| Rank | Average Family Size ▼ | School District / Population |
| 1. | 4.08 | Manassas Park City Public Schools / 14,992 |
| 2. | 3.95 | Manassas City Public Schools / 40,436 |
| 3. | 3.69 | Prince William County Public Schools / 422,263 |
| 4. | 3.57 | Quantico Marine Corps Center School District / 8,607 |
| 5. | 3.57 | Dahlgren Department of Defense School District / 674 |
| 6. | 3.55 | Loudoun County Public Schools / 338,916 |
| 7. | 3.47 | Stafford County Public Schools / 132,574 |
| 8. | 3.47 | Falls Church City Public Schools / 13,074 |
| 9. | 3.47 | King George County Public Schools / 23,903 |
| 10. | 3.43 | Fairfax County Public Schools / 1,117,072 |
| 11. | 3.42 | Petersburg City Public Schools / 32,439 |
| 12. | 3.42 | Spotsylvania County Public Schools / 126,200 |
| 13. | 3.42 | Fauquier County Public Schools / 66,726 |
| 14. | 3.40 | Norton City Public Schools / 4,015 |
| 15. | 3.39 | Norfolk City Public Schools / 244,745 |
| 16. | 3.39 | Essex County Public Schools / 11,166 |
| 17. | 3.39 | Prince George County Public Schools / 36,792 |
| 18. | 3.38 | Chesterfield County Public Schools / 324,337 |
| 19. | 3.36 | Richmond City Public Schools / 211,063 |
| 20. | 3.35 | Hopewell City Public Schools / 22,375 |
| 21. | 3.33 | Culpeper County Public Schools / 47,910 |
| 22. | 3.30 | Suffolk City Public Schools / 85,477 |
| 23. | 3.30 | Fredericksburg City Public Schools / 26,632 |
| 24. | 3.29 | Westmoreland County Public Schools / 14,053 |
| 25. | 3.28 | Chesapeake City Public Schools / 228,168 |
| 26. | 3.27 | Dinwiddie County Public Schools / 27,993 |
| 27. | 3.27 | Richmond County Public Schools / 9,072 |
| 28. | 3.27 | Nottoway County Public Schools / 15,756 |
| 29. | 3.26 | Covington City Public Schools / 5,853 |
| 30. | 3.26 | Portsmouth City Public Schools / 96,007 |
| 31. | 3.26 | Winchester City Public Schools / 27,031 |
| 32. | 3.26 | Charlotte County Public Schools / 12,399 |
| 33. | 3.26 | Newport News City Public Schools / 181,362 |
| 34. | 3.25 | Harrisonburg City Public Schools / 50,821 |
| 35. | 3.24 | Hampton City Public Schools / 136,904 |
| 36. | 3.24 | Fairfax City Public Schools / 23,507 |
| 37. | 3.24 | Colonial Beach Town Public Schools / 3,465 |
| 38. | 3.23 | Orange County Public Schools / 34,239 |
| 39. | 3.22 | Russell County Public Schools / 28,444 |
| 40. | 3.22 | Henrico County Public Schools / 314,878 |
| 41. | 3.22 | Virginia Beach City Public Schools / 445,623 |
| 42. | 3.20 | Alexandria City Public Schools / 146,422 |
| 43. | 3.19 | Charles City County Public Schools / 7,154 |
| 44. | 3.19 | Frederick County Public Schools / 80,377 |
| 45. | 3.19 | Floyd County Public Schools / 15,452 |
| 46. | 3.19 | Warren County Public Schools / 38,142 |
| 47. | 3.18 | Greene County Public Schools / 18,766 |
| 48. | 3.18 | Brunswick County Public Schools / 16,961 |
| 49. | 3.17 | Arlington County Public Schools / 220,173 |
| 50. | 3.15 | Amelia County Public Schools / 12,764 |
| 51. | 3.15 | Radford City Public Schools / 16,993 |
| 52. | 3.14 | Louisa County Public Schools / 33,743 |
| 53. | 3.14 | Lee County Public Schools / 25,380 |
| 54. | 3.14 | Charlottesville City Public Schools / 44,505 |
| 55. | 3.14 | Colonial Heights City Public Schools / 17,542 |
| 56. | 3.13 | Halifax County Public Schools / 35,704 |
| 57. | 3.13 | Surry County Public Schools / 6,885 |
| 58. | 3.13 | Lynchburg City Public Schools / 77,626 |
| 59. | 3.13 | Martinsville City Public Schools / 13,745 |
| 60. | 3.12 | York County Public Schools / 65,808 |
| 61. | 3.11 | Albemarle County Public Schools / 101,883 |
| 62. | 3.11 | Hanover County Public Schools / 100,689 |
| 63. | 3.10 | Gloucester County Public Schools / 36,938 |
| 64. | 3.10 | Amherst County Public Schools / 32,237 |
| 65. | 3.09 | Dickenson County Public Schools / 15,612 |
| 66. | 3.09 | Mecklenburg County Public Schools / 31,913 |
| 67. | 3.08 | Rockingham County Public Schools / 77,345 |
| 68. | 3.08 | Clarke County Public Schools / 14,273 |
| 69. | 3.08 | Roanoke City Public Schools / 97,949 |
