City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9409
Queen Creek
County, AZ
63 C
#9410 Remlap
County, AL
63 C
#9411 Rio Grande
County, NJ
63 C
#9412 San German
County, PR
63 C
#9413 Seneca
County, MO
63 C
#9414 St. Clairsville
County, OH
63 C
#9415 Stillwater
County, OK
63 C
#9416 Tama
County, IA
63 C
#9417 Troutman
County, NC
63 C
#9418 Troy
County, IN
63 C
#9419 Village Of Green Island
County, NY
63 C
#9420 Wadesboro
County, NC
63 C
#9421 West Hamlin
County, WV
63 C
#9422 Amelia
County, LA
62 C
#9423 Ankeny
County, IA
62 C
#9424 Aplington
County, IA
62 C
#9425 Banning
County, CA
62 C
#9426 Bedford
County, IA
62 C
#9427 Benton Harbor
County, MI
62 C
#9428 Bluefield
County, WV
62 C
#9429 Broken Bow
County, OK
62 C
#9430 Burlington
County, MA
62 C
#9431 Burns Flat
County, OK
62 C
#9432 Calhoun City
County, MS
62 C
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.