WaterQ

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.

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