Ibadan — UN urban centre
Ibadan: 3,720,721 people. Reference: 2025 annual estimate · World rank #123 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 2996; territory: Nigeria (NGA). UN source workbook.
Method: Degree of Urbanisation (contiguous 1 km2 cells, density 1,500+ people/km2, total 50,000+). This is a source-defined urban centre, not a municipality or province. No association with a separate administrative entity is inferred from proximity or name.
Source centroid: 7.3787, 3.9225. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 818,658 | Estimate |
| 1980 | 1,022,241 | Estimate |
| 1985 | 1,227,319 | Estimate |
| 1990 | 1,516,718 | Estimate |
| 1995 | 1,792,717 | Estimate |
| 2000 | 2,097,376 | Estimate |
| 2005 | 2,429,656 | Estimate |
| 2010 | 2,808,175 | Estimate |
| 2015 | 3,164,144 | Estimate |
| 2020 | 3,540,970 | Estimate |
| 2025 | 3,720,721 | Estimate |
| 2030 | 3,935,489 | Projection |
| 2035 | 4,114,724 | Projection |
| 2040 | 4,337,703 | Projection |
| 2045 | 4,521,100 | Projection |
| 2050 | 4,663,010 | Projection |
Largest UN urban centres · Fastest-growing urban centres
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