City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#11617
St. Cloud
County, FL
0 F
#11618 Staunton
County, IL
0 F
#11619 Steeleville
County, IL
0 F
#11620 Sterlington
County, LA
0 F
#11621 Stigler
County, OK
0 F
#11622 Stone Harbor
County, NJ
0 F
#11623 Streetman
County, TX
0 F
#11624 Stringtown
County, OK
0 F
#11625 Stroud
County, OK
0 F
#11626 Sturgis
County, KY
0 F
#11627 Sugar Grove
County, VA
0 F
#11628 Sunland Park
County, NM
0 F
#11629 Surf City
County, NJ
0 F
#11630 Surfside Beach
County, TX
0 F
#11631 Surry
County, ME
0 F
#11632 Swiss
County, WV
0 F
#11633 Talcott
County, WV
0 F
#11634 Talihina
County, OK
0 F
#11635 Tallulah
County, LA
0 F
#11636 Tamaqua
County, PA
0 F
#11637 Tatum
County, TX
0 F
#11638 Tecumseh
County, OK
0 F
#11639 Telluride
County, CO
0 F
#11640 Temple
County, OK
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.