Oslo — UN urban centre
Oslo: 874,991 people. Reference: 2025 annual estimate · World rank #597 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 931; territory: Norway (NOR). 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: 59.9214, 10.7705. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 439,924 | Estimate |
| 1980 | 454,902 | Estimate |
| 1985 | 473,259 | Estimate |
| 1990 | 489,309 | Estimate |
| 1995 | 533,670 | Estimate |
| 2000 | 591,297 | Estimate |
| 2005 | 636,706 | Estimate |
| 2010 | 717,704 | Estimate |
| 2015 | 785,923 | Estimate |
| 2020 | 839,722 | Estimate |
| 2025 | 874,991 | Estimate |
| 2030 | 890,295 | Projection |
| 2035 | 900,822 | Projection |
| 2040 | 908,263 | Projection |
| 2045 | 957,357 | Projection |
| 2050 | 960,481 | 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.