SydneyAustralia |
DusseldorfGermany |
4 800 000
(2012) |
4 800 000
(2012)
592 393
(2011) |
592 393
(2011) |
12 144 km2
|
12 144 km2
217 km2
|
217 km2
|
395.26
/km2 |
395.26/km2
2 729.92/km2
|
2 729.92
/km2 |