WaterQ

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.

Explore More Water Quality Data