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.
Grundy County
Grundy County, population 50,993
Greene County
Greene County, population 12,702
Gallatin County
Gallatin County, population 4,793
| County Name | Population | Cities |
|---|---|---|
| Gallatin County | 4,793 | Gallatin County cities |
| Greene County | 12,702 | Greene County cities |
| Grundy County | 50,993 | Grundy County cities |