| Current Rank | Country | Value | Latest Reading | Previous Rank | Previous Value |
|---|---|---|---|---|---|
| 1 | Israel | 99.2 | 2019 | 1 | 99.2 |
| 2 | Spain | 98.7 | 2020 | 2 | 98.7 |
| 3 | Czech Republic | 97.7 | 2020 | 3 | 97.7 |
| 4 | Luxembourg | 96.5 | 2020 | 4 | 96.5 |
| 5 | Portugal | 92.5 | 2020 | 5 | 92.3 |
| 6 ↓ | Turkmenistan | 92.3 | 2020 | 5 | 92.3 |
| 7 | Ukraine | 89.8 | 2020 | 7 | 89.5 |
| 8 | Hungary | 89 | 2019 | 8 | 89 |
| 9 | Iran | 87.2 | 2020 | 9 | 86.6 |
| 10 | Costa Rica | 81.1 | 2020 | 10 | 81.1 |
| 11 | Azerbaijan | 78.1 | 2020 | 11 | 76.9 |
| 12 ↑ | Brazil | 71.8 | 2020 | 13 | 70 |
| 13 ↓ | Palau | 70.3 | 2020 | 12 | 70.3 |
| 14 | Algeria | 68.7 | 2020 | 14 | 68.5 |
| 14 ↑ | Tunisia | 68.7 | 2020 | 16 | 67.6 |
| 16 ↓ | Croatia | 68.5 | 2007 | 14 | 68.5 |
| 17 | Romania | 66.7 | 2020 | 17 | 66.7 |
| 18 | Serbia | 66.6 | 2020 | 18 | 66.6 |
| 19 | Macedonia | 65.9 | 2020 | 19 | 65.9 |
| 20 | Bangladesh | 62.1 | 2020 | 20 | 61.9 |
| 21 | Morocco | 61.2 | 2020 | 21 | 57.7 |
| 22 ↑ | Kyrgyzstan | 57.4 | 2020 | 23 | 56.8 |
| 23 ↓ | India | 56.1 | 2020 | 22 | 57.1 |
| 24 | Ecuador | 52.8 | 2020 | 24 | 51.8 |
| 25 ↑ | Burma (Myanmar) | 52.1 | 2020 | 26 | 50.6 |
| 26 ↓ | Paraguay | 50.7 | 2020 | 25 | 50.7 |
| 27 | North Korea | 48.8 | 2020 | 27 | 48.8 |
| 28 | Iraq | 47.6 | 2020 | 28 | 45.8 |
| 29 | Guatemala | 45.5 | 2020 | 29 | 44.9 |
| 30 | Suriname | 40.8 | 2020 | 30 | 40.3 |
| 31 | Georgia | 40.3 | 2020 | 31 | 40.2 |
| 32 | Colombia | 40.2 | 2020 | 32 | 39.9 |
| 33 | Nicaragua | 38.5 | 2020 | 33 | 38.5 |
| 34 | Philippines | 34.5 | 2020 | 34 | 34.3 |
| 35 | Pakistan | 33.3 | 2020 | 35 | 33.1 |
| 36 | Uzbekistan | 31.1 | 2020 | 36 | 31.1 |
| 37 | Bhutan | 27.6 | 2020 | 37 | 27.6 |
| 38 | Sao Tome and Principe | 24.7 | 2020 | 38 | 24.4 |
| 39 | Afghanistan | 24.5 | 2020 | 39 | 23.7 |
| 40 | Tonga | 23.1 | 2020 | 40 | 23.1 |
| 41 | Peru | 22.1 | 2020 | 41 | 21.3 |
| 42 | Republic of the Congo | 19.1 | 2020 | 42 | 19.1 |
| 43 | Honduras | 18.7 | 2020 | 43 | 18.6 |
| 44 | Cambodia | 18.4 | 2020 | 44 | 18 |
| 45 ↑ | Nigeria | 17.7 | 2020 | 46 | 17.3 |
| 46 ↑ | Ghana | 16.1 | 2020 | 48 | 13.9 |
| 47 ↓ | Nepal | 15.7 | 2020 | 45 | 17.4 |
| 48 ↓ | Ivory Coast | 14.6 | 2020 | 47 | 14.7 |
| 49 | Zimbabwe | 12.9 | 2020 | 49 | 13.1 |
| 50 | Laos | 12.4 | 2020 | 50 | 12.4 |
| 51 ↑ | Mongolia | 11.4 | 2020 | 52 | 10 |
| 52 ↓ | Guinea-Bissau | 10.8 | 2019 | 51 | 10.4 |
| 53 | Madagascar | 9.5 | 2020 | 53 | 9.3 |
| 54 | Sierra Leone | 9.2 | 2020 | 54 | 8.7 |
| 55 | Lesotho | 8.9 | 2020 | 55 | 8.1 |
| 56 | Uganda | 8 | 2020 | 56 | 7.4 |
| 57 ↓ | Gambia | 7.6 | 2020 | 56 | 7.4 |
| 58 | Togo | 6.7 | 2020 | 58 | 6.6 |
| 58 ↑ | Kiribati | 6.7 | 2020 | 59 | 6.5 |
| 60 | Ethiopia | 5.2 | 2020 | 60 | 4.8 |
| 61 | Rwanda | 5 | 2020 | 61 | 4.7 |
| 62 | Central African Republic | 2.3 | 2019 | 62 | 2.4 |
| 63 | Chad | 2.1 | 2018 | 63 | 2.2 |
| 64 | Democratic Republic of the Congo | 1 | 2020 | 64 | 1 |
The percentage of people using drinking water from an improved source that is accessible on premises, available when needed and free from faecal and priority chemical contamination. Improved water sources include piped water, boreholes or tubewells, protected dug wells, protected springs, and packaged or delivered water.
