Porto Alegre — UN urban centre
Porto Alegre: 1,755,917 people. Reference: 2025 annual estimate · World rank #281 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 5995; 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: -30.0532, -51.1532. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 797,254 | Estimate |
| 1980 | 1,021,505 | Estimate |
| 1985 | 1,156,225 | Estimate |
| 1990 | 1,353,318 | Estimate |
| 1995 | 1,481,316 | Estimate |
| 2000 | 1,667,894 | Estimate |
| 2005 | 1,697,121 | Estimate |
| 2010 | 1,721,486 | Estimate |
| 2015 | 1,751,690 | Estimate |
| 2020 | 1,758,216 | Estimate |
| 2025 | 1,755,917 | Estimate |
| 2030 | 1,746,278 | Projection |
| 2035 | 1,734,330 | Projection |
| 2040 | 1,714,056 | Projection |
| 2045 | 1,693,849 | Projection |
| 2050 | 1,663,387 | Projection |
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