Heidelberg — UN urban centre
Heidelberg: 183,113 people. Reference: 2025 annual estimate · World rank #3,294 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 3756; territory: Germany (DEU). 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: 49.3908, 8.672. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 147,304 | Estimate |
| 1980 | 146,073 | Estimate |
| 1985 | 146,389 | Estimate |
| 1990 | 149,591 | Estimate |
| 1995 | 158,507 | Estimate |
| 2000 | 163,478 | Estimate |
| 2005 | 169,846 | Estimate |
| 2010 | 171,802 | Estimate |
| 2015 | 179,205 | Estimate |
| 2020 | 179,746 | Estimate |
| 2025 | 183,113 | Estimate |
| 2030 | 180,859 | Projection |
| 2035 | 179,425 | Projection |
| 2040 | 177,976 | Projection |
| 2045 | 176,613 | Projection |
| 2050 | 174,944 | Projection |
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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.