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.
Sakya County, which belongs to Xigaze City, Tibet Autonomous region, is located in the south of Tibet Autonomous region, the central part of Xigaze City and the south bank of the Brahmaputra River. It is bordered by Xigaze City and Bailang County in the east, Dingjie and Gangba counties in the south, Lazi and Dingri in the west, and Xietongmen in the north. The county seat is 150 kilometers away from Xigaze City. The total area is 7510 square kilometers (2010). By the end of 2010, the total population of Sakya County was 47304, of which the non-agricultural population was 5720, accounting for 3.59% of the total population of the county. Sakya County is located between the Himalayas and the Gangdise Mountains, high in the north and south and low in the middle. The highest peak in the territory is 6092 meters above sea level. There are Chongqu River, Shabuqu River and other rivers. Belongs to the plateau temperate semi-arid monsoon climate. The frost-free period is about 110 days, and the average annual temperature is 5 min 6.