| Rank | Irish as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 26.6% | Fremont County School District 24 / 1,477 |
| 2. | 25.4% | Johnson County School District 1 / 8,307 |
| 3. | 24.5% | Converse County School District 1 / 9,372 |
| 4. | 23.8% | Weston County School District 1 / 5,757 |
| 5. | 23.2% | Fremont County School District 2 / 1,492 |
| 6. | 23.2% | Platte County School District 2 / 1,507 |
| 6. | 23.2% | Sheridan County School District 3 / 372 |
| 8. | 21.9% | Park County School District 1 / 11,509 |
| 9. | 20.0% | Washakie County School District 2 / 776 |
| 10. | 20.0% | Niobrara County School District 1 / 2,494 |
| 11. | 19.9% | Park County School District 16 / 988 |
| 12. | 19.6% | Campbell County School District 1 / 43,179 |
| 13. | 18.9% | Carbon County School District 2 / 4,926 |
| 14. | 18.7% | Sheridan County School District 2 / 23,100 |
| 15. | 18.1% | Weston County School District 7 / 1,309 |
| 16. | 17.9% | Platte County School District 1 / 7,233 |
| 17. | 17.7% | Converse County School District 2 / 4,032 |
| 18. | 17.6% | Laramie County School District 1 / 84,433 |
| 19. | 17.5% | Goshen County School District 1 / 12,695 |
| 20. | 17.4% | Hot Springs County School District 1 / 4,720 |
| 21. | 17.3% | Natrona County School District 1 / 73,520 |
| 22. | 17.0% | Albany County School District 1 / 34,926 |
| 23. | 17.0% | Fremont County School District 6 / 2,084 |
| 24. | 16.9% | Crook County School District 1 / 6,761 |
| 25. | 16.5% | Uinta County School District 4 / 2,910 |
| 26. | 16.5% | Sheridan County School District 1 / 4,908 |
| 27. | 15.7% | Fremont County School District 25 / 16,687 |
| 28. | 15.6% | Carbon County School District 1 / 10,824 |
| 29. | 15.3% | Lincoln County School District 1 / 3,796 |
| 30. | 15.2% | Uinta County School District 6 / 2,699 |
| 31. | 15.0% | Sweetwater County School District 1 / 28,855 |
| 32. | 14.4% | Laramie County School District 2 / 4,788 |
| 33. | 14.3% | Teton County School District 1 / 20,802 |
| 34. | 13.5% | Sublette County School District 1 / 6,038 |
| 35. | 13.4% | Big Horn County School District 3 / 3,151 |
| 36. | 13.3% | Big Horn County School District 2 / 3,570 |
| 37. | 13.3% | Park County School District 6 / 14,609 |
| 38. | 12.9% | Sweetwater County School District 2 / 13,285 |
| 39. | 12.7% | Fremont County School District 1 / 10,829 |
| 40. | 12.0% | Uinta County School District 1 / 14,928 |
| 41. | 11.9% | Washakie County School District 1 / 7,495 |
| 42. | 10.6% | Big Horn County School District 1 / 2,809 |
| 43. | 10.3% | Sublette County School District 9 / 3,992 |
| 44. | 8.5% | Name N/A / 387 |
| 45. | 8.1% | Big Horn County School District 4 / 1,999 |
| 46. | 5.8% | Lincoln County School District 2 / 12,943 |
| 47. | 5.7% | Fremont County School District 38 / 1,664 |
| 48. | 1.6% | Fremont County School District 14 / 2,942 |
| 49. | 1.4% | Fremont County School District 21 / 1,700 |
Please note that we only rank locations with 'Irish as First Ancestry Population Percentage' data. The rank above might not be a complete list. Locations without 'Irish 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.
