Capital of Argentina: Buenos Aires
The capital of Argentina is Buenos Aires. Argentina sits in South America, has a population of 46,234,830, and uses the ARS. Official languages include Spanish.
Quick facts
- Capital: Buenos Aires
- Continent: South America
- Population: ~46,234,830
- Area: 2,780,400 km²
- Population density: 16.6 people per km²
- Official language: Spanish
- Currency: ARS
- ISO code: AR
How big is Argentina?
By population, Argentina ranks 33rd in the world, holding roughly 0.58% of all people on Earth. By land area it ranks 8th.
Those two numbers rarely match, and the gap between them is the interesting part. Argentina has 16.6 people per square kilometre, which is about 3.6 times below the world average of 59.4. It is more spacious than its population alone would suggest.
Within South America, Argentina is the 3rd most populous country of 12.
Countries of a similar size
The two countries closest to Argentina in population are Sudan (46,874,204) and Uganda (47,249,585).
By land area, its closest counterparts are Kazakhstan (2,724,900 km²) and Algeria (2,381,741 km²).
Comparisons like these are worth more than raw figures when you are trying to remember them. A number on its own is hard to hold; a number next to a country you already have a feel for is much easier.
Language and currency
Spanish is spoken officially in 20 countries in this dataset, including Bolivia, Chile, Colombia, Costa Rica and Cuba, and 14 others.
Argentina uses the ARS, and it is the only country that does, which makes the currency name a reliable one-to-one clue.
Argentina in South America
The largest countries by population sharing this continent are Brazil, Colombia, Peru and Venezuela.
If you are learning capitals region by region — far more effective than working alphabetically — South America is the block Argentina belongs to, and its neighbours are the ones worth learning alongside it.
Try the Country to Capital Quiz, or the harder reverse direction. There is also a full country profile for Argentina and a page on the flag of Argentina.
Frequently asked questions
What is the capital of Argentina?
The capital of Argentina is Buenos Aires.
What is the population of Argentina?
About 46,234,830, making it the 33rd most populous country in the world.
How big is Argentina?
2,780,400 square kilometres, ranking 8th by land area, at a density of 16.6 people per square kilometre.
What currency does Argentina use?
The ARS, which no other country uses.