Youyi — UN urban centre
Youyi: 680,993 people. Reference: 2025 annual estimate · World rank #794 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 10464; territory: China (CHN). 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: 39.1143, 121.7052. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 293,309 | Estimate |
| 1980 | 310,295 | Estimate |
| 1985 | 341,340 | Estimate |
| 1990 | 385,962 | Estimate |
| 1995 | 455,381 | Estimate |
| 2000 | 524,255 | Estimate |
| 2005 | 566,818 | Estimate |
| 2010 | 597,849 | Estimate |
| 2015 | 625,906 | Estimate |
| 2020 | 665,069 | Estimate |
| 2025 | 680,993 | Estimate |
| 2030 | 682,185 | Projection |
| 2035 | 679,790 | Projection |
| 2040 | 674,483 | Projection |
| 2045 | 666,475 | Projection |
| 2050 | 650,889 | Projection |
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.