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.
McHenry County
McHenry County, population 305,888
Madison County
Madison County, population 262,635
McLean County
McLean County, population 171,256
| 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 |