San Antonio is a city located in the U.S. state of Texas. It serves as the county seat of Bexar County.
The city is the seventh-most populous city in the United States and the second-most populous city in Texas, with a population of 1.43 million according to the 2020 census. Additionally, it ranks as the second-most populous city in the Southern U.S.
The Greater San Antonio metropolitan area has an estimated 2.76 million residents. This region ranks as the third-largest metropolitan area in Texas and the 24th-largest in the nation.