Municipalities with the largest population decline, July 2019-July 2020
| Municipality | 2019-2020 change |
|---|---|
| Chicago | −13,854 |
| Aurora | −1,299 |
| Peoria | −1,079 |
| Cicero | −965 |
| Schaumburg | −768 |
| Rockford | −738 |
| Decatur | −727 |
| Evanston | −726 |
| Arlington Heights | −689 |
| Waukegan | −678 |
