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.
Maonan District is under the jurisdiction of Maoming City, Guangdong Province, which is located in the western part of Guangdong Province in the southwest of Guangdong Province. It is named because it is located in the south of Maoming County (now the main body belongs to Gaozhou City and Maonan District). It is located between 110 °44 east longitude, 110 °58 'east longitude and 21 °32-21 °49' north latitude, with Dianbai to the east, Wuchuan to the south, Huazhou to the west and Gaozhou to the north. The area has jurisdiction over 8 streets and 9 towns (Yangjiao Town is divided into Yangjiao Town in September 2017, with additional Chengnan streets), 133 village committees and 85 neighborhood committees (excluding Yangjiao Town), with a total area of 526 square kilometers (excluding Yangjiao Town). By the end of 2011, Maonan District had 33 ethnic groups and a population of more than 8,000 ethnic minorities. (note: unless otherwise stated, the population, area and other statistics of this entry