City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#865
Prairieville
County, LA
100 A
#866 Prattsville
County, AR
100 A
#867 Proctor
County, AR
100 A
#868 Prosperity
County, SC
100 A
#869 Prosser
County, WA
100 A
#870 Pulaski
County, WI
100 A
#871 Purdy
County, MO
100 A
#872 Quapaw
County, OK
100 A
#873 Queen City
County, MO
100 A
#874 Raceland
County, KY
100 A
#875 Ralph
County, AL
100 A
#876 Ramona
County, CA
100 A
#877 Ramsey
County, MN
100 A
#878 Rancho Santa Fe
County, CA
100 A
#879 Rancho Santa Margarita
County, CA
100 A
#880 Randolph
County, AL
100 A
#881 Randolph
County, NY
100 A
#882 Ranhco Mirage
County, CA
100 A
#883 Rantoul
County, KS
100 A
#884 Reader
County, WV
100 A
#885 Red Wing
County, MN
100 A
#886 Redfield
County, AR
100 A
#887 Redstone Arsenal
County, AL
100 A
#888 Reese
County, MI
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.