ZIP code guides in Illinois
8 population-selected ZIP area guides are available in this batch. They are the highest-population unopened 2020 Census ZIP Code Tabulation Areas that pass the site’s page coverage and indexability checks. Population figures use the 2020–2024 American Community Survey. This is a selected group, not a complete list of postal ZIP codes in the state.
Available ZIP guides
| ZIP code | Place name | 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 |
Population is a ZCTA estimate, not a count of USPS delivery addresses. U.S. Census Bureau, ACS 2020–2024.