Local Data Search
A total of 102 results found. Show Results on Map.
| Rank | Irish as First Ancestry Population Percentage ▼ | County / Population |
| 1. | 29.1% | Hardin, IL / 4,226 |
| 2. | 28.4% | Gallatin, IL / 5,439 |
| 3. | 28.2% | Pope, IL / 4,362 |
| 4. | 26.6% | Saline, IL / 24,876 |
| 5. | 23.2% | Grundy, IL / 50,173 |
| 6. | 22.7% | Henderson, IL / 7,074 |
| 7. | 21.9% | White, IL / 14,549 |
| 8. | 21.7% | Edgar, IL / 18,171 |
| 9. | 21.7% | Menard, IL / 12,658 |
| 10. | 21.6% | Greene, IL / 13,677 |
| 11. | 21.4% | Stark, IL / 5,888 |
| 12. | 21.2% | Jo Daviess, IL / 22,427 |
| 13. | 20.9% | Piatt, IL / 16,552 |
| 14. | 20.8% | La Salle, IL / 112,698 |
| 15. | 20.7% | Mercer, IL / 16,204 |
| 16. | 20.5% | Lee, IL / 35,248 |
| 17. | 20.3% | Massac, IL / 15,148 |
| 18. | 19.9% | Macoupin, IL / 47,229 |
| 19. | 19.7% | Jersey, IL / 22,751 |
| 20. | 19.7% | Mchenry, IL / 307,888 |
| 21. | 19.6% | Putnam, IL / 5,895 |
| 22. | 19.6% | Clark, IL / 16,240 |
| 23. | 19.2% | Ford, IL / 13,906 |
| 24. | 19.1% | Marion, IL / 38,922 |
| 24. | 19.1% | Will, IL / 682,108 |
| 26. | 19.1% | Williamson, IL / 66,808 |
| 27. | 19.0% | Franklin, IL / 39,774 |
| 28. | 18.9% | Coles, IL / 53,655 |
| 29. | 18.8% | Hamilton, IL / 8,371 |
| 30. | 18.7% | Dekalb, IL / 104,919 |
| 31. | 18.6% | Logan, IL / 30,047 |
| 32. | 18.6% | Monroe, IL / 33,373 |
| 33. | 18.3% | Henry, IL / 50,031 |
| 34. | 18.2% | Cumberland, IL / 10,950 |
| 35. | 18.0% | Dewitt, IL / 16,461 |
| 36. | 17.9% | Marshall, IL / 12,319 |
| 37. | 17.9% | Christian, IL / 34,415 |
| 38. | 17.8% | Jefferson, IL / 38,716 |
| 39. | 17.7% | Tazewell, IL / 135,872 |
| 39. | 17.7% | Clay, IL / 13,675 |
| 41. | 17.6% | Boone, IL / 54,005 |
| 42. | 17.5% | Wabash, IL / 11,730 |
| 43. | 17.4% | Mcdonough, IL / 32,388 |
| 44. | 17.4% | Kendall, IL / 118,194 |
| 45. | 17.4% | Johnson, IL / 12,650 |
| 46. | 17.3% | Livingston, IL / 38,476 |
| 47. | 17.3% | Mclean, IL / 172,390 |
| 48. | 17.1% | Crawford, IL / 19,626 |
| 49. | 16.9% | Sangamon, IL / 198,808 |
| 50. | 16.8% | Macon, IL / 109,833 |
| 51. | 16.7% | Scott, IL / 5,260 |
| 52. | 16.6% | Mason, IL / 14,309 |
| 53. | 16.6% | Carroll, IL / 15,027 |
| 54. | 16.6% | Bureau, IL / 34,361 |
| 55. | 16.6% | Knox, IL / 52,447 |
| 56. | 16.5% | Ogle, IL / 52,782 |
| 57. | 16.5% | Fulton, IL / 36,616 |
| 58. | 16.4% | Madison, IL / 267,937 |
| 59. | 16.4% | Dupage, IL / 926,485 |
| 60. | 16.2% | Warren, IL / 17,784 |
| 61. | 16.1% | Edwards, IL / 6,687 |
| 62. | 16.1% | Rock Island, IL / 146,964 |
| 63. | 16.0% | Whiteside, IL / 57,680 |
| 64. | 16.0% | Woodford, IL / 38,965 |
| 65. | 15.8% | Iroquois, IL / 29,272 |
| 66. | 15.7% | Peoria, IL / 187,197 |
| 67. | 15.5% | Bond, IL / 17,571 |
| 68. | 15.4% | Jackson, IL / 60,125 |
| 69. | 15.4% | Douglas, IL / 19,867 |
| 70. | 15.2% | Brown, IL / 6,878 |
| 71. | 15.1% | Union, IL / 17,620 |
| 72. | 15.0% | Calhoun, IL / 5,033 |
| 73. | 15.0% | Kankakee, IL / 112,682 |
| 73. | 15.0% | Hancock, IL / 18,808 |
| 75. | 14.8% | Morgan, IL / 35,272 |
| 76. | 14.8% | Winnebago, IL / 292,026 |
| 77. | 14.7% | Effingham, IL / 34,280 |
| 78. | 14.4% | Fayette, IL / 22,041 |
| 79. | 14.4% | Pike, IL / 16,244 |
| 80. | 14.2% | Richland, IL / 16,144 |
| 81. | 14.1% | Stephenson, IL / 47,053 |
| 82. | 14.1% | Schuyler, IL / 7,454 |
| 83. | 14.1% | Perry, IL / 22,034 |
| 84. | 14.0% | Shelby, IL / 22,216 |
| 85. | 14.0% | Lawrence, IL / 16,726 |
| 86. | 14.0% | Moultrie, IL / 14,896 |
| 87. | 13.9% | Adams, IL / 67,113 |
| 88. | 13.8% | Pulaski, IL / 5,967 |
| 89. | 13.5% | Wayne, IL / 16,627 |
| 89. | 13.5% | Cass, IL / 13,440 |
| 91. | 13.1% | Randolph, IL / 33,091 |
| 92. | 12.8% | Kane, IL / 521,874 |
| 93. | 12.8% | Lake, IL / 703,170 |
| 94. | 12.7% | Montgomery, IL / 29,740 |
| 95. | 11.8% | Saint Clair, IL / 268,415 |
| 96. | 11.3% | Champaign, IL / 204,214 |
| 97. | 11.2% | Alexander, IL / 7,821 |
| 98. | 11.0% | Jasper, IL / 9,658 |
| 99. | 11.0% | Washington, IL / 14,527 |
| 100. | 10.3% | Cook, IL / 5,227,827 |
| 101. | 10.3% | Vermilion, IL / 80,773 |
| 102. | 9.8% | Clinton, IL / 37,952 |
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.