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.
Mengzhou City, which belongs to Jiaozuo City, Henan Province, is in charge of county-level cities for Jiaozuo City. It is located in the northwest of Henan Province, with Taihang in the north and the Yellow River in the south. The geographical coordinates are longitude 112 °33-112 °55 east and latitude 34 °50-35 °02 'north. With a total area of 541.6 square kilometers, it has jurisdiction over 4 streets, 6 towns and 1 township, with a population of 400000. In 2016, the city's GDP reached 28.87 billion yuan, an increase of 8.5 percent over the same period last year. Mengzhou is the hometown of Han Yu, the head of the eight masters of the Tang and Song dynasties. The main tourist attractions are: Hanyuan, hometown Mogou, Yellow River Wetland, Gucheng Lake, Baiqiang Reservoir, Jinshan Temple, Riverside Park and so on. Specialties are: four Huaiyao (Rehmannia glutinosa, yam, chrysanthemum, Achyranthes bidentata), apple, sheep shearing and products, wheat straw