City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#8929
Dover
County, PA
64 C
#8930 Ecru
County, MS
64 C
#8931 Edwardsville
County, IL
64 C
#8932 Evans
County, GA
64 C
#8933 Fall River
County, MA
64 C
#8934 Farmer City
County, IL
64 C
#8935 Farr West
County, UT
64 C
#8936 Frostproof
County, FL
64 C
#8937 Fullerton
County, NE
64 C
#8938 Gilbert
County, SC
64 C
#8939 Grand Island
County, NE
64 C
#8940 Guymon
County, OK
64 C
#8941 Hazlehurst
County, MS
64 C
#8942 Heber City
County, UT
64 C
#8943 Herington
County, KS
64 C
#8944 Huntland
County, TN
64 C
#8945 Jacksonville
County, NC
64 C
#8946 Jb Mdl
County, NJ
64 C
#8947 Junction City
County, KS
64 C
#8948 Justice
County, IL
64 C
#8949 Kilmichael
County, MS
64 C
#8950 Kirkland
County, IL
64 C
#8951 Lake Barrington
County, IL
64 C
#8952 Lake View
County, IA
64 C
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.