#34 of 51A
Delaware Water Quality
Delaware ranks #34 out of 51 states for tap water quality with a score of 81.3 out of 100.
Summary
Overall Score
81.3
out of 100
Cities Tested
29
cities
Cities w/ Violations
29
100% of cities
Avg Contaminants
5.7
above guidelines
Population
5.6M
people affected
Best Cities in Delaware
Pop: 254,019Score: 96
Pop: 26,575Score: 96
Pop: 0Score: 94
Pop: 3,634Score: 90
Pop: 11,345Score: 90
Cities Needing Improvement
Pop: 231,114Score: 80
Pop: 331,609Score: 80
Pop: 331,609Score: 80
Pop: 331,609Score: 80
Pop: 331,609Score: 80
Cities listed have the lowest water quality scores in Delaware.
Get Delaware Water Updates
We analyze new EPA data as it drops. Get the breakdown for Delaware in your inbox.
Free forever. Unsubscribe anytime. We never share your email.
Frequently Asked Questions About Delaware Water Quality
Delaware ranks #34 out of 51 states and territories for water quality with a score of 81.3 out of 100 and a grade of A. A total of 29 cities were tested across the state.
Need contact data for Delaware utilities?
Check Your City's Water Quality
See detailed water quality data and get personalized filter recommendations for your specific location.
Stay Informed About Your Water Quality
Get EPA reports, filter recommendations, and safety alerts for your area.
Join 10,000+ people protecting their families. Unsubscribe anytime.