PhiladelphiaUnited States |
ZhuhaiChina |
1 526 006
(2010) |
1 526 006
(2010)
1 481 000
(2008) |
1 481 000
(2008) |
367 km2
|
367 km2
1 653 km2
|
1 653 km2
|
4 158.05
/km2 |
4 158.05/km2
895.95/km2
|
895.95
/km2 |