#16 of 51A
Washington Water Quality
Washington ranks #16 out of 51 states for tap water quality with a score of 85.6 out of 100.
Summary
Overall Score
85.6
out of 100
Cities Tested
262
cities
Cities w/ Violations
240
92% of cities
Avg Contaminants
3.3
above guidelines
Population
37.5M
people affected
Best Cities in Washington
Pop: 2,119Score: 100
Pop: 319,678Score: 100
Pop: 261,841Score: 100
Pop: 2,130Score: 100
Pop: 33,254Score: 100
Cities Needing Improvement
Pop: 12,255Score: 75
Pop: 253,432Score: 75
Pop: 13,018Score: 75
Pop: 86,825Score: 75
Pop: 245,250Score: 75
Cities listed have the lowest water quality scores in Washington.
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Frequently Asked Questions About Washington Water Quality
Washington ranks #16 out of 51 states and territories for water quality with a score of 85.6 out of 100 and a grade of A. A total of 262 cities were tested across the state.
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