City Water Quality Rankings in Pennsylvania
467 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#121
Palmerton
County, PA
89 B
#122 Port Allegany
County, PA
89 B
#123 Pottstown
County, PA
89 B
#124 Richlandtown
County, PA
89 B
#125 Sellersville
County, PA
89 B
#126 Shrewsbury
County, PA
89 B
#127 Waynesboro
County, PA
89 B
#128 Bally
County, PA
88 B
#129 Catawissa
County, PA
88 B
#130 East Petersburg
County, PA
88 B
#131 Homer City
County, PA
88 B
#132 Huntingdon
County, PA
88 B
#133 Lake City
County, PA
88 B
#134 Lititz
County, PA
88 B
#135 Mars
County, PA
88 B
#136 Mcmurry
County, PA
88 B
#137 New Milford
County, PA
88 B
#138 Newville
County, PA
88 B
#139 Stewartstown
County, PA
88 B
#140 University Park
County, PA
88 B
#141 Baden
County, PA
87 B
#142 Cheswick
County, PA
87 B
#143 East Earl
County, PA
87 B
#144 Philipsburg
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.