City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#4945
Pine Mountain
County, GA
90 A
#4946 Pinedale
County, WY
90 A
#4947 Pipersville
County, PA
90 A
#4948 Pleasant Plains
County, IL
90 A
#4949 Pleasant Prairie
County, WI
90 A
#4950 Ponder
County, TX
90 A
#4951 Port Townsend
County, WA
90 A
#4952 Portland
County, TX
90 A
#4953 Postville
County, IA
90 A
#4954 Powdersville
County, SC
90 A
#4955 Prairie City
County, IA
90 A
#4956 Pulaski
County, TN
90 A
#4957 Purcell
County, OK
90 A
#4958 Purcellville
County, VA
90 A
#4959 Quinault
County, WA
90 A
#4960 Radford
County, VA
90 A
#4961 Rahway
County, NJ
90 A
#4962 Rainsville
County, AL
90 A
#4963 Ranburne
County, AL
90 A
#4964 Ranchester
County, WY
90 A
#4965 Randolph Twp
County, NJ
90 A
#4966 Rangeley
County, ME
90 A
#4967 Raynham
County, MA
90 A
#4968 Red Bay
County, AL
90 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.