City Water Quality Rankings in Pennsylvania
464 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#361
Orwigsburg
County, PA
52 D
#362 Snow Shoe
County, PA
52 D
#363 King Of Prussia
County, PA
50 D
#364 Macungie
County, PA
50 D
#365 Gettysburg
County, PA
49 D
#366 Mercersburg
County, PA
49 D
#367 Twin Rocks
County, PA
49 D
#368 East Berlin
County, PA
48 D
#369 Mc Connellsburg
County, PA
48 D
#370 Phoenixville
County, PA
48 D
#371 Tunkhannock
County, PA
48 D
#372 Carroll Valley
County, PA
46 D
#373 Lilly
County, PA
46 D
#374 Williamstown
County, PA
46 D
#375 Edinboro
County, PA
45 D
#376 Maple Glen
County, PA
45 D
#377 Norristown
County, PA
45 D
#378 Masontown
County, PA
44 F
#379 New Bloomfield
County, PA
44 F
#380 Sunbury
County, PA
44 F
#381 Ambridge
County, PA
42 F
#382 Howard
County, PA
42 F
#383 Birdsboro
County, PA
41 F
#384 Clinton
County, PA
41 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.