City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#3553
Sharon
County, PA
94 A
#3554 Shelburne
County, VT
94 A
#3555 Shelby
County, MI
94 A
#3556 Shelby
County, OH
94 A
#3557 Shelbyville
County, KY
94 A
#3558 Sherburn
County, MN
94 A
#3559 Shorewood
County, WI
94 A
#3560 Short Mills
County, NJ
94 A
#3561 Sidney
County, NE
94 A
#3562 Siletz
County, OR
94 A
#3563 Silsbee
County, TX
94 A
#3564 Silver Bay
County, MN
94 A
#3565 Sinton
County, TX
94 A
#3566 Sodus
County, NY
94 A
#3567 Somersworth
County, NH
94 A
#3568 South Berwick
County, ME
94 A
#3569 South Burlington
County, VT
94 A
#3570 South Dennis
County, MA
94 A
#3571 South Easton
County, MA
94 A
#3572 South Jordan
County, UT
94 A
#3573 South Milwaukee
County, WI
94 A
#3574 South Pasadena
County, CA
94 A
#3575 Southaven
County, MS
94 A
#3576 Southside
County, AL
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.