San Antonio (/ˌsæn ænˈtoʊnioʊ/ SAN an-TOH-nee-oh; Spanish for "Saint Anthony"), officially the City of San Antonio, is a city in Texas, United States. The city is the seventh-most populous in the United States, the second-largest in the Southern United States, and the second-most populous in Texas. It is the 12th most-populous city in North America, with 1,434,625 residents in 2020.
Founded as a Spanish mission and colonial outpost in 1718, the city in 1731 became the first chartered civil settlement in what is now present-day Texas. The area was then part of the Spanish Empire. From 1821 to 1836, it was part of the Mexican Republic. It is the oldest municipality in Texas, having celebrated its 300th anniversary on May 1, 2018.
Zaduo County belongs to Yushu Tibetan Autonomous Prefecture of Qinghai Province, bordering Yushu and Nangqian counties in the east and southeast, Tanggula Mountain in the west, Dingqing, Baqing, Nierong, Suoxian and Anduo in Changdu and Naqu in the Tibet Autonomous region in the south and southwest, and Zhiduo County in the north. The area is 35000 square kilometers. At the end of 2014, the total population of the county was 62769, mainly Tibetans, including Han, Turkish, Hui, Mongolian and other ethnic groups. Zaduo County has Sanjiangyuan Nature Reserve, Ansai primeval forest, Zuoqing Temple and other tourist attractions. Zaduo County Postal Code: September 25, 8153992018, won the honorary title of "2018 e-commerce into rural comprehensive demonstration county" of the Ministry of Commerce.