City guide · ZIP / utility based
Pasadena tap water quality
Pasadena and nearby foothill ZIPs may map to city or regional systems. Reports are educational ZIP→utility matches, not a citywide score.
Honest framing: This is not a citywide water score. We match your ZIP to a public water system using CA service-area data where available. Contaminant lists are curated detections — non-detects are omitted. Educational only — not medical advice, not a faucet lab test, and not affiliated with EWG or any utility.
About 25 ZIP codes in our index are labeled Pasadena (Los Angeles County). Pick an example below or enter your own ZIP.
Example ZIPs in Pasadena
91101 Pasadena
91102 Pasadena
91103 Pasadena
91104 Pasadena
91105 Pasadena
91106 Pasadena
91107 Pasadena
91109 Pasadena
91110 Pasadena
91114 Pasadena
91115 Pasadena
91116 Pasadena
Utilities often matched near Pasadena
Names come from public CA water-system records for ZIPs labeled Pasadena. Your block may differ — always open the ZIP report.
- Pasadena Water and Power
- Sunny Slope Water Co.
- Cal-Am Water Company - East Pasadena
- Kinneloa Irrigation Dist.
Want the full drinking water report?
Open a ZIP report for curated detections vs EPA limits and CA health guidelines. Open report for 91101 →
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