Niigata — UN urban centre
Niigata: 422,238 people. Reference: 2025 annual estimate · World rank #1,326 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 4995; territory: Japan (JPN). 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: 37.9054, 139.0484. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 263,268 | Estimate |
| 1980 | 319,321 | Estimate |
| 1985 | 327,468 | Estimate |
| 1990 | 405,549 | Estimate |
| 1995 | 500,293 | Estimate |
| 2000 | 504,946 | Estimate |
| 2005 | 485,315 | Estimate |
| 2010 | 463,096 | Estimate |
| 2015 | 443,583 | Estimate |
| 2020 | 432,878 | Estimate |
| 2025 | 422,238 | Estimate |
| 2030 | 410,506 | Projection |
| 2035 | 399,419 | Projection |
| 2040 | 371,509 | Projection |
| 2045 | 352,853 | Projection |
| 2050 | 343,393 | Projection |
Largest UN urban centres · Fastest-growing urban centres
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