Data Definitions, Sources and Methodology
for County Economic Impact Reports

Adams County

Boone County

Cass County

Champaign County

Clark County

Coles County

Cook County

Cumberland County

DeKalb County

DuPage County

Edgar County

Effingham County

Fayette County

Fulton County

Grundy County

Jackson County

Jefferson County

Jersey County

Kane County

Kankakee County

Kendall County

Lake County

LaSalle County

Livingston County

Logan County

Macon County

Macoupin County

Madison County

Marion County

McDonough County

McHenry County

McLean County

Monroe County

Montgomery County

Moultrie County

Ogle County

Peoria County

Randolph County

Rock Island County

Saline County

Sangamon County

St. Clair County

Stephenson County

Tazewell County

Vermilion County

Whiteside County

Will County

Williamson County

Winnebago County