How many people live in the Buenos Aires metropolitan area?
Guess before you scroll — the answer is below
The answer
15,500,000 people
Roughly 15.5M.
Greater Buenos Aires holds around 15.5 million people, about a third of Argentina’s entire population in one metropolitan area. The city proper has roughly 3 million and has barely grown since 1947.
How to get close to this number
Work from the country. Argentina has around forty-six million people, and the explanation says roughly a third of them live in this one metropolitan area. National population times the primate-city share is the fastest route, and it works for any country with a dominant capital.
That concentration is the genuinely notable fact. A third of a country's population in a single urban area is extreme even by the standards of primate cities, and it means national politics, economics and culture are effectively metropolitan politics. Countries with this structure behave very differently from those with several comparable cities.
The detail about the city proper is the one that explains the metropolitan sprawl: the central municipality has roughly three million people and has barely grown since the 1940s, while everything around it grew enormously. Administrative boundaries froze while the urban area did not, which is why city-proper figures and metropolitan figures differ by a factor of five here.
Where this number comes from
| Source | INDEC Argentina |
|---|---|
| Figure refers to | 2023 |
| Last checked | |
| Unit | people |
Numbers move. If this one has drifted from its source, let us know.
Think you can do better?
Five fresh questions every day. No account needed.