City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#5569
Sedgwick
County, KS
88 B
#5570 Seeley
County, CA
88 B
#5571 Severance
County, CO
88 B
#5572 Shelbyville
County, MI
88 B
#5573 Sheridan
County, AR
88 B
#5574 Shoreham
County, VT
88 B
#5575 Sisseton
County, SD
88 B
#5576 Six Mile
County, SC
88 B
#5577 Slaton
County, TX
88 B
#5578 Smackover
County, AR
88 B
#5579 Smithfield
County, NC
88 B
#5580 Sneads
County, FL
88 B
#5581 Soddy Daisy
County, TN
88 B
#5582 Southpoint
County, OH
88 B
#5583 Spencer
County, WI
88 B
#5584 Springfield
County, KY
88 B
#5585 Springfield
County, OR
88 B
#5586 St Peters
County, MO
88 B
#5587 St. Anthony
County, IN
88 B
#5588 Starbuck
County, MN
88 B
#5589 Stewartstown
County, PA
88 B
#5590 Stillwater
County, MN
88 B
#5591 Stonewall
County, LA
88 B
#5592 Strasburg
County, OH
88 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.