Sofia — UN urban centre
Sofia: 1,067,136 people. Reference: 2025 annual estimate · World rank #478 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 100; territory: Bulgaria (BGR). 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: 42.6853, 23.3253. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 806,771 | Estimate |
| 1980 | 886,930 | Estimate |
| 1985 | 993,720 | Estimate |
| 1990 | 998,010 | Estimate |
| 1995 | 953,830 | Estimate |
| 2000 | 918,660 | Estimate |
| 2005 | 937,736 | Estimate |
| 2010 | 1,003,504 | Estimate |
| 2015 | 1,037,411 | Estimate |
| 2020 | 1,079,292 | Estimate |
| 2025 | 1,067,136 | Estimate |
| 2030 | 1,049,065 | Projection |
| 2035 | 1,030,357 | Projection |
| 2040 | 1,011,607 | Projection |
| 2045 | 990,072 | Projection |
| 2050 | 970,901 | Projection |
Largest UN urban centres · Fastest-growing urban centres
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