Chula Vista (; )</ref> is the second-largest city in the San Diego metropolitan area, the seventh largest city in Southern California, the fifteenth largest city in the state of California, and the 75th-largest city in the United States. The population was 243,916 as of the 2010 census, and the estimated population as of 2019 is 274,492. Located about halfway——between the two downtowns of San Diego and Tijuana in the South Bay, the city is at the center of one of the richest culturally diverse zones in the United States. Chula Vista is so named because of its scenic location between the San Diego Bay and coastal mountain foothills.