District 1
Cook, DuPage, Kane, Lake, McHenry, Will

District 2
Boone, Carroll, Henry, JoDaviess, Lee, Ogle, Rock Island, Stephenson, Whiteside, Winnebago

District 3
Bureau, DeKalb, Ford, Grundy, Iroquois, Kankakee, Kendall, LaSalle, Livingston

District 4
Fulton, Henderson, Knox, McDonough, Marshall, Mercer, Peoria, Putnam, Stark, Tazewell, Warren, Woodford

District 5
Champaign, DeWitt, Douglas, Edgar, McLean, Piatt, Vermilion

District 6
Adams, Brown, Cass, Christian, Hancock, Logan, Macoupin, Mason, Menard, Montgomery, Morgan, Pike, Sangamon, Schuyler, Scott

District 7
Clark, Clay, Coles, Crawford, Cumberland, Edwards, Effingham, Fayette, Jasper, Lawrence, Macon, Moultrie, Richland, Shelby, Wabash, Wayne

District 8
Bond, Calhoun, Clinton, Greene, Jersey, Madison, Marion, Monroe, Randolph, St. Clair, Washington

District 9
Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson, Jefferson, Johnson, Massac, Perry, Pope, Pulaski, Saline, Union, White, Williamson

Central Office
Springfield, IL