Information on the State : ILLINOIS - IL
Flag Name ShortCode Capital Largest City Statehood Date Total Population Area (Miles2/KM2) Land Area (Miles/KM) Water Area (Miles/KM) House Seats Total Counties Total Cities Total Zipcodes
Illinois IL Springfield Chicago December 3, 1818 12882135 57914 (149997) 55519 (143794) 2395 (6203) 18 105 1315 1645
There are total 105 Counties in Illinois . Below is the complete list of all the current counties.