The sanitation and drinking water score measures how well countries protect human health from environmental risks on two indicators: unsafe drinking water and unsafe sanitation.
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Countries with the highest sanitation and drinking water scores worldwide 2022
In 2022, ** out of the top 20 countries with the highest sanitation and drinking water indexes worldwide were European, six of which had an EPI scored of 100. Japan was the only non-European nation to rank among the ** countries with the highest sanitation and drinking water scores in 2022.
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Yale University. (June 6, 2022). Ranking of countries with the highest sanitation and drinking water score based on the Environmental Performance Index (EPI) in 2022 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 27, 2026, from /statistics/1467036/countries-with-the-highest-sanitation-drinking-water-score/
Yale University. "Ranking of countries with the highest sanitation and drinking water score based on the Environmental Performance Index (EPI) in 2022." Chart. June 6, 2022. ÌÇÐÄÆƽâ°æ. Accessed July 27, 2026. /statistics/1467036/countries-with-the-highest-sanitation-drinking-water-score/
Yale University. (2022). Ranking of countries with the highest sanitation and drinking water score based on the Environmental Performance Index (EPI) in 2022. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 27, 2026. /statistics/1467036/countries-with-the-highest-sanitation-drinking-water-score/
Yale University. "Ranking of Countries with The Highest Sanitation and Drinking Water Score Based on The Environmental Performance Index (Epi) in 2022." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 6 Jun 2022, /statistics/1467036/countries-with-the-highest-sanitation-drinking-water-score/
Yale University, Ranking of countries with the highest sanitation and drinking water score based on the Environmental Performance Index (EPI) in 2022 ÌÇÐÄÆƽâ°æ, /statistics/1467036/countries-with-the-highest-sanitation-drinking-water-score/ (last visited July 27, 2026)
Ranking of countries with the highest sanitation and drinking water score based on the Environmental Performance Index (EPI) in 2022 [Graph], Yale University, June 6, 2022. [Online]. Available: /statistics/1467036/countries-with-the-highest-sanitation-drinking-water-score/
