City Water Quality Rankings in Pennsylvania
467 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#193
Rural Valley
County, PA
83 B
#194 State College
County, PA
83 B
#195 Brockway
County, PA
82 B
#196 Catasauqua
County, PA
82 B
#197 Cochranton
County, PA
82 B
#198 Dillsburg
County, PA
82 B
#199 Honesdale
County, PA
82 B
#200 Kittanning
County, PA
82 B
#201 Landisville
County, PA
82 B
#202 Philadelphia
County, PA
82 B
#203 Reading
County, PA
82 B
#204 Sipesville
County, PA
82 B
#205 White Haven
County, PA
82 B
#206 Allison Park
County, PA
81 B
#207 Clinton
County, PA
81 B
#208 Columbia
County, PA
81 B
#209 Irvona
County, PA
81 B
#210 Lake Ariel
County, PA
81 B
#211 Sewickley
County, PA
81 B
#212 Bessemer
County, PA
80 B
#213 Bethlehem
County, PA
80 B
#214 Canton
County, PA
80 B
#215 Chester
County, PA
80 B
#216 Dallastown
County, PA
80 B
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.