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.