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.
Haizhu District is located in the middle of Guangzhou, adjacent to Liwan District, Yuexiu District and Tianhe District across the Pearl River in the north, and Huangpu District, Liwan District (including Fang Village) and Panyu District in the east, west and south, respectively, with a total area of 90.40 square kilometers. The main body of the area is Haizhu Island and Henan Island, as well as Guanzhou Island and Yajisha Island. In 2017, the GDP of Haizhu District reached 173.793 billion yuan, an increase of 7.6 percent at comparable prices, of which the added value of the primary industry was 63 million yuan, down 8.3 percent; the added value of the secondary industry was 24.736 billion yuan, up 39.2 percent; and the added value of the tertiary industry was 148.994 billion yuan, an increase of 2.5 percent. With an economic density of 1.922 billion yuan per square kilometer, it has jurisdiction over 18 administrative streets and 265 community neighborhood committees