Nairobi
696 km²
San Antonio
1,209 km²
Kenya
United States
Area Comparison
Nairobi is 1.7x smaller than San Antonio
Population Comparison
Nairobi has 3.3x more people than San Antonio
Yes — San Antonio is 1.7x larger than Nairobi by area. San Antonio spans 1,209 km² (467 mi²) while Nairobi covers 696 km² (269 mi²) — a difference of 513 km².
To put Nairobi's size in perspective, its area of 696 km² is about 1.1x smaller than New York City. Meanwhile, San Antonio at 1,209 km² is about 1.3x smaller than London.
Picture Nairobi another way: its area is large enough to fit about 97,000 American football fields, 12 times the area of Manhattan, or 7 times the area of Paris. San Antonio works out to about 169,000 American football fields, 20 times the area of Manhattan, or 11 times the area of Paris.
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.
San Antonio is a city in the U.S. state of Texas. It is the seventh-most populous city in the United States, the second-most populous city in Texas, and the second-most populous city in the Southern U.S., with a population of 1.43 million at the 2020 census. The Greater San Antonio metropolitan area, with an estimated 2.76 million residents, ranks as the third-largest metropolitan area in Texas and the 24th-largest in the nation. It is the county seat of Bexar County.
Nicknamed "Alamo City", San Antonio has an area of 1,209 km² and is home to 1.4 million people. Its history stretches back to 1718. Visitors come for The Alamo, San Antonio River Walk, Tower of the Americas, and much more.
San Antonio is the seventh-most populous city in the United States and second-most populous in Texas, with 1.43 million residents.
Nairobi has a population density of 6,796 people per km² — a densely populated city. San Antonio, with 1,183 people per km², is a relatively spread-out city. Nairobi is dramatically more crowded, with 5.7x the population density.
Density Gap
Nairobi is 5.7x more densely populated
History
San Antonio is ~181 years older
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).
San Antonio covers 1,209 km². Cities with a similar urban footprint include Rio de Janeiro (1,221 km²), Lagos (1,172 km²), Rome (1,285 km²), Los Angeles (1,302 km²), or Hong Kong (1,114 km²).
The straight-line distance from Nairobi to San Antonio is 14,351 km (8,917 miles), with an estimated flight time of ~17h 23m.
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