PhiladelphiaUnited States |
YerevanArmenia |
1 526 006
(2010) |
1 526 006
(2010)
1 068 000
(2014) |
1 068 000
(2014) |
367 km2
|
367 km2
223 km2
|
223 km2
|
4 158.05
/km2 |
4 158.05/km2
4 789.24/km2
|
4 789.24
/km2 |