City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#889
Rensselaer
County, IN
100 A
#890 Rentz
County, GA
100 A
#891 Renville
County, MN
100 A
#892 Rialto
County, CA
100 A
#893 Richardson
County, TX
100 A
#894 Richfield
County, MN
100 A
#895 Richfield
County, WI
100 A
#896 Richlands
County, VA
100 A
#897 Richmond
County, MN
100 A
#898 Richmond
County, VA
100 A
#899 Ridgecrest
County, CA
100 A
#900 Ridgefield
County, WA
100 A
#901 Ridgely
County, MD
100 A
#902 Rio Dell
County, CA
100 A
#903 Rio Vista
County, CA
100 A
#904 Ripon
County, CA
100 A
#905 Riverside
County, CA
100 A
#906 Riverton
County, KS
100 A
#907 Riverview
County, FL
100 A
#908 Roanoke
County, TX
100 A
#909 Robbinsdale
County, MN
100 A
#910 Rochester
County, MI
100 A
#911 Rochester Hills
County, MI
100 A
#912 Rock Spring
County, GA
100 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.