City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#11113
West Caldwell
County, NJ
1 F
#11114 Aibonito
County, PR
0 F
#11115 Akron
County, IA
0 F
#11116 Alanta
County, LA
0 F
#11117 Alto
County, NM
0 F
#11118 Altoona
County, IA
0 F
#11119 Altoona
County, PA
0 F
#11120 Altus
County, OK
0 F
#11121 Alum Creek
County, WV
0 F
#11122 Amber
County, OK
0 F
#11123 Anadarko
County, OK
0 F
#11124 Anchor Point
County, AK
0 F
#11125 Ancora
County, NJ
0 F
#11126 Andrews
County, TX
0 F
#11127 Angel Fire
County, NM
0 F
#11128 Anna
County, IL
0 F
#11129 Antlers
County, OK
0 F
#11130 Apache
County, OK
0 F
#11131 Apache Junction
County, AZ
0 F
#11132 Archie
County, MO
0 F
#11133 Arlington
County, IN
0 F
#11134 Arp
County, TX
0 F
#11135 Asherton
County, TX
0 F
#11136 Ashland
County, WI
0 F
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.