Total mid-year population. Source: World Bank — World Development Indicators. Retrieved 15 Oct 2026.
| Period | Population |
|---|---|
| 2025 | 8.82M |
| 2024 | 8.64M |
| 2023 | 8.46M |
| 2022 | 8.28M |
| 2021 | 8.09M |
| 2020 | 7.91M |
| 2019 | 7.73M |
| 2018 | 7.55M |
| 2017 | 7.38M |
| 2016 | 7.21M |
| 2015 | 7.04M |
| 2014 | 6.88M |
54 countries carry a recent total population figure. Each opens its own page with the history, the source and the API request.
149 of 207 indicators carry a figure for Sierra Leone, grouped by topic.