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
Sterlitamak
, Russia
Chula Vista
, CaliforniaSandusky
, OhioRound Lake Beach
, Illinois
Ratlam
, IndiaSan Rafael
, California
City Ranking
Cities with the most polluted water in the world
Vila Real
, Portugal
Lucerne
, Switzerland
Douglas
, Isle of Man
Porec
, Croatia
Saguenay
, Canada
Sunshine Coast
, Australia
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