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.
Qingcheng County, which belongs to Qingyang City, Gansu Province, is located in the east of Gansu Province, the middle and upper reaches of Malian River, Heshui in the east, Puhe River in the west, Zhenyuan County in the west, Xifeng District in the south and Huanxian County and Huachi in the north. The geographical coordinates are 107 °16 "32"-108 °05 "49" east and 35 °42 "29"-36 °17 "22" north. It is about 70 kilometers from east to west and 56 kilometers from north to south. The total land area is 2692.6 square kilometers. Qingcheng County has jurisdiction over 5 towns and 10 townships (2011), with a total population of 320000 (2011). In 2011, the gross national product (GDP) of Qingcheng County reached 6.53 billion yuan, an increase of 13.8% over 2010 in terms of comparable prices. According to the public security population