| Country | Year of data | Prevalence (%) |
| Benin | 2017-2018 | 18.3 |
| Burkina Faso | 2010 | 8.8 |
| Burundi | 2016 | 4.8 |
| Cameroon | 2011 | 21.3 |
| Congo | 2011-2012 | 17.8 |
| Ivory Coast | 2011 | 17.4 |
| Democratic Republic of Congo | 2013 | 11.5 |
| Eswatini | 2006-2007 | 25.4 |
| Ethiopia | 2016 | 4.1 |
| Gabon | 2012 | 31.6 |
| Gambia | 2013 | 16.5 |
| Ghana | 2014 | 23.9 |
| Guinea | 2018 | 21.7 |
| Lesotho | 2014 | 21.9 |
| Malawi | 2015-2016 | 11.7 |
| Mali | 2018 | 22.6 |
| Mozambique | 2011 | 11.5 |
| Namibia | 2013 | 15.3 |
| Niger | 2012 | 15.3 |
| Nigeria | 2018 | 20.1 |
| Rwanda | 2014-2015 | 10.3 |
| Sao Tome and Principe | 2008-2009 | 28.6 |
| Senegal | 2010-2011 | 18.8 |
| Sierra Leone | 2013 | 16.7 |
| South Africa | 2016 | 38.7 |
| Tanzania | 2015-2016 | 15.7 |
| Togo | 2013-2014 | 20 |
| Uganda | 2016 | 13.4 |
| Zimbabwe | 2015 | 13.7 |