City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9961
Warrensburg
County, IL
54 D
#9962 Washburn
County, IL
54 D
#9963 Waynesboro
County, MS
54 D
#9964 Webster
County, MA
54 D
#9965 Whitesburg
County, KY
54 D
#9966 Bear Mountain
County, NY
53 D
#9967 Berry
County, AL
53 D
#9968 Big Sandy
County, TX
53 D
#9969 Chilton
County, TX
53 D
#9970 Chino
County, CA
53 D
#9971 Claremore
County, OK
53 D
#9972 Crestview
County, FL
53 D
#9973 El Reno
County, OK
53 D
#9974 Eldon
County, MO
53 D
#9975 Electra
County, TX
53 D
#9976 Enfield
County, NH
53 D
#9977 Filer
County, ID
53 D
#9978 Florence
County, NJ
53 D
#9979 Gatesville
County, TX
53 D
#9980 Glasgow
County, PA
53 D
#9981 Haubstadt
County, IN
53 D
#9982 Hooker
County, OK
53 D
#9983 Hotevilla
County, AZ
53 D
#9984 Ipswich
County, MA
53 D
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.