City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#7057
Covington
County, VA
81 B
#7058 Craigsville
County, WV
81 B
#7059 Creston
County, IA
81 B
#7060 Cripple Creek
County, CO
81 B
#7061 Crystal Springs
County, MS
81 B
#7062 Darien
County, GA
81 B
#7063 Drain
County, OR
81 B
#7064 Dubuque
County, IA
81 B
#7065 Earlsboro
County, OK
81 B
#7066 East Alton
County, IL
81 B
#7067 Ellis
County, KS
81 B
#7068 Eureka
County, KS
81 B
#7069 Flemingsburg
County, KY
81 B
#7070 Flemington
County, NJ
81 B
#7071 Forest City
County, NC
81 B
#7072 Fort Stockton
County, TX
81 B
#7073 Franklin
County, MO
81 B
#7074 Fulshear
County, TX
81 B
#7075 Gray
County, GA
81 B
#7076 Great Bend
County, KS
81 B
#7077 Hammond
County, IN
81 B
#7078 Haskell
County, NJ
81 B
#7079 Hayti
County, MO
81 B
#7080 Henry
County, IL
81 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.