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Delaware Water Quality
Delaware ranks #41 out of 49 states for tap water quality with a score of 77.4 out of 100.
Based on 31 scored cities covering 53% of the state's served population.
Summary
Best Cities in Delaware
Cities Needing Improvement
Cities listed carry the most serious water quality verdicts in Delaware, worst first, then the lowest scores. A city rated Safe is never listed.
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Frequently Asked Questions About Delaware Water Quality
Delaware ranks #41 out of 49 states and territories for water quality with a score of 77.4 out of 100 and a grade of B. A total of 31 cities were tested across the state.
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