Lanzhou — UN urban centre
Lanzhou: 2,272,104 people. Reference: 2025 annual estimate · World rank #218 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 4559; territory: China (CHN). 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: 36.0656, 103.8047. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 1,044,871 | Estimate |
| 1980 | 1,119,000 | Estimate |
| 1985 | 1,197,027 | Estimate |
| 1990 | 1,291,280 | Estimate |
| 1995 | 1,507,705 | Estimate |
| 2000 | 1,746,456 | Estimate |
| 2005 | 1,877,018 | Estimate |
| 2010 | 2,007,725 | Estimate |
| 2015 | 2,135,362 | Estimate |
| 2020 | 2,295,634 | Estimate |
| 2025 | 2,272,104 | Estimate |
| 2030 | 2,235,847 | Projection |
| 2035 | 2,204,337 | Projection |
| 2040 | 2,164,910 | Projection |
| 2045 | 2,130,368 | Projection |
| 2050 | 2,080,947 | Projection |
Largest UN urban centres · Fastest-growing urban centres
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