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.
The suburb, which belongs to Yangquan City, Shanxi Province, is located in the eastern part of Shanxi Province and at the western foot of the middle part of Taihang Mountain. It is located at latitude 37 °47 "38 °05" north and longitude 113 °19 "113 °43 'east. It is connected with Pingding County in the east and south, Shouyang County in the west and Yu County in the north, and surrounds the urban area and mining area of Yangquan City. The suburbs have jurisdiction over 4 towns and 4 townships, with a total area of 616.89 square kilometers and a resident population of 237000 (2012). In 2012, the GDP of suburban areas was 7.16589 billion yuan, an increase of 9.7% over 2011. The suburbs have the earliest existing tourist attractions such as the Guanwang Temple in Yuquan Mountain in the Song Dynasty, the Silver Garden Villa in the Qing Dynasty, and the former residence of the famous modern female writer Shi Pingmei.