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

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#145
Boardman
County, OR
82 B
#146
Creswell
County, OR
82 B
#147
Gold Hill
County, OR
82 B
#148
Sweet Home
County, OR
82 B
#149
Talent
County, OR
82 B
#150
Drain
County, OR
81 B
#151
Rogue River
County, OR
81 B
#152
Sandy
County, OR
81 B
#153
Carlton
County, OR
80 B
#154
Falls City
County, OR
80 B
#155
La Grande
County, OR
80 B
#156
Oakridge
County, OR
80 B
#157
Amity
County, OR
79 B
#158
Astoria
County, OR
79 B
#159
Cannon Beach
County, OR
79 B
#160
Lafayette
County, OR
78 B
#161
Lakeview
County, OR
77 B
#162
Silverton
County, OR
74 C
#163
Banks
County, OR
73 C
#164
Cascade Locks
County, OR
73 C
#165
Newberg
County, OR
73 C
#166
Scappoose
County, OR
73 C
#167
Sheridan
County, OR
72 C
#168
Coquille
County, OR
71 C

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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