Share of the population aged 0 to 14 years. Source: World Bank — World Development Indicators. Retrieved 15 Oct 2026.
| Period | Population Under 15 |
|---|---|
| 2025 | 37.7% |
| 2024 | 38.1% |
| 2023 | 38.5% |
| 2022 | 39% |
| 2021 | 39.4% |
| 2020 | 39.8% |
| 2019 | 40.2% |
| 2018 | 40.6% |
| 2017 | 41% |
| 2016 | 41.4% |
| 2015 | 41.8% |
| 2014 | 42.2% |
54 countries carry a recent share of the population aged 0-14 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.