Gaborone
122 km²
Johannesburg
1,756 km²
Johannesburg covers 1,756 km² of contiguous built-up land, 14× the built-up area of Gaborone (122 km²).
| Gaborone | Johannesburg | |
|---|---|---|
| Urban area | Gaborone | Johannesburg |
| Population (2025) | 298,993 | 8.59 million |
| Built-up area | 122 km² | 1,756 km² |
| Density | 2,451 /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.