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