Sadly, there is no "Buenos Aires city" in argentina, but a third of the population does live in AMBA, which would be close to what you said!
I reckon New Zealand ain't even on this map seriously, how ppl forget an entire country?
A third of the Argentina population lives in Buenos Aires city.
Sadly, there is no "Buenos Aires city" in argentina, but a third of the population does live in AMBA, which would be close to what you said!
I tried to distinguish it from the province