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.
Jiangcheng District, located in the south of Yangjiang City, is one of the municipal districts of Yangjiang City, the resident of the municipal party committee and municipal government, and the political, economic, cultural, transportation and information center of Yangjiang City. It borders Yangxi County in the west, the eastern district of Yangyang in the east, Yangchun City in the north, the South China Sea in the south, the coastal low mountains and hills in the coastal hilly area, and faces the sea along the river. Belongs to the south subtropical marine climate, the average annual temperature is 22.5℃, the average annual precipitation is 2300 mm, the whole year is basically frost-free. The forest area is 15200 hectares, with a forest coverage rate of 19.2%. Jiangcheng is a dependency of Gaoliang County in ancient times. Since Wu Sunquan bought Gaoliang County in the first year of Wei and Huang Dynasty (AD 220) (except for the 58 years of Liu Song in the Southern Dynasty), it has been administered by counties, states and counties. In the second year of the great cause of the Sui Dynasty (AD 606), Yangjiang County was set up to transform the old Tucheng and the new brick and wood city after reconstruction.