Illinois Counties

Illinois, Located in the Midwest, it is home to Chicago, the third-largest city in the US. The state is a major transportation hub and an agricultural leader, known for its vast corn and soybean fields. It also plays a significant role in manufacturing and finance.. There are 102 county in Illinois. You can find the list of these counties and detailed information from the links below.

Boone County
Boone County

Boone County, population 52,777

Bureau County
Bureau County

Bureau County, population 32,303

Bond County
Bond County

Bond County, population 16,262

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Counties on Map (4)