City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#3073
Allegan
County, MI
94 A
#3074 Alma
County, NE
94 A
#3075 Almont
County, MI
94 A
#3076 Alpine
County, AZ
94 A
#3077 Altadena
County, CA
94 A
#3078 Andover
County, NJ
94 A
#3079 Apple Valley
County, MN
94 A
#3080 Arcadia
County, IN
94 A
#3081 Archer City
County, TX
94 A
#3082 Argos
County, IN
94 A
#3083 Arley
County, AL
94 A
#3084 Arlington
County, NE
94 A
#3085 Arlington
County, VT
94 A
#3086 Ash Grove
County, MO
94 A
#3087 Ashley
County, OH
94 A
#3088 Athens
County, WV
94 A
#3089 Atwater
County, CA
94 A
#3090 Auburn
County, PA
94 A
#3091 Avalon
County, CA
94 A
#3092 Babylon
County, NY
94 A
#3093 Baconton
County, GA
94 A
#3094 Bal Harbour
County, FL
94 A
#3095 Bamberg
County, SC
94 A
#3096 Bangor
County, ME
94 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.