City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#4417
Woodbury Heights
County, NJ
92 A
#4418 Woodstock
County, NY
92 A
#4419 Yadkinville
County, NC
92 A
#4420 Yukon
County, OK
92 A
#4421 Zumbrota
County, MN
92 A
#4422 Adjuntas
County, PR
91 A
#4423 Albany
County, GA
91 A
#4424 Anaconda
County, MT
91 A
#4425 Andalusia
County, AL
91 A
#4426 Anderson
County, CA
91 A
#4427 Andover
County, OH
91 A
#4428 Arlington
County, VA
91 A
#4429 Attalla
County, AL
91 A
#4430 Auburn
County, WA
91 A
#4431 Augusta
County, ME
91 A
#4432 Ault
County, CO
91 A
#4433 Aurora
County, MN
91 A
#4434 Baker City
County, OR
91 A
#4435 Beech Mountain
County, NC
91 A
#4436 Bellefontaine
County, OH
91 A
#4437 Belton
County, SC
91 A
#4438 Bend
County, OR
91 A
#4439 Berkeley Twp
County, NJ
91 A
#4440 Berlin
County, OH
91 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.