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Cape Town — UN urban centre

4,508,921

Cape Town: 4,508,921 people. Reference: 2025 annual estimate · World rank #93 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 413; territory: South Africa (ZAF). 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: -33.9805, 18.6. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.

UN population series

YearPeopleMethod
1975983,713Estimate
19801,259,733Estimate
19851,602,869Estimate
19901,821,959Estimate
19952,130,458Estimate
20002,427,022Estimate
20052,750,198Estimate
20103,072,960Estimate
20153,455,322Estimate
20204,076,992Estimate
20254,508,921Estimate
20304,892,959Projection
20355,224,375Projection
20405,558,275Projection
20455,843,782Projection
20506,127,476Projection

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.