.06 | Page Unified District / 13,337 |
| 37. | 4.04 | Joseph City Unified District / 1,637 |
| 38. | 4.00 | Sunnyside Unified District / 91,086 |
| 39. | 3.99 | Palo Verde Elementary District / 2,145 |
| 40. | 3.99 | Glendale Elementary District / 99,031 |
| 41. | 3.98 | Santa Cruz Elementary District / 1,926 |
| 42. | 3.98 | Santa Cruz Valley Union High School District / 17,712 |
| 43. | 3.97 | Phoenix Elementary District / 54,631 |
| 44. | 3.92 | Buckeye Elementary District / 39,188 |
| 45. | 3.91 | Holbrook Unified District / 10,570 |
| 46. | 3.90 | Gila Bend Unified District / 2,610 |
| 47. | 3.89 | Pendergast Elementary District / 68,925 |
| 48. | 3.89 | Arlington Elementary District / 1,335 |
| 49. | 3.88 | Coolidge Unified District / 37,433 |
| 50. | 3.88 | Naco Elementary District / 1,547 |
| 51. | 3.85 | Creighton Elementary District / 66,503 |
| 52. | 3.84 | Nogales Unified District / 21,898 |
| 53. | 3.84 | Avondale Elementary District / 49,323 |
| 54. | 3.83 | Aguila Elementary District / 1,157 |
| 55. | 3.82 | Round Valley Unified District / 8,073 |
| 56. | 3.81 | Queen Creek Unified District / 28,951 |
| 57. | 3.80 | Mammoth-San Manuel Unified District / 6,097 |
| 58. | 3.77 | Gadsden Elementary District / 28,694 |
| 59. | 3.77 | Paloma School District / 296 |
| 60. | 3.75 | Winslow Unified District / 11,733 |
| 61. | 3.74 | Buckeye Union High School District / 67,494 |
| 62. | 3.72 | Florence Unified School District / 75,228 |
| 63. | 3.70 | Maricopa Unified School District / 49,568 |
| 64. | 3.68 | Red Rock Elementary District / 3,067 |
| 65. | 3.68 | Saddle Mountain Unified School District / 8,320 |
| 66. | 3.67 | Concho Elementary District / 2,644 |
| 67. | 3.66 | Pomerene Elementary District / 1,106 |
| 68. | 3.66 | Casa Grande Union High School District / 88,203 |
| 69. | 3.64 | Glendale Union High School District / 328,488 |
| 70. | 3.63 | Bagdad Unified School District / 2,432 |
| 71. | 3.62 | Higley Unified District / 69,496 |
| 72. | 3.61 | Ray Unified District / 3,676 |
| 73. | 3.61 | Bonita Elementary District / 1,265 |
| 74. | 3.61 | Snowflake Unified District / 12,166 |
| 75. | 3.61 | Altar Valley Elementary District / 7,069 |
| 76. | 3.60 | Superior Unified School District / 3,278 |
| 77. | 3.59 | Balsz Elementary District / 29,647 |
| 78. | 3.58 | Double Adobe Elementary District / 632 |
| 79. | 3.58 | Somerton Elementary District / 22,334 |
| 80. | 3.58 | Santa Cruz Valley Unified District / 20,263 |
| 81. | 3.56 | Name N/A / 2,262,744 |
| 82. | 3.55 | Agua Fria Union High School District / 128,761 |
| 83. | 3.55 | Douglas Unified District / 22,014 |
| 84. | 3.54 | Solomon Elementary District / 3,823 |
| 85. | 3.54 | Casa Grande Elementary District / 62,832 |
| 86. | 3.52 | Littlefield Unified District / 3,636 |
| 87. | 3.52 | Gilbert Unified District / 192,279 |
| 88. | 3.51 | Fredonia-Moccasin Unified District / 3,162 |
| 89. | 3.50 | Thatcher Unified District / 7,358 |
| 90. | 3.50 | Liberty Elementary District / 24,826 |
| 91. | 3.50 | Washington Elementary District / 229,457 |
| 92. | 3.49 | Sahuarita Unified District / 27,400 |
| 93. | 3.49 | Tempe School District / 148,671 |
| 94. | 3.49 | Pima Unified District / 3,424 |
| 95. | 3.47 | Hayden-Winkelman Unified District / 1,275 |
| 96. | 3.46 | Safford Unified District / 15,991 |
| 97. | 3.43 | Crane Elementary District / 43,440 |
