Neonatal mortality rate is the number of neonates dying before reaching 28 days of age, per 1,000 live births in a given year.
| 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Armenia | 22.8 | 16.1 | 12.6 | 9.8 | 9.4 | 8.9 | 8.5 | 8.1 | 7.7 | 7.4 | 7.0 | 6.7 | 6.4 | 6.1 | 5.8 | 5.5 | 5.3 |
| Azerbaijan | 30.1 | 34.4 | 27.1 | 21.3 | 20.1 | 18.8 | 17.7 | 16.8 | 16.0 | 15.3 | 14.8 | 14.4 | 14.1 | 13.8 | 13.5 | 13.2 | 12.8 |
| Belarus | 10.0 | 5.2 | 3.2 | 1.8 | 1.7 | 1.7 | 1.7 | 1.6 | 1.6 | 1.5 | 1.4 | 1.2 | 1.1 | 1.0 | 0.9 | 0.8 | 0.8 |
| Kazakhstan | 22.5 | 23.8 | 19.7 | 11.8 | 10.2 | 8.7 | 7.3 | 6.2 | 5.5 | 5.0 | 4.8 | 4.7 | 4.7 | 4.8 | 4.8 | 4.6 | 4.3 |
| Kyrgyz Republic | 24.3 | 20.9 | 19.3 | 16.6 | 15.8 | 15.1 | 14.6 | 14.0 | 13.5 | 12.9 | 12.4 | 11.9 | 11.5 | 11.3 | 11.1 | 11.0 | 10.8 |
| Moldova | 18.4 | 20.2 | 13.8 | 12.5 | 12.3 | 12.1 | 11.8 | 11.7 | 11.5 | 11.3 | 11.2 | 11.1 | 11.0 | 10.9 | 10.9 | 10.8 | 10.8 |
| Russian Federation | 11.0 | 9.0 | 6.4 | 4.5 | 4.7 | 4.7 | 4.6 | 4.4 | 3.9 | 3.5 | 3.2 | 2.9 | 2.6 | 2.3 | 2.0 | 1.8 | 1.7 |
| Tajikistan | 30.8 | 28.2 | 23.0 | 20.0 | 19.2 | 18.3 | 17.5 | 16.8 | 16.3 | 15.8 | 15.4 | 14.9 | 14.4 | 14.0 | 13.6 | 13.1 | 12.6 |
| Turkmenistan | 26.6 | 29.7 | 25.9 | 23.3 | 23.1 | 23.1 | 23.2 | 23.4 | 23.7 | 24.1 | 24.3 | 24.4 | 24.3 | 24.0 | 23.6 | 23.3 | 22.8 |
| Ukraine | 11.8 | 11.0 | 8.6 | 6.9 | 6.6 | 6.3 | 6.0 | 5.8 | 5.6 | 5.4 | 5.3 | 5.1 | 5.0 | 4.9 | 4.9 | 4.8 | 4.7 |
| Uzbekistan | 30.6 | 28.4 | 23.4 | 16.5 | 15.1 | 13.9 | 12.8 | 11.8 | 11.0 | 10.3 | 9.7 | 9.3 | 8.9 | 8.5 | 8.2 | 7.9 | 7.6 |