City guide · ZIP / utility based

Los Angeles tap water quality

Los Angeles ZIPs often map to LADWP or neighboring city systems. Overlaps are common near boundaries — always check your ZIP.

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 94 ZIP codes in our index are labeled Los Angeles (Los Angeles County). Pick an example below or enter your own ZIP.

Example ZIPs in Los Angeles

90002 Los Angeles 90022 Los Angeles 90001 Los Angeles 90058 Los Angeles 90059 Los Angeles 90056 Los Angeles 90040 Los Angeles 90003 Los Angeles 90004 Los Angeles 90005 Los Angeles 90006 Los Angeles 90007 Los Angeles

Utilities often matched near Los Angeles

Names come from public CA water-system records for ZIPs labeled Los Angeles. Your block may differ — always open the ZIP report.

  • Los Angeles-City, Dept. of Water & Power
  • California Water Service Co. - Ela
  • Gswc - Florence/Graham
  • Commerce-City, Water Dept.
  • Cal/Am Water Company - Baldwin Hills
  • Vernon-City, Water Dept.

Want the full drinking water report?

Open a ZIP report for curated detections vs EPA limits and CA health guidelines. Open report for 90002 →

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