Orsk — UN urban centre
Orsk: 109,064 people. Reference: 2025 annual estimate · World rank #5,672 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 7321; territory: Russia (RUS). 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: 51.2383, 58.4728. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 138,763 | Estimate |
| 1980 | 144,319 | Estimate |
| 1985 | 149,209 | Estimate |
| 1990 | 152,595 | Estimate |
| 1995 | 142,987 | Estimate |
| 2000 | 138,605 | Estimate |
| 2005 | 133,294 | Estimate |
| 2010 | 124,241 | Estimate |
| 2015 | 116,545 | Estimate |
| 2020 | 112,058 | Estimate |
| 2025 | 109,064 | Estimate |
| 2030 | 107,778 | Projection |
| 2035 | 104,916 | Projection |
| 2040 | 103,823 | Projection |
| 2045 | 102,844 | Projection |
| 2050 | 101,949 | 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.