Chennai
1,052 km²
Colombo
1,206 km²
City Map Compare/Chennai vs Colombovs
vs
5 km
Colombo covers 1,206 km² of contiguous built-up land, 1.1× the built-up area of Chennai (1,052 km²).
| Chennai | Colombo | |
|---|---|---|
| Urban area | Chennai | Colombo |
| Population (2025) | 11.5 million | 4.72 million |
| Built-up area | 1,052 km² | 1,206 km² |
| Density | 10,900 /km² | 3,915 /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.