Trieste — UN urban centre
Trieste: 178,118 people. Reference: 2025 annual estimate · World rank #3,398 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 4542; territory: Italy (ITA). 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: 45.6444, 13.788. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 236,638 | Estimate |
| 1980 | 229,978 | Estimate |
| 1985 | 222,111 | Estimate |
| 1990 | 213,538 | Estimate |
| 1995 | 206,102 | Estimate |
| 2000 | 197,324 | Estimate |
| 2005 | 192,153 | Estimate |
| 2010 | 186,647 | Estimate |
| 2015 | 182,648 | Estimate |
| 2020 | 177,994 | Estimate |
| 2025 | 178,118 | Estimate |
| 2030 | 177,034 | Projection |
| 2035 | 175,798 | Projection |
| 2040 | 174,335 | Projection |
| 2045 | 172,899 | Projection |
| 2050 | 170,662 | Projection |
Largest UN urban centres · Fastest-growing urban centres
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