Rio de Janeiro — UN urban centre
Rio de Janeiro: 9,500,336 people. Reference: 2025 annual estimate · World rank #35 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 7935; territory: Brazil (BRA). 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: -22.8458, -43.3667. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 5,880,669 | Estimate |
| 1980 | 6,680,298 | Estimate |
| 1985 | 6,984,412 | Estimate |
| 1990 | 7,269,491 | Estimate |
| 1995 | 7,799,358 | Estimate |
| 2000 | 8,416,754 | Estimate |
| 2005 | 8,711,725 | Estimate |
| 2010 | 8,980,518 | Estimate |
| 2015 | 9,273,974 | Estimate |
| 2020 | 9,417,822 | Estimate |
| 2025 | 9,500,336 | Estimate |
| 2030 | 9,540,571 | Projection |
| 2035 | 9,550,536 | Projection |
| 2040 | 9,509,583 | Projection |
| 2045 | 9,434,617 | Projection |
| 2050 | 9,299,537 | Projection |
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