City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#2593
Mosheim
County, TN
96 A
#2594 Mossville
County, IL
96 A
#2595 Mount Holly
County, NC
96 A
#2596 Mount Horeb
County, WI
96 A
#2597 Mount Vernon
County, NY
96 A
#2598 Mount Vernon
County, VA
96 A
#2599 Muleshoe
County, TX
96 A
#2600 Mulga
County, AL
96 A
#2601 Munising
County, MI
96 A
#2602 Nash
County, TX
96 A
#2603 Nauvoo
County, AL
96 A
#2604 Nevada City
County, CA
96 A
#2605 New Bremen
County, OH
96 A
#2606 New Carlisle
County, IN
96 A
#2607 New Castle
County, DE
96 A
#2608 New Castle
County, PA
96 A
#2609 New Franken
County, WI
96 A
#2610 New Gloucester
County, ME
96 A
#2611 New London
County, IA
96 A
#2612 New Richland
County, MN
96 A
#2613 New Tazewell
County, TN
96 A
#2614 New Windsor
County, MD
96 A
#2615 Newark
County, AR
96 A
#2616 Newell
County, SD
96 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.