Mauritania Population Pyramid 2026
Mauritania in 2026
The population of Mauritania in 2026 is estimated at 5,461,319. A decade earlier, in 2016, the population was 4,086,656; it has grown by 33.6% since.
With a median age of 18.6 years, Mauritania has a youth dependency ratio of 76.9 and an old-age dependency ratio of 6.0 per 100 people of working age. The pyramid is expansive: its wide base of young cohorts reflects high fertility and a rapidly growing population.
Data source: United Nations World Population Prospects, 2024 revision (medium variant) — last updated July 2024.
In 2023 women in Mauritania had on average 4.70 children, above the replacement level of 2.1.
Source: World Bank World Development Indicators, latest available year.
A child born there in 2023 could expect to live 68.5 years on average (70.5 years for girls, 66.5 for boys).
Source: World Bank World Development Indicators, latest available year.
189,807 immigrants live in Mauritania, 3.7% of the population.
| Mali | 122,945 |
| Western Sahara | 32,947 |
| Senegal | 20,739 |
| Guinea | 3,650 |
| Algeria | 1,922 |
91,705 people born in Mauritania live in other countries.
| Senegal | 47,547 |
| Mali | 27,160 |
| Gambia | 3,992 |
| Congo | 3,111 |
| Belgium | 3,018 |
Source: United Nations International Migrant Stock 2024.
| Country | Population | Median age | Relative size |
|---|---|---|---|
| Mauritania | 5,461,319 | 18.6 | |
| Liberia | 5,853,949 | 20.0 | |
| Gambia | 2,884,080 | 19.8 | |
| Guinea-Bissau | 2,297,808 | 20.6 | |
| Sierra Leone | 8,996,745 | 21.0 |





