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.
Huangzhong District is a district under the jurisdiction of Xining City, Qinghai Province. it is located in the east of Qinghai Province, bordering Huangyuan County of Xining City to the west, and bordering on the south, north and east, respectively, adjacent to the middle of the city, north of the city, west of the city and east of the city. The geographical coordinates are 36 °13 °32 "~ 37 °03 °19" east longitude 101 °09 32 "~ 101 °54 square kilometers, with a total area of 2700 square kilometers. As of 2018, Huangzhong District has jurisdiction over 1 street, 10 towns, 5 townships, and another township-level unit: Ganhe Industrial Park. By the beginning of 2019, the region has a resident population of 460100, which is a large population area in Qinghai. There are 13 ethnic minorities, including Hui, Tibet, Turkey and Mongolia. In 2011, the gross domestic product (GDP) of Huangzhong District reached 12.445 billion yuan.