City Water Quality Rankings in Pennsylvania
467 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#433
Bentleyville
County, PA
13 F
#434 Greentown
County, PA
13 F
#435 Hawthorn
County, PA
13 F
#436 Lock Haven
County, PA
13 F
#437 Meyersdale
County, PA
10 F
#438 Dilliner
County, PA
6 F
#439 Walnutport
County, PA
5 F
#440 Saxton
County, PA
4 F
#441 Altoona
County, PA
0 F
#442 Bradford
County, PA
0 F
#443 Coudersport
County, PA
0 F
#444 Davidsville
County, PA
0 F
#445 Ellsworth
County, PA
0 F
#446 Fredericktown
County, PA
0 F
#447 Freeport
County, PA
0 F
#448 Gallitzin
County, PA
0 F
#449 Gouldsboro
County, PA
0 F
#450 Horsham
County, PA
0 F
#451 Hughesville
County, PA
0 F
#452 Indian Head
County, PA
0 F
#453 Johnsonburg
County, PA
0 F
#454 Kennett Square
County, PA
0 F
#455 Ligonier
County, PA
0 F
#456 Midland
County, PA
0 F
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.