City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#4969
Remington
County, VA
90 A
#4970 Reno
County, NV
90 A
#4971 Rice
County, MN
90 A
#4972 Richland
County, PA
90 A
#4973 Rising Sun
County, IN
90 A
#4974 Roachdale
County, IN
90 A
#4975 Roanoke
County, IN
90 A
#4976 Robins Afb
County, GA
90 A
#4977 Rochester
County, PA
90 A
#4978 Rockaway Beach
County, OR
90 A
#4979 Rose Hill
County, KS
90 A
#4980 Roseburg
County, OR
90 A
#4981 Rugby
County, ND
90 A
#4982 Sabattus
County, ME
90 A
#4983 Salem
County, NH
90 A
#4984 Saltillo
County, TN
90 A
#4985 Salvisa
County, KY
90 A
#4986 San Juan Bautista
County, CA
90 A
#4987 Sandy Hook
County, MS
90 A
#4988 Sanger
County, TX
90 A
#4989 Santa Rosa
County, CA
90 A
#4990 Santa Ysabel
County, CA
90 A
#4991 Santo Domingo
County, NM
90 A
#4992 Sauquoit
County, NY
90 A
Frequently Asked Questions
How are city water quality rankings calculated?
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 US cities directly?
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.