Illinois County is the most populous of the state’s 23 counties.
It covers parts of Chicago, Evanston, Evanawa, St. Charles, and the southern suburbs of Chicago.
In some places it covers more than 1,000 square kilometres (450 square miles).
The map was created by a US-based firm called the Illinois State Geographic Information System (ISGS), and has been widely downloaded.
The county’s geographic area is 2,531 square kilometres, or 3.4 square miles.
Illinois County map: Illinois County Map Source: Wikimedia Commons/Illinois State Geographic information system map Illinis county map: Illinois County map (Illinois Department of Transportation) The map covers all of Illinois except the city of Chicago and a few small pockets of suburbs.
It shows the largest, most densely populated counties in the state, including Cook, Lake, and DuPage counties.
In the south of the county, Cook County covers much of the southern and eastern half of the city and a large area of western Illinois, including parts of Lawrence, Rockford, and Champaign counties.
The county has a population of approximately 3.2 million people, making it the second most populous in the country behind California.
It has a large and rapidly expanding metropolitan area, with an estimated 2.4 million people living in the greater Chicago area.
The Cook County map, created by the Illinois Department of Transit, has been downloaded more than 10,000 times, according to the Chicago Tribune.
It is the largest US county map, with its scale, zoom, and border information.
Illis county map : Illinois County Google map source: Illinois State Digital Library