Boston
232 km²
Lagos
1,172 km²
USA
Nigeria
Area Comparison
Boston is 5.1x smaller than Lagos
Population Comparison
Boston has 22.6x fewer people than Lagos
In terms of area, Lagos is 5.1x the size of Boston. Lagos spans 1,172 km² (453 mi²) while Boston covers 232 km² (90 mi²) — a difference of 940 km². You could fit Boston inside Lagos approximately 5 times.
To put Boston's size in perspective, its area of 232 km² is roughly the same size as Amsterdam. Meanwhile, Lagos at 1,172 km² is about 1.3x the size of Berlin.
Boston's footprint is roughly about 32,000 American football fields, 110 times the area of Monaco, or 68 times the area of Central Park — pick whichever unit feels intuitive. For Lagos, that's about 164,000 American football fields, 20 times the area of Manhattan, or 11 times the area of Paris.
Boston is the capital and most populous city of the U.S. state of Massachusetts. It serves as a cultural and financial center of New England, a region of the Northeastern United States. Boston has an area of 48.4 sq mi (125 km2) and a population of 675,647 as of the 2020 census, making it the third-most populous city in the Northeastern United States after New York City and Philadelphia.
Known as "Beantown", Boston covers 232 km² with a population of 0.7 million. The city was established in 1630. Boston is known for Fenway Park, Freedom Trail, Harvard University, among other attractions. The city's main transit system is the MBTA (The T).
Boston covers just 125 km2 yet serves as the cultural and financial heart of all New England
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.
Often called "Lasgidi", Lagos has an area of 1,172 km² and is home to 15.4 million people. The city dates back to 1472. Visitors come for Victoria Island, Lekki Conservation Centre, Nike Art Gallery, and much more. Getting around is easy with 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.
Looking beyond city limits, the Boston metropolitan area covers 11,700 km², which is 4.3x larger than greater Lagos at 2,706 km². The Lagos metro area is also more populous, with 21.0 million people compared to 4.9 million.
Boston has a population density of 2,931 people per km² — a moderately dense city. Lagos, with 13,131 people per km², is an extremely dense urban environment. Lagos is dramatically more crowded, with 4.5x the population density.
This comparison spans continents — Boston in North America versus Lagos in Africa. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Boston has a humid continental climate while Lagos experiences tropical savanna conditions. Winters differ dramatically: Lagos stays around 27°C while Boston drops to -1°C. When it's noon in Lagos, it's 6:00 AM in Boston — a 6-hour time difference.
Size Ratio
Boston fits inside Lagos ~5 times
Density Gap
Lagos is 4.5x more densely populated
Time Difference
6 hours apart
History
Lagos is ~158 years older
Boston covers 232 km². Cities with a similar urban footprint include Osaka (225 km²), Kuala Lumpur (243 km²), Amsterdam (219 km²), Helsinki (214 km²), or Edinburgh (259 km²).
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).
The straight-line distance from Boston to Lagos is 8,242 km (5,122 miles), with an estimated flight time of ~10h 12m.
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