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.
Xichong County, which belongs to Nanchong City, Sichuan Province, is located in the north-east of Sichuan Basin, the southwest of Nanchong City, Shunqing District in the east, Jialing District in the south, Yanting County in Mianyang City, Pengxi County and Shehong County in Suining City in the west, and Nanbu County in the north. The total area is 1106.59 square kilometers, and the county seat is 25 kilometers away from Nanchong city in the north. There is Xichong Mountain in ancient times, so it is named Xichong, which is the ecological back garden and satellite city of Nanchong. Belongs to the subtropical humid monsoon climate zone, shallow hilly landform, the average annual temperature is 16.9 ℃, the annual rainfall is 980.8 mm, the average elevation is 361.2 meters, the frost-free period is more than 300 days, the four seasons are distinct, and the climate is mild. As of 2019, Xichong County has jurisdiction over 16 towns, 5 townships and 2 streets. By the end of 2017, the total population of Xichong County was 605900.