City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#6961
Philadelphia
County, MO
82 B
#6962 Philadelphia
County, PA
82 B
#6963 Pilot Mountain
County, NC
82 B
#6964 Plaquemine
County, LA
82 B
#6965 Pocomoke City
County, MD
82 B
#6966 Ponce Inlet
County, FL
82 B
#6967 Potsdam
County, NY
82 B
#6968 Price
County, UT
82 B
#6969 Proctor
County, WV
82 B
#6970 Quitman
County, GA
82 B
#6971 Raywood
County, TX
82 B
#6972 Reading
County, PA
82 B
#6973 Redford
County, MI
82 B
#6974 Reform
County, AL
82 B
#6975 Richwood
County, TX
82 B
#6976 Riverhead
County, NY
82 B
#6977 Rosemont
County, IL
82 B
#6978 Rossville
County, KS
82 B
#6979 Ruleville
County, MS
82 B
#6980 Rupert
County, ID
82 B
#6981 Ruth
County, MS
82 B
#6982 Sacramento
County, KY
82 B
#6983 Sanborn
County, IA
82 B
#6984 Sanger
County, CA
82 B
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.