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Indianapolis — UN urban centre

228,577

Indianapolis: 228,577 people. Reference: 2025 annual estimate · World rank #2,572 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 7765; territory: United States (USA). 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: 39.7835, -86.1239. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.

UN population series

YearPeopleMethod
199565,804Estimate
2000116,182Estimate
2005138,266Estimate
2010145,115Estimate
2015168,759Estimate
2020224,705Estimate
2025228,577Estimate
2030230,038Projection
2035238,462Projection
2040243,742Projection
2045245,016Projection
2050245,536Projection

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.