City Water Quality Rankings in Pennsylvania
467 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#49
Auburn
County, PA
94 A
#50 Boyertown
County, PA
94 A
#51 Brodheadsville
County, PA
94 A
#52 Dubois
County, PA
94 A
#53 Grantville
County, PA
94 A
#54 Greencastle
County, PA
94 A
#55 Hellertown
County, PA
94 A
#56 Markleysburg
County, PA
94 A
#57 Meadville
County, PA
94 A
#58 Mechanicsburg
County, PA
94 A
#59 Morgantown
County, PA
94 A
#60 Reinholds
County, PA
94 A
#61 Sharon
County, PA
94 A
#62 Swiftwater
County, PA
94 A
#63 Telford
County, PA
94 A
#64 West Point
County, PA
94 A
#65 Linesville
County, PA
93 A
#66 Natrona Heights
County, PA
93 A
#67 Somerset
County, PA
93 A
#68 South Heights
County, PA
93 A
#69 Adamstown
County, PA
92 A
#70 Allentown
County, PA
92 A
#71 Atglen
County, PA
92 A
#72 Bainbridge
County, PA
92 A
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.