Cheonan-si — UN urban centre
Cheonan-si: 428,378 people. Reference: 2025 annual estimate · World rank #1,304 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 1721; territory: South Korea (KOR). 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: 36.8138, 127.14. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 59,301 | Estimate |
| 1980 | 69,264 | Estimate |
| 1985 | 80,472 | Estimate |
| 1990 | 94,500 | Estimate |
| 1995 | 172,333 | Estimate |
| 2000 | 239,994 | Estimate |
| 2005 | 317,306 | Estimate |
| 2010 | 369,468 | Estimate |
| 2015 | 404,657 | Estimate |
| 2020 | 430,501 | Estimate |
| 2025 | 428,378 | Estimate |
| 2030 | 423,876 | Projection |
| 2035 | 418,286 | Projection |
| 2040 | 408,836 | Projection |
| 2045 | 396,313 | Projection |
| 2050 | 383,153 | Projection |
Largest UN urban centres · Fastest-growing urban centres
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