VolgogradRussian Federation |
ChengduChina |
1 021 000
(2010) |
1 021 000
(2010)
7 123 000
(2010) |
7 123 000
(2010) |
859 km2
|
859 km2
12 390 km2
|
12 390 km2
|
1 188.59
/km2 |
1 188.59/km2
574.90/km2
|
574.90
/km2 |