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.
Lingao County, which belongs to Hainan Province, is located in the northwest of Hainan Island. Lingao County is located in the northwest of Hainan Island, located at 19 °34 degrees north latitude, 20 °02 degrees east longitude, 109 °3 degrees east longitude. It is bordered by Chengmai County to the east, Danzhou City to the southwest, Beibu Gulf to the northwest, Qiongzhou Strait to the north, and Leizhou Peninsula across the sea. The county government is stationed in Lincheng City, 83 kilometers away from the provincial capital Haikou City. The territory is 34 kilometers wide from east to west and 47 kilometers from north to south. The administrative area covers an area of 1317 square kilometers. The county seat is 82 kilometers away from the provincial capital Haikou. It has jurisdiction over 10 towns, 1 farm (Calais Farm), 2 development zones (Golden Port Economic Development Zone, Lingaojiao Tourism and Holiday Development Zone), 176village committees and 880 natural villages with a population of 515000 (as of 2018).