City Water Quality Rankings in Pennsylvania
467 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#97
Downingtown
County, PA
90 A
#98 Freeland
County, PA
90 A
#99 Harmony
County, PA
90 A
#100 Hollidaysburg
County, PA
90 A
#101 Indiana
County, PA
90 A
#102 Leechburg
County, PA
90 A
#103 Levittown
County, PA
90 A
#104 Littlestown
County, PA
90 A
#105 Macungie
County, PA
90 A
#106 New Bethlehem
County, PA
90 A
#107 New Hope
County, PA
90 A
#108 New Oxford
County, PA
90 A
#109 Oakmont
County, PA
90 A
#110 Oil City
County, PA
90 A
#111 Pipersville
County, PA
90 A
#112 Richland
County, PA
90 A
#113 Rochester
County, PA
90 A
#114 Schwenksville
County, PA
90 A
#115 Scranton
County, PA
90 A
#116 Shohola
County, PA
90 A
#117 West Reading
County, PA
90 A
#118 Clymer
County, PA
89 B
#119 Franklin
County, PA
89 B
#120 Mill Creek
County, PA
89 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.