Portland
376 km²
Seoul
605 km²
United States
South Korea
Area Comparison
Portland is 1.6x smaller than Seoul
Population Comparison
Portland has 15.0x fewer people than Seoul
Seoul is significantly larger, covering 1.6 times the area of Portland. Seoul spans 605 km² (234 mi²) while Portland covers 376 km² (145 mi²) — a difference of 229 km².
To put Portland's size in perspective, its area of 376 km² is about 1.6x smaller than Seoul. Meanwhile, Seoul at 605 km² is about 1.3x smaller than New York City.
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. For Seoul, that's about 85,000 American football fields, 180 times the area of Central Park, or 10 times the area of Manhattan.
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.
Seoul, officially Seoul Special Metropolitan City, is the capital and largest city of South Korea, and the largest city in the whole of Korea. The broader Seoul Metropolitan Area, encompassing Seoul, Gyeonggi Province and Incheon, emerged as the world's sixth largest metropolitan economy in 2022, behind New York, Tokyo, Los Angeles, Paris, and London, and hosts more than half of South Korea's population.
Seoul has an area of 605 km² and is home to 9.8 million people. Its history stretches back to 18 BC. Visitors come for Gyeongbokgung Palace, Gangnam district, Myeongdong shopping, and much more. Getting around is easy with the Seoul Metro.
Seoul Metropolitan Area emerged as the world's sixth largest metropolitan economy in 2022, behind only NYC, Tokyo, LA, Paris, and London.
Portland has a population density of 1,729 people per km² — a relatively spread-out city. Seoul, with 16,149 people per km², is an extremely dense urban environment. Seoul is dramatically more crowded, with 9.3x the population density.
Density Gap
Seoul is 9.3x 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).
Seoul covers 605 km². Cities with a similar urban footprint include Chicago (606 km²), Madrid (604 km²), Mumbai (603 km²), Toronto (630 km²), or Hyderabad (650 km²).
The straight-line distance from Portland to Seoul is 8,451 km (5,251 miles), with an estimated flight time of ~10h 27m.
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