QingdaoChina |
BostonUnited States |
2 755 500
(2007) |
2 755 500
(2007)
625 087
(2011) |
625 087
(2011) |
10 654 km2
|
10 654 km2
232 km2
|
232 km2
|
258.64
/km2 |
258.64/km2
2 694.34/km2
|
2 694.34
/km2 |