City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10897
Blairsville
County, PA
22 F
#10898 Brattleboro
County, VT
22 F
#10899 Clarksdale
County, MS
22 F
#10900 Colfax
County, LA
22 F
#10901 Davie
County, FL
22 F
#10902 Georgetown
County, MA
22 F
#10903 Glenwood
County, AR
22 F
#10904 Grinnell
County, IA
22 F
#10905 Joseph City
County, AZ
22 F
#10906 Kamas
County, UT
22 F
#10907 King Of Prussia
County, PA
22 F
#10908 Lykens
County, PA
22 F
#10909 Melrose Park
County, IL
22 F
#10910 Milford
County, OH
22 F
#10911 Mount Union
County, PA
22 F
#10912 Mt Carmel
County, IL
22 F
#10913 Murphy
County, NC
22 F
#10914 Roslyn
County, NY
22 F
#10915 Westfield
County, MA
22 F
#10916 Hawthorne
County, NJ
21 F
#10917 Lawrenceville
County, IL
21 F
#10918 Manchester
County, KY
21 F
#10919 Mansfield
County, PA
21 F
#10920 Mcdoqwell
County, KY
21 F
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.