City guide · ZIP / utility based

Modesto tap water quality

Modesto ZIPs map to city or Stanislaus County systems. TapCheck does not invent citywide water scores.

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 10 ZIP codes in our index are labeled Modesto (Stanislaus County). Pick an example below or enter your own ZIP.

Example ZIPs in Modesto

95350 Modesto 95357 Modesto 95351 Modesto 95352 Modesto 95353 Modesto 95354 Modesto 95355 Modesto 95356 Modesto 95358 Modesto 95397 Modesto

Utilities often matched near Modesto

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

  • Modesto, City of
  • Riverview Mobile Home Estates
  • City of Modesto - Salida
  • City of Waterford
  • City of Modesto - Del Rio
  • City of Modesto - South Turlock

Want the full drinking water report?

Open a ZIP report for curated detections vs EPA limits and CA health guidelines. Open report for 95350 →

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