| Rank | Average Household Size ▼ | School District / Population |
| 1. | 2.61 | Jefferson County School District / 53,498 |
| 2. | 2.59 | Berkeley County School District / 104,169 |
| 3. | 2.51 | Putnam County School District / 55,486 |
| 4. | 2.50 | Clay County School District / 9,386 |
| 5. | 2.47 | Boone County School District / 24,629 |
| 5. | 2.47 | Lincoln County School District / 21,720 |
| 7. | 2.46 | Barbour County School District / 16,589 |
| 8. | 2.45 | Wyoming County School District / 23,796 |
| 9. | 2.44 | Pleasants County School District / 7,605 |
| 9. | 2.44 | Hampshire County School District / 23,964 |
| 11. | 2.43 | Wayne County School District / 42,481 |
| 11. | 2.43 | Jackson County School District / 29,211 |
| 11. | 2.43 | Logan County School District / 36,743 |
| 14. | 2.42 | Taylor County School District / 16,895 |
| 14. | 2.42 | Preston County School District / 33,520 |
| 16. | 2.41 | Doddridge County School District / 8,202 |
| 17. | 2.40 | Mingo County School District / 26,839 |
| 17. | 2.40 | Webster County School District / 9,154 |
| 17. | 2.40 | Upshur County School District / 24,254 |
| 17. | 2.40 | Hardy County School District / 14,025 |
| 21. | 2.39 | Roane County School District / 14,926 |
| 21. | 2.39 | Mason County School District / 27,324 |
| 21. | 2.39 | Morgan County School District / 17,541 |
| 21. | 2.39 | Grant County School District / 11,937 |
| 21. | 2.39 | Wirt County School District / 5,717 |
| 21. | 2.39 | Harrison County School District / 69,099 |
| 21. | 2.39 | Mineral County School District / 28,212 |
| 28. | 2.38 | Monroe County School District / 13,502 |
| 28. | 2.38 | Nicholas County School District / 26,233 |
| 30. | 2.37 | Tyler County School District / 9,208 |
| 30. | 2.37 | Ritchie County School District / 10,449 |
| 32. | 2.36 | Braxton County School District / 14,523 |
| 32. | 2.36 | Wetzel County School District / 16,583 |
| 32. | 2.36 | McDowell County School District / 22,113 |
| 32. | 2.36 | Raleigh County School District / 78,859 |
| 36. | 2.35 | Marshall County School District / 33,107 |
| 36. | 2.35 | Wood County School District / 86,956 |
| 36. | 2.35 | Lewis County School District / 16,372 |
| 36. | 2.35 | Fayette County School District / 46,039 |
| 40. | 2.34 | Gilmer County School District / 8,693 |
| 41. | 2.33 | Calhoun County School District / 7,627 |
| 42. | 2.32 | Randolph County School District / 29,405 |
| 42. | 2.32 | Marion County School District / 56,418 |
| 42. | 2.32 | Brooke County School District / 24,069 |
| 45. | 2.30 | Mercer County School District / 62,264 |
| 46. | 2.29 | Hancock County School District / 30,676 |
| 46. | 2.29 | Tucker County School District / 7,141 |
| 48. | 2.28 | Pendleton County School District / 7,695 |
| 49. | 2.26 | Summers County School District / 13,927 |
| 49. | 2.26 | Kanawha County School District / 193,063 |
| 49. | 2.26 | Greenbrier County School District / 35,480 |
| 52. | 2.24 | Pocahontas County School District / 8,719 |
| 52. | 2.24 | Cabell County School District / 96,319 |
| 52. | 2.24 | Monongalia School District / 96,189 |
| 55. | 2.21 | Ohio County School District / 44,443 |
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.
