City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#3097
Banks
County, AL
94 A
#3098 Barnstable
County, MA
94 A
#3099 Barstow
County, CA
94 A
#3100 Bayard
County, NM
94 A
#3101 Bayshore
County, NY
94 A
#3102 Bear River
County, WY
94 A
#3103 Beckley
County, WV
94 A
#3104 Belfast
County, ME
94 A
#3105 Belfield
County, ND
94 A
#3106 Bells
County, TN
94 A
#3107 Bellville
County, OH
94 A
#3108 Belmond
County, IA
94 A
#3109 Belmont
County, MA
94 A
#3110 Beloit
County, WI
94 A
#3111 Bennet
County, NE
94 A
#3112 Benson
County, NC
94 A
#3113 Bently
County, LA
94 A
#3114 Bentonville
County, AK
94 A
#3115 Berlin
County, WI
94 A
#3116 Berryton
County, KS
94 A
#3117 Berthoud
County, CO
94 A
#3118 Bessemer
County, MI
94 A
#3119 Bethany
County, LA
94 A
#3120 Bethpage
County, TN
94 A
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.