Ulaanbaatar — UN urban centre
Ulaanbaatar: 1,596,556 people. Reference: 2025 annual estimate · World rank #308 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 320; territory: Mongolia (MNG). 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: 47.9266, 106.8747. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 236,032 | Estimate |
| 1980 | 285,462 | Estimate |
| 1985 | 353,429 | Estimate |
| 1990 | 430,045 | Estimate |
| 1995 | 509,618 | Estimate |
| 2000 | 608,760 | Estimate |
| 2005 | 758,484 | Estimate |
| 2010 | 961,192 | Estimate |
| 2015 | 1,174,093 | Estimate |
| 2020 | 1,463,087 | Estimate |
| 2025 | 1,596,556 | Estimate |
| 2030 | 1,706,639 | Projection |
| 2035 | 1,794,520 | Projection |
| 2040 | 1,899,723 | Projection |
| 2045 | 1,985,642 | Projection |
| 2050 | 2,068,478 | Projection |
Largest UN urban centres · Fastest-growing urban centres
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