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.
Zhiduo County is a county under the jurisdiction of Yushu Tibetan Autonomous Prefecture in Qinghai Province, which is located in the southwest of the province, the central and western part of the state border, and bordered by Xinjiang and Tibet Autonomous region in the west. The county government is stationed in Jiaji Borough (in Duocai Township). The county is bordered by Yushu County in the east, Hercynian escrow District in the west, Qumalai County and Haixi County in the north, and Zaduo County in the south. 921 kilometers away from the provincial capital Xining, 195 miles from the state capital, 109 National Highway and Qinghai-Tibet Railway pass through the waist. By the end of 2007, the total population of the county had reached 28200, mainly Tibetans, accounting for 97.8% of the total population, as well as Han, Hui, Qala and other ethnic groups. The total land area is 80200 square kilometers and it has jurisdiction over 6 townships. In 2007, the county's GDP reached 208.587 million yuan. On December 29th, 2018, Zhiduo County was killed.