Below are the urban areas with more than 100,000 inhabitants in Gabon ranked by population.
Urban Area (or urban agglomeration) population refers to the population contained within the contours of a contiguous territory inhabited at urban density levels, typically comprising a city and its surrounding suburban fringe.
| Rank | Urban Area | Population Estimate (2025) | 1 Year Change (over 2024) | Land Area (Km²) | Density (P/Km²) | Global Rank | Projections (2030) | Projections (2050) |
|---|---|---|---|---|---|---|---|---|
| 1 | Libreville | 921,216 | 1.17% | 175 | 5,264 | 562 | 975,282 | 1,171,404 |
| 2 | Franceville | 294,863 | 3.65% | 47 | 6,274 | 1,969 | 340,986 | 569,220 |
| 3 | Moanda | 115,714 | 2.48% | 15 | 7,714 | 5,305 | 132,127 | 236,171 |
| 4 | Port-Gentil | 101,485 | 0.38% | 35 | 2,900 | 6,087 | 102,320 | 107,845 |
| 5 | Oyem | 90,307 | 2.54% | 18 | 5,017 | 6,868 | 98,656 | 145,338 |
| 6 | Point Denis | 63,285 | 3.11% | 5 | 12,657 | 9,781 | 72,891 | 187,667 |
Source: United Nations, Department of Economic and Social Affairs, Population Division (2025). World Urbanization Prospects: The 2025 Revision, Online Edition.