City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#6865
Fort Davis
County, TX
82 B
#6866 Fredonia
County, KY
82 B
#6867 Frisco
County, TX
82 B
#6868 Fulton
County, AL
82 B
#6869 Gastonia
County, NC
82 B
#6870 Georgetown
County, IN
82 B
#6871 Gig Harbor
County, WA
82 B
#6872 Gold Hill
County, OR
82 B
#6873 Graceville
County, FL
82 B
#6874 Grand Chute
County, WI
82 B
#6875 Grandview
County, TX
82 B
#6876 Greensburg
County, IN
82 B
#6877 Hamel
County, IL
82 B
#6878 Hamilton
County, MS
82 B
#6879 Hartford
County, MI
82 B
#6880 Helmetta
County, NJ
82 B
#6881 Henning
County, TN
82 B
#6882 Hillsboro
County, MO
82 B
#6883 Hillsboro
County, MS
82 B
#6884 Hingham
County, MA
82 B
#6885 Holly Springs
County, NC
82 B
#6886 Holstein
County, IA
82 B
#6887 Honesdale
County, PA
82 B
#6888 Hopedale
County, MA
82 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.