City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#6265
Newton
County, IA
85 B
#6266 Niles
County, IL
85 B
#6267 North Salt Lake
County, UT
85 B
#6268 Olympia Fields
County, IL
85 B
#6269 Otisville
County, NY
85 B
#6270 Ozark
County, AR
85 B
#6271 Pace
County, FL
85 B
#6272 Pine City
County, MN
85 B
#6273 Pinetops
County, NC
85 B
#6274 Pleasanton
County, TX
85 B
#6275 Pollok
County, TX
85 B
#6276 Ravenna
County, OH
85 B
#6277 Raymore
County, MO
85 B
#6278 Rayne
County, LA
85 B
#6279 Red Lion
County, PA
85 B
#6280 Richmond
County, VT
85 B
#6281 Riverdale
County, IL
85 B
#6282 Riverdale
County, NJ
85 B
#6283 Robinson
County, IL
85 B
#6284 Ronan
County, MT
85 B
#6285 Roseville
County, MI
85 B
#6286 Rushford
County, MN
85 B
#6287 Sangerville
County, ME
85 B
#6288 Santa Fe
County, NM
85 B
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.