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.
Shuangbai County is a county under the jurisdiction of Chuxiong Autonomous Prefecture, Yunnan Province, built in the Western Han Dynasty, ancient Yizhou County, under the jurisdiction of Yimen, Shuangbai County and Xinping County in the northwest. It is located in the hinterland of central Yunnan, east of the Ailao Mountains, 58 kilometers away from Chuxiong, the state capital, and 210 kilometers away from Kunming, the capital of Yunnan. In 2011, Shuangbai County has jurisdiction over 5 towns, 3 townships, 84 village committees, 1540 villagers' groups and 1845 natural villages, with a total area of 4045 square kilometers. There is not a complete flat dam of one square kilometer in Shuangbai County, and the mountain area accounts for 99.7% of the land area. At the end of 2011, Shuangbai County has a total population of 159700, of which the agricultural population accounts for 89.2%. There are 18 ethnic groups living in the territory, including Han, Yi, Hui, Miao and Hani. In 2011, Shuangbai County realized 1.64 billion yuan of regional GDP and completed local wealth.