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.
Xiangcheng, located in the southeast of Henan Province, Zhoukou City under the jurisdiction of county-level cities, located in the south of the Yellow River alluvial plain, the main tributary of the Huaihe River in the middle reaches of the Shaying River. Located at the junction of Henan and Anhui provinces, Da-Guang Expressway and Ningluo Expressway meet in the urban area, 106 National Highway and 5 provincial highways cross the whole territory, Luofu Railway connects Jingguang and Jingjiu, and Shaying River shipping runs directly to the Yangtze River. it is a better meeting point of people flow, material flow, capital flow and information flow in southeast Henan. In 2018, the city's GDP reached 33.991 billion yuan, an increase of 8.7% over the same period last year. Xiangcheng's industrial system, which is supported by monosodium glutamate, leather, medicine and textile, is the largest handmade shoe production base in China, the location of China's famous lotus monosodium glutamate, and the nearest waterway city in the central and western regions to the Yangtze River Delta. In 2011, he won the "Best Investment City in China" and "medium".