City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10825
Ardmore
County, OK
27 F
#10826 Baxter Springs
County, KS
27 F
#10827 Cache
County, OK
27 F
#10828 Carthage
County, IL
27 F
#10829 Chester
County, TX
27 F
#10830 Denmark
County, SC
27 F
#10831 Morehead
County, KY
27 F
#10832 Orange
County, NJ
27 F
#10833 Palatka
County, FL
27 F
#10834 Port Aransas
County, TX
27 F
#10835 Port Saint Lucie
County, FL
27 F
#10836 Tchula
County, MS
27 F
#10837 Troy
County, NC
27 F
#10838 Woodbury
County, NY
27 F
#10839 Arlington Heights
County, IL
26 F
#10840 Bagdad
County, AZ
26 F
#10841 Bullhead City
County, AZ
26 F
#10842 Casa Grande
County, AZ
26 F
#10843 Coconut Creek
County, FL
26 F
#10844 Kempner
County, TX
26 F
#10845 Lambert
County, MS
26 F
#10846 Miami
County, OK
26 F
#10847 Mingoville
County, PA
26 F
#10848 Monroe Township
County, NJ
26 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.