Nigeria Population Pyramid 2001
Nigeria in 2001
In 2001, Nigeria had a total population of 129,862,594 people. A decade earlier, in 1991, the population was 99,720,162; it has grown by 30.2% since.
With a median age of 17.9 years, Nigeria had a youth dependency ratio of 82.2 and an old-age dependency ratio of 5.7 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 Nigeria had on average 4.48 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 54.5 years on average (54.7 years for girls, 54.2 for boys).
Source: World Bank World Development Indicators, latest available year.
1,262,314 immigrants live in Nigeria, 0.5% of the population.
| Benin | 404,468 |
| Ghana | 255,531 |
| Mali | 184,965 |
| Togo | 169,717 |
| Niger | 129,540 |
2,094,162 people born in Nigeria live in other countries.
| United States of America | 565,053 |
| United Kingdom | 324,007 |
| Niger | 199,722 |
| Cameroon | 188,266 |
| Italy | 112,792 |
Source: United Nations International Migrant Stock 2024.
| Country | Population | Median age | Relative size |
|---|---|---|---|
| Nigeria | 129,862,595 | 17.9 | |
| Ghana | 20,167,069 | 18.6 | |
| Côte d'Ivoire | 18,178,913 | 16.8 | |
| Burkina Faso | 12,295,001 | 16.6 | |
| Niger | 11,920,648 | 16.2 |





