Nairobi
696 km²
Portland
376 km²
Kenya
United States
Area Comparison
Nairobi is 1.9x larger than Portland
Population Comparison
Nairobi has 7.3x more people than Portland
In terms of area, Nairobi is 1.9x the size of Portland. Nairobi spans 696 km² (269 mi²) while Portland covers 376 km² (145 mi²) — a difference of 320 km².
To put Nairobi's size in perspective, its area of 696 km² is about 1.1x smaller than New York City. Meanwhile, Portland at 376 km² is about 1.6x smaller than Seoul.
Nairobi's footprint is roughly about 97,000 American football fields, 12 times the area of Manhattan, or 7 times the area of Paris — pick whichever unit feels intuitive. For Portland, that's about 53,000 American football fields, 190 times the area of Monaco, or 110 times the area of Central Park.
Nairobi is the capital and largest city of Kenya, located in the south-central part of the country. As of 2024, it has a population of 4.8 million and a metropolitan population of 5.7 million, making it the 11th most populous city in Africa. Nicknamed the "Green City under the Sun", Nairobi is uniquely notable for being the only capital city in the world that hosts a national park within its boundaries. Its name originates from the Maasai phrase Enkare Nyirobi, meaning "place of cool waters".
Known as "Green City under the Sun", Nairobi covers 696 km² with a population of 4.7 million. The city was established in 1899. Nairobi is known for Nairobi National Park, Giraffe Centre, Karen Blixen Museum, among other attractions. The city's main transit system is the Nairobi Commuter Rail.
Nairobi is the only capital city in the world that hosts a national park within its boundaries.
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.
Also known as "Rose City", Portland has an area of 376 km² and is home to 0.7 million people. Visitors come for Powell's City of Books, Voodoo Doughnut, Washington Park, and much more.
Portland sits at the confluence of the Willamette and Columbia rivers in the Pacific Northwest.
Nairobi has a population density of 6,796 people per km² — a densely populated city. Portland, with 1,729 people per km², is a relatively spread-out city. Nairobi is dramatically more crowded, with 3.9x the population density.
Density Gap
Nairobi is 3.9x more densely populated
Nairobi covers 696 km². Cities with a similar urban footprint include Tehran (730 km²), Jakarta (662 km²), Singapore (733 km²), Bangalore (741 km²), or Hyderabad (650 km²).
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).
The straight-line distance from Nairobi to Portland is 14,704 km (9,137 miles), with an estimated flight time of ~17h 48m.
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