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.
Zheng'an County is the lower jurisdiction county of Zunyi City, Guizhou Province, which is located in the northeast of Zunyi City. It is the frontier of Chongqing and the important economic and cultural intersection area of southern Chongqing and northern Guizhou. It is known as the "gateway to northern Guizhou". Zheng'an County is located in the north of Guizhou Province, bordering Nanchuan District of Chongqing to the north, Daozhen County and Wuchuan County in the northeast, Fenggang County and Meitan County in the southeast, Suiyang County in the south and Tongzi County in the northwest. In 2017, Zheng'an County achieved a regional GDP of 10.06382 billion yuan, of which the added value of the primary industry was 2.86398 billion yuan, the secondary industry was 2.221 billion yuan, and the tertiary industry was 4.97884 billion yuan. The proportion of the three industrial structures in the gross domestic product is 28.4% in the primary industry, 22.1% in the secondary industry and 22.1% in the tertiary industry.