Proportion of urban population with unimproved water (%)
| 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 |
| Liberia | 11.9 | 10.1 | 8.3 | 7.9 | 7.5 | 7.2 | 6.8 | 6.5 | 6.1 | 5.7 | 5.4 | 5.0 | 4.6 | 4.3 | 3.8 |
| Angola | 2.5 | 5.3 | 10.1 | 11.1 | 12.0 | 13.0 | 13.9 | 14.9 | 15.8 | 16.8 | 17.7 | 17.7 | 17.7 | 17.7 | 17.7 |
| Guinea-Bissau | 20.5 | 17.6 | 14.7 | 14.1 | 13.5 | 13.0 | 12.4 | 11.8 | 11.2 | 10.6 | 10.0 | 9.5 | 8.9 | 8.3 | 8.3 |
| Algeria | 2.0 | 1.6 | 1.2 | 1.1 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Morocco | 4.7 | 3.9 | 3.1 | 2.9 | 2.8 | 2.6 | 2.4 | 2.3 | 2.1 | 1.9 | 1.7 | 1.6 | 1.4 | 1.2 | 1.2 |
| Rwanda | 8.5 | 7.2 | 6.0 | 5.7 | 5.5 | 5.2 | 5.0 | 4.7 | 4.5 | 4.2 | 4.0 | 3.7 | 3.5 | 3.2 | 2.9 |
| Tunisia | 1.3 | 1.1 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| South Africa | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Guinea | 11.7 | 9.4 | 7.1 | 6.6 | 6.2 | 5.7 | 5.3 | 4.8 | 4.3 | 3.9 | 3.4 | 3.0 | 2.5 | 2.0 | 1.6 |
| Zambia | 11.8 | 10.7 | 9.6 | 9.3 | 9.1 | 8.9 | 8.7 | 8.5 | 8.2 | 8.0 | 7.8 | 7.6 | 7.4 | 7.4 | 7.4 |
| Benin | 14.1 | 15.4 | 16.7 | 17.0 | 17.2 | 17.5 | 17.8 | 18.0 | 18.3 | 18.5 | 18.8 | 19.1 | 19.3 | 19.6 | 19.9 |
| Democratic Republic of the Congo | 16.6 | 15.0 | 13.5 | 13.2 | 12.8 | 12.5 | 12.2 | 11.9 | 11.6 | 11.3 | 11.0 | 10.7 | 10.4 | 9.9 | 9.5 |
| Gabon | 2.4 | 2.4 | 2.3 | 2.3 | 2.3 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.1 | 2.1 | 2.1 |
| Mali | 18.2 | 14.2 | 10.2 | 9.4 | 8.5 | 7.7 | 6.9 | 6.1 | 5.3 | 4.5 | 3.7 | 2.9 | 2.1 | 1.3 | 1.0 |
| Cameroon | 9.7 | 8.4 | 7.2 | 6.9 | 6.6 | 6.4 | 6.1 | 5.9 | 5.6 | 5.3 | 5.1 | 4.8 | 4.6 | 4.3 | 4.0 |
| Egypt | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Somalia | 24.2 | 18.5 | 13.5 | 12.5 | 11.5 | 10.6 | 9.6 | 8.6 | 7.6 | 6.6 | 5.6 | 4.6 | 3.6 | 2.4 | 2.4 |
| Sudan | 13.7 | 12.9 | 9.0 | 8.2 | 7.4 | 6.6 | 5.9 | 5.1 | 4.3 | 3.5 | 2.7 | 2.0 | 1.2 | 1.0 | 1.0 |
| Sierra Leone | 11.9 | 11.0 | 10.1 | 9.9 | 9.7 | 9.5 | 9.3 | 9.1 | 8.9 | 8.8 | 8.6 | 8.4 | 8.2 | 8.0 | 7.8 |
| Equatorial Guinea | 24.4 | 21.9 | 19.5 | 19.0 | 18.5 | 18.0 | 18.0 | 18.0 | 18.0 | 18.0 | | | | | |
| Cabo Verde | 6.0 | 5.2 | 3.2 | 2.8 | 2.4 | 2.0 | 1.6 | 1.2 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| South Sudan | | | | 9.2 | 9.5 | 9.7 | 10.0 | 10.3 | 10.6 | 10.9 | 11.2 | 11.3 | 11.3 | 11.3 | 11.3 |
| Congo | 4.8 | 4.3 | 3.5 | 3.4 | 3.2 | 3.1 | 3.0 | 2.8 | 2.7 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | |
| Eswatini | 5.8 | 4.7 | 3.6 | 3.3 | 3.1 | 2.9 | 2.7 | 2.5 | 2.2 | 2.0 | 1.8 | 1.6 | 1.3 | 1.1 | 1.0 |
| Senegal | 8.2 | 7.2 | 6.1 | 5.9 | 5.7 | 5.5 | 5.3 | 5.1 | 4.8 | 4.6 | 4.4 | 4.1 | 3.9 | 3.6 | 3.4 |
