Chengdu
14,378 km²
Seattle
369 km²
People's Republic of China
United States
Area Comparison
Chengdu is 39.0x larger than Seattle
Population Comparison
Chengdu has 28.3x more people than Seattle
Chengdu is significantly larger, covering 39.0 times the area of Seattle. Chengdu spans 14,378 km² (5,551 mi²) while Seattle covers 369 km² (142 mi²) — a difference of 14,009 km². You could fit Seattle inside Chengdu approximately 38 times.
To put Chengdu's size in perspective, its area of 14,378 km² is about 2.3x the size of Shanghai. Meanwhile, Seattle at 369 km² is about 1.6x smaller than Seoul.
Chengdu's footprint is roughly about 2,000,000 American football fields, 140 times the area of Paris, or 120 times the area of San Francisco — pick whichever unit feels intuitive. Seattle, by comparison, equals about 52,000 American football fields, 180 times the area of Monaco, or 110 times the area of Central Park.
Chengdu is the capital city of the Chinese province of Sichuan. With a population of 20,937,757 at the 2020 census, it is the fourth most populous city in China, and it is the only city with a population of over 20 million apart from provincial-level municipalities. It is traditionally the hub of Western China.
Known as "Land of Abundance", Chengdu covers 14,378 km² with a population of 20.9 million. The city was founded around 310 BC. Chengdu is known for Giant Panda Breeding Base, Jinli Ancient Street, Wuhou Shrine, among other attractions.
Chengdu has a population of over 20.9 million, making it the fourth most populous city in China.
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. Its history stretches back to 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.
Chengdu has a population density of 1,456 people per km² — a relatively spread-out city. Seattle, with 2,005 people per km², is a moderately dense city. Both cities have comparable density, though Seattle is slightly more compact.
Size Ratio
Seattle fits inside Chengdu ~38 times
Density Gap
Seattle is 1.4x more densely populated
History
Chengdu is ~2,161 years older
Chengdu covers 14,378 km². Cities with a similar urban footprint include Brisbane (15,826 km²), Beijing (16,411 km²), Sydney (12,368 km²), Hangzhou (16,854 km²), or Xi'an (10,097 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 Chengdu to Seattle is 10,157 km (6,311 miles), with an estimated flight time of ~12h 27m.
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