Validated releaseUpdated 2026-10-15See source status
State collection
Illinois home environmental profiles
Compare 1 indexed city in Illinois using the same public-data definitions and release date.
About the water column
The drinking-water percentage is state-level EPA ECHO context, so cities in the same state share that value. It is not a substitute for identifying the community water system that serves a specific address.
| State rank | City | Score | AQI now | Water systems without current health violation | Moisture pressure | Housing pre-1980 |
|---|---|---|---|---|---|---|
| #1 | Chicago, IL | 55.1 | 51 | 95.9% | 57.1 | 75.2% |