BostonUnited States |
KatowicePoland |
625 087
(2011) |
625 087
(2011)
321 000
(2005) |
321 000
(2005) |
232 km2
|
232 km2
164 km2
|
164 km2
|
2 694.34
/km2 |
2 694.34/km2
1 957.32/km2
|
1 957.32
/km2 |