Buenos Aires
203 km²
Phoenix
1,341 km²
Argentina
United States
Area Comparison
Buenos Aires is 6.6x smaller than Phoenix
Population Comparison
Buenos Aires has 1.9x more people than Phoenix
Phoenix is significantly larger, covering 6.6 times the area of Buenos Aires. Phoenix spans 1,341 km² (518 mi²) while Buenos Aires covers 203 km² (78 mi²) — a difference of 1,138 km². You could fit Buenos Aires inside Phoenix approximately 6 times.
To put Buenos Aires's size in perspective, its area of 203 km² is roughly the same size as Amsterdam. Meanwhile, Phoenix at 1,341 km² is about 1.2x 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 Phoenix, that's about 188,000 American football fields, 23 times the area of Manhattan, or 13 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.
Phoenix is the capital and most populous city of the U.S. state of Arizona. With over 1.6 million residents at the 2020 census, Phoenix is the fifth-most populous city in the United States and the most populous state capital. The Phoenix metropolitan area, with an estimated 5.19 million residents, is the tenth-most populous metropolitan area in the U.S. and the most populous in the Mountain states and Southwest.
Often called "Valley of the Sun", Phoenix has an area of 1,341 km² and is home to 1.6 million people. It was established in 1868. Visitors come for Camelback Mountain, Desert Botanical Garden, Heard Museum, and much more.
Phoenix is the most populous U.S. state capital and the fifth-largest city in the country with 1.6 million residents.
Buenos Aires has a population density of 15,074 people per km² — an extremely dense urban environment. Phoenix, with 1,201 people per km², is a relatively spread-out city. Buenos Aires is dramatically more crowded, with 12.6x the population density.
Size Ratio
Buenos Aires fits inside Phoenix ~6 times
Density Gap
Buenos Aires is 12.6x more densely populated
History
Buenos Aires is ~332 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).
Phoenix covers 1,341 km². Cities with a similar urban footprint include Los Angeles (1,302 km²), Rome (1,285 km²), Rio de Janeiro (1,221 km²), Delhi (1,484 km²), or Mexico City (1,485 km²).
The straight-line distance from Buenos Aires to Phoenix is 9,410 km (5,847 miles), with an estimated flight time of ~11h 34m.
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