RotterdamNetherlands |
JohannesburgSouth Africa |
617 347
(2012) |
617 347
(2012)
4 434 827
(2011) |
4 434 827
(2011) |
319 km2
|
319 km2
1 644 km2
|
1 644 km2
|
1 935.26
/km2 |
1 935.26/km2
2 697.58/km2
|
2 697.58
/km2 |