| District of Illinois | |
| Kaskaskia, 1819-1820 | |
| Vandalia, 1820-1839 | |
| Springfield, 1839-1855 | |
| Chicago, 1848-1855 | |
| Central District of Illinois | |
| Danville, 1979- | |
| Peoria, 1979- | |
| Quincy, 1979- | |
| Rock Island, 1979- | |
| Springfield, 1979- | |
| Champaign/Urbana, 1984- | |
| Eastern District of Illinois | |
| Cairo, 1905-1979 | |
| Danville, 1905-1979 | |
| East Saint Louis, 1905-1979 | |
| Benton, 1937-1979 | |
| Northern District of Illinois | |
| Chicago, 1855- | |
| Peoria, 1887-1905 | |
| Freeport, 1905- | |
| Rockford, 1970- | |
| Wheaton, 1999- | |
| Southern District of Illinois | |
| Cairo, 1868-1905, 1979- | |
| Quincy, 1888-1979 | |
| Danville, 1890-1905 | |
| East Saint Louis, 1904-1905, 1979- | |
| Peoria, 1905-1979 | |
| Rock Island, 1950-1979 | |
| Springfield, 1855-1979 | |
| Alton, 1961- | |
| Benton, 1979- | |