City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#8761
Osage
County, IA
70 C
#8762 Owingsville
County, KY
70 C
#8763 Palatine
County, IL
70 C
#8764 Paradise
County, CA
70 C
#8765 Paxton
County, IN
70 C
#8766 Perryville
County, AR
70 C
#8767 Pine Grove
County, PA
70 C
#8768 Pine Level
County, NC
70 C
#8769 Pittsgrove
County, NJ
70 C
#8770 Ponchatoula
County, LA
70 C
#8771 Poteet
County, TX
70 C
#8772 Potts Camp
County, MS
70 C
#8773 Providence
County, RI
70 C
#8774 Quakertown
County, PA
70 C
#8775 Rhinebeck
County, NY
70 C
#8776 Riddleton
County, TN
70 C
#8777 Rison
County, AR
70 C
#8778 Riverside
County, IA
70 C
#8779 Rockport
County, IN
70 C
#8780 Rockport
County, MA
70 C
#8781 Rowley
County, MA
70 C
#8782 Salem
County, SD
70 C
#8783 Salisbury
County, MA
70 C
#8784 San Antonio
County, FL
70 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.