City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10369
Trenton
County, NJ
36 F
#10370 Walton
County, WV
36 F
#10371 Washington
County, GA
36 F
#10372 Wayne
County, OK
36 F
#10373 West Hamlin
County, WV
36 F
#10374 Williamstown
County, WV
36 F
#10375 Wisner
County, LA
36 F
#10376 Zapata
County, TX
36 F
#10377 Altamont
County, IL
35 F
#10378 Amelia
County, LA
35 F
#10379 Bald Knob
County, AR
35 F
#10380 Brewton
County, AL
35 F
#10381 Burbank
County, IL
35 F
#10382 Cedar Grove
County, NJ
35 F
#10383 Coconut Creek
County, FL
35 F
#10384 Cottonwood
County, AL
35 F
#10385 Highwood
County, IL
35 F
#10386 Lemont
County, IL
35 F
#10387 Liberty
County, KY
35 F
#10388 Manteno
County, IL
35 F
#10389 Mars Hill
County, ME
35 F
#10390 Maryville
County, MO
35 F
#10391 Milledgeville
County, GA
35 F
#10392 Monee
County, IL
35 F
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.