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.
Qiaojia County is located in the northeast of Yunnan Province and the southwest of Zhaotong City, with geographical coordinates of 26 °32 °N, 27 °25 °N and 102 °52 °E, 103 °26'E. Qiaojia County borders Huize County of Qujing City in the east, Dongchuan District of Kunming City in the south, Liangshan Prefecture East, Ningnan, Butuo and Jinyang in Sichuan Province in the west, and Zhaoyang District and Ludian County in Zhaotong City across the Niulan River in the north. It is located in the heart of Yunnan and Sichuan provinces. The county covers an area of 3245 square kilometers, with a width of about 57 kilometers from east to west and 98 kilometers from north to south. Qiaojia County people's Government is stationed in Baihetan Town, which is 268 kilometers away from the provincial capital Kunming, 151 kilometers from Zhaotong and 169 kilometers from Xichang, Sichuan.