| Population | County | Answer | % Correct |
|---|---|---|---|
| 3,620,962 | Cook | Chicago | 100%
|
| 81,628 | Sangamon | Springfield | 100%
|
| 111,856 | Peoria | Peoria | 97%
|
| 92,927 | Winnebago | Rockford | 93%
|
| 51,601 | Will | Joliet | 89%
|
| 50,576 | Kane | Aurora | 88%
|
| 73,641 | Cook | Evanston | 86%
|
| 82,295 | St. Clair | East St. Louis | 85%
|
| 39,563 | Champaign | Champaign | 83%
|
| 67,544 | Cook | Cicero | 83%
|
| 38,946 | Lake | Waukegan | 78%
|
| 66,269 | Macon | Decatur | 76%
|
| 44,223 | Kane | Elgin | 74%
|
| 37,397 | Rock Island | Moline | 72%
|
| 48,710 | Rock Island | Rock Island | 69%
|
| 34,163 | McLean | Bloomington | 67%
|
| 41,450 | Adams | Quincy | 67%
|
| 63,529 | Cook | Oak Park | 65%
|
| 37,864 | Vermillion | Danville | 40%
|
| 51,280 | Cook | Berwyn | 38%
|