City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#8713
Harrisburg
County, IL
70 C
#8714 Hemingway
County, SC
70 C
#8715 Highlandville
County, MO
70 C
#8716 Honey Brook
County, PA
70 C
#8717 Hospers
County, IA
70 C
#8718 Huntington
County, MA
70 C
#8719 Huron
County, CA
70 C
#8720 Hustonville
County, KY
70 C
#8721 Hyde Park
County, NY
70 C
#8722 Irvington
County, KY
70 C
#8723 Itasca
County, IL
70 C
#8724 Itta Bena
County, MS
70 C
#8725 Jewell
County, IA
70 C
#8726 Juncos
County, PR
70 C
#8727 Lake In The Hills
County, IL
70 C
#8728 Lake Village
County, AR
70 C
#8729 Landing
County, NJ
70 C
#8730 Lares
County, PR
70 C
#8731 Leesburg
County, NJ
70 C
#8732 Lindstrom
County, MN
70 C
#8733 Littlefield
County, TX
70 C
#8734 Logan
County, OH
70 C
#8735 Ludowici
County, GA
70 C
#8736 Mammoth Spring
County, AR
70 C
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.