Below are the urban areas with more than 100,000 inhabitants in Singapore 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 | Singapore | 4,963,998 | 0.81% | 367 | 13,526 | 84 | 5,091,752 | 5,125,633 |
| 2 | Sembawang | 878,551 | 0.83% | 61 | 14,402 | 593 | 901,979 | 914,537 |
Source: United Nations, Department of Economic and Social Affairs, Population Division (2025). World Urbanization Prospects: The 2025 Revision, Online Edition.