Quick facts
Buenos Aires overview
Buenos Aires (orange) and the other large cities of Argentina
Buenos Aires lies in Buenos Aires F.D. in Argentina at 34.61°S, 58.38°W, about 31 m above sea level. The local time zone is America/Argentina/Buenos_Aires (UTC-3); GeoNames classifies it as a national capital.
It is the biggest urban centre of Argentina: the next largest cities are Córdoba (2,106,734), Rosario (948,312), Mar del Plata (593,337). Together, the three largest cities hold 12.9% of the national population.
The nearest large city is Avellaneda, about 5 km away, followed by Lanús (11 km).
Argentina as a whole has a live population of 46,050,345 (+0.3% a year) and ranks #35 of 238 countries — see the Argentina population page for the full statistics and the Argentina atlas for provinces, terrain and society maps.
Cities near Buenos Aires
| City | Distance | Population |
|---|---|---|
| Avellaneda Buenos Aires | 5 km | 367,554 |
| Lanús Buenos Aires | 11 km | 212,252 |
| Lomas de Zamora Buenos Aires | 16 km | 111,897 |
| Quilmes Buenos Aires | 16 km | 262,379 |
| San Justo Buenos Aires | 19 km | 105,274 |
| Isidro Casanova Buenos Aires | 22 km | 131,981 |
| Berazategui Buenos Aires | 23 km | 180,523 |
| Laferrere Buenos Aires | 24 km | 248,362 |
Largest cities in Argentina
| # | City | Region | Population |
|---|---|---|---|
| 1 | Buenos AiresCapital | Buenos Aires F.D. | 2,891,082 |
| 2 | Córdoba | Cordoba | 2,106,734 |
| 3 | Rosario | Santa Fe | 948,312 |
| 4 | Mar del Plata | Buenos Aires | 593,337 |
| 5 | San Miguel de Tucumán | Tucuman | 548,866 |
| 6 | Salta | Salta | 520,683 |
| 7 | Santa Fe | Santa Fe | 391,164 |
| 8 | Avellaneda | Buenos Aires | 367,554 |
| 9 | Corrientes | Corrientes | 346,334 |
| 10 | Posadas | Misiones | 305,874 |
Frequently asked questions
What is the population of Buenos Aires?
Buenos Aires has about 2,891,082 inhabitants according to the latest official census or estimate compiled by GeoNames. This is the city proper; the metropolitan area is larger.
Is Buenos Aires the capital of Argentina?
Yes — Buenos Aires is the national capital of Argentina.
How big is Buenos Aires compared with the rest of Argentina?
Its 2,891,082 residents are 6.3% of the 46,050,345 people living in Argentina today. It is the largest city in the country.
Where is Buenos Aires?
In Buenos Aires F.D., Argentina, at latitude -34.61 and longitude -58.38, 31 m above sea level. Nearby large cities include Avellaneda (5 km), Lanús (11 km), Lomas de Zamora (16 km).
Explore more
Cite or link to this page
Glostats. (2026). Buenos Aires Population 2026 — Argentina. Retrieved October 20, 2026, from https://glostats.com/cities/argentina/buenos-aires/<a href="https://glostats.com/cities/argentina/buenos-aires/">Buenos Aires Population 2026 — Argentina</a> — GlostatsFigures on this page may be quoted, charted or republished as long as the page is credited with a link. Terms · Download the data as CSV · Embed a live counter.
City populations are GeoNames figures (CC BY 4.0): the latest official census or estimate for the city proper — the municipality, not the wider metropolitan area — so they can differ from "metro area" numbers you see elsewhere. Country populations are live Glostats estimates from the UN World Population Prospects. Distances are great-circle distances between city centres. Page generated 2026-10-20. More about our data.