San Diego (/ˌsæn diˈeɪɡoʊ/ SAN dee-AY-goh, Spanish: [san ˈdjeɣo]; Spanish for 'Saint Didacus') is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States and the seat of San Diego County, the fifth most populous county in the United States, with 3,338,330 estimated residents as of 2019. The city is known for its mild year-round climate, natural deep-water harbor, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center. San Diego is the second largest city in the state of California, after Los Angeles.
Nanxi District, which belongs to Yibin City, Sichuan Province, is one of the municipal districts of Yibin City, located in the south of Sichuan Province, between longitude 104 °4332 "- 105 °5332" east and latitude 28 °41 "46"-29 °3 "52" north, covering an area of 704 square kilometers. Belongs to the subtropical humid monsoon climate, mild climate, abundant rainfall, suitable light, suitable for crop growth. By the end of 2018, Nanxi District has jurisdiction over 2 streets and 8 towns, and the district government is stationed in Nanxi Street. By the end of 2018, Nanxi District had a registered population of 430000. Emperor Wu of the Han Dynasty opened "Southwest Yi" in the sixth year of Jianyuan (135 BC) and set up a county. This county is located from Yudao County to Nanqi County. On March 17, 2011, Nanxi County was abolished and Nanxi District of Yibin City was established. Within the territory