Longmont — UN urban centre
Longmont: 62,730 people. Reference: 2025 annual estimate · World rank #9,879 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 6108; territory: United States (USA). 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: 40.1846, -105.103. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 2010 | 50,690 | Estimate |
| 2015 | 58,874 | Estimate |
| 2020 | 61,454 | Estimate |
| 2025 | 62,730 | Estimate |
| 2030 | 66,963 | Projection |
| 2035 | 68,738 | Projection |
| 2040 | 70,379 | Projection |
| 2045 | 71,710 | Projection |
| 2050 | 74,331 | Projection |
Largest UN urban centres · Fastest-growing urban centres
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