Local Data Search
A total of 102 results found. Show Results on Map.
| Rank | Irish as First Ancestry Population Percentage ▼ | County / Population |
| 1. | 38.3% | Hardin, IL / 4,470 |
| 2. | 32.1% | Gallatin, IL / 5,921 |
| 3. | 25.9% | Mercer, IL / 16,440 |
| 4. | 25.8% | Hamilton, IL / 8,186 |
| 5. | 25.7% | Henderson, IL / 7,550 |
| 6. | 24.7% | Saline, IL / 25,906 |
| 7. | 24.3% | Pope, IL / 4,071 |
| 8. | 23.8% | Grundy, IL / 46,513 |
| 9. | 23.6% | Massac, IL / 15,081 |
| 10. | 23.2% | Coles, IL / 52,144 |
| 11. | 22.9% | Franklin, IL / 39,301 |
| 12. | 22.3% | Lee, IL / 34,994 |
| 13. | 21.9% | Scott, IL / 5,238 |
| 14. | 21.8% | La Salle, IL / 112,293 |
| 15. | 20.8% | Williamson, IL / 64,212 |
| 16. | 20.6% | White, IL / 14,772 |
| 17. | 20.3% | Marshall, IL / 12,831 |
| 18. | 20.3% | Jo Daviess, IL / 22,160 |
| 19. | 20.0% | Lawrence, IL / 16,550 |
| 20. | 19.9% | Marion, IL / 39,488 |
| 21. | 19.8% | Dekalb, IL / 104,279 |
| 22. | 19.7% | Mchenry, IL / 312,946 |
| 23. | 19.7% | Will, IL / 664,361 |
| 24. | 19.7% | Edgar, IL / 18,750 |
| 25. | 19.6% | Warren, IL / 17,551 |
| 26. | 19.6% | Livingston, IL / 37,965 |
| 27. | 19.5% | Johnson, IL / 13,653 |
| 28. | 19.5% | Christian, IL / 34,543 |
| 29. | 19.2% | Macoupin, IL / 48,148 |
| 30. | 19.2% | Clay, IL / 13,729 |
| 30. | 19.2% | Whiteside, IL / 59,059 |
| 32. | 19.0% | Morgan, IL / 35,300 |
| 33. | 19.0% | Jefferson, IL / 40,063 |
| 34. | 18.6% | Sangamon, IL / 194,049 |
| 35. | 18.3% | Union, IL / 18,078 |
| 36. | 18.3% | Mclean, IL / 163,686 |
| 37. | 18.3% | Madison, IL / 266,886 |
| 38. | 18.1% | Greene, IL / 13,765 |
| 39. | 18.0% | Kendall, IL / 94,070 |
| 40. | 17.9% | Clark, IL / 16,778 |
| 41. | 17.9% | Jersey, IL / 22,412 |
| 42. | 17.7% | Crawford, IL / 19,545 |
| 43. | 17.7% | Carroll, IL / 15,878 |
| 44. | 17.6% | Stark, IL / 6,076 |
| 45. | 17.6% | Dupage, IL / 925,530 |
| 46. | 17.5% | Menard, IL / 12,460 |
| 47. | 17.4% | Ford, IL / 13,968 |
| 48. | 17.4% | Pike, IL / 16,484 |
| 49. | 17.3% | Knox, IL / 52,077 |
| 50. | 17.3% | Rock Island, IL / 146,670 |
| 51. | 17.3% | Peoria, IL / 183,474 |
| 52. | 17.2% | Ogle, IL / 54,841 |
| 53. | 17.1% | Jackson, IL / 58,526 |
| 54. | 16.9% | Wayne, IL / 16,505 |
| 55. | 16.9% | Monroe, IL / 32,358 |
| 56. | 16.7% | Montgomery, IL / 29,782 |
| 57. | 16.6% | Schuyler, IL / 6,917 |
| 58. | 16.5% | Macon, IL / 108,772 |
| 59. | 16.5% | Moultrie, IL / 14,344 |
| 60. | 16.4% | Logan, IL / 29,942 |
| 61. | 16.3% | Kankakee, IL / 111,244 |
| 62. | 16.2% | Adams, IL / 66,892 |
| 63. | 16.2% | Piatt, IL / 16,499 |
| 64. | 15.9% | Henry, IL / 49,523 |
| 65. | 15.9% | Fulton, IL / 36,860 |
| 66. | 15.7% | Bureau, IL / 34,795 |
| 67. | 15.6% | Tazewell, IL / 130,789 |
| 68. | 15.5% | Mcdonough, IL / 32,907 |
| 69. | 15.5% | Iroquois, IL / 30,017 |
| 70. | 15.4% | Dewitt, IL / 16,290 |
| 71. | 15.2% | Woodford, IL / 37,950 |
| 72. | 15.2% | Perry, IL / 22,542 |
| 73. | 15.0% | Champaign, IL / 192,135 |
| 74. | 15.0% | Putnam, IL / 5,977 |
| 75. | 14.8% | Bond, IL / 18,173 |
| 76. | 14.8% | Mason, IL / 15,075 |
| 77. | 14.7% | Cumberland, IL / 10,802 |
| 78. | 14.7% | Winnebago, IL / 295,803 |
| 79. | 14.6% | Kane, IL / 494,371 |
| 80. | 14.5% | Hancock, IL / 18,720 |
| 81. | 14.3% | Shelby, IL / 21,854 |
| 82. | 14.3% | Lake, IL / 702,558 |
| 83. | 14.2% | Calhoun, IL / 5,076 |
| 84. | 14.1% | Wabash, IL / 12,199 |
| 85. | 14.1% | Stephenson, IL / 46,821 |
| 86. | 14.1% | Douglas, IL / 19,436 |
| 87. | 14.0% | Washington, IL / 14,725 |
| 88. | 13.6% | Richland, IL / 15,621 |
| 89. | 13.5% | Randolph, IL / 32,851 |
| 90. | 13.4% | Boone, IL / 52,400 |
| 91. | 13.3% | Jasper, IL / 9,645 |
| 92. | 13.1% | Fayette, IL / 21,015 |
| 93. | 13.0% | Effingham, IL / 34,329 |
| 94. | 12.9% | Saint Clair, IL / 261,268 |
| 95. | 12.9% | Brown, IL / 6,593 |
| 96. | 12.1% | Vermilion, IL / 80,926 |
| 97. | 11.1% | Clinton, IL / 36,235 |
| 98. | 11.1% | Cass, IL / 13,575 |
| 99. | 10.9% | Cook, IL / 5,257,001 |
| 99. | 10.9% | Edwards, IL / 6,526 |
| 101. | 9.1% | Alexander, IL / 8,254 |
| 102. | 9.1% | Pulaski, IL / 6,430 |
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.