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.
| County Name | Population | Cities |
|---|---|---|
| Macon County | 103,015 | Macon County cities |
| Macoupin County | 44,567 | Macoupin County cities |
| Madison County | 262,635 | Madison County cities |
| Marion County | 37,045 | Marion County cities |
| Marshall County | 11,309 | Marshall County cities |
| Mason County | 13,173 | Mason County cities |
| Massac County | 13,636 | Massac County cities |
| McDonough County | 29,295 | McDonough County cities |
| McHenry County | 305,888 | McHenry County cities |
| McLean County | 171,256 | McLean County cities |
| Menard County | 12,068 | Menard County cities |
| Mercer County | 15,225 | Mercer County cities |
| Monroe County | 34,739 | Monroe County cities |
| Montgomery County | 28,045 | Montgomery County cities |
| Morgan County | 33,400 | Morgan County cities |
| Moultrie County | 14,347 | Moultrie County cities |


