City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#7609
Floydada
County, TX
78 B
#7610 Forkland
County, AL
78 B
#7611 Fort Valley
County, GA
78 B
#7612 Fort Worth
County, TX
78 B
#7613 Fulton
County, MO
78 B
#7614 Geronimo
County, OK
78 B
#7615 Glen Dale
County, WV
78 B
#7616 Glenville
County, WV
78 B
#7617 Granville
County, OH
78 B
#7618 Green Valley
County, AZ
78 B
#7619 Greenbrier
County, TN
78 B
#7620 Greensburg
County, KY
78 B
#7621 Greenwood
County, MS
78 B
#7622 Gustine
County, CA
78 B
#7623 Hackettstown
County, NJ
78 B
#7624 Hagerstown
County, IN
78 B
#7625 Halfmoon
County, NY
78 B
#7626 Hawley
County, MN
78 B
#7627 Hawley
County, PA
78 B
#7628 Hays
County, NC
78 B
#7629 Hernandez
County, NM
78 B
#7630 Hertford
County, NC
78 B
#7631 Highlands
County, TX
78 B
#7632 Hodgkins
County, IL
78 B
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.