WaterQ

City Water Quality Rankings in Washington

259 cities ranked by drinking water quality.

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Popular city water quality comparisons

Anderson Island, WA vs Asotin, WA Compare → Bainbridge Island, WA vs Bellevue, WA Compare → Bridgeport, WA vs Burien, WA Compare → Cheney, WA vs Clarkston, WA Compare →

Trending Cities

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#97
Greenacres
County, WA
98 A
#98
Hoodsport
County, WA
98 A
#99
Issaquah
County, WA
98 A
#100
Kalama
County, WA
98 A
#101
Kelso
County, WA
98 A
#102
Kenmore
County, WA
98 A
#103
Lacey
County, WA
98 A
#104
Lake Forest Park
County, WA
98 A
#105
Lopez Island
County, WA
98 A
#106
Lynnwood
County, WA
98 A
#107
Malaga
County, WA
98 A
#108
Maple Falls
County, WA
98 A
#109
Mccleary
County, WA
98 A
#110
Milton
County, WA
98 A
#111
Newport
County, WA
98 A
#112
Omak
County, WA
98 A
#113
Onalaska
County, WA
98 A
#114
Oroville
County, WA
98 A
#115
Orting
County, WA
98 A
#116
Port Ludlow
County, WA
98 A
#117
Raymond
County, WA
98 A
#118
Redmond
County, WA
98 A
#119
Ritzville
County, WA
98 A
#120
Roy
County, WA
98 A

Frequently Asked Questions

How are city water quality rankings calculated in Washington?

WaterQ city rankings are based on EPA SDWIS data across local public water systems, including contaminant detections, compliance violations, and recency-weighted score signals.

Can I compare two cities in Washington?

Yes. Use the city comparison links on this page or open the Compare tool to evaluate two cities side by side on score, grade, and water system coverage.

How often does WaterQ refresh city data?

City-level metrics refresh when new EPA data is processed. Check city pages for latest score and violation context.

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