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.
Nanchong, also known as "Guocheng, Silk Capital", is a prefecture-level city in Sichuan Province and the second most populous city in Sichuan. Provincial economic deputy central city, one of the central cities of Chengdu-Chongqing economic circle, important node city of "Belt and Road Initiative" strategy, regional central city of northeast Sichuan, excellent tourist city of China, national garden city, national clean energy demonstration city, one of the top 200 cities with dense belt of southern Suigang cities and towns, and one of the top 200 charming cities with Chinese characteristics. Nanchong is located in the northeast of Sichuan Province and the middle reaches of the Jialing River, which is named because it is located in the south of the country; it has jurisdiction over 3 districts (Shunqing District, Gaoping District, Jialing District), 5 counties (Yingshan County, Xichong County, Nanbu County, Pengan County, Yilong County), escrow one county-level city (Langzhong City), household registration population 7.5902 million (2014), and an area of 12479.96k square.