Is the tap water in your home safe to drink? According to The World Counts, half of the world’s hospital beds at any given time are occupied by patients with a water-related disease caused by germs and contaminants in unsafe drinking water. But where in the world is tap water the most dangerous to drink? Explore our interactive table below to view our results and also discover where the safest water can be found based on CDC guidance and a Yale University water quality index.

Country	Water Quality EPI Score	CDC Safety Advice on Tap Water

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EPI score represents the score as given on Yale University’s Environmental Performance Index. The index assigns each country a score that rates the quality of local drinking water based on the number of age-standardised disability-adjusted life-years lost per 100,000 persons (DALY rate) due to exposure to unsafe drinking water. Higher scores indicate safer drinking water. Whether water is safe to drink or not is based on Centers for Disease Control and Prevention (CDC) guidance.