City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10777
Madison
County, FL
15 F
#10778 Manchester
County, KY
15 F
#10779 Orange
County, NJ
15 F
#10780 Pennsville
County, NJ
15 F
#10781 Saint Albans
County, WV
15 F
#10782 Winthrop Harbor
County, IL
15 F
#10783 Blossburg
County, PA
14 F
#10784 Glen Fork
County, WV
14 F
#10785 Hopatcong
County, NJ
14 F
#10786 Inola
County, OK
14 F
#10787 Joseph City
County, AZ
14 F
#10788 Knox City
County, TX
14 F
#10789 Le Center
County, MN
14 F
#10790 Macy
County, NE
14 F
#10791 Makanda
County, IL
14 F
#10792 Melville
County, LA
14 F
#10793 Robstown
County, TX
14 F
#10794 Shelbyville
County, TX
14 F
#10795 Swifton
County, AR
14 F
#10796 Thief River Falls
County, MN
14 F
#10797 Toulon
County, IL
14 F
#10798 Weirton
County, WV
14 F
#10799 Metcalfe
County, MS
13 F
#10800 Monroe
County, LA
13 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.