| 1 |
| Government Name | Type |
|
Chicago City |
City |
|
Aurora City |
City |
|
Rockford City |
City |
|
Joliet City |
City |
|
Naperville City |
City |
|
Springfield City |
City |
|
Peoria City |
City |
|
Elgin City |
City |
|
Cook County |
County |
|
DuPage County |
County |
|
Lake County |
County |
|
Will County |
County |
|
Kane County |
County |
|
Winnebago County |
County |
|
McHenry County |
County |
|
Madison County |
County |
|
St. Clair County |
County |
|
Sangamon County |
County |
|
Peoria County |
County |
|
Champaign County |
County |
|
McLean County |
County |
|
Rock Island County |
County |
|
Tazewell County |
County |
|
Macon County |
County |
|
LaSalle County |
County |
|
Kankakee County |
County |
|
State of Illinois |
State |
|