Alcalá de Henares — UN urban centre
Alcalá de Henares: 177,270 people. Reference: 2025 annual estimate · World rank #3,408 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 3889; territory: Spain (ESP). 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: 40.4871, -3.3675. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 118,886 | Estimate |
| 1980 | 122,347 | Estimate |
| 1985 | 126,986 | Estimate |
| 1990 | 130,551 | Estimate |
| 1995 | 141,650 | Estimate |
| 2000 | 148,494 | Estimate |
| 2005 | 168,404 | Estimate |
| 2010 | 184,201 | Estimate |
| 2015 | 175,656 | Estimate |
| 2020 | 174,244 | Estimate |
| 2025 | 177,270 | Estimate |
| 2030 | 184,186 | Projection |
| 2035 | 184,606 | Projection |
| 2040 | 187,622 | Projection |
| 2045 | 187,165 | Projection |
| 2050 | 185,730 | Projection |
Largest UN urban centres · Fastest-growing urban centres
What changed during your lifetime?
Turn these figures into a private, five-scene personal world story.
Use this source record with the right definition
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.