| Rank | Welsh as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 3.9% | Sublette County School District 9 / 3,908 |
| 2. | 3.7% | Uinta County School District 4 / 3,199 |
| 3. | 3.6% | Big Horn County School District 1 / 2,993 |
| 4. | 3.3% | Converse County School District 2 / 4,418 |
| 5. | 2.8% | Big Horn County School District 2 / 3,613 |
| 6. | 2.5% | Carbon County School District 2 / 4,871 |
| 7. | 2.4% | Uinta County School District 1 / 14,712 |
| 8. | 2.3% | Sweetwater County School District 2 / 13,499 |
| 9. | 2.1% | Weston County School District 1 / 5,698 |
| 10. | 2.1% | Washakie County School District 2 / 663 |
| 11. | 2.1% | Fremont County School District 1 / 11,112 |
| 12. | 2.0% | Carbon County School District 1 / 11,026 |
| 12. | 2.0% | Uinta County School District 6 / 3,031 |
| 14. | 1.9% | Fremont County School District 24 / 1,565 |
| 15. | 1.7% | Lincoln County School District 2 / 13,638 |
| 16. | 1.7% | Sheridan County School District 2 / 23,641 |
| 17. | 1.7% | Lincoln County School District 1 / 3,625 |
| 18. | 1.7% | Park County School District 6 / 14,647 |
| 19. | 1.6% | Big Horn County School District 4 / 1,963 |
| 20. | 1.4% | Sublette County School District 1 / 6,854 |
| 21. | 1.2% | Albany County School District 1 / 36,186 |
| 22. | 1.2% | Park County School District 1 / 12,148 |
| 23. | 1.1% | Teton County School District 1 / 21,326 |
| 24. | 1.1% | Name N/A / 475 |
| 25. | 1.1% | Fremont County School District 6 / 2,300 |
| 26. | 1.0% | Sweetwater County School District 1 / 30,275 |
| 26. | 1.0% | Hot Springs County School District 1 / 4,791 |
| 28. | 1.0% | Natrona County School District 1 / 75,876 |
| 29. | 1.0% | Washakie County School District 1 / 7,762 |
| 30. | 0.9% | Laramie County School District 1 / 86,728 |
| 30. | 0.9% | Converse County School District 1 / 9,361 |
| 32. | 0.9% | Goshen County School District 1 / 13,192 |
| 33. | 0.6% | Fremont County School District 25 / 17,259 |
| 34. | 0.6% | Sheridan County School District 3 / 383 |
| 35. | 0.6% | Big Horn County School District 3 / 3,166 |
| 35. | 0.6% | Campbell County School District 1 / 45,840 |
| 37. | 0.5% | Crook County School District 1 / 7,036 |
| 38. | 0.5% | Fremont County School District 38 / 1,615 |
| 39. | 0.4% | Platte County School District 1 / 7,287 |
| 39. | 0.4% | Fremont County School District 14 / 2,585 |
| 41. | 0.4% | Johnson County School District 1 / 8,564 |
| 42. | 0.3% | Platte County School District 2 / 1,475 |
| 42. | 0.3% | Sheridan County School District 1 / 5,073 |
| 44. | 0.2% | Niobrara County School District 1 / 2,478 |
| 45. | 0.2% | Weston County School District 7 / 1,454 |
| 46. | 0.2% | Fremont County School District 2 / 1,785 |
| 47. | 0.0% | Laramie County School District 2 / 4,991 |
Please note that we only rank locations with 'Welsh as First Ancestry Population Percentage' data. The rank above might not be a complete list. Locations without 'Welsh as First Ancestry Population Percentage' 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.
