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ZIP Code 98266 Water Quality
Washington · 4,647 people served · 11 water systems
C
FairZIP code 98266 is in Washington and is a small town from a drinking-water-service perspective, with 4,647 people served by 11 EPA-registered public water systems. It overlaps with 2 communities including Maple Falls, MAPLE FALLS.
Within ZIP code 98266, the EPA Safe Drinking Water Information System (SDWIS) records 4 health-based violations during the past five years across 11 water systems serving this postal area. The grade of C reflects the aggregate compliance pattern, not the current daily water quality.
Last updated: 2026-05-18 · Source: EPA SDWIS
ZIP Code Location
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Cities in ZIP 98266
Water Systems Serving 98266
CALMAN JAMES L.
PWSID: WA5302011
40 served
ISLE AIRE BEACH ASSOCIATION
PWSID: WA5336268
125 served
PRAIRIE ESTATES WATER SYSTEM
PWSID: WA5330984
39 served
MAPLE FALLS WATER COOP
PWSID: WA5351100
222 served
HAMILTON WATER DEPARTMENT
PWSID: WA5330700
540 served
RIVER LANE COMMUNITY CLUB
PWSID: WA5372773
72 served
RIVER RD WATER ASSOCIATION
PWSID: WA5372800
30 served
PRAIRIE ACRES WATER SYSTEM
PWSID: WA5369157
90 served
Columbia Valley Water District
PWSID: WA5366110
2,648 served
WILDLIFE ACRES WATER ASSOCIATION
PWSID: WA5396882
46 served
WHATCOM COUNTY WATER DIST 13
PWSID: WA5395914
795 served
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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