City Water Quality Rankings in Pennsylvania
464 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#1
Berwick
County, PA
100 A
#2 Easton
County, PA
100 A
#3 Farmington
County, PA
100 A
#4 Hatfield
County, PA
100 A
#5 Jefferson Hills
County, PA
100 A
#6 Seven Fields
County, PA
100 A
#7 Shoemakersville
County, PA
100 A
#8 Wexford
County, PA
100 A
#9 Bushkill
County, PA
98 A
#10 Coopersburg
County, PA
98 A
#11 Elrama
County, PA
98 A
#12 Everett
County, PA
98 A
#13 Gap
County, PA
98 A
#14 Gibsonia
County, PA
98 A
#15 Jim Thorpe
County, PA
98 A
#16 Mc Connellstown
County, PA
98 A
#17 Port Matilda
County, PA
98 A
#18 Wernersville
County, PA
98 A
#19 Yardley
County, PA
98 A
#20 Brodheadsville
County, PA
97 A
#21 Hummelstown
County, PA
97 A
#22 Seneca
County, PA
97 A
#23 Vanport
County, PA
97 A
#24 Boswell
County, PA
96 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.