The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With 8,472 square miles (21,940 km2) and a population of more than 2.2 million people, it is the second-largest metropolitan area centered in Missouri (after Greater St. Louis) and is the largest metropolitan area in Kansas, though Wichita is the largest metropolitan area centered in Kansas. Alongside Kansas City, Missouri, these are the suburbs with populations above 100,000: Overland Park, Kansas; Kansas City, Kansas; Olathe, Kansas; Independence, Missouri; and Lee's Summit, Missouri.
Runan County, which belongs to Zhumadian City, Henan Province, faces Pingyu County in the east, Shangcai County in the north, Zhengyang County in the south and Linyi City in the west. It is between 114o 21km east longitude, 114o 53m east longitude and 33o 00km north latitude, with a total area of 1475 square kilometers. Runan is located in the Huaibei Plain with a history of nearly 2000 years. Han Gaozu bought Runan County, which was already a land and water wharf connecting the north and south of the Central Plains. There are more than 280 cultural sites in China, which have been approved as open counties by the State Council of China and designated as famous historical and cultural cities by the Henan provincial government. As of 2018, Runan County has jurisdiction over 4 streets, 12 towns and 2 townships. By the end of 2017, Runan County had a resident population of 658000, with a GDP of 19.61 billion yuan, of which