Sierra Leone's population is estimated by the United Nations to be 8.8 million in 2021.
The population of Sierra Leone grew at 2.3% in the last year and is ranked the 32th most populated country in Africa, ahead of Libya.
Sierra Leone last conducted a national census in 2015 and 90.4% of births in Sierra Leone are recorded. Read more from the World Econcomics Population Data Quality Ratings and see how Sierra Leone compares to other countries around the world and in the Africa region.
Sierra Leone's data is highlighted in the table below, use the filter and sort order options to allow easy comparison with other countries.
Data source: United Nations, Washington D.C., Eurostat, Luxembourg and World Economics Research, London