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 both Texas and the Southern U.S. According to the 2020 census, San Antonio has a population of 1.43 million residents. The Greater San Antonio metropolitan area has an estimated population of 2.76 million, ranking as the third-largest metropolitan area in Texas and the 24th-largest in the nation.