Arrah — UN urban centre
Arrah: 547,584 people. Reference: 2025 annual estimate · World rank #1,005 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 10929; territory: India (IND). 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: 25.5562, 84.6625. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 154,922 | Estimate |
| 1980 | 174,656 | Estimate |
| 1985 | 195,158 | Estimate |
| 1990 | 227,429 | Estimate |
| 1995 | 267,378 | Estimate |
| 2000 | 306,320 | Estimate |
| 2005 | 346,739 | Estimate |
| 2010 | 391,701 | Estimate |
| 2015 | 438,925 | Estimate |
| 2020 | 471,505 | Estimate |
| 2025 | 547,584 | Estimate |
| 2030 | 586,538 | Projection |
| 2035 | 618,834 | Projection |
| 2040 | 642,092 | Projection |
| 2045 | 663,615 | Projection |
| 2050 | 690,683 | Projection |
Largest UN urban centres · Fastest-growing urban centres
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