Blackburn — UN urban centre
Blackburn: 145,401 people. Reference: 2025 annual estimate · World rank #4,197 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 3494; 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: 53.7367, -2.4799. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 116,015 | Estimate |
| 1980 | 118,606 | Estimate |
| 1985 | 119,144 | Estimate |
| 1990 | 120,249 | Estimate |
| 1995 | 122,242 | Estimate |
| 2000 | 123,661 | Estimate |
| 2005 | 132,961 | Estimate |
| 2010 | 138,023 | Estimate |
| 2015 | 142,340 | Estimate |
| 2020 | 142,859 | Estimate |
| 2025 | 145,401 | Estimate |
| 2030 | 146,974 | Projection |
| 2035 | 147,938 | Projection |
| 2040 | 148,389 | Projection |
| 2045 | 150,470 | Projection |
| 2050 | 150,409 | 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.