City Water Quality Rankings in Pennsylvania
464 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#265
Middleburg
County, PA
74 C
#266 Middletown
County, PA
74 C
#267 Monroeville
County, PA
74 C
#268 New Milford
County, PA
74 C
#269 Saegertown
County, PA
74 C
#270 Zelienople
County, PA
74 C
#271 Martinsburg
County, PA
73 C
#272 Bedford
County, PA
72 C
#273 Bryn Mawr
County, PA
72 C
#274 Connellsville
County, PA
72 C
#275 Corry
County, PA
72 C
#276 Mt Holly Springs
County, PA
72 C
#277 Nesquehoning
County, PA
72 C
#278 Vandergrift
County, PA
72 C
#279 York
County, PA
72 C
#280 Youngstown
County, PA
72 C
#281 Industry
County, PA
71 C
#282 Monaca
County, PA
71 C
#283 Moscow
County, PA
71 C
#284 Bendersville
County, PA
70 C
#285 Duquesne
County, PA
70 C
#286 Ephrata
County, PA
70 C
#287 Quarryville
County, PA
70 C
#288 Sewickley
County, PA
70 C
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.