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.
Xihua County is located in the east of Henan Province, under the jurisdiction of Zhoukou City. Total area of 1194 square kilometers, arable land area of 1.1 million mu, jurisdiction over 18 townships, 3 agricultural and forestry farms, household registration population of 920000 (2013). Xihua Han County, known as Xihua, Changping, Jicheng, Gonggou and so on, has been renamed Xihua since the Tang Dynasty. The ruins of Nuwa City are the key cultural relics protection units in Henan Province. Xihua has been awarded the demonstration county of national drinking water safety project, the advanced county of national agricultural technology popularization, the forestry ecological county of the whole province, the double support model county of the whole province, and the advanced county of safe construction of the whole province, and has won the "Red Flag Canal Spirit Cup" of the whole province for five consecutive years. On January 25, 2019, he was selected as the national "Ping an Agricultural Machinery" demonstration county in 2018. On May 9, 2019, after special evaluation and inspection at the provincial level, it reached the hat standard for poverty alleviation.