Buenos Aires
203 km²
San Antonio
1,209 km²
Argentina
United States
Area Comparison
Buenos Aires is 6.0x smaller than San Antonio
Population Comparison
Buenos Aires has 2.1x more people than San Antonio
San Antonio is significantly larger, covering 6.0 times the area of Buenos Aires. San Antonio spans 1,209 km² (467 mi²) while Buenos Aires covers 203 km² (78 mi²) — a difference of 1,006 km². You could fit Buenos Aires inside San Antonio approximately 5 times.
To put Buenos Aires's size in perspective, its area of 203 km² is roughly the same size as Amsterdam. Meanwhile, San Antonio at 1,209 km² is about 1.3x smaller than London.
In more relatable units, Buenos Aires's 203 km² is about 28,000 American football fields, 100 times the area of Monaco, or 60 times the area of Central Park. For San Antonio, that's about 169,000 American football fields, 20 times the area of Manhattan, or 11 times the area of Paris.
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.
Known as "Paris of South America", Buenos Aires covers 203 km² with a population of 3.1 million. The city was established in 1536. Buenos Aires is known for La Boca's Caminito, Recoleta Cemetery, Teatro Colón, among other attractions. The city's main transit system is the Buenos Aires Subte.
Buenos Aires is classified as an Alpha− global city according to the GaWC 2024 ranking.
San Antonio is a city in the U.S. state of Texas. It is the seventh-most populous city in the United States, the second-most populous city in Texas, and the second-most populous city in the Southern U.S., with a population of 1.43 million at the 2020 census. The Greater San Antonio metropolitan area, with an estimated 2.76 million residents, ranks as the third-largest metropolitan area in Texas and the 24th-largest in the nation. It is the county seat of Bexar County.
Also known as "Alamo City", San Antonio has an area of 1,209 km² and is home to 1.4 million people. Its history stretches back to 1718. Visitors come for The Alamo, San Antonio River Walk, Tower of the Americas, and much more.
San Antonio is the seventh-most populous city in the United States and second-most populous in Texas, with 1.43 million residents.
Buenos Aires has a population density of 15,074 people per km² — an extremely dense urban environment. San Antonio, with 1,183 people per km², is a relatively spread-out city. Buenos Aires is dramatically more crowded, with 12.7x the population density.
Size Ratio
Buenos Aires fits inside San Antonio ~5 times
Density Gap
Buenos Aires is 12.7x more densely populated
History
Buenos Aires is ~182 years older
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).
San Antonio covers 1,209 km². Cities with a similar urban footprint include Rio de Janeiro (1,221 km²), Lagos (1,172 km²), Rome (1,285 km²), Los Angeles (1,302 km²), or Hong Kong (1,114 km²).
The straight-line distance from Buenos Aires to San Antonio is 8,270 km (5,139 miles), with an estimated flight time of ~10h 14m.
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