City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9673
Fort Pierce
County, FL
53 D
#9674 Galena
County, IL
53 D
#9675 Germantown
County, TN
53 D
#9676 Grafton
County, MA
53 D
#9677 Holly
County, MI
53 D
#9678 Huron
County, CA
53 D
#9679 Jefferson
County, TX
53 D
#9680 Kilgore
County, TX
53 D
#9681 Mansfield
County, OH
53 D
#9682 Newton
County, TX
53 D
#9683 Oak Grove
County, LA
53 D
#9684 Oakdale
County, LA
53 D
#9685 Parsons
County, WV
53 D
#9686 Pauls Valley
County, OK
53 D
#9687 Pineland
County, TX
53 D
#9688 Southampton
County, PA
53 D
#9689 Van Horn
County, TX
53 D
#9690 Waterford
County, PA
53 D
#9691 Wilmette
County, IL
53 D
#9692 Wyoming
County, IL
53 D
#9693 Aliceville
County, AL
52 D
#9694 Annapolis
County, IL
52 D
#9695 Booneville
County, KY
52 D
#9696 Bristol
County, FL
52 D
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.