City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#2017
Crescent City
County, CA
97 A
#2018 Culpeper
County, VA
97 A
#2019 Dahlonega
County, GA
97 A
#2020 Dalton
County, GA
97 A
#2021 Davenport
County, IA
97 A
#2022 De Pere
County, WI
97 A
#2023 Dededo
County, GU
97 A
#2024 Delano
County, CA
97 A
#2025 Delaware
County, OH
97 A
#2026 Dickson
County, TN
97 A
#2027 Downey
County, CA
97 A
#2028 Duluth
County, MN
97 A
#2029 Eaton
County, IN
97 A
#2030 Edisto Island
County, SC
97 A
#2031 Edmonds
County, WA
97 A
#2032 Elberton
County, GA
97 A
#2033 Elgin
County, SC
97 A
#2034 Fairbank
County, IA
97 A
#2035 Farmington
County, MN
97 A
#2036 Forrest City
County, AR
97 A
#2037 Fort Bragg
County, NC
97 A
#2038 Fredonia
County, KS
97 A
#2039 Freeport
County, FL
97 A
#2040 French Lick
County, IN
97 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.