SeoulKorea, Republic of |
ShijiazhuangChina |
10 464 051
(2011) |
10 464 051
(2011)
9 600 000
(2008) |
9 600 000
(2008) |
605 km2
|
605 km2
15 848 km2
|
15 848 km2
|
17 295.90
/km2 |
17 295.90/km2
605.75/km2
|
605.75
/km2 |