LuoyangChina |
St. PetersburgRussian Federation |
6 544 007
(2008) |
6 544 007
(2008)
5 131 942
(2014) |
5 131 942
(2014) |
15 208 km2
|
15 208 km2
1 439 km2
|
1 439 km2
|
430.30
/km2 |
430.30/km2
3 566.33/km2
|
3 566.33
/km2 |