| 98. | 3.43 | Chandler Unified District / 231,764 |
| 99. | 3.42 | Heber-Overgaard Unified District / 3,969 |
| 100. | 3.42 | Sentinel Elementary District / 111 |
| 101. | 3.41 | Ajo Unified District / 3,787 |
| 102. | 3.41 | Nadaburg Unified School District / 8,546 |
| 103. | 3.39 | Osborn Elementary District / 38,505 |
| 104. | 3.39 | Litchfield Elementary District / 79,438 |
| 105. | 3.38 | Mesa Unified District / 468,084 |
| 106. | 3.35 | Peoria Unified School District / 218,476 |
| 107. | 3.35 | Dysart Unified District / 169,324 |
| 108. | 3.33 | Picacho Elementary District / 8,001 |
| 109. | 3.33 | Show Low Unified District / 15,516 |
| 110. | 3.33 | Deer Valley Unified District / 243,403 |
| 111. | 3.32 | Vail Unified District / 54,562 |
| 112. | 3.32 | Tempe Union High School District / 303,177 |
| 113. | 3.30 | Toltec Elementary District / 13,148 |
| 114. | 3.30 | St. David Unified District / 4,220 |
| 115. | 3.29 | Tucson Unified District / 477,922 |
| 116. | 3.29 | Miami Unified District / 8,468 |
| 117. | 3.28 | Flowing Wells Unified District / 29,583 |
| 118. | 3.24 | Vernon Elementary District / 1,926 |
| 119. | 3.24 | Yuma Union High School District / 195,266 |
| 120. | 3.24 | Marana Unified District / 89,418 |
| 121. | 3.24 | Morenci Unified District / 3,028 |
| 122. | 3.23 | Paradise Valley Unified District / 251,892 |
| 123. | 3.22 | Globe Unified District / 10,541 |
| 124. | 3.22 | McNeal Elementary District / 1,403 |
| 125. | 3.21 | Kyrene Elementary District / 154,506 |
| 126. | 3.20 | Eagle Elementary District / 50 |
| 127. | 3.19 | St. Johns Unified District / 3,929 |
| 128. | 3.18 | Topock Elementary District / 2,525 |
| 129. | 3.17 | Willcox Unified District / 7,579 |
| 130. | 3.15 | Mohawk Valley Elementary District / 1,677 |
| 131. | 3.13 | Tombstone Unified District / 7,646 |
| 132. | 3.13 | Flagstaff Unified District / 93,120 |
| 133. | 3.10 | Kingman Unified School District / 68,561 |
| 134. | 3.10 | Bowie Unified District / 463 |
| 135. | 3.10 | Humboldt Unified District / 52,054 |
| 136. | 3.09 | Cottonwood-Oak Creek Elementary District / 30,677 |
| 137. | 3.08 | Mingus Union High School District / 34,444 |
| 138. | 3.06 | Elfrida Elementary District / 910 |
| 139. | 3.06 | Williams Unified District / 5,464 |
| 140. | 3.06 | Camp Verde Unified District / 11,295 |
| 141. | 3.06 | Kirkland Elementary District / 1,276 |
| 142. | 3.06 | Valentine Elementary District / 320 |
| 143. | 3.05 | Beaver Creek Elementary District / 5,652 |
| 144. | 3.05 | Palominas Elementary District / 10,560 |
| 145. | 3.04 | Ash Fork Joint Unified District / 2,031 |
| 146. | 3.04 | Madison Elementary District / 56,191 |
| 147. | 3.03 | Sierra Vista Unified District / 49,181 |
| 148. | 3.02 | Hillside Elementary District / 139 |
| 149. | 3.02 | Blue Ridge Unified District / 14,337 |
| 150. | 3.00 | Hyder Elementary District / 439 |
| 150. | 3.00 | Rucker Elementary District / 33 |
| 152. | 3.00 | Amphitheater Unified District / 134,383 |
| 153. | 2.99 | Bullhead City School District / 39,983 |
| 154. | 2.99 | Clarkdale-Jerome Elementary District / 3,767 |
| 155. | 2.97 | Colorado River Union High School District / 63,402 |
| 156. | 2.97 | Tanque Verde Unified District / 11,845 |
| 157. | 2.97 | Chino Valley Unified District / 21,274 |
| 158. | 2.96 | Yuma Elementary District / 100,798 |
