City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#697
Perry
County, NY
100 A
#698 Philip
County, SD
100 A
#699 Phillipsburg
County, KS
100 A
#700 Pickerington
County, OH
100 A
#701 Pierre
County, SD
100 A
#702 Pierz
County, MN
100 A
#703 Pinckard
County, AL
100 A
#704 Pine Knoll Shores
County, NC
100 A
#705 Pine Mountain Valley
County, GA
100 A
#706 Pixley
County, CA
100 A
#707 Plano
County, TX
100 A
#708 Platteville
County, CO
100 A
#709 Pleasant Grove
County, AR
100 A
#710 Pleasant Hill
County, OR
100 A
#711 Plentywood
County, MT
100 A
#712 Plover
County, WI
100 A
#713 Poplar
County, CA
100 A
#714 Poplar Grove
County, AR
100 A
#715 Port Hope
County, MI
100 A
#716 Prairieville
County, LA
100 A
#717 Prattsville
County, AR
100 A
#718 Prosperity
County, SC
100 A
#719 Prosser
County, WA
100 A
#720 Pulaski
County, WI
100 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.