San Antonio is a city located in the U.S. state of Texas. It serves as the county seat of Bexar County and is characterized by its significant population size within the region.
According to the 2020 census, San Antonio had a population of 1.43 million people, making it the seventh-most populous city in the United States. It ranks as the second-most populous city in both Texas and the Southern U.S. The Greater San Antonio metropolitan area has an estimated 2.76 million residents, ranking as the third-largest metropolitan area in Texas and the 24th-largest in the nation.