City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#4225
Oostburg
County, WI
92 A
#4226 Osceola
County, AR
92 A
#4227 Owens Cross Roads
County, AL
92 A
#4228 Palm Springs
County, CA
92 A
#4229 Paris
County, MO
92 A
#4230 Parker
County, TX
92 A
#4231 Parksville
County, KY
92 A
#4232 Pass Christian
County, MS
92 A
#4233 Pawnee
County, IL
92 A
#4234 Pecatonica
County, IL
92 A
#4235 Pecos
County, TX
92 A
#4236 Peekskill
County, NY
92 A
#4237 Perham
County, MN
92 A
#4238 Perry
County, GA
92 A
#4239 Perry
County, MI
92 A
#4240 Petoskey
County, MI
92 A
#4241 Piedmont
County, AL
92 A
#4242 Pine Island
County, MN
92 A
#4243 Piperton
County, TN
92 A
#4244 Pisgah
County, AL
92 A
#4245 Placentia
County, CA
92 A
#4246 Plains
County, KS
92 A
#4247 Plainview
County, NY
92 A
#4248 Plandome
County, NY
92 A
Frequently Asked Questions
How are city water quality rankings calculated?
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 US cities directly?
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.