HanoiVietnam |
San JuanPuerto Rico |
6 448 837
(2009) |
6 448 837
(2009)
389 714
(2011) |
389 714
(2011) |
3 344 km2
|
3 344 km2
199 km2
|
199 km2
|
1 928.48
/km2 |
1 928.48/km2
1 958.36/km2
|
1 958.36
/km2 |