City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#2689
Pueblo
County, CO
96 A
#2690 Pullman
County, WA
96 A
#2691 Quincy
County, MI
96 A
#2692 Quitman
County, TX
96 A
#2693 Ramer
County, AL
96 A
#2694 Rancho Viejo
County, TX
96 A
#2695 Redfield
County, SD
96 A
#2696 Redwood City
County, CA
96 A
#2697 Reed City
County, MI
96 A
#2698 Richland Hills
County, TX
96 A
#2699 Rio Linda
County, CA
96 A
#2700 Ripley
County, TN
96 A
#2701 Roberts
County, WI
96 A
#2702 Rochester
County, IL
96 A
#2703 Rockford
County, AL
96 A
#2704 Rockford
County, IL
96 A
#2705 Rockmart
County, GA
96 A
#2706 Rocky Top
County, TN
96 A
#2707 Rohnert Park
County, CA
96 A
#2708 Rolla
County, MO
96 A
#2709 Roopville
County, GA
96 A
#2710 Roxana
County, IL
96 A
#2711 Rumford
County, ME
96 A
#2712 Russellville
County, AL
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.