SDA 1 – Jo Daviess, Stephenson, Winnebago and Boone Counties
SDA 2 – Carroll, Ogle, Whiteside, Lee, McHenry, and DeKalb Counties
SDA 3 – Lake County
SDA 4 – Kane and DuPage Counties
SDA 5 – Kendall, Will, Grundy, and Kankakee Counties
SDA 6 – Cook County
SDA 7 – Rock Island, Henry, Mercer, Henderson, Warren, Knox, and McDonough Counties
SDA 8 – Bureau, Putnam, LaSalle, Stark, Peoria, Woodford, Fulton, Marshall, and Tazewell Counties
SDA 9 – Livingston, McLean, Ford, and DeWitt Counties
SDA 10 – Iroquois, Champaign, Vermilion, Macon, Piatt, and Douglas Counties
SDA 11 – Moultrie, Coles, Edgar, Shelby, Cumberland, and Clark Counties
SDA 12 – Hancock, Adams, Schuyler, Brown, Cass, Pike, Calhoun, Greene, and Jersey Counties
SDA 13 – Mason, Menard, Logan, Scott, Morgan, Sangamon, Christian, Macoupin, and Montgomery Counties
SDA 14 – Madison, Bond, St. Clair, Clinton, Washington, Monroe, and Randolph Counties
SDA 15 – Fayette, Effingham, Jasper, Crawford, Clay, Richland, Lawrence, Marion, Jefferson, Wayne, Edwards, and Wabash Counties
SDA 16 – Perry, Franklin, Hamilton, White, Jackson, Williamson, Saline, Gallatin, Union, Johnson, Pope, Hardin, Alexander, Pulaski, and Massac Counties
Illinois County Map
SDA 1 SDA 2 SDA 3 SDA 4 SDA 5 SDA 6 SDA 7 SDA 8 SDA 9 SDA 10 SDA 11 SDA 12 SDA 13 SDA 14 SDA 15 SDA 16