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ZIP Code 98926 Water Quality
Washington · 21,898 people served · 8 water systems
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ExcellentZIP code 98926 is in Washington and is a small city from a drinking-water-service perspective, with 21,898 people served by 8 EPA-registered public water systems. It overlaps with 2 communities including Ellensburg, ELLENSBURG.
Within ZIP code 98926, the EPA Safe Drinking Water Information System (SDWIS) records no health-based Maximum Contaminant Level (MCL) exceedances during the past five years across the 8 water systems serving this postal area.
Last updated: 2026-05-18 · Source: EPA SDWIS
ZIP Code Location
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Cities in ZIP 98926
Water Systems Serving 98926
CASCADE VILLAGE MHP
PWSID: WA5311488
164 served
ELLENSBURG WATER DEPT
PWSID: WA5322950
20,900 served
GRASSLANDS WATER SYSTEM
PWSID: WA5329172
260 served
CENTRAL MOBILE HOME PARK
PWSID: WA5312170
110 served
QUAIL RUN MOBILE HOME PARK
PWSID: WA5339424
165 served
LAKEVIEW MOBILE TERRACE
PWSID: WA5345312
43 served
PONDEROSA MOBILE HOME PARK
PWSID: WA5368420
105 served
SPORTSMAN TRAILER PARK
PWSID: WA5383116
151 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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