ColumbusUnited States |
Hong KongChina |
822 553
(2013) |
822 553
(2013)
7 182 724
(2013) |
7 182 724
(2013) |
550 km2
|
550 km2
1 104 km2
|
1 104 km2
|
1 495.55
/km2 |
1 495.55/km2
6 506.09/km2
|
6 506.09
/km2 |