Boulogne-sur-Mer — UN urban centre
Boulogne-sur-Mer: 68,291 people. Reference: 2025 annual estimate · World rank #9,076 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 2541; territory: France (FRA). 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: 50.7209, 1.6047. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 88,067 | Estimate |
| 1980 | 86,045 | Estimate |
| 1985 | 82,505 | Estimate |
| 1990 | 78,591 | Estimate |
| 1995 | 78,753 | Estimate |
| 2000 | 76,760 | Estimate |
| 2005 | 75,263 | Estimate |
| 2010 | 72,972 | Estimate |
| 2015 | 70,616 | Estimate |
| 2020 | 67,514 | Estimate |
| 2025 | 68,291 | Estimate |
| 2030 | 65,510 | Projection |
| 2035 | 64,870 | Projection |
| 2040 | 64,183 | Projection |
| 2045 | 63,607 | Projection |
| 2050 | 62,823 | Projection |
Largest UN urban centres · Fastest-growing urban centres
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