SeoulKorea, Republic of |
SapporoJapan |
10 464 051
(2011) |
10 464 051
(2011)
1 914 999
(2010) |
1 914 999
(2010) |
605 km2
|
605 km2
1 121 km2
|
1 121 km2
|
17 295.90
/km2 |
17 295.90/km2
1 708.30/km2
|
1 708.30
/km2 |