City Water Quality Rankings in Pennsylvania
467 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#145
Summit Hill
County, PA
87 B
#146 York
County, PA
87 B
#147 Berlin
County, PA
86 B
#148 Biglerville
County, PA
86 B
#149 Doylestown
County, PA
86 B
#150 Glen Rock
County, PA
86 B
#151 Lyon Station
County, PA
86 B
#152 Millersburg
County, PA
86 B
#153 Mount Joy
County, PA
86 B
#154 New Philadelphia
County, PA
86 B
#155 Numine
County, PA
86 B
#156 Perkasie
County, PA
86 B
#157 Portersville
County, PA
86 B
#158 Ridgway
County, PA
86 B
#159 Royalton
County, PA
86 B
#160 Springboro
County, PA
86 B
#161 Springdale
County, PA
86 B
#162 Beach Lake
County, PA
85 B
#163 Center Valley
County, PA
85 B
#164 Duncansville
County, PA
85 B
#165 Fredericksburg
County, PA
85 B
#166 Frenchville
County, PA
85 B
#167 Lebanon
County, PA
85 B
#168 Millersville
County, PA
85 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.