Terrestrial protected areas are those officially documented by national authorities.
| 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Armenia | 23.3 | 23.1 | 23.1 | 23.1 | 23.1 | 23.1 | 24.3 | 24.3 | 24.3 | 24.7 | 24.7 | 38.9 |
| Russian Federation | 11.4 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 11.5 | 11.5 | 11.5 | 11.4 | 11.5 |
| Kazakhstan | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 10.0 | 10.0 | 10.0 | 10.0 | 10.1 |
| Belarus | 8.3 | 8.6 | 8.8 | 9.5 | 9.4 | 9.4 | 9.4 | 9.4 | 13.8 | 13.8 | 13.8 | 9.4 |
| Kyrgyz Republic | 6.5 | 6.5 | 6.5 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.8 |