| Rank | Welsh as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 5.9% | Big Horn County School District 1 / 3,118 |
| 2. | 4.3% | Sublette County School District 9 / 3,677 |
| 3. | 3.9% | Laramie County School District 2 / 5,422 |
| 4. | 3.7% | Weston County School District 7 / 1,379 |
| 5. | 3.4% | Big Horn County School District 2 / 3,368 |
| 6. | 3.1% | Uinta County School District 4 / 3,446 |
| 7. | 2.9% | Sublette County School District 1 / 7,284 |
| 8. | 2.4% | Uinta County School District 1 / 14,292 |
| 9. | 2.2% | Sheridan County School District 2 / 24,367 |
| 9. | 2.2% | Sweetwater County School District 2 / 13,824 |
| 11. | 2.1% | Washakie County School District 2 / 743 |
| 12. | 2.1% | Fremont County School District 1 / 11,483 |
| 12. | 2.1% | Uinta County School District 6 / 3,251 |
| 14. | 2.0% | Hot Springs County School District 1 / 4,826 |
| 15. | 1.9% | Weston County School District 1 / 5,756 |
| 16. | 1.8% | Lincoln County School District 2 / 13,675 |
| 17. | 1.8% | Converse County School District 2 / 4,169 |
| 18. | 1.8% | Fremont County School District 24 / 1,498 |
| 19. | 1.6% | Washakie County School District 1 / 7,701 |
| 20. | 1.5% | Sheridan County School District 3 / 368 |
| 21. | 1.4% | Carbon County School District 1 / 10,942 |
| 22. | 1.4% | Fremont County School District 2 / 1,650 |
| 23. | 1.4% | Big Horn County School District 3 / 3,327 |
| 24. | 1.2% | Big Horn County School District 4 / 2,107 |
| 25. | 1.2% | Sweetwater County School District 1 / 30,629 |
| 26. | 1.1% | Park County School District 1 / 12,095 |
| 27. | 1.1% | Laramie County School District 1 / 88,990 |
| 28. | 1.1% | Park County School District 6 / 15,343 |
| 29. | 0.9% | Albany County School District 1 / 37,220 |
| 30. | 0.9% | Natrona County School District 1 / 78,667 |
| 31. | 0.9% | Fremont County School District 25 / 17,466 |
| 31. | 0.9% | Converse County School District 1 / 9,822 |
| 33. | 0.8% | Teton County School District 1 / 21,956 |
| 34. | 0.8% | Lincoln County School District 1 / 3,727 |
| 35. | 0.7% | Fremont County School District 6 / 2,299 |
| 36. | 0.7% | Name N/A / 1,998 |
| 37. | 0.7% | Crook County School District 1 / 7,155 |
| 38. | 0.6% | Goshen County School District 1 / 13,416 |
| 39. | 0.5% | Fremont County School District 38 / 1,586 |
| 40. | 0.5% | Johnson County School District 1 / 8,599 |
| 41. | 0.5% | Platte County School District 1 / 7,221 |
| 42. | 0.5% | Campbell County School District 1 / 47,448 |
| 43. | 0.4% | Carbon County School District 2 / 4,995 |
| 44. | 0.4% | Niobrara County School District 1 / 2,506 |
| 44. | 0.4% | Sheridan County School District 1 / 4,843 |
| 46. | 0.3% | Fremont County School District 14 / 2,533 |
| 47. | 0.3% | Park County School District 16 / 792 |
| 48. | 0.1% | Platte County School District 2 / 1,634 |
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.
