St. PetersburgRussian Federation |
WarsawPoland |
5 131 942
(2014) |
5 131 942
(2014)
1 810 598
(2012) |
1 810 598
(2012) |
1 439 km2
|
1 439 km2
523 km2
|
523 km2
|
3 566.33
/km2 |
3 566.33/km2
3 461.95/km2
|
3 461.95
/km2 |