Under-five mortality rate is the probability per 1,000 that a newborn baby will die before reaching age five, if subject to current age-specific mortality rates.
| 1970 | 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Botswana | 123.7 | 50.1 | 81.1 | 70.3 | 55.8 | 56.8 | 53.4 | 51.0 | 51.1 | 49.8 | 49.0 | 46.5 | 45.9 | 45.0 | 43.9 | 42.0 | 40.7 | 39.6 |
| Lesotho | 176.8 | 84.7 | 109.4 | 115.6 | 90.1 | 85.9 | 82.6 | 80.2 | 78.2 | 75.1 | 71.8 | 71.2 | 69.1 | 68.7 | 66.8 | 64.4 | 61.5 | 58.9 |
| Namibia | 96.5 | 73.9 | 77.9 | 70.5 | 50.8 | 51.6 | 55.1 | 54.0 | 53.1 | 55.0 | 54.2 | 51.9 | 50.1 | 47.8 | 45.7 | 43.8 | 42.0 | 40.7 |
| South Africa | 58.2 | 71.1 | 80.3 | 50.0 | 45.0 | 42.5 | 41.0 | 39.6 | 38.2 | 36.8 | 35.8 | 34.9 | 34.5 | 34.1 | 34.1 | 34.4 | 34.7 | |
| इस्वातिनी | 165.0 | 67.5 | 109.1 | 115.5 | 81.8 | 68.1 | 63.8 | 61.6 | 61.7 | 58.6 | 55.3 | 54.3 | 51.0 | 51.6 | 49.8 | 47.6 | 46.2 | 45.0 |