Lagos
1,199 km²
Niamey
222 km²
City Map Compare/Lagos vs Niameyvs
vs
5 km
Lagos covers 1,199 km² of contiguous built-up land, 5.4× the built-up area of Niamey (222 km²).
| Lagos | Niamey | |
|---|---|---|
| Urban area | Lagos | Niamey |
| Population (2025) | 12.8 million | 1.60 million |
| Built-up area | 1,199 km² | 222 km² |
| Density | 10,714 /km² | 7,210 /km² |
Urban area = contiguous built-up land and the people living in it in 2025, drawn the same way for every city regardless of administrative boundaries. Source: GHSL Urban Centre Database R2024A, European Commission, Joint Research Centre (CC BY 4.0); some names adjusted to the city names people use, and country attribution follows the dataset.