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#10 of 49A

North Dakota Water Quality

North Dakota ranks #10 out of 49 states for tap water quality with a score of 91.2 out of 100.

Based on 90 scored cities covering 71.7% of the state's served population.

Summary

Overall Score
91.2
out of 100
Cities Tested
90
cities
Cities w/ Violations
84
93% of cities
Avg Contaminants
2.1
above guidelines
Population
502,638
people affected

Best Cities in North Dakota

Score: 99.1
Score: 100
Score: 100
Score: 100
Score: 100

Cities Needing Improvement

Score: 85
Score: 89.4
Score: 90
Score: 96
Score: 76

Cities listed carry the most serious water quality verdicts in North Dakota, worst first, then the lowest scores. A city rated Safe is never listed.

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Frequently Asked Questions About North Dakota Water Quality

North Dakota ranks #10 out of 49 states and territories for water quality with a score of 91.2 out of 100 and a grade of A. A total of 90 cities were tested across the state.

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