Buenos Aires
203 km²
Seattle
369 km²
Argentina
United States
Area Comparison
Buenos Aires is 1.8x smaller than Seattle
Population Comparison
Buenos Aires has 4.1x more people than Seattle
Yes — Seattle is 1.8x larger than Buenos Aires by area. Seattle spans 369 km² (142 mi²) while Buenos Aires covers 203 km² (78 mi²) — a difference of 166 km².
To put Buenos Aires's size in perspective, its area of 203 km² is roughly the same size as Amsterdam. Meanwhile, Seattle at 369 km² is about 1.6x smaller than Seoul.
Picture Buenos Aires another way: its area is large enough to fit about 28,000 American football fields, 100 times the area of Monaco, or 60 times the area of Central Park. Seattle, by comparison, equals about 52,000 American football fields, 180 times the area of Monaco, or 110 times the area of Central Park.
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.
Seattle is the most populous city in the U.S. state of Washington and the Pacific Northwest region of North America. It is the 18th-most populous city in the United States with a population of 780,995 in 2024, while the Seattle metropolitan area at over 4.15 million residents is the 15th-most populous metropolitan area in the nation. The city is the county seat of King County, the most populous county in Washington.
Often called "The Emerald City", Seattle has an area of 369 km² and is home to 0.7 million people. It was established in 1851. Visitors come for Space Needle, Pike Place Market, Starbucks headquarters, and much more.
Seattle is Washington's most populous city with 780,995 residents in 2024, anchoring the Pacific Northwest.
Buenos Aires has a population density of 15,074 people per km² — an extremely dense urban environment. Seattle, with 2,005 people per km², is a moderately dense city. Buenos Aires is dramatically more crowded, with 7.5x the population density.
Density Gap
Buenos Aires is 7.5x more densely populated
History
Buenos Aires is ~315 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).
Seattle covers 369 km². Cities with a similar urban footprint include Philadelphia (370 km²), Dhaka (368 km²), Portland (376 km²), Atlanta (348 km²), or Denver (401 km²).
The straight-line distance from Buenos Aires to Seattle is 11,132 km (6,917 miles), with an estimated flight time of ~13h 36m.
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