City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10633
Steamboat Springs
County, CO
36 F
#10634 Surf City
County, NC
36 F
#10635 Tarboro
County, NC
36 F
#10636 Toccoa
County, GA
36 F
#10637 Walton
County, WV
36 F
#10638 Weirton
County, WV
36 F
#10639 Aberdeen Township
County, NJ
35 F
#10640 Calhoun Falls
County, SC
35 F
#10641 Canovanas
County, PR
35 F
#10642 Center
County, TX
35 F
#10643 Chillicothe
County, IL
35 F
#10644 East Greenville
County, PA
35 F
#10645 Forked River
County, NJ
35 F
#10646 Homestead
County, FL
35 F
#10647 Kevil
County, KY
35 F
#10648 Kinder
County, LA
35 F
#10649 Lake Butler
County, FL
35 F
#10650 Milledgeville
County, GA
35 F
#10651 Naguabo
County, PR
35 F
#10652 Pottsville
County, PA
35 F
#10653 Rosedale
County, IN
35 F
#10654 Round Lake Park
County, IL
35 F
#10655 Sabinal
County, TX
35 F
#10656 Shelby
County, MS
35 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.