RotterdamNetherlands |
CologneGermany |
617 347
(2012) |
617 347
(2012)
1 017 155
(2011) |
1 017 155
(2011) |
319 km2
|
319 km2
405 km2
|
405 km2
|
1 935.26
/km2 |
1 935.26/km2
2 511.49/km2
|
2 511.49
/km2 |