| 159. | 2.95 | Parker Unified School District / 10,263 |
| 160. | 2.95 | Wenden Elementary District / 741 |
| 161. | 2.95 | Scottsdale Unified District / 226,958 |
| 162. | 2.93 | Clifton Unified District / 2,909 |
| 163. | 2.92 | Mohave Valley Elementary District / 20,894 |
| 164. | 2.91 | Canon Elementary District / 2,661 |
| 165. | 2.90 | Duncan Unified District / 2,767 |
| 166. | 2.87 | Payson Unified District / 21,510 |
| 167. | 2.86 | Maine Consolidated School District / 1,543 |
| 168. | 2.86 | Skull Valley Elementary District / 600 |
| 169. | 2.86 | Antelope Union High School District / 6,187 |
| 170. | 2.85 | Bisbee Unified District / 6,705 |
| 171. | 2.84 | Lake Havasu Unified District / 55,833 |
| 172. | 2.80 | Apache Junction Unified District / 56,829 |
| 173. | 2.78 | Mayer Unified District / 5,602 |
| 174. | 2.76 | Catalina Foothills Unified District / 30,821 |
| 175. | 2.75 | Redington Elementary District / 94 |
| 176. | 2.74 | Hackberry School District / 1,223 |
| 177. | 2.74 | Benson Unified School District / 7,238 |
| 178. | 2.74 | Valley Union High School District / 3,518 |
| 179. | 2.73 | Wellton Elementary District / 4,071 |
| 180. | 2.73 | San Simon Unified District / 758 |
| 181. | 2.71 | Cochise Elementary District / 220 |
| 182. | 2.70 | Grand Canyon Unified District / 1,707 |
| 183. | 2.70 | Prescott Unified District / 55,352 |
| 184. | 2.70 | Empire Elementary District / 505 |
| 185. | 2.69 | Cave Creek Unified District / 55,010 |
| 186. | 2.69 | Salome Consolidated Elementary District / 2,899 |
| 187. | 2.68 | Seligman Unified District / 1,197 |
| 188. | 2.67 | Pearce Elementary District / 2,017 |
| 189. | 2.64 | Fountain Hills Unified District / 23,488 |
| 190. | 2.64 | Yucca Elementary District / 487 |
| 191. | 2.63 | Wickenburg Unified District / 11,718 |
| 192. | 2.59 | Yarnell Elementary District / 1,211 |
| 193. | 2.59 | Morristown Elementary District / 1,485 |
| 194. | 2.56 | Mobile Elementary District / 74 |
| 195. | 2.55 | Walnut Grove Elementary District / 73 |
| 196. | 2.55 | Owens-Whitney Elementary District / 628 |
| 197. | 2.54 | Young Elementary School District / 603 |
| 198. | 2.53 | Sedona-Oak Creek Joint Unified District / 14,547 |
| 199. | 2.51 | Sonoita Elementary District / 1,801 |
| 200. | 2.50 | Ash Creek Elementary District / 591 |
| 201. | 2.49 | Patagonia Union High School District / 3,163 |
| 202. | 2.48 | Chevelon Butte School District / 542 |
| 203. | 2.47 | Oracle Elementary District / 13,855 |
| 204. | 2.47 | Williamson Valley Elementary School District / 506 |
| 205. | 2.47 | Patagonia Elementary District / 1,362 |
| 206. | 2.40 | Bicentennial Union High School District / 10,085 |
| 207. | 2.39 | Congress Elementary District / 1,631 |
| 208. | 2.38 | Tonto Basin Elementary District / 1,647 |
| 209. | 2.25 | Alpine Elementary District / 401 |
| 210. | 2.22 | Bouse Elementary District / 811 |
| 211. | 2.20 | Quartzsite Elementary District / 5,634 |
| 212. | 2.19 | Continental Elementary District / 27,303 |
| 213. | 2.17 | Apache Elementary District / 132 |
| 214. | 2.13 | Pine Strawberry Elementary District / 1,604 |
| 215. | 2.08 | Crown King Elementary District / 111 |
| 216. | 2.00 | San Fernando Elementary District / 55 |
| 217. | 1.93 | Klondyke Elementary District / 49 |
| 218. | 1.84 | Blue Elementary District / 46 |
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.
