Southend-on-Sea — UN urban centre
Southend-on-Sea: 280,158 people. Reference: 2025 annual estimate · World rank #2,075 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 6431; 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: 51.5561, 0.667. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 229,086 | Estimate |
| 1980 | 224,742 | Estimate |
| 1985 | 226,038 | Estimate |
| 1990 | 227,352 | Estimate |
| 1995 | 229,984 | Estimate |
| 2000 | 231,278 | Estimate |
| 2005 | 237,700 | Estimate |
| 2010 | 246,866 | Estimate |
| 2015 | 253,331 | Estimate |
| 2020 | 261,870 | Estimate |
| 2025 | 280,158 | Estimate |
| 2030 | 291,740 | Projection |
| 2035 | 312,570 | Projection |
| 2040 | 353,193 | Projection |
| 2045 | 361,531 | Projection |
| 2050 | 373,216 | 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.