VolgogradRussian Federation |
Xi'anChina |
1 021 000
(2010) |
1 021 000
(2010)
7 270 000
(2006) |
7 270 000
(2006) |
859 km2
|
859 km2
9 983 km2
|
9 983 km2
|
1 188.59
/km2 |
1 188.59/km2
728.24/km2
|
728.24
/km2 |