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.
Xunyang County is located in the southeast of Shaanxi Province, in the eastern part of Qinba Mountains, between longitude 103 °58'to 109 °48 'east and latitude 32 °29' to 33 °13 'north. It is bordered by Baihe County and Yunxi County in Hubei Province to the east, Pingli County to the south, Zhushan County and Zhuxi County in Hubei Province to the south, Hanbin District to the west, and Zhenan County and Yunxi County in Hubei Province to the north. The county is about 82 kilometers from north to south, 79 kilometers from east to west and 390 kilometers from east to west. The county seat is located at the confluence of the Han River and Xunhe River. the new urban area extends upward for several kilometers along the west bank of the Xunhe River. The northern section is the old city of the county seat, and the place where the Xunhe River enters the Han River is in the shape of "S", so it is also called "Taiji City". The Xiang-Yu Railway has set up a station in the Liuwan community in the northwest of the county, which runs 1518 kilometers from Xiangyang, Zhengzhou and Shijiazhuang to the west of Beijing and west to Chengdu via Ankang and Dazhou.