City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#6673
Flagler Beach
County, FL
83 B
#6674 Flora
County, IL
83 B
#6675 Flossmoor
County, IL
83 B
#6676 Fort Meade
County, FL
83 B
#6677 Franklin
County, WI
83 B
#6678 Fraser
County, CO
83 B
#6679 Freehold
County, NJ
83 B
#6680 Gallup
County, NM
83 B
#6681 Georgetown
County, TX
83 B
#6682 Glasgow
County, MO
83 B
#6683 Greenwich
County, NY
83 B
#6684 Grosse Pointe Park
County, MI
83 B
#6685 Gulfport
County, FL
83 B
#6686 Hayneville
County, AL
83 B
#6687 Hebron
County, IL
83 B
#6688 Hebron
County, IN
83 B
#6689 Helena
County, MT
83 B
#6690 Hempstead
County, NY
83 B
#6691 Hernando
County, MS
83 B
#6692 Hillsboro
County, KS
83 B
#6693 Hortonville
County, WI
83 B
#6694 Ingleside
County, IL
83 B
#6695 Ione
County, CA
83 B
#6696 Jeffersonville
County, GA
83 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.