London — UN urban centre
London: 10,416,420 people. Reference: 2025 annual estimate · World rank #33 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 5938; territory: United Kingdom (GBR). 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: 51.5089, -0.127. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 7,369,842 | Estimate |
| 1980 | 7,026,099 | Estimate |
| 1985 | 7,030,290 | Estimate |
| 1990 | 7,140,652 | Estimate |
| 1995 | 7,388,279 | Estimate |
| 2000 | 7,654,553 | Estimate |
| 2005 | 7,947,720 | Estimate |
| 2010 | 8,597,262 | Estimate |
| 2015 | 9,274,623 | Estimate |
| 2020 | 9,991,400 | Estimate |
| 2025 | 10,416,420 | Estimate |
| 2030 | 10,766,831 | Projection |
| 2035 | 11,048,048 | Projection |
| 2040 | 11,387,886 | Projection |
| 2045 | 11,670,188 | Projection |
| 2050 | 11,868,905 | 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.