City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#7081
Highland Park
County, MI
81 B
#7082 Hudson
County, IL
81 B
#7083 Indian Head Park
County, IL
81 B
#7084 Irvona
County, PA
81 B
#7085 Jackson
County, NJ
81 B
#7086 Kennedy Space Center
County, FL
81 B
#7087 Kingman
County, KS
81 B
#7088 Kingsville
County, TX
81 B
#7089 Laddonia
County, MO
81 B
#7090 Lake Ariel
County, PA
81 B
#7091 Lake Placid
County, FL
81 B
#7092 Lapel
County, IN
81 B
#7093 Laporte
County, IN
81 B
#7094 Lawrenceburg
County, KY
81 B
#7095 Lena
County, IL
81 B
#7096 Linden
County, TN
81 B
#7097 Linden
County, TX
81 B
#7098 Lisbon
County, ME
81 B
#7099 Lowndesboro
County, AL
81 B
#7100 Lynchburg
County, TN
81 B
#7101 Macon
County, MO
81 B
#7102 Marion
County, NC
81 B
#7103 Marshall
County, IL
81 B
#7104 Marshall
County, NC
81 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.