Buenos Aires proper has a population of 3 million.
Vancouver has a population of 603,000.
The regional population for BA is 13 million.
For Metro Vancouver 2.3 million.
The population density in each city proper is 13,000/square km for BA,
and 5,200 for Vancouver.
Canada's popluation is 35 million.
Argentina's is 42 million.
Canada covers almost 10 million square km
Argentina has about 2.8 million square km