BostonUnited States |
GuangzhouChina |
625 087
(2011) |
625 087
(2011)
13 438 972
(2009) |
13 438 972
(2009) |
232 km2
|
232 km2
7 434 km2
|
7 434 km2
|
2 694.34
/km2 |
2 694.34/km2
1 807.77/km2
|
1 807.77
/km2 |