City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#6289
Shady Grove
County, PA
85 B
#6290 Shortsville
County, NY
85 B
#6291 Slaughter
County, LA
85 B
#6292 Slippery Rock
County, PA
85 B
#6293 South Haven
County, MI
85 B
#6294 Sparks
County, GA
85 B
#6295 Spencer
County, IA
85 B
#6296 Springfield
County, SD
85 B
#6297 St Thomas
County, PA
85 B
#6298 Stanley
County, NC
85 B
#6299 Thayer
County, MO
85 B
#6300 Tillamook
County, OR
85 B
#6301 Timberville
County, VA
85 B
#6302 Tinton Falls
County, NJ
85 B
#6303 Toomsuba
County, MS
85 B
#6304 Troy
County, NY
85 B
#6305 Tuskegee
County, AL
85 B
#6306 Tyler
County, TX
85 B
#6307 Verona
County, WI
85 B
#6308 Waleska
County, GA
85 B
#6309 Walnut Ridge
County, AR
85 B
#6310 Walton
County, IN
85 B
#6311 Waskom
County, TX
85 B
#6312 Water Valley
County, MS
85 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.