Illinois
ILComprehensive geographic, population, and economic data for Illinois.
Total ZIP Codes
1,568
Total Population
12,694,745
Avg Household Income
$80,056
Avg Home Value
$198,645
Largest Cities in Illinois
| City | County | Population |
|---|---|---|
| Chicago | Cook | 8,609,570 |
| Rockford | Winnebago | 271,411 |
| Round Lake Beach | Lake | 264,501 |
| Peoria | Peoria | 255,063 |
| Aurora | Kane | 179,898 |
| Springfield | Sangamon | 157,178 |
| Champaign | Champaign | 153,687 |
| Naperville | DuPage | 150,692 |
| Joliet | Will | 150,445 |
| Bloomington | McLean | 135,296 |
| Elgin | Kane | 114,934 |
| Waukegan | Lake | 89,076 |
| Cicero | Cook | 82,797 |
| Alton | Madison | 80,162 |
| Decatur | Macon | 80,124 |
Most Populous ZIP Codes
| ZIP Code | City | Population |
|---|---|---|
| 60629 | Chicago | 108,324 |
| 60618 | Chicago | 91,901 |
| 60632 | Chicago | 89,107 |
| 60647 | Chicago | 84,749 |
| 60639 | Chicago | 84,240 |
| 60804 | Cicero | 82,797 |
| 60623 | Chicago | 81,277 |
| 60608 | Chicago | 80,737 |
| 60625 | Chicago | 76,760 |
| 60617 | Chicago | 74,790 |
| 60634 | Chicago | 73,885 |
| 60085 | Waukegan | 72,341 |
| 60657 | Chicago | 71,904 |
| 60614 | Chicago | 70,693 |
| 60641 | Chicago | 68,894 |