The graph below ranks each Illinois County by total of Black residents according to the 2012 census estimates.
Illinois total of Black population by county
| County | Black Population |
| Cook |  1,296,542 |
| St. Clair | 82,226 |
| Will | 79,064 |
| Lake | 51,189 |
| DuPage | 46,371 |
| Winnebago | 36,772 |
| Peoria | 33,519 |
| Kane | 31,278 |
| Champaign | 25,836 |
| Sangamon | 23,912 |
| Madison | 21,432 |
| Macon | 18,366 |
| Kankakee | 17,491 |
| Rock Island | 13,719 |
| McLean | 13,094 |
| Vermilion | 10,735 |
| Jackson | 8,776 |
| DeKalb | 7,219 |
| Kendall | 7,205 |
| Stephenson | 4,413 |
| Knox | 4,024 |
| McHenry | 4,000 |
| Jefferson | 3,404 |
| Randolph | 3,296 |
| Alexander | 2,791 |
| Williamson | 2,735 |
| La Salle | 2,485 |
| Adams | 2,421 |
| Logan | 2,372 |
| Morgan | 2,189 |
| Coles | 2,146 |
| Livingston | 2,003 |
| Pulaski | 1,967 |
| Perry | 1,921 |
| Lee | 1,827 |
| McDonough | 1,759 |
| Lawrence | 1,659 |
| Tazewell | 1,633 |
| Marion | 1,594 |
| Clinton | 1,447 |
| Fulton | 1,357 |
| Boone | 1,346 |
| Brown | 1,306 |
| Bond | 1,145 |
| Johnson | 1,048 |
| Saline | 1,025 |
| Fayette | 1,013 |
| Montgomery | 980 |
| Crawford | 941 |
| Whiteside | 925 |
| Henry | 903 |
| Massac | 880 |
| Grundy | 703 |
| Ogle | 529 |
| Christian | 519 |
| Cass | 497 |
| Macoupin | 472 |
| Warren | 374 |
| Pike | 293 |
| Iroquois | 293 |
| Pope | 290 |
| Bureau | 275 |
| Schuyler | 247 |
| Woodford | 234 |
| Franklin | 197 |
| Union | 194 |
| Jersey | 136 |
| Greene | 136 |
| Carroll | 135 |
| Jo Daviess | 135 |
| Menard | 127 |
| Washington | 117 |
| De Witt | 115 |
| Ford | 112 |
| Effingham | 103 |
| Monroe | 100 |
| Douglas | 99 |
| Richland | 97 |
| Wabash | 94 |
| Edgar | 91 |
| Piatt | 83 |
| Clark | 81 |
| White | 73 |
| Mason | 72 |
| Clay | 69 |
| Shelby | 67 |
| Wayne | 66 |
| Mercer | 65 |
| Moultrie | 60 |
| Hancock | 57 |
| Marshall | 49 |
| Cumberland | 44 |
| Hamilton | 42 |
| Putnam | 35 |
| Edwards | 34 |
| Stark | 30 |
| Gallatin | 22 |
| Hardin | 21 |
| Henderson | 21 |
| Scott | 21 |
| Jasper | 19 |
| Calhoun | 10 |