Xi'anChina |
BostonUnited States |
7 270 000
(2006) |
7 270 000
(2006)
625 087
(2011) |
625 087
(2011) |
9 983 km2
|
9 983 km2
232 km2
|
232 km2
|
728.24
/km2 |
728.24/km2
2 694.34/km2
|
2 694.34
/km2 |