Portland
376 km²
Shanghai
6,341 km²
United States
China
Area Comparison
Portland is 16.9x smaller than Shanghai
Population Comparison
Portland has 38.3x fewer people than Shanghai
Shanghai is significantly larger, covering 16.9 times the area of Portland. Shanghai spans 6,341 km² (2,448 mi²) while Portland covers 376 km² (145 mi²) — a difference of 5,965 km². You could fit Portland inside Shanghai approximately 16 times.
To put Portland's size in perspective, its area of 376 km² is about 1.6x smaller than Seoul. Meanwhile, Shanghai at 6,341 km² is about 1.5x the size of Los Angeles metro.
In more relatable units, Portland's 376 km² is about 53,000 American football fields, 190 times the area of Monaco, or 110 times the area of Central Park. Shanghai, by comparison, equals about 888,000 American football fields, 110 times the area of Manhattan, or 60 times the area of Paris.
Portland is the most populous city in the U.S. state of Oregon. Located in the Pacific Northwest at the confluence of the Willamette and Columbia rivers, it is the 28th-most populous city in the United States, sixth-most populous on the West Coast, and fourth-most populous in the Pacific Northwest, with a population of 652,503 at the 2020 census. The Portland metropolitan area, with over 2.54 million residents, is the 26th-largest metropolitan area in the nation.
Known as "Rose City", Portland covers 376 km² with a population of 0.7 million. Portland is known for Powell's City of Books, Voodoo Doughnut, Washington Park, among other attractions.
Portland sits at the confluence of the Willamette and Columbia rivers in the Pacific Northwest.
Shanghai is a direct-administered municipality and the most populous urban area in China. It has a population of 29,558,908 in the urban area as of 2025. The city is located on the Chinese shoreline on the southern estuary of the Yangtze River, with the Huangpu River bisecting the city. Shanghai is a global center for finance, business and economics, research, science and technology, manufacturing, transportation, tourism, and culture. The Port of Shanghai is the world's busiest container port.
Also known as "Pearl of the Orient", Shanghai has an area of 6,341 km² and is home to 24.9 million people. The city dates back to 1291. Visitors come for The Bund, Oriental Pearl Tower, Shanghai Tower, and much more. Getting around is easy with the Shanghai Metro.
Shanghai's urban population reached 29.5 million in 2025, making it the most populous urban area in all of China.
Portland has a population density of 1,729 people per km² — a relatively spread-out city. Shanghai, with 3,922 people per km², is a moderately dense city. Shanghai is noticeably denser, packing 2.3 times more people per square kilometer.
Size Ratio
Portland fits inside Shanghai ~16 times
Density Gap
Shanghai is 2.3x more densely populated
Portland covers 376 km². Cities with a similar urban footprint include Philadelphia (370 km²), Seattle (369 km²), Dhaka (368 km²), Denver (401 km²), or Atlanta (348 km²).
Shanghai covers 6,341 km². Cities with a similar urban footprint include Perth (6,417 km²), Istanbul (5,461 km²), Guangzhou (7,434 km²), Wuhan (8,569 km²), or Dubai (4,114 km²).
The straight-line distance from Portland to Shanghai is 9,313 km (5,787 miles), with an estimated flight time of ~11h 27m.
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