WaterQ

City Water Quality Rankings

11,696 cities ranked by drinking water quality.

Popular city water quality comparisons

Trending Cities

#4057
Hanover
County, NH
92 A
#4058
Harbor Beach
County, MI
92 A
#4059
Hardin
County, TX
92 A
#4060
Harker Heights
County, TX
92 A
#4061
Hartford
County, SD
92 A
#4062
Hartman
County, AR
92 A
#4063
Hayfork
County, CA
92 A
#4064
Healdsburg
County, CA
92 A
#4065
Henderson
County, NE
92 A
#4066
Hettinger
County, ND
92 A
#4067
Hickory
County, KY
92 A
#4068
Hickory Hills
County, IL
92 A
#4069
Highland Beach
County, FL
92 A
#4070
Highland Village
County, TX
92 A
#4071
Hinesville
County, GA
92 A
#4072
Holden Beach
County, NC
92 A
#4073
Holdrege
County, NE
92 A
#4074
Holladay
County, TN
92 A
#4075
Holly Hill
County, SC
92 A
#4076
Huffman
County, TX
92 A
#4077
Hugoton
County, KS
92 A
#4078
Humble
County, TX
92 A
#4079
Humboldt
County, IA
92 A
#4080
Hustisford
County, WI
92 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.

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