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Castanhal — UN urban centre

171,620

Castanhal: 171,620 people. Reference: 2025 annual estimate · World rank #3,536 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 5066; territory: Brazil (BRA). 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: -1.2922, -47.9215. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.

UN population series

YearPeopleMethod
199052,562Estimate
199569,021Estimate
200080,472Estimate
200591,405Estimate
2010106,380Estimate
2015152,017Estimate
2020164,648Estimate
2025171,620Estimate
2030179,447Projection
2035185,839Projection
2040195,358Projection
2045199,822Projection
2050204,371Projection

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.

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