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.
Jackson County
Jackson County, population 56,675
Jefferson County
Jefferson County, population 37,235
Jersey County
Jersey County, population 21,616
| County Name | Population | Cities |
|---|---|---|
| Jackson County | 56,675 | Jackson County cities |
| Jasper County | 9,465 | Jasper County cities |
| Jefferson County | 37,235 | Jefferson County cities |
| Jersey County | 21,616 | Jersey County cities |
| Jo Daviess County | 21,239 | Jo Daviess County cities |
| Johnson County | 12,358 | Johnson County cities |