Porto Velho — UN urban centre
Porto Velho: 422,943 people. Reference: 2025 annual estimate · World rank #1,322 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 506; 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: -8.7675, -63.8674. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1980 | 57,557 | Estimate |
| 1985 | 166,902 | Estimate |
| 1990 | 236,472 | Estimate |
| 1995 | 265,840 | Estimate |
| 2000 | 279,195 | Estimate |
| 2005 | 317,936 | Estimate |
| 2010 | 358,130 | Estimate |
| 2015 | 390,023 | Estimate |
| 2020 | 407,779 | Estimate |
| 2025 | 422,943 | Estimate |
| 2030 | 441,228 | Projection |
| 2035 | 452,085 | Projection |
| 2040 | 460,845 | Projection |
| 2045 | 467,921 | Projection |
| 2050 | 470,737 | Projection |
Largest UN urban centres · Fastest-growing urban centres
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This page is a structured reference entry. Its sources, geographic definition and reference dates determine what the figures mean; it is not independent reporting about the causes of change. Read the accompanying explanation before comparing different places or vintages.