City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#6769
Vernonia
County, OR
83 B
#6770 Wakefield
County, MA
83 B
#6771 Warren
County, TX
83 B
#6772 West Point
County, UT
83 B
#6773 Westby
County, WI
83 B
#6774 Westwego
County, LA
83 B
#6775 Wheatland
County, WY
83 B
#6776 Windsor
County, VA
83 B
#6777 Woodville
County, TX
83 B
#6778 Yoncalla
County, OR
83 B
#6779 Abilene
County, TX
82 B
#6780 Advance
County, MO
82 B
#6781 Alden
County, NY
82 B
#6782 Alta
County, IA
82 B
#6783 Alton
County, NH
82 B
#6784 Alturas
County, CA
82 B
#6785 Archbold
County, OH
82 B
#6786 Arco
County, ID
82 B
#6787 Arlington
County, MN
82 B
#6788 Arnolds Park
County, IA
82 B
#6789 Athens
County, LA
82 B
#6790 Athol
County, MA
82 B
#6791 Atkins
County, IA
82 B
#6792 Auburn
County, AL
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.