PhiladelphiaUnited States |
DatongChina |
1 526 006
(2010) |
1 526 006
(2010)
3 160 000
(2007) |
3 160 000
(2007) |
367 km2
|
367 km2
14 176 km2
|
14 176 km2
|
4 158.05
/km2 |
4 158.05/km2
222.91/km2
|
222.91
/km2 |