City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#7561
Braselton
County, GA
78 B
#7562 Bremen
County, IN
78 B
#7563 Briarcliff
County, TX
78 B
#7564 Brockport
County, NY
78 B
#7565 Broxton
County, GA
78 B
#7566 Burnsville
County, WV
78 B
#7567 Cairo
County, GA
78 B
#7568 Cambridge
County, IL
78 B
#7569 Carl Junction
County, MO
78 B
#7570 Carlisle
County, PA
78 B
#7571 Caruthersville
County, MO
78 B
#7572 Cass Lake
County, MN
78 B
#7573 Cedar Springs
County, MI
78 B
#7574 Cedarburg
County, WI
78 B
#7575 Chalmette
County, LA
78 B
#7576 Champion
County, PA
78 B
#7577 Chandler
County, IN
78 B
#7578 Cherokee
County, AL
78 B
#7579 Clarinda
County, IA
78 B
#7580 Colony
County, OK
78 B
#7581 Columbia
County, NC
78 B
#7582 Conrad
County, IA
78 B
#7583 Council Bluffs
County, IA
78 B
#7584 Crab Orchard
County, KY
78 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.