These regions will be effective July 1, 2015.
| REGION 1 | REGION 2 | REGION 3 | REGION 4 |
| Cook | Boone | Bureau | Adams |
| Dekalb | Ogle | Carroll | Brown |
| DuPage | Stephenson | Henry | Hancock |
| Grundy | Winnebago | Jo Daviess | Henderson |
| Kane | | LaSalle | Knox |
| Kankakee | | Lee | McDonough |
| Kendall | | Mercer | Pike |
| Lake | | Putnam | Schuyler |
| McHenry | | Rock Island | Warren |
| Will | | Whiteside | |
| REGION 5 | REGION 6 | REGION 7 | REGION 8 |
| DeWitt | Champaign | Christian | Bond |
| Fulton | Douglas | Cass | Calhoun |
| Livingston | Ford | Greene | Clinton |
| Marshall | Iroquois | Logan | Jersey |
| Mason | Piatt | Macon | Madison |
| McLean | Vermilion | Macoupin | Monroe |
| Peoria | | Menard | Randolph |
| Stark | | Montgomery | St. Clair |
| Tazewell | | Morgan | Washington |
| Woodford | | Sangamon | |
| | Scott | |
| | Shelby | |
| REGION 9 | REGION 10 |
| Clark | Alexander | Perry |
| Clay | Edwards | Pope |
| Coles | Franklin | Pulaski |
| Crawford | Gallatin | Saline |
| Cumberland | Hamilton | Union |
| Edgar | Hardin | Wabash |
| Effingham | Jackson | Wayne |
| Fayette | Jefferson | White |
| Jasper | Johnson | Williamson |
| Lawrence | Massac | |
| Marion | | |
| Moultrie | | |
| Richland | | |
These regions are effective through June 30, 2015.
| REGION 1 | REGION 2 | REGION 3 | REGION 4 |
| Cook | Boone | Bureau | Fulton |
| DuPage | Carroll | Henderson | Mason |
| Grundy | DeKalb | Henry | Peoria |
| Kane | Jo Daviess | Knox | Tazewell |
| Kendall | Lee | Mercer | Woodford |
| Lake | Ogle | Rock Island | |
| McHenry | Stephenson | Stark | |
| Will | Whiteside | Warren | |
| Winnebago | | |
| REGION 5 | REGION 6 | REGION 7 | REGION 8 |
| Kankakee | Champaign | Christian | Adams |
| LaSalle | Douglas | DeWitt | Brown |
| Livingston | Ford | Logan | Calhoun |
| Marshall | Iroquois | Macon | Cass |
| McLean | Vermilion | Macoupin | Greene |
| Putnam | | Menard | Hancock |
| | Montgomery | Jersey |
| | Piatt | McDonough |
| | Sangamon | Morgan |
| | | Pike |
| | | Schuyler |
| | | Scott |
| REGION 9 | REGION 10 | REGION 11 |
| Bond | Clark | Marion | Alexander | Perry |
| Clinton | Clay | Moultrie | Edwards | Pope |
| Madison | Coles | Richland | Franklin | Pulaski |
| Monroe | Crawford | Shelby | Gallatin | Randolph |
| St. Clair | Cumberland | | Hamilton | Saline |
| Washington | Edgar | | Hardin | Union |
| Effingham | | Jackson | Wabash |
| Fayette | | Jefferson | Wayne |
| Jasper | | Johnson | White |
| Lawrence | | Massac | Williamson |
(Source: Amended at 39 Ill. Reg. 5601, effective April 6, 2015)