City Water Quality Rankings in Rhode Island
30 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#1
Greenville
County, RI
100 A
#2 Kingston
County, RI
100 A
#3 Lincoln
County, RI
100 A
#4 Scituate
County, RI
100 A
#5 Cumberland
County, RI
98 A
#6 West Greenwich
County, RI
98 A
#7 Wood River Junction
County, RI
97 A
#8 Woonsocket
County, RI
97 A
#9 Pascoag
County, RI
96 A
#10 North Scituate
County, RI
95 A
#11 Pawtucket
County, RI
95 A
#12 North Smithfield
County, RI
90 A
#13 East Providence
County, RI
88 B
#14 Warwick
County, RI
84 B
#15 Smithfield
County, RI
80 B
#16 Newport
County, RI
76 B
#17 Wakefield
County, RI
75 B
#18 Providence
County, RI
70 C
#19 Tiverton
County, RI
68 C
#20 Wyoming
County, RI
68 C
#21 Portsmouth
County, RI
65 C
#22 North Kingstown
County, RI
50 D
#23 Jamestown
County, RI
47 D
#24 Warren
County, RI
40 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.