| Rank | Median Age ▲ | School District / Population |
| 1. | 22.20 | Fremont County School District 14 / 2,554 |
| 2. | 24.50 | Albany County School District 1 / 32,985 |
| 3. | 26.00 | Fremont County School District 21 / 1,653 |
| 4. | 29.80 | Fremont County School District 38 / 1,777 |
| 5. | 31.70 | Campbell County School District 1 / 40,290 |
| 6. | 31.90 | Sweetwater County School District 2 / 13,014 |
| 7. | 32.80 | Uinta County School District 1 / 14,549 |
| 8. | 34.00 | Uinta County School District 6 / 2,773 |
| 9. | 34.10 | Sweetwater County School District 1 / 26,035 |
| 10. | 34.60 | Big Horn County School District 2 / 3,648 |
| 11. | 34.70 | Teton County School District 1 / 20,067 |
| 12. | 35.30 | Lincoln County School District 1 / 4,360 |
| 13. | 35.60 | Sublette County School District 9 / 3,609 |
| 13. | 35.60 | Laramie County School District 1 / 82,514 |
| 15. | 35.80 | Carbon County School District 1 / 10,737 |
| 16. | 36.30 | Natrona County School District 1 / 71,817 |
| 17. | 37.20 | Uinta County School District 4 / 2,797 |
| 18. | 37.60 | Park County School District 1 / 11,164 |
| 19. | 37.70 | Converse County School District 1 / 8,949 |
| 20. | 37.80 | Lincoln County School District 2 / 11,276 |
| 21. | 38.60 | Fremont County School District 25 / 15,959 |
| 22. | 40.00 | Fremont County School District 1 / 10,427 |
| 23. | 40.70 | Converse County School District 2 / 4,010 |
| 24. | 41.30 | Washakie County School District 1 / 7,048 |
| 25. | 41.80 | Laramie County School District 2 / 4,378 |
| 26. | 42.20 | Sheridan County School District 2 / 22,928 |
| 26. | 42.20 | Big Horn County School District 1 / 2,722 |
| 28. | 42.30 | Fremont County School District 24 / 1,432 |
| 29. | 42.50 | Sheridan County School District 1 / 4,798 |
| 30. | 43.40 | Sublette County School District 1 / 4,741 |
| 30. | 43.40 | Weston County School District 1 / 5,435 |
| 32. | 43.90 | Goshen County School District 1 / 12,039 |
| 32. | 43.90 | Crook County School District 1 / 6,338 |
| 34. | 44.00 | Weston County School District 7 / 1,330 |
| 35. | 44.10 | Johnson County School District 1 / 8,084 |
| 36. | 44.40 | Big Horn County School District 4 / 2,211 |
| 37. | 44.80 | Big Horn County School District 3 / 2,873 |
| 37. | 44.80 | Park County School District 16 / 1,106 |
| 39. | 45.50 | Park County School District 6 / 14,599 |
| 40. | 45.80 | Platte County School District 1 / 7,006 |
| 41. | 45.90 | Niobrara County School District 1 / 2,344 |
| 41. | 45.90 | Platte County School District 2 / 1,398 |
| 43. | 46.90 | Sheridan County School District 3 / 336 |
| 44. | 48.30 | Fremont County School District 6 / 2,182 |
| 45. | 49.00 | Hot Springs County School District 1 / 4,523 |
| 46. | 49.60 | Fremont County School District 2 / 1,448 |
| 47. | 51.00 | Carbon County School District 2 / 4,701 |
| 48. | 51.30 | Washakie County School District 2 / 743 |
| 49. | 52.00 | Name N/A / 242 |
Please note that we only rank locations with 'Median Age' data. The rank above might not be a complete list. Locations without 'Median Age' 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.
