Mauritania

In brief

Aged 0–14: 42.4% (2025). World rank 12 of 216; in Africa, 11 of 54. Aged 15–64: 54.4% (2025). World rank 206 of 216; in Africa, 45 of 54. Children per woman: 4.6 (2024). World rank 11 of 216; in Africa, 10 of 54. From 2015 to 2025: population 4M → 5.3M, population growth per year +3% → +2.8%, and living in cities 51.7% → 61.5%.