How Big Is Buenos Aires?

Argentina · South America

Area

203 km²

78 mi²

Population

3.1M

Metro: 15.2M

Density

15,074/km²

Founded

1536

Buenos Aires Size Overview

Buenos Aires covers an area of 203 km² (78 mi²) in Argentina, South America. Capital and most populous city of Argentina. The city is often called "Paris of South America". To put this in perspective, Buenos Aires is roughly the same size as Amsterdam. In more relatable units, that's about 28,000 American football fields, 100 times the area of Monaco, or 60 times the area of Central Park.

Buenos Aires, officially the Autonomous City of Buenos Aires, is the capital and largest city of Argentina. It is located on the southwest of the Río de la Plata. Buenos Aires is classified as an Alpha− global city, according to the GaWC 2024 ranking. The city proper has a population of 3.1 million and its urban area has a population of 16.7 million, making it the 21st most populous metropolitan area in the world.

With a population of 3.1 million (15.2 million in the metropolitan area), Buenos Aires has a population density of 15,074 people per km². The greater Buenos Aires metropolitan area extends to 4,758 km².

Buenos Aires has a history stretching back to 1536. The city is renowned for La Boca's Caminito, Recoleta Cemetery, Teatro Colón, and Tango dance halls.

Buenos Aires has a humid subtropical climate, with summer temperatures averaging 25°C and winters around 11°C. The city's main public transit system is the Buenos Aires Subte.

Did You Know?

  • Buenos Aires is classified as an Alpha− global city according to the GaWC 2024 ranking.
  • The city proper has a population of 3.1 million while its urban area holds 16.7 million residents.
  • Buenos Aires sits on the southwest of the Río de la Plata, one of the widest river estuaries in the world.

Compare Buenos Aires with Other Cities

Compare Buenos Aires with any city using our interactive map tool.

Cities Similar in Size to Buenos Aires

Buenos Aires covers 203 km². Cities with a similar urban footprint include Helsinki (214 km²), Amsterdam (219 km²), Stockholm (188 km²), Osaka (225 km²), or Boston (232 km²).

Frequently Asked Questions about Buenos Aires

How big is Buenos Aires in square miles?
Buenos Aires covers 203 km², which is approximately 78 square miles. The metropolitan area extends to 4,758 km² (1,837 mi²).
What is the population of Buenos Aires?
Buenos Aires has a population of approximately 3.1 million people. The greater metropolitan area is home to 15.2 million.
What is the population density of Buenos Aires?
Buenos Aires has a population density of 15,074 people per km² (39,042 per mi²).
How does Buenos Aires compare to São Paulo?
Buenos Aires covers 203 km² while São Paulo covers 1,521 km². São Paulo is 7.5x larger. Use our interactive map tool to compare them side by side.
Can I compare Buenos Aires with other cities on a map?
Yes! City Map Compare lets you compare Buenos Aires with any of 50+ cities side by side on synchronized maps. Both maps maintain the same zoom level so you can see the real difference in size.