City Water Quality Rankings in Pennsylvania
467 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#289
Bryn Mawr
County, PA
73 C
#290 East Berlin
County, PA
73 C
#291 Fairchance
County, PA
73 C
#292 Houtzdale
County, PA
73 C
#293 Industry
County, PA
73 C
#294 Leetsdale
County, PA
73 C
#295 Martinsburg
County, PA
73 C
#296 Ambler
County, PA
72 C
#297 Avondale
County, PA
72 C
#298 Bellwood
County, PA
72 C
#299 Corry
County, PA
72 C
#300 Ephrata
County, PA
72 C
#301 Mcadoo
County, PA
72 C
#302 Montgomery
County, PA
72 C
#303 Mt Holly Springs
County, PA
72 C
#304 Vandergrift
County, PA
72 C
#305 Ambridge
County, PA
70 C
#306 Bendersville
County, PA
70 C
#307 Connellsville
County, PA
70 C
#308 Danville
County, PA
70 C
#309 Honey Brook
County, PA
70 C
#310 Middleburg
County, PA
70 C
#311 Oley
County, PA
70 C
#312 Pine Grove
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.