Bo'ai — UN urban centre
Bo'ai: 339,876 people. Reference: 2025 annual estimate · World rank #1,683 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 9334; 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: 35.1867, 112.9981. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 53,810 | Estimate |
| 1980 | 60,193 | Estimate |
| 1985 | 111,689 | Estimate |
| 1990 | 137,274 | Estimate |
| 1995 | 225,362 | Estimate |
| 2000 | 249,026 | Estimate |
| 2005 | 303,356 | Estimate |
| 2010 | 317,955 | Estimate |
| 2015 | 326,802 | Estimate |
| 2020 | 342,060 | Estimate |
| 2025 | 339,876 | Estimate |
| 2030 | 333,469 | Projection |
| 2035 | 328,116 | Projection |
| 2040 | 319,863 | Projection |
| 2045 | 311,008 | Projection |
| 2050 | 287,418 | Projection |
Largest UN urban centres · Fastest-growing urban centres
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