City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#7033
White Haven
County, PA
82 B
#7034 Whittington
County, IL
82 B
#7035 Winfield
County, KS
82 B
#7036 Winterport
County, ME
82 B
#7037 Winthrop
County, MA
82 B
#7038 Abilene
County, KS
81 B
#7039 Albany
County, NY
81 B
#7040 Allison Park
County, PA
81 B
#7041 Alvord
County, TX
81 B
#7042 Ammon
County, ID
81 B
#7043 Anderson
County, IN
81 B
#7044 Andrews
County, SC
81 B
#7045 Arkansas City
County, KS
81 B
#7046 Avon
County, NJ
81 B
#7047 Bessemer
County, AL
81 B
#7048 Blackville
County, SC
81 B
#7049 Brunswick
County, MO
81 B
#7050 Centralia
County, IL
81 B
#7051 Charlotte
County, NC
81 B
#7052 Clinton
County, PA
81 B
#7053 Clintonville
County, WI
81 B
#7054 Columbia
County, AL
81 B
#7055 Columbia
County, PA
81 B
#7056 Courtland
County, MS
81 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.