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.
Chengxiang District (Putian County, Xinghua Prefecture) is under the jurisdiction of Putian City, Fujian Province, also known as Licheng, located in the middle of the coast of Fujian Province, the urban center of Putian, the central part of Xinghua Plain, the west bank of the Taiwan Strait and Meizhou Bay in the south. Relying on the provincial capitals Fuzhou and Mawei in the north, Rongqiao Development Zone in the east and Meizhou Bay Development Zone in the east, it is a political, economic, cultural, educational, scientific and technological center and transportation hub of Putian City, covering an area of 509square kilometers. Chengxiang District is one of the coastal counties approved by the State Council in 1984. According to information in December 2016, Chengxiang District has jurisdiction over 3 streets and 4 towns, with a total population of 405496 in 2015. The city belongs to the south subtropical marine monsoon climate, with an annual average temperature of 20 ℃ and an annual average sunshine of 1947 hours. 2015, city compartment