Explore the water quality anywhere in the world
Tap Safe
In addition to reports about water safety, we also provide reports for the water source for most cities, treatment methods, and specific tests that have been passed or failed.
Interactive World Map
Hover over area to reveal water quality
Water Quality Ranking
City Rankings
Cities with the best water in the world
Smithville
, Texas
Nelson BC
, CanadaNorth Vancouver
, Canada
Kaunas
, Lithuania
Greenville
, South Carolina
Bochum
, Germany
City Ranking
Cities with the most polluted water in the world
East Petersburg
, Pennsylvania
Laguna Beach
, Florida
Lake Wisconsin
, Wisconsin
Sauk Centre
, Minnesota
Hancock
, Michigan
Mount Vernon
, Missouri
