RotterdamNetherlands |
BostonUnited States |
617 347
(2012) |
617 347
(2012)
625 087
(2011) |
625 087
(2011) |
319 km2
|
319 km2
232 km2
|
232 km2
|
1 935.26
/km2 |
1 935.26/km2
2 694.34/km2
|
2 694.34
/km2 |