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#29 of 49A

Oklahoma Water Quality

Oklahoma ranks #29 out of 49 states for tap water quality with a score of 84.2 out of 100.

Based on 358 scored cities covering 64.8% of the state's served population.

Summary

Overall Score
84.2
out of 100
Cities Tested
358
cities
Cities w/ Violations
350
98% of cities
Avg Contaminants
3.0
above guidelines
Population
4.1M
people affected

Best Cities in Oklahoma

Score: 100
Score: 100
Score: 100
Score: 100
Score: 100

Cities Needing Improvement

Score: 85
Score: 55
Score: 55
Score: 55
Score: 60

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

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Frequently Asked Questions About Oklahoma Water Quality

Oklahoma ranks #29 out of 49 states and territories for water quality with a score of 84.2 out of 100 and a grade of A. A total of 358 cities were tested across the state.

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