City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#5545
Ravenna
County, MI
88 B
#5546 Ray City
County, GA
88 B
#5547 Reading
County, MI
88 B
#5548 Refugio
County, TX
88 B
#5549 Remsen
County, IA
88 B
#5550 Represa
County, CA
88 B
#5551 Richfield
County, NC
88 B
#5552 Richmond
County, IL
88 B
#5553 Richmond
County, ME
88 B
#5554 River Falls
County, AL
88 B
#5555 Rockville
County, IN
88 B
#5556 Roscommon
County, MI
88 B
#5557 Round Rock
County, TX
88 B
#5558 Running Springs
County, CA
88 B
#5559 Sagamore Beach
County, MA
88 B
#5560 Salado
County, TX
88 B
#5561 San Felipe Pueblo
County, NM
88 B
#5562 Santa Ana
County, CA
88 B
#5563 Sauk Centre
County, MN
88 B
#5564 Sauk Rapids
County, MN
88 B
#5565 Schertz
County, TX
88 B
#5566 Schoolcraft
County, MI
88 B
#5567 Science Hill
County, KY
88 B
#5568 Seaman
County, OH
88 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.