Hawaii Water Quality
Hawaii ranks #1 out of 49 states for tap water quality with a score of 97.5 out of 100.
Based on 19 scored cities covering 26.2% of the state's served population.
Summary
Best Cities in Hawaii
Cities Needing Improvement
Cities listed carry the most serious water quality verdicts in Hawaii, worst first, then the lowest scores. A city rated Safe is never listed.
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Frequently Asked Questions About Hawaii Water Quality
Hawaii ranks #1 out of 49 states and territories for water quality with a score of 97.5 out of 100 and a grade of A. A total of 19 cities were tested across the state.
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