City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9073
Ankeny
County, IA
62 C
#9074 Aplington
County, IA
62 C
#9075 Artesia
County, NM
62 C
#9076 Ashland
County, PA
62 C
#9077 Auburn
County, GA
62 C
#9078 Banner Elk
County, NC
62 C
#9079 Banning
County, CA
62 C
#9080 Bastrop
County, TX
62 C
#9081 Bearden
County, AR
62 C
#9082 Belleville
County, AR
62 C
#9083 Belmont
County, WV
62 C
#9084 Bridgeport
County, IL
62 C
#9085 Broken Bow
County, OK
62 C
#9086 Brooksville
County, FL
62 C
#9087 Capitan
County, NM
62 C
#9088 Center Point
County, IA
62 C
#9089 Charlotte Courthouse
County, VA
62 C
#9090 Clatskanie
County, OR
62 C
#9091 Coalville
County, UT
62 C
#9092 Como
County, MS
62 C
#9093 Cortland
County, IL
62 C
#9094 Coulterville
County, IL
62 C
#9095 East Palatka
County, FL
62 C
#9096 Elkader
County, IA
62 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.