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California · 47,494 people served · 6 water systems
ZIP code 97035 is in California and is a small city from a drinking-water-service perspective, with 47,494 people served by 6 EPA-registered public water systems. It corresponds to LAKE OSWEGO.
Within ZIP code 97035, the EPA Safe Drinking Water Information System (SDWIS) records no health-based Maximum Contaminant Level (MCL) exceedances during the past five years across the 6 water systems serving this postal area.
Last updated: 2026-05-18 · Source: EPA SDWIS
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WESTWIND MOBILE HOME PARK
PWSID: CA1700584
104 served
LAKE GROVE WATER DISTRICT
PWSID: OR4100460
3,100 served
LAKE OSWEGO MUNICIPAL WATER
PWSID: OR4100457
40,000 served
RIVERGROVE WATER DISTRICT
PWSID: OR4100461
4,000 served
CARVER MOBILE RANCH
PWSID: OR4100189
110 served
EXCALIBUR VILLAGE
PWSID: OR4100599
180 served
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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