Validated releaseUpdated 2026-10-08See source status
State collection
California home environmental profiles
Compare 4 indexed cities in California 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 | San Diego, CA | 68.2 | 61 | 81.8% | 23.5 | 52.4% |
| #2 | Sacramento, CA | 65.2 | 58 | 81.8% | 32.3 | 53.6% |
| #3 | San Francisco, CA | 63.7 | 14 | 81.8% | 10.5 | 76.5% |
| #4 | Los Angeles, CA | 61.2 | 58 | 81.8% | 26.7 | 69.9% |