Johannesburg
1,644 km²
San Antonio
1,209 km²
South Africa
United States
Area Comparison
Johannesburg is 1.4x larger than San Antonio
Population Comparison
Johannesburg has 3.4x more people than San Antonio
Yes — Johannesburg is 1.4x larger than San Antonio by area. Johannesburg spans 1,644 km² (635 mi²) while San Antonio covers 1,209 km² (467 mi²) — a difference of 435 km².
To put Johannesburg's size in perspective, its area of 1,644 km² is roughly the same size as London. Meanwhile, San Antonio at 1,209 km² is about 1.3x smaller than London.
Picture Johannesburg another way: its area is large enough to fit about 230,000 American football fields, 28 times the area of Manhattan, or 16 times the area of Paris. For San Antonio, that's about 169,000 American football fields, 20 times the area of Manhattan, or 11 times the area of Paris.
Johannesburg, colloquially known as Jozi, Joburg or "The City of Gold", is the most populous city in South Africa. The City of Johannesburg itself has a population of 5,538,596, while the City of Johannesburg Metropolitan Municipality has a population of 6,599,190, making it one of the 100 largest urban areas in the world. Johannesburg is the provincial capital of Gauteng, the wealthiest province in South Africa, and seat of the country's highest court, the Constitutional Court.
Known as "Jozi", Johannesburg covers 1,644 km² with a population of 4.8 million. The city was established in 1886. Johannesburg is known for Apartheid Museum, Soweto township, Constitutional Court, among other attractions.
Johannesburg ranks among the world's 100 largest urban areas, with a metro population of about 6.6 million.
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. The city dates 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.
Johannesburg has a population density of 2,920 people per km² — a moderately dense city. San Antonio, with 1,183 people per km², is a relatively spread-out city. Johannesburg is noticeably denser, packing 2.5 times more people per square kilometer.
Density Gap
Johannesburg is 2.5x more densely populated
History
San Antonio is ~168 years older
Johannesburg covers 1,644 km². Cities with a similar urban footprint include Bogotá (1,578 km²), London (1,572 km²), Bangkok (1,569 km²), Houston (1,725 km²), or São Paulo (1,521 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 Johannesburg to San Antonio is 14,791 km (9,191 miles), with an estimated flight time of ~17h 54m.
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