Lagos
1,172 km²
Seattle
369 km²
Nigeria
United States
Area Comparison
Lagos is 3.2x larger than Seattle
Population Comparison
Lagos has 20.8x more people than Seattle
In terms of area, Lagos is 3.2x the size of Seattle. Lagos spans 1,172 km² (453 mi²) while Seattle covers 369 km² (142 mi²) — a difference of 803 km². You could fit Seattle inside Lagos approximately 3 times.
To put Lagos's size in perspective, its area of 1,172 km² is about 1.3x the size of Berlin. Meanwhile, Seattle at 369 km² is about 1.6x smaller than Seoul.
Lagos's footprint is roughly about 164,000 American football fields, 20 times the area of Manhattan, or 11 times the area of Paris — pick whichever unit feels intuitive. Seattle works out to about 52,000 American football fields, 180 times the area of Monaco, or 110 times the area of Central Park.
Lagos, or Lagos City, is a large metropolitan port city in southwestern Nigeria. As of November 2025, the size of the city's population has been estimated to be between 17 and 21 million residents, making Lagos the largest city in Nigeria, the most populous urban area on the African continent, and one of the fastest-growing megacities in the world.
Known as "Lasgidi", Lagos covers 1,172 km² with a population of 15.4 million. The city was established in 1472. Lagos is known for Victoria Island, Lekki Conservation Centre, Nike Art Gallery, among other attractions. The city's main transit system is the Lagos Rail (Blue & Red Lines).
Lagos is the most populous urban area on the African continent, with an estimated 17 to 21 million residents as of 2025.
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.
Also known as "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.
Lagos has a population density of 13,131 people per km² — an extremely dense urban environment. Seattle, with 2,005 people per km², is a moderately dense city. Lagos is dramatically more crowded, with 6.5x the population density.
Size Ratio
Seattle fits inside Lagos ~3 times
Density Gap
Lagos is 6.5x more densely populated
History
Lagos is ~379 years older
Lagos covers 1,172 km². Cities with a similar urban footprint include San Antonio (1,209 km²), Rio de Janeiro (1,221 km²), Hong Kong (1,114 km²), Rome (1,285 km²), or Los Angeles (1,302 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 Lagos to Seattle is 11,996 km (7,454 miles), with an estimated flight time of ~14h 37m.
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