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Medellín — UN urban centre

3,350,384

Medellín: 3,350,384 people. Reference: 2025 annual estimate · World rank #139 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 2525; territory: Colombia (COL). 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: 6.2485, -75.5794. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.

UN population series

YearPeopleMethod
19751,920,683Estimate
19802,088,067Estimate
19852,258,791Estimate
19902,355,495Estimate
19952,502,180Estimate
20002,780,962Estimate
20053,037,828Estimate
20103,140,338Estimate
20153,217,011Estimate
20203,274,436Estimate
20253,350,384Estimate
20303,395,983Projection
20353,414,630Projection
20403,397,423Projection
20453,375,937Projection
20503,332,865Projection

Largest UN urban centres · Fastest-growing urban centres

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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.

Why an urban centre is not a municipality →

Interpretation reviewed 12 October 2026. Underlying reference years are stated on the page; this is not a fresh census or dataset refresh.