City Water Quality Rankings in Pennsylvania
464 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#217
Royersford
County, PA
78 B
#218 Topton
County, PA
78 B
#219 Tower City
County, PA
78 B
#220 Whitehall
County, PA
78 B
#221 Wilkinsburg
County, PA
78 B
#222 Windsor
County, PA
78 B
#223 Wrightsville
County, PA
78 B
#224 Alburtis
County, PA
77 B
#225 Bernville
County, PA
77 B
#226 Blandon
County, PA
77 B
#227 Central City
County, PA
77 B
#228 Denver
County, PA
77 B
#229 Duncansville
County, PA
77 B
#230 Erie
County, PA
77 B
#231 Fairview
County, PA
77 B
#232 Grove City
County, PA
77 B
#233 Hanover
County, PA
77 B
#234 Lancaster
County, PA
77 B
#235 Leesport
County, PA
77 B
#236 West Grove
County, PA
77 B
#237 Worthington
County, PA
77 B
#238 Derry
County, PA
76 B
#239 Duncannon
County, PA
76 B
#240 Fayetteville
County, PA
76 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.