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