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.
Zengcheng District is a municipal district of Guangzhou, located in the east-central part of Guangdong Province and the east of Guangzhou, facing Dongguan in the south, Huizhou in the east and Conghua in the north. As of the end of 2017, it covers an area of 1616.47 square kilometers and has a resident population of 1.41 million. It has a state-level economic and technological development zone and "overseas Chinese Mengyuan", the fifth national industrial gathering area for overseas Chinese businessmen. Zengcheng County was built in the Eastern Han Dynasty Jian'an six years (2018), belonging to Nanhai County, because Nanhai County originally under the jurisdiction of six counties, a new county, an additional city, so it is called "Zengcheng". In 1993, counties were removed to set up cities, and in February 2014, cities were withdrawn to set up districts. It has jurisdiction over 4 subdistrict offices, 7 towns, 282 administrative villages and 55 communities with a population of 890800. The Zengcheng Economic and technological Development Zone within its jurisdiction is one of the three national development zones in Guangzhou.