City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#505
Hollis
County, NH
100 A
#506 Homedale
County, ID
100 A
#507 Hopewell Jct
County, NY
100 A
#508 Hopkins
County, MI
100 A
#509 Horseshoe Bend
County, AR
100 A
#510 Hot Springs Village
County, AR
100 A
#511 Howard City
County, MI
100 A
#512 Hubbard
County, OH
100 A
#513 Hubertus
County, WI
100 A
#514 Hudson
County, NH
100 A
#515 Hughes
County, AR
100 A
#516 Hugo
County, MN
100 A
#517 Huntington
County, UT
100 A
#518 Huntington
County, WV
100 A
#519 Huntington Woods
County, MI
100 A
#520 Huntsville
County, AL
100 A
#521 Huntsville
County, TN
100 A
#522 Hurley
County, NY
100 A
#523 Hutchinson
County, MN
100 A
#524 Hyde Park
County, VT
100 A
#525 Ignacio
County, CO
100 A
#526 Ilwaco
County, WA
100 A
#527 Incline Village
County, NV
100 A
#528 Inman
County, SC
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.