Purnia — UN urban centre
Purnia: 461,043 people. Reference: 2025 annual estimate · World rank #1,208 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 11495; 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: 25.7781, 87.4857. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 125,535 | Estimate |
| 1980 | 135,014 | Estimate |
| 1985 | 181,569 | Estimate |
| 1990 | 199,611 | Estimate |
| 1995 | 234,911 | Estimate |
| 2000 | 271,957 | Estimate |
| 2005 | 309,163 | Estimate |
| 2010 | 359,191 | Estimate |
| 2015 | 403,851 | Estimate |
| 2020 | 439,044 | Estimate |
| 2025 | 461,043 | Estimate |
| 2030 | 482,382 | Projection |
| 2035 | 500,407 | Projection |
| 2040 | 523,798 | Projection |
| 2045 | 534,148 | Projection |
| 2050 | 541,284 | Projection |
Largest UN urban centres · Fastest-growing urban centres
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