WaterQ

City Water Quality Rankings in Oregon

180 cities ranked by drinking water quality.

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Popular city water quality comparisons

Gearhart, OR vs Happy Valley, OR Compare → Lakeside, OR vs Mt Hood, OR Compare → Ophir, OR vs Oregon City, OR Compare → Pleasant Hill, OR vs West Linn, OR Compare →

Trending Cities

Fairbanks, AK Fresno, CA San Jose, CA Sacramento, CA San Francisco, CA Houston, TX Fargo, ND
#121
Netarts
County, OR
87 B
#122
St Helens
County, OR
87 B
#123
Corbett
County, OR
86 B
#124
Dillard
County, OR
86 B
#125
Pendleton
County, OR
86 B
#126
Rickreall
County, OR
86 B
#127
Stanfield
County, OR
86 B
#128
The Dalles
County, OR
86 B
#129
Vale
County, OR
86 B
#130
Waldport
County, OR
86 B
#131
Beaverton
County, OR
85 B
#132
Harrisburg
County, OR
85 B
#133
Myrtle Point
County, OR
85 B
#134
Tillamook
County, OR
85 B
#135
Bay City
County, OR
84 B
#136
Canby
County, OR
84 B
#137
Dundee
County, OR
84 B
#138
Ontario
County, OR
84 B
#139
Salem
County, OR
84 B
#140
Boring
County, OR
83 B
#141
Canyonville
County, OR
83 B
#142
Vernonia
County, OR
83 B
#143
Yoncalla
County, OR
83 B
#144
Bandon
County, OR
82 B

Frequently Asked Questions

How are city water quality rankings calculated in Oregon?

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 Oregon?

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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