Definitions of Economic Development Regions
- Region 1 (Central (12 counties)) - Cass, Christian, Greene, Logan, Macon, Macoupin, Menard, Montgomery, Morgan, Sangamon, Scott, Shelby Counties.
- Region 2 (East Central (6 counties)) - Champaign, Douglas, Ford, Iroquois, Piatt, Vermilion Counties.
- Region 3 (North Central (10 counties)) - De Witt, Fulton, Livingston, Mc Lean, Marshall, Mason, Peoria, Stark, Tazewell, Woodford Counties.
- Region 4 (Northeast (10 counties)) - Cook, De Kalb, Du Page, Grundy, Kane, Kankakee, Kendall, Lake, Mc Henry, Will Counties.
- Region 5 (Northern Stateline (4 counties)) - Boone, Ogle, Stephenson, Winnebago Counties.
- Region 6 (Northwest (10 counties)) - Bureau, Carroll, Henry, Jo Daviess, La Salle, Lee, Mercer, Putnam, Rock Island, Whiteside Counties.
- Region 7 (Southeastern (13 counties)) - Clark, Clay, Coles, Crawford, Cumberland, Edgar, Effingham, Fayette, Jasper, Lawrence, Marion, Moultrie, Richland Counties.
- Region 8 (Southern (19 counties)) - Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin, Jackson, Jefferson, Johnson, Massac, Perry, Pope, Pulaski, Saline, Union, Wabash, Wayne, White, Williamson Counties.
- Region 9 (Southwestern (9 counties)) - Bond, Calhoun, Clinton, Jersey, Madison, Monroe, Randolph, St. Clair, Washington Counties.
- Region 10 (West Central (9 counties)) - Adams, Brown, Hancock, Henderson, Knox, Mc Donough, Pike, Schuyler, Warren Counties.