Phoenix (/ˈfiːnɪks/ FEE-niks; Navajo: Hoozdo; Spanish: Fénix or Fínix,[citation needed] Walapai: Banyà:nyuwá) is the capital and most populous city of the U.S. state
of Arizona, with 1,608,139 residents as of 2020. It is the fifth-most populous city in the United States, and the only U.S. state capital with a population of more than one million residents.
Phoenix is the anchor of the Phoenix metropolitan area, also known as the Valley of the Sun, which in turn is part of the Salt River Valley. The metropolitan area is the 11th largest by population in the United States, with approximately 4.85 million people as of 2020. Phoenix, the seat of Maricopa County, has the largest area of all cities in Arizona, with an area of 517.9 square miles (1,341 km2), and is also the 11th largest city by area in the United States. It is the largest metropolitan area, both by population and size, of the Arizona Sun Corridor megaregion.
Yu'an District is the municipal district of Lu'an City. it is a new district established with the withdrawal of land and the establishment of the city in December 1999. Yu'an District is located in the west of Lu'an City, Jinan District in the east, Huoshan County in the south, Jinzhai County in the west and Shou County in the north. Yu'an District famous and special products are Liuangua tablets, Subu marijuana, Xuji peanut candy, etc.; scenic spots are Hengpaitou Scenic spot, Huanglian Temple, Jiugongzhai Scenic spot and so on. As of 2012, Yu'an District covers an area of 1926 square kilometers and has jurisdiction over 19 townships and 3 streets, with a registered population of 1002321. On September 25, 2018, he won the honorary title of "2018 e-commerce into rural comprehensive demonstration county" of the Ministry of Commerce. In March 2019, it was on the list of the first batch of revolutionary cultural relics protection and utilization districts and counties. April 29, 2019