City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#409
Hillsborough
County, NC
100 A
#410 Hinckley
County, MN
100 A
#411 Hobbs
County, NM
100 A
#412 Hoffman Estates
County, IL
100 A
#413 Hokes Bluff
County, AL
100 A
#414 Hollis
County, NH
100 A
#415 Homedale
County, ID
100 A
#416 Hopewell Jct
County, NY
100 A
#417 Hopkins
County, MI
100 A
#418 Horseshoe Bend
County, AR
100 A
#419 Hot Springs Village
County, AR
100 A
#420 Howard City
County, MI
100 A
#421 Hughes
County, AR
100 A
#422 Hugo
County, MN
100 A
#423 Huntington
County, WV
100 A
#424 Huntington Woods
County, MI
100 A
#425 Huntsville
County, TN
100 A
#426 Huntsville
County, AL
100 A
#427 Hurley
County, NY
100 A
#428 Hutchinson
County, MN
100 A
#429 Ignacio
County, CO
100 A
#430 Ilwaco
County, WA
100 A
#431 Ina
County, IL
100 A
#432 Incline Village
County, NV
100 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.