| 70. | 3.08 | Waynesboro City Public Schools / 21,177 |
| 71. | 3.07 | Madison County Public Schools / 13,208 |
| 72. | 3.07 | Galax City Public Schools / 6,981 |
| 73. | 3.07 | King William County Public Schools / 12,726 |
| 74. | 3.06 | Poquoson City Public Schools / 12,103 |
| 75. | 3.06 | Campbell County Public Schools / 54,833 |
| 76. | 3.05 | Lunenburg County Public Schools / 12,667 |
| 77. | 3.05 | Wythe County Public Schools / 29,259 |
| 78. | 3.05 | Northampton County Public Schools / 12,254 |
| 79. | 3.05 | Williamsburg City Public Schools / 14,401 |
| 80. | 3.05 | Isle of Wight County Public Schools / 35,518 |
| 81. | 3.05 | King and Queen County Public Schools / 7,073 |
| 82. | 3.04 | Montgomery County Public Schools / 95,808 |
| 83. | 3.04 | Buckingham County Public Schools / 17,072 |
| 84. | 3.04 | New Kent County Public Schools / 19,187 |
| 85. | 3.04 | Cumberland County Public Schools / 9,916 |
| 86. | 3.03 | Emporia City Public Schools / 5,682 |
| 87. | 3.03 | Prince Edward County Public Schools / 23,140 |
| 88. | 3.02 | Bedford County Public Schools / 75,607 |
| 89. | 3.02 | Wise County Public Schools / 40,872 |
| 90. | 3.01 | Craig County Public Schools / 5,206 |
| 91. | 3.01 | Fluvanna County Public Schools / 25,945 |
| 92. | 3.01 | Smyth County Public Schools / 31,876 |
| 93. | 3.00 | Southampton County Public Schools / 18,364 |
| 94. | 3.00 | Powhatan County Public Schools / 28,193 |
| 95. | 3.00 | Salem City Public Schools / 25,120 |
| 96. | 3.00 | Roanoke County Public Schools / 93,194 |
| 97. | 2.99 | Patrick County Public Schools / 18,365 |
| 98. | 2.99 | Page County Public Schools / 23,905 |
| 99. | 2.98 | Shenandoah County Public Schools / 42,545 |
| 100. | 2.98 | James City County Public Schools / 69,832 |
| 101. | 2.98 | Caroline County Public Schools / 29,057 |
| 102. | 2.98 | Alleghany County Public Schools / 16,133 |
| 103. | 2.97 | Appomattox County Public Schools / 15,137 |
| 104. | 2.97 | Augusta County Public Schools / 73,707 |
| 105. | 2.96 | Middlesex County Public Schools / 10,817 |
| 106. | 2.96 | Franklin City Public Schools / 8,534 |
| 107. | 2.95 | Carroll County Public Schools / 29,881 |
| 108. | 2.95 | Rockbridge County Public Schools / 22,367 |
| 109. | 2.95 | Staunton City Public Schools / 24,132 |
| 110. | 2.94 | Danville City Public Schools / 42,704 |
| 111. | 2.93 | Henry County Public Schools / 52,960 |
| 112. | 2.93 | Botetourt County Public Schools / 33,105 |
| 113. | 2.93 | Buchanan County Public Schools / 23,683 |
| 114. | 2.92 | Nelson County Public Schools / 14,892 |
| 115. | 2.92 | Scott County Public Schools / 22,781 |
| 116. | 2.92 | Pittsylvania County Public Schools / 62,955 |
| 117. | 2.92 | Tazewell County Public Schools / 44,331 |
| 118. | 2.91 | Greensville County Public Schools / 11,911 |
| 119. | 2.90 | Buena Vista City Public Schools / 6,683 |
| 120. | 2.89 | Washington County Public Schools / 54,833 |
| 121. | 2.87 | West Point Town Public Schools / 3,319 |
| 122. | 2.86 | Franklin County Public Schools / 56,360 |
| 123. | 2.85 | Grayson County Public Schools / 15,255 |
| 124. | 2.85 | Giles County Public Schools / 17,025 |
| 125. | 2.83 | Accomack County Public Schools / 33,165 |
| 126. | 2.82 | Name N/A / 7,114 |
| 126. | 2.82 | Lexington City Public Schools / 7,114 |
| 128. | 2.82 | Rappahannock County Public Schools / 7,446 |
| 129. | 2.80 | Goochland County Public Schools / 21,627 |
| 130. | 2.78 | Bland County Public Schools / 6,727 |
| 131. | 2.77 | Mathews County Public Schools / 8,923 |
| 132. | 2.76 | Bristol City Public Schools / 17,595 |
| 133. | 2.75 | Pulaski County Public Schools / 34,630 |
| 134. | 2.75 | Lancaster County Public Schools / 11,224 |
| 135. | 2.67 | Northumberland County Public Schools / 12,320 |
| 136. | 2.65 | Sussex County Public Schools / 11,923 |
| 137. | 2.63 | Bath County Public Schools / 4,644 |
| 138. | 2.59 | Highland County Public Schools / 2,258 |
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.
