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Argentina
USA
Area Comparison
Buenos Aires is 1.1x larger than Washington D.C.
Population Comparison
Buenos Aires has 4.4x more people than Washington D.C.
In terms of area, Buenos Aires is 1.1x the size of Washington D.C.. Buenos Aires spans 203 km² (78 mi²) while Washington D.C. covers 177 km² (68 mi²) — a difference of 26 km².
To put Buenos Aires's size in perspective, its area of 203 km² is roughly the same size as Amsterdam. Meanwhile, Washington D.C. at 177 km² is roughly the same size as Washington D.C..
Argentina's capital and a cultural powerhouse of South America. Known as "The 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 Tango dancing, La Boca neighborhood, Recoleta Cemetery, among other attractions. The city's main transit system is the Buenos Aires Subte.
Buenos Aires has more bookstores per capita than any other city in the world
Capital of the United States. Also known as "D.C.", Washington D.C. has an area of 177 km² and is home to 0.7 million people. It was established in 1790. Visitors come for The White House, Lincoln Memorial, Smithsonian museums, and much more. Getting around is easy with the Washington Metro.
D.C. has more free museums than any other city in the US — all 19 Smithsonian museums charge no admission
Looking beyond city limits, the Washington D.C. metropolitan area covers 14,412 km², which is 3.0x larger than greater Buenos Aires at 4,758 km². The Buenos Aires metro area is also more populous, with 15.2 million people compared to 6.3 million.
Buenos Aires has a population density of 15,074 people per km² — an extremely dense urban environment. Washington D.C., with 3,898 people per km², is a moderately dense city. Buenos Aires is dramatically more crowded, with 3.9x the population density.
This comparison spans continents — Buenos Aires in South America versus Washington D.C. in North America. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Both cities share a humid subtropical climate, though local geography creates distinct microclimates in each. When it's noon in Buenos Aires, it's 10:00 AM in Washington D.C. — a 2-hour time difference.
Density Gap
Buenos Aires is 3.9x more densely populated
History
Buenos Aires is ~254 years older
The straight-line distance from Buenos Aires to Washington D.C. is 8,397 km (5,217 miles), with an estimated flight time of ~10h 23m. See full distance details, including timezone difference and city facts.
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