City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#7465
Granite City
County, IL
79 B
#7466 Greenfield
County, MA
79 B
#7467 Hartford City
County, IN
79 B
#7468 Havana
County, AR
79 B
#7469 Hawthorne
County, FL
79 B
#7470 Hicksville
County, OH
79 B
#7471 Hodgenville
County, KY
79 B
#7472 Hornbeak
County, TN
79 B
#7473 Ironton
County, OH
79 B
#7474 Irwinton
County, GA
79 B
#7475 Jackson
County, WI
79 B
#7476 Keeseville
County, NY
79 B
#7477 Kennett
County, MO
79 B
#7478 Kyle
County, TX
79 B
#7479 Lafollette
County, TN
79 B
#7480 Leavenworth
County, KS
79 B
#7481 Lincoln
County, IL
79 B
#7482 Linn
County, MO
79 B
#7483 Lipan
County, TX
79 B
#7484 Los Fresnos
County, TX
79 B
#7485 Magee
County, MS
79 B
#7486 Mahanoy City
County, PA
79 B
#7487 Marlow
County, OK
79 B
#7488 Meadow Vista
County, CA
79 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.