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San Juan — UN urban centre

464,466

San Juan: 464,466 people. Reference: 2025 annual estimate · World rank #1,198 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 25; territory: Argentina (ARG). 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: -31.5395, -68.542. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.

UN population series

YearPeopleMethod
1975212,819Estimate
1980249,061Estimate
1985280,856Estimate
1990320,852Estimate
1995348,470Estimate
2000378,810Estimate
2005401,811Estimate
2010418,935Estimate
2015438,830Estimate
2020449,782Estimate
2025464,466Estimate
2030480,782Projection
2035485,973Projection
2040491,678Projection
2045494,718Projection
2050502,548Projection

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.