City Water Quality Rankings in Rhode Island
30 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#25
Narragansett
County, RI
36 F
#26 Harrisville
County, RI
11 F
#27 Block Island
County, RI
0 F
#28 Prudence Island
County, RI
0 F
#29 West Kingston
County, RI
0 F
#30 Westerly
County, RI
0 F
Frequently Asked Questions
How are city water quality rankings calculated in Rhode Island?
WaterQ city rankings are based on EPA SDWIS data across local public water systems, including contaminant detections, compliance violations, and recency-weighted score signals.
Can I compare two cities in Rhode Island?
Yes. Use the city comparison links on this page or open the Compare tool to evaluate two cities side by side on score, grade, and water system coverage.
How often does WaterQ refresh city data?
City-level metrics refresh when new EPA data is processed. Check city pages for latest score and violation context.