St. PetersburgRussian Federation |
QiqiharChina |
5 131 942
(2014) |
5 131 942
(2014)
6 011 000
(2010) |
6 011 000
(2010) |
1 439 km2
|
1 439 km2
42 469 km2
|
42 469 km2
|
3 566.33
/km2 |
3 566.33/km2
141.54/km2
|
141.54
/km2 |