VolgogradRussian Federation |
RiyadhSaudi Arabia |
1 021 000
(2010) |
1 021 000
(2010)
5 700 000
(2013) |
5 700 000
(2013) |
859 km2
|
859 km2
1 554 km2
|
1 554 km2
|
1 188.59
/km2 |
1 188.59/km2
3 667.95/km2
|
3 667.95
/km2 |