SingaporeSingapore |
ZhengzhouChina |
5 312 400
(2012) |
5 312 400
(2012)
8 626 505
(2010) |
8 626 505
(2010) |
715 km2
|
715 km2
7 446 km2
|
7 446 km2
|
7 429.93
/km2 |
7 429.93/km2
1 158.54/km2
|
1 158.54
/km2 |