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ZIP Code 90620 Water Quality
California · 81,998 people served · 1 water systems
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ExcellentZIP code 90620 is in California and is a mid-sized community from a drinking-water-service perspective, with 81,998 people served by 1 EPA-registered public water systems. It corresponds to BUENA PARK.
Within ZIP code 90620, the EPA Safe Drinking Water Information System (SDWIS) records no health-based Maximum Contaminant Level (MCL) exceedances during the past five years across the 1 water system serving this postal area.
Last updated: 2026-05-18 · Source: EPA SDWIS
ZIP Code Location
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Cities in ZIP 90620
Water Systems Serving 90620
About ZIP-code water data
Postal-code level water quality data is built up from the underlying water systems — multiple ZIPs may share a single utility, and a single ZIP can span multiple utilities. For property-level information, contact the specific utility serving your address. EPA data on this page was last refreshed on 2026-05-18.
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