Koidu Town — UN urban centre
Koidu Town: 140,949 people. Reference: 2025 annual estimate · World rank #4,329 of 12,138 source urban centres. Source: UN DESA, World Urbanization Prospects 2025 (CC BY 3.0 IGO). Source identifier: 1252; territory: Sierra Leone (SLE). 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: 8.6416, -10.9707. National context uses World Bank estimates, a separate series and geography; no national share is inferred here.
UN population series
| Year | People | Method |
|---|---|---|
| 1975 | 94,364 | Estimate |
| 1980 | 108,312 | Estimate |
| 1985 | 110,459 | Estimate |
| 1990 | 114,563 | Estimate |
| 1995 | 98,301 | Estimate |
| 2000 | 91,349 | Estimate |
| 2005 | 106,675 | Estimate |
| 2010 | 112,667 | Estimate |
| 2015 | 125,977 | Estimate |
| 2020 | 134,125 | Estimate |
| 2025 | 140,949 | Estimate |
| 2030 | 151,655 | Projection |
| 2035 | 158,140 | Projection |
| 2040 | 164,130 | Projection |
| 2045 | 172,151 | Projection |
| 2050 | 178,124 | Projection |
Largest UN urban centres · Fastest-growing urban centres
What changed during your lifetime?
Turn these figures into a private, five-scene personal world story.
Use this source record with the right definition
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.