City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#2665
Pinconning
County, MI
96 A
#2666 Pine Grove
County, CA
96 A
#2667 Pine Mountain Club
County, CA
96 A
#2668 Pinehurst
County, ID
96 A
#2669 Plainview
County, MN
96 A
#2670 Platte City
County, MO
96 A
#2671 Pleasanton
County, CA
96 A
#2672 Plumerville
County, AR
96 A
#2673 Plymouth
County, OH
96 A
#2674 Point Lookout
County, MO
96 A
#2675 Point Mugu
County, CA
96 A
#2676 Point Reyes Station
County, CA
96 A
#2677 Port Angeles
County, WA
96 A
#2678 Port Crane
County, NY
96 A
#2679 Port Ewen
County, NY
96 A
#2680 Port Neches
County, TX
96 A
#2681 Port Orchard
County, WA
96 A
#2682 Portland
County, TN
96 A
#2683 Portsmouth
County, VA
96 A
#2684 Portville
County, NY
96 A
#2685 Powell
County, WY
96 A
#2686 Prairie Du Chien
County, WI
96 A
#2687 Princeton
County, MO
96 A
#2688 Prior Lake
County, MN
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.