Oklahoma City (/oʊkləˌhoʊmə -/ (listen)), officially the City of Oklahoma City, and often shortened to OKC, is the capital and largest city of the U.S. state of Oklahoma. The county seat of Oklahoma County, it ranks 20th among United States cities in population, and is the 8th largest city in the Southern United States. The population grew following the 2010 census and reached 687,725 in the 2020 census. The Oklahoma City metropolitan area had a population of 1,396,445, and the Oklahoma City–Shawnee Combined Statistical Area had a population of 1,469,124, making it Oklahoma's largest municipality and metropolitan area by population.
Oklahoma City's city limits extend somewhat into Canadian, Cleveland, and Pottawatomie counties, though much of those areas outside the core Oklahoma County area are suburban tracts or protected rural zones (watershed). The city is the eighth-largest in the United States by area including consolidated city-counties; it is the second-largest, after Houston, not including consolidated cities. The city is also the second largest by area among state capital cities in the United States, after Juneau, Alaska.
Jingde County, belonging to Xuancheng City, Anhui Province, belongs to Youzhou in ancient times. It is located in the hinterland of southern Anhui, relying on Huangshan in the west, Jiangsu, Zhejiang and Shanghai in the east, and Wanjiang in the north. It was built in the second year of Tang Baoying (763), and the name of the county came from "showing Fangde". By the end of 2017, Jingde County had jurisdiction over 10 towns, with a resident population of 125000, with a total area of 904.8 square kilometers. Jingde County has excellent ecology. In 2018, the county has a forest area of 750000 mu, with a forest coverage rate of 66%. It is a state-level ecological county, a national key ecological functional area, the core area of the international cultural tourism demonstration zone in southern Anhui, and one of the important channels for the Yangtze River Delta to enter the Huangshan Scenic area. Jingde traffic is convenient, the territory of 205 National Highway, 217 Provincial Highway, 323 Provincial Highway and other important roads crisscross. Hongmen Interchange Project of Yangji Expressway has been completed and opened to traffic. Wuhuang