City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#841
Pequot Lakes
County, MN
100 A
#842 Perris
County, CA
100 A
#843 Perry
County, NY
100 A
#844 Philip
County, SD
100 A
#845 Phillipsburg
County, KS
100 A
#846 Pickerington
County, OH
100 A
#847 Pierre
County, SD
100 A
#848 Pierz
County, MN
100 A
#849 Pimento
County, IN
100 A
#850 Pinckard
County, AL
100 A
#851 Pine Knoll Shores
County, NC
100 A
#852 Pine Mountain Valley
County, GA
100 A
#853 Pipestone
County, MN
100 A
#854 Plaistow
County, NH
100 A
#855 Plano
County, TX
100 A
#856 Pleasant Grove
County, AR
100 A
#857 Pleasant Hill
County, OR
100 A
#858 Plentywood
County, MT
100 A
#859 Plover
County, WI
100 A
#860 Point Comfort
County, TX
100 A
#861 Polo
County, MO
100 A
#862 Poplar
County, CA
100 A
#863 Poplar Grove
County, AR
100 A
#864 Port Hope
County, MI
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.