Neonatal mortality rate is the number of neonates dying before reaching 28 days of age, per 1,000 live births in a given year.
| 1970 | 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Haiti | 80.6 | 38.8 | 29.7 | 29.3 | 29.4 | 28.2 | 28.0 | 27.8 | 27.4 | 27.0 | 26.6 | 26.1 | 25.6 | 25.2 | 24.7 | 24.2 | 23.7 | 23.3 |
| Yemen | 75.3 | 43.5 | 36.8 | 31.3 | 26.8 | 26.2 | 25.6 | 25.1 | 24.6 | 24.3 | 23.9 | 23.6 | 23.3 | 23.0 | 22.6 | 22.2 | 21.8 | 21.4 |
| Burundi | 49.9 | 39.3 | 36.6 | 33.0 | 28.0 | 27.1 | 26.1 | 25.3 | 24.4 | 23.7 | 23.0 | 22.4 | 21.9 | 21.4 | 20.9 | 20.5 | 20.1 | 19.6 |
| Central African Republic | 50.6 | 43.0 | 39.6 | 36.5 | 35.6 | 35.2 | 35.1 | 35.6 | 34.2 | 34.1 | 34.3 | 33.4 | 35.0 | 32.6 | 33.0 | 36.2 | 30.7 | |
| Côte d'Ivoire | 76.9 | 47.5 | 40.8 | 38.4 | 35.5 | 34.9 | 34.3 | 33.6 | 33.1 | 32.5 | 32.0 | 31.4 | 30.9 | 30.3 | 29.7 | 29.2 | 28.7 | 28.2 |
| Liberia | 91.1 | 60.8 | 48.9 | 39.6 | 34.4 | 34.0 | 33.7 | 33.6 | 33.4 | 33.2 | 33.0 | 32.7 | 32.3 | 31.9 | 31.3 | 30.7 | 30.2 | 29.6 |
| Togo | 55.1 | 43.7 | 36.7 | 32.8 | 29.5 | 28.9 | 28.4 | 27.8 | 27.4 | 26.8 | 26.4 | 25.9 | 25.4 | 24.9 | 24.5 | 24.0 | 23.5 | 23.1 |
| Papua New Guinea | 32.1 | 30.5 | 28.3 | 26.5 | 26.1 | 25.6 | 25.1 | 24.6 | 24.2 | 23.7 | 23.3 | 22.9 | 22.3 | 21.8 | 21.4 | 21.0 | 20.5 | |
| Chad | 51.7 | 44.0 | 39.9 | 38.0 | 37.6 | 37.3 | 36.8 | 36.3 | 35.7 | 35.2 | 34.7 | 34.1 | 33.6 | 33.0 | 32.5 | 31.9 | 31.4 | |
| Comoros | 48.9 | 34.7 | 31.5 | 28.8 | 28.2 | 27.6 | 27.1 | 26.6 | 26.1 | 25.7 | 25.3 | 24.8 | 24.4 | 23.9 | 23.5 | 23.0 | 22.5 | |
| Guinea | 61.9 | 46.1 | 39.2 | 36.1 | 35.7 | 35.2 | 34.7 | 34.2 | 33.7 | 33.3 | 33.0 | 32.6 | 32.2 | 31.8 | 31.3 | 30.9 | 30.3 | |
| Timor-Leste | 57.6 | 38.8 | 31.8 | 27.7 | 27.1 | 26.5 | 25.9 | 25.4 | 25.0 | 24.7 | 24.4 | 24.1 | 23.8 | 23.4 | 23.0 | 22.6 | 22.2 | |
| Afghanistan | 75.5 | 62.2 | 55.5 | 48.2 | 46.8 | 45.5 | 44.2 | 42.9 | 41.8 | 40.8 | 39.7 | 38.7 | 37.8 | 36.9 | 36.0 | 35.2 | 34.3 | |
| Democratic Republic of the Congo | 41.6 | 38.3 | 36.0 | 32.3 | 31.7 | 31.1 | 30.5 | 30.0 | 29.5 | 28.9 | 28.4 | 28.0 | 27.4 | 26.9 | 26.4 | 25.9 | 25.3 | |
| Guinea Bissau | 63.4 | 55.2 | 50.8 | 44.7 | 43.5 | 42.3 | 41.2 | 40.1 | 39.1 | 38.2 | 37.4 | 36.6 | 35.8 | 35.0 | 34.1 | 33.4 | 32.7 | |
| Sao Tome and Principe | 26.2 | 22.2 | 19.1 | 16.2 | 15.2 | 14.1 | 13.1 | 12.0 | 11.1 | 10.2 | 9.4 | 8.7 | 8.2 | 7.8 | 7.4 | 7.1 | 6.8 | |
| Sierra Leone | 52.1 | 48.1 | 44.6 | 39.1 | 38.0 | 37.0 | 36.1 | 35.3 | 34.5 | 33.6 | 32.9 | 32.2 | 31.6 | 30.9 | 30.3 | 29.8 | 29.3 | |
| Somalia | 45.6 | 44.9 | 45.8 | 44.4 | 46.7 | 43.0 | 41.6 | 41.0 | 40.3 | 39.5 | 39.4 | 38.2 | 37.3 | 36.8 | 36.1 | 36.1 | 34.9 | |
| South Sudan | 65.2 | 56.5 | 50.0 | 43.2 | 42.1 | 41.2 | 40.7 | 41.9 | 42.7 | 43.2 | 43.5 | 41.0 | 40.4 | 40.3 | 40.3 | 40.3 | 40.2 | |
| Solomon Islands | 14.9 | 12.8 | 12.1 | 11.0 | 10.8 | 10.6 | 10.5 | 10.3 | 10.1 | 9.9 | 9.8 | 9.5 | 9.3 | 9.1 | 8.8 | 8.6 | 8.3 |