City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#6625
Whitwell
County, TN
84 B
#6626 Williamsburg
County, PA
84 B
#6627 Winesburg
County, OH
84 B
#6628 Wood River
County, IL
84 B
#6629 Woodbine
County, GA
84 B
#6630 Woodsville
County, NH
84 B
#6631 Woodward
County, IA
84 B
#6632 Arma
County, KS
83 B
#6633 Atchison
County, KS
83 B
#6634 Attica
County, IN
83 B
#6635 Austin
County, AR
83 B
#6636 Baker
County, FL
83 B
#6637 Bell Buckle
County, TN
83 B
#6638 Berea
County, OH
83 B
#6639 Berlin
County, NJ
83 B
#6640 Bolton
County, MA
83 B
#6641 Boring
County, OR
83 B
#6642 Brewster
County, NY
83 B
#6643 Bridge City
County, TX
83 B
#6644 Canyonville
County, OR
83 B
#6645 Carolina Beach
County, NC
83 B
#6646 Carthage
County, TN
83 B
#6647 Catlin
County, IL
83 B
#6648 Central City
County, PA
83 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.