Which of these cities is not in California?

San Antonio is the seventh-most populous city in the United States, and the second-most populous city in both Texas and the Southern United States, with more than 1.5 million residents. n 1691, a group of Spanish explorers and missionaries came upon the river and Payaya settlement on June 13, the feast day of St. Anthony of Padua. They named the place and river "San Antonio" in his honor.