City Water Quality Rankings in Pennsylvania
464 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#97
Scranton
County, PA
90 A
#98 Sharon
County, PA
90 A
#99 Shohola
County, PA
90 A
#100 Waynesboro
County, PA
90 A
#101 West Reading
County, PA
90 A
#102 Jefferson
County, PA
89 B
#103 Mechanicsburg
County, PA
89 B
#104 Reinholds
County, PA
89 B
#105 Shrewsbury
County, PA
89 B
#106 Bally
County, PA
88 B
#107 Berlin
County, PA
88 B
#108 Catasauqua
County, PA
88 B
#109 Elizabethville
County, PA
88 B
#110 Harrisburg
County, PA
88 B
#111 Homer City
County, PA
88 B
#112 Lake City
County, PA
88 B
#113 Lititz
County, PA
88 B
#114 Mcmurry
County, PA
88 B
#115 Mill Creek
County, PA
88 B
#116 Stewartstown
County, PA
88 B
#117 University Park
County, PA
88 B
#118 Baden
County, PA
87 B
#119 Cheswick
County, PA
87 B
#120 Freeland
County, PA
87 B
Frequently Asked Questions
How are city water quality rankings calculated in Pennsylvania?
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 cities in Pennsylvania?
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.