Antananarivo
442 km²
Johannesburg
1,756 km²
City Map Compare/Antananarivo vs Johannesburgvs
vs
5 km
Johannesburg covers 1,756 km² of contiguous built-up land, 4.0× the built-up area of Antananarivo (442 km²).
| Antananarivo | Johannesburg | |
|---|---|---|
| Urban area | Antananarivo | Johannesburg |
| Population (2025) | 4.26 million | 8.59 million |
| Built-up area | 442 km² | 1,756 km² |
| Density | 9,627 /km² | 4,893 /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.