Below are the urban areas with more than 100,000 inhabitants in Guinea-Bissau 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 | Bissau | 612,643 | 1.15% | 84 | 7,293 | 884 | 654,343 | 782,910 |
| 2 | Gabu | 84,452 | 1.12% | 11 | 7,677 | 7,380 | 96,562 | 128,985 |
| 3 | Bafatá | 74,378 | 2.8% | 12 | 6,198 | 8,389 | 80,806 | 108,844 |
Source: United Nations, Department of Economic and Social Affairs, Population Division (2025). World Urbanization Prospects: The 2025 Revision, Online Edition.