| Djibouti | 2.6 | 1.9 | 1.3 | 1.2 | 1.1 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Central African Republic | 10.8 | 12.1 | 13.4 | 13.6 | 13.9 | 14.2 | 14.4 | 14.7 | 14.9 | 15.2 | 15.4 | 15.7 | 16.0 | 16.2 | 16.2 |
| Botswana | 1.0 | 1.0 | 1.0 | 1.1 | 1.2 | 1.2 | 1.3 | 1.4 | 1.5 | 1.6 | 1.7 | 1.7 | 1.8 | 1.9 | 1.9 |
| Niger | 5.0 | 4.3 | 3.6 | 3.4 | 3.2 | 3.1 | 2.9 | 2.8 | 2.6 | 2.4 | 2.3 | 2.1 | 2.0 | 1.8 | 1.7 |
| Lesotho | 7.7 | 6.7 | 5.8 | 5.6 | 5.5 | 5.3 | 5.1 | 4.9 | 4.7 | 4.5 | 4.4 | 4.2 | 4.0 | 3.8 | 3.7 |
| Burundi | 3.9 | 3.4 | 2.8 | 2.7 | 2.6 | 2.5 | 2.4 | 2.3 | 2.2 | 2.1 | 1.8 | 1.3 | 1.3 | 1.3 | 1.3 |
| Nigeria | 12.3 | 9.9 | 7.8 | 7.4 | 6.9 | 6.5 | 6.1 | 5.7 | 5.2 | 4.8 | 4.4 | 4.0 | 3.5 | 3.1 | 2.7 |
| Gambia | 9.9 | 9.2 | 8.5 | 8.4 | 8.3 | 8.1 | 8.0 | 7.9 | 7.7 | 7.6 | 7.4 | 7.3 | 7.2 | 7.0 | 6.9 |
| Zimbabwe | 2.0 | 2.0 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 |
| Côte d'Ivoire | 6.5 | 6.5 | 6.4 | 6.3 | 6.3 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 | 6.0 | 6.0 | 6.0 | 6.1 |
| Mauritania | 5.9 | 4.8 | 3.7 | 3.5 | 3.3 | 3.1 | 2.8 | 2.6 | 2.3 | 2.0 | 1.7 | 1.4 | 1.1 | 1.0 | 1.0 |
| Mauritius | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Chad | 21.7 | 18.5 | 15.2 | 14.5 | 13.9 | 13.2 | 12.6 | 11.9 | 11.3 | 10.6 | 10.0 | 9.3 | 8.7 | 8.0 | 8.0 |
| Sao Tome and Principe | 7.0 | 5.1 | 3.2 | 2.8 | 2.4 | 2.0 | 1.6 | 1.2 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Mozambique | 25.4 | 21.6 | 16.8 | 15.8 | 14.9 | 13.9 | 13.0 | 12.0 | 11.0 | 10.1 | 9.1 | 8.1 | 7.2 | 6.2 | 5.3 |
| Kenya | 5.5 | 5.1 | 4.8 | 4.7 | 4.7 | 4.6 | 4.5 | 4.5 | 4.4 | 4.3 | 4.3 | 4.2 | 4.1 | 4.1 | 4.0 |
| Eritrea | 2.3 | 2.6 | 2.9 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | | | | | | |
| Ghana | 6.1 | 4.7 | 3.2 | 2.9 | 2.7 | 2.4 | 2.1 | 1.8 | 1.5 | 1.2 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Malawi | 5.9 | 5.4 | 4.9 | 4.8 | 4.7 | 4.7 | 4.6 | 4.5 | 4.4 | 4.3 | 4.2 | 4.1 | 4.0 | 3.9 | 3.8 |
| Namibia | 1.3 | 1.2 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Burkina Faso | 9.3 | 8.4 | 7.3 | 7.1 | 6.9 | 6.6 | 6.4 | 6.2 | 6.0 | 5.8 | 5.6 | 5.3 | 5.1 | 4.9 | 4.7 |
| United Republic of Tanzania | 22.2 | 17.4 | 12.5 | 11.6 | 10.6 | 9.6 | 8.7 | 7.7 | 6.7 | 5.7 | 4.8 | 3.8 | 2.8 | 1.9 | 1.0 |
| Ethiopia | 6.1 | 5.1 | 4.0 | 3.8 | 3.5 | 3.3 | 3.1 | 2.9 | 2.7 | 2.5 | 2.2 | 2.0 | 1.8 | 1.6 | 1.4 |
| Madagascar | 12.5 | 12.3 | 12.1 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.8 | 11.8 | 11.8 | 11.8 |
| Uganda | 7.2 | 7.0 | 6.7 | 6.6 | 6.6 | 6.5 | 6.5 | 6.4 | 6.3 | 6.3 | 6.2 | 6.2 | 6.1 | 6.1 | 6.0 |
| Togo | 13.5 | 12.6 | 11.8 | 11.6 | 11.4 | 11.3 | 11.1 | 10.9 | 10.8 | 10.6 | 10.4 | 10.2 | 10.1 | 9.9 | 9.7 |
| Comoros | 8.3 | 6.3 | 4.3 | 3.9 | 3.5 | 3.1 | 2.7 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | | | |