Lisbon
100 km²
San Antonio
1,209 km²
Portugal
United States
Area Comparison
Lisbon is 12.1x smaller than San Antonio
Population Comparison
Lisbon has 2.6x fewer people than San Antonio
San Antonio is significantly larger, covering 12.1 times the area of Lisbon. San Antonio spans 1,209 km² (467 mi²) while Lisbon covers 100 km² (39 mi²) — a difference of 1,109 km². You could fit Lisbon inside San Antonio approximately 12 times.
To put Lisbon's size in perspective, its area of 100 km² is roughly the same size as Paris (city proper). Meanwhile, San Antonio at 1,209 km² is about 1.3x smaller than London.
Picture Lisbon another way: its area is large enough to fit about 14,000 American football fields, 50 times the area of Monaco, or 29 times the area of Central Park. For San Antonio, that's about 169,000 American football fields, 20 times the area of Manhattan, or 11 times the area of Paris.
Lisbon is the capital and most populous city of Portugal, with an estimated population of 575,739 as of 2024, within its administrative limits and 3,028,000 within the metropolis, as of 2025. Lisbon is mainland Europe's westernmost capital city, and the only one along the Atlantic coast, the others being on islands. The city lies in the western portion of the Iberian Peninsula, on the northern shore of the River Tagus.
Known as "City of Seven Hills", Lisbon covers 100 km² with a population of 0.6 million. The city was founded around 1200 BC. Lisbon is known for Belém Tower, Jerónimos Monastery, Tram 28, among other attractions. The city's main transit system is the Lisbon Metro.
Lisbon is mainland Europe's westernmost capital city and the only European capital along the Atlantic coast.
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.
Often called "Alamo City", San Antonio has an area of 1,209 km² and is home to 1.4 million people. It was established in 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.
Lisbon has a population density of 5,500 people per km² — a densely populated city. San Antonio, with 1,183 people per km², is a relatively spread-out city. Lisbon is dramatically more crowded, with 4.6x the population density.
Size Ratio
Lisbon fits inside San Antonio ~12 times
Density Gap
Lisbon is 4.6x more densely populated
History
Lisbon is ~2,918 years older
Lisbon covers 100 km². Cities with a similar urban footprint include Barcelona (101 km²), Paris (105 km²), Copenhagen (91 km²), Zurich (88 km²), or Vancouver (115 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 Lisbon to San Antonio is 7,966 km (4,950 miles), with an estimated flight time of ~9h 52m.
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