OkayamaJapan |
DongguanChina |
709 584
(2010) |
709 584
(2010)
6 445 000
(2008) |
6 445 000
(2008) |
789 km2
|
789 km2
2 465 km2
|
2 465 km2
|
899.35
/km2 |
899.35/km2
2 614.60/km2
|
2 614.60
/km2 |