City Water Quality Rankings in Pennsylvania
467 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#409
Pottsville
County, PA
35 F
#410 Flinton
County, PA
34 F
#411 Williamstown
County, PA
34 F
#412 Ebensburg
County, PA
32 F
#413 Emporium
County, PA
32 F
#414 Dallas
County, PA
31 F
#415 Elysburg
County, PA
30 F
#416 Colver
County, PA
29 F
#417 Newtown
County, PA
29 F
#418 Johnstown
County, PA
28 F
#419 Milesburg
County, PA
28 F
#420 Mineral Point
County, PA
28 F
#421 Mingoville
County, PA
26 F
#422 Smethport
County, PA
26 F
#423 Lords Valley
County, PA
24 F
#424 Galeton
County, PA
23 F
#425 Blairsville
County, PA
22 F
#426 King Of Prussia
County, PA
22 F
#427 Lykens
County, PA
22 F
#428 Mount Union
County, PA
22 F
#429 Mansfield
County, PA
21 F
#430 Roulette
County, PA
21 F
#431 Blossburg
County, PA
14 F
#432 Morrisville
County, PA
14 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.