City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9073
Wynnewood
County, OK
67 C
#9074 Yauco
County, PR
67 C
#9075 Adrian
County, MN
66 C
#9076 Akron
County, NY
66 C
#9077 Alcorn State
County, MS
66 C
#9078 Algona
County, IA
66 C
#9079 Arnoldsville
County, GA
66 C
#9080 Ashland
County, IL
66 C
#9081 Atwater
County, OH
66 C
#9082 Auburndale
County, FL
66 C
#9083 Ava
County, MO
66 C
#9084 Beaumont
County, TX
66 C
#9085 Bellaire
County, MI
66 C
#9086 Bellefonte
County, PA
66 C
#9087 Boca Raton
County, FL
66 C
#9088 Boonville
County, MO
66 C
#9089 Buffalo
County, TX
66 C
#9090 Buffalo Gap
County, TX
66 C
#9091 Calhan
County, CO
66 C
#9092 Camp Hill
County, AL
66 C
#9093 Caseyville
County, IL
66 C
#9094 Celina
County, OH
66 C
#9095 Clarksville
County, TX
66 C
#9096 Claysburg
County, PA
66 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.