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.
Wangqing County belongs to Yanbian Korean Autonomous Prefecture of Jilin Province. Its geographical location is between 129 °51 Mel 130 °56'E and 43 °06 Mel 44 °03'N. It is bordered by Hunchun City in the east, Dunhua City in the west, Tumen City and Yanji City in the south, and Ning'an, Muling and Dongning counties in Heilongjiang Province in the north. The north-south length is 108 kilometers, and the east-west horizontal distance is 152 kilometers. Wangqing County has jurisdiction over 8 towns and 1 township. Wangqing County is 40 kilometers from the Russian border and 18 kilometers from the North Korean border. Wang Qing is located in the foothills of Changbai Mountain, which belongs to the mountain area, with an average elevation of 806 meters. It belongs to the continental mid-temperate windy climate, with long winter and short summer, four distinct seasons and great vertical variation. The annual average temperature is 3.9mm, the annual average rainfall is 580mm, the frost-free period is 110141days, and the annual sunshine.