How Big Is San Antonio?

United States

Area

1,209 km²

467 mi²

Population

1.4M

Density

1,183/km²

Founded

1718

San Antonio Size Overview

San Antonio covers an area of 1,209 km² (467 mi²) in United States. City in Texas, United States. The city is often called "Alamo City". To put this in perspective, San Antonio is about 1.3x smaller than London. In more relatable units, that's about 169,000 American football fields, 20 times the area of Manhattan, or 11 times the area of Paris.

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.

With a population of 1.4 million, San Antonio has a population density of 1,183 people per km².

San Antonio has a history stretching back to 1718. The city is renowned for The Alamo, San Antonio River Walk, Tower of the Americas, and Mission San Jose.

Did You Know?

  • San Antonio is the seventh-most populous city in the United States and second-most populous in Texas, with 1.43 million residents.
  • Founded in 1718, it serves as the county seat of Bexar County and anchors the 24th-largest metro area in the nation.

Cities Similar in Size to San Antonio

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).

Frequently Asked Questions about San Antonio

How big is San Antonio in square miles?
San Antonio covers 1,209 km², which is approximately 467 square miles.
What is the population of San Antonio?
San Antonio has a population of approximately 1.4 million people.
What is the population density of San Antonio?
San Antonio has a population density of 1,183 people per km² (3,064 per mi²).
Can I compare San Antonio with other cities on a map?
Yes! City Map Compare lets you compare San Antonio with any of 50+ cities side by side on synchronized maps. Both maps maintain the same zoom level so you can see the real difference in size.