| Rank | Average Household Size ▼ | School District / Population |
| 1. | 3.81 | Fremont County School District 14 / 2,942 |
| 2. | 3.34 | Fremont County School District 38 / 1,664 |
| 3. | 3.24 | Fremont County School District 21 / 1,700 |
| 4. | 3.15 | Sublette County School District 9 / 3,992 |
| 5. | 2.82 | Lincoln County School District 2 / 12,943 |
| 6. | 2.82 | Uinta County School District 1 / 14,928 |
| 7. | 2.75 | Sublette County School District 1 / 6,038 |
| 8. | 2.74 | Teton County School District 1 / 20,802 |
| 9. | 2.71 | Big Horn County School District 1 / 2,809 |
| 10. | 2.70 | Laramie County School District 2 / 4,788 |
| 11. | 2.69 | Sweetwater County School District 2 / 13,285 |
| 12. | 2.69 | Uinta County School District 4 / 2,910 |
| 13. | 2.68 | Campbell County School District 1 / 43,179 |
| 14. | 2.68 | Big Horn County School District 2 / 3,570 |
| 15. | 2.67 | Uinta County School District 6 / 2,699 |
| 16. | 2.55 | Converse County School District 2 / 4,032 |
| 17. | 2.46 | Sweetwater County School District 1 / 28,855 |
| 18. | 2.43 | Laramie County School District 1 / 84,433 |
| 19. | 2.42 | Sheridan County School District 1 / 4,908 |
| 20. | 2.42 | Washakie County School District 1 / 7,495 |
| 21. | 2.42 | Natrona County School District 1 / 73,520 |
| 22. | 2.41 | Crook County School District 1 / 6,761 |
| 23. | 2.41 | Fremont County School District 25 / 16,687 |
| 24. | 2.39 | Big Horn County School District 3 / 3,151 |
| 25. | 2.36 | Carbon County School District 1 / 10,824 |
| 26. | 2.33 | Converse County School District 1 / 9,372 |
| 27. | 2.33 | Platte County School District 2 / 1,507 |
| 28. | 2.32 | Lincoln County School District 1 / 3,796 |
| 29. | 2.32 | Fremont County School District 6 / 2,084 |
| 30. | 2.32 | Park County School District 1 / 11,509 |
| 31. | 2.31 | Platte County School District 1 / 7,233 |
| 32. | 2.30 | Goshen County School District 1 / 12,695 |
| 33. | 2.28 | Park County School District 16 / 988 |
| 34. | 2.28 | Fremont County School District 1 / 10,829 |
| 35. | 2.27 | Niobrara County School District 1 / 2,494 |
| 36. | 2.26 | Sheridan County School District 2 / 23,100 |
| 37. | 2.24 | Park County School District 6 / 14,609 |
| 38. | 2.23 | Fremont County School District 24 / 1,477 |
| 39. | 2.22 | Albany County School District 1 / 34,926 |
| 40. | 2.21 | Weston County School District 1 / 5,757 |
| 41. | 2.20 | Sheridan County School District 3 / 372 |
| 42. | 2.20 | Johnson County School District 1 / 8,307 |
| 43. | 2.14 | Big Horn County School District 4 / 1,999 |
| 44. | 2.14 | Hot Springs County School District 1 / 4,720 |
| 45. | 2.13 | Carbon County School District 2 / 4,926 |
| 46. | 2.11 | Weston County School District 7 / 1,309 |
| 47. | 2.11 | Washakie County School District 2 / 776 |
| 48. | 1.95 | Name N/A / 387 |
| 49. | 1.87 | Fremont County School District 2 / 1,492 |
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.
