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.
Lianshan District, located in the northeast of Huludao City, is a municipal district under the jurisdiction of Huludao City, Liaoning Province. It is a comprehensive administrative district with the integration of urban and rural areas established on the basis of the former Jinxi City (county level) approved by the State Council in 1989. It has jurisdiction over 16 rural townships, 9 urban subdistrict offices, 2 provincial development zones-Liaoning Province Poverty Alleviation Experimental Zone and Yangjiazhangzi Economic and technological Development Zone. The total area is 1651.4 square kilometers and the total population is 682200, of which the urban population is 300000 (2011). It is located at 120 °51 east longitude and 40 °45 north latitude, bordering Jinzhou Economic Development Zone, Linghai City and Taihe District of Jinzhou City in the east and northeast, Nanpiao District in the north, Xingcheng City in the south, Jianchang County and Chaoyang County in the west and northwest.