#39 of 51A
Connecticut Water Quality
Connecticut ranks #39 out of 51 states for tap water quality with a score of 80.1 out of 100.
Summary
Overall Score
80.1
out of 100
Cities Tested
105
cities
Cities w/ Violations
102
97% of cities
Avg Contaminants
3.9
above guidelines
Population
26.9M
people affected
Best Cities in Connecticut
Pop: 6,052Score: 100
Pop: 2,151Score: 100
Pop: 3,294Score: 98
Pop: 15,245Score: 98
Pop: 710Score: 90
Cities Needing Improvement
Pop: 51,198Score: 75
Pop: 5,030Score: 80
Pop: 351,756Score: 80
Pop: 418,900Score: 80
Pop: 391,079Score: 80
Cities listed have the lowest water quality scores in Connecticut.
Get Connecticut Water Updates
We analyze new EPA data as it drops. Get the breakdown for Connecticut in your inbox.
Free forever. Unsubscribe anytime. We never share your email.
Frequently Asked Questions About Connecticut Water Quality
Connecticut ranks #39 out of 51 states and territories for water quality with a score of 80.1 out of 100 and a grade of A. A total of 105 cities were tested across the state.
Need contact data for Connecticut 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.