City Water Quality Rankings in Pennsylvania
467 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#265
Erie
County, PA
76 B
#266 Fairless Hills
County, PA
76 B
#267 Harwick
County, PA
76 B
#268 Titusville
County, PA
76 B
#269 Warrington
County, PA
76 B
#270 Wawa
County, PA
76 B
#271 Wellsboro
County, PA
76 B
#272 Wyalusing
County, PA
76 B
#273 Fairview
County, PA
75 B
#274 New Holland
County, PA
75 B
#275 North East
County, PA
75 B
#276 Shamokin Dam
County, PA
75 B
#277 Uniontown
County, PA
75 B
#278 Ashland
County, PA
74 C
#279 Clearfield
County, PA
74 C
#280 Cresson
County, PA
74 C
#281 Dunbar
County, PA
74 C
#282 East Stroudsburg
County, PA
74 C
#283 Lancaster
County, PA
74 C
#284 Monroeville
County, PA
74 C
#285 Rimersburg
County, PA
74 C
#286 Sykesville
County, PA
74 C
#287 Valley View
County, PA
74 C
#288 Zelienople
County, PA
74 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.