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.
Renbu County is located in the south of Tibet Autonomous region and the east of Xigaze City, with geographical coordinates between 89 °45 "~ 90 °22" east longitude and 29 °02 "~ 29 °30" north latitude. Langkazi County, Shannan City in the east, Jiangzi County in the south, Sangzhuzi District and Nanmulin County in Xigaze City in the west, and Nimu County in Lhasa City in the north. 130 kilometers from Xigaze City. With a total area of 2122.82 square kilometers, in 2013, the total population was 31000. Renbu County is located between the Gangdise Mountains and the Himalayas, with high mountains and deep valleys, undulating mountains, ravines and rivers, with an average elevation of about 3950 meters. The main rivers are the Yarlung Zangbo River, and its tributaries Chaqu, Zhaqu and so on. It belongs to the temperate semi-arid plateau monsoon climate. In 2013, the total GDP of Renbu County was 975.