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.
Lingtai County is an escrow county of Pingliang City, Gansu Province, located in the southeast of Gansu Province, bordering Changwu, Bin County, Linyou, Qianyang and Longxian of Shaanxi Province in the southeast, and Chongxin and Jingchuan County of Gansu Province in the northwest. The geographical coordinates are 107 °00 east longitude 107 °57km east longitude, 34 °54km north latitude, 35 °14km north latitude, 78 km east-west length, 40 km north-south width, and a total area of 2038 square kilometers. As of 2012, Lingtai County has jurisdiction over 5 towns, 8 townships, 1 street, a total of 4 communities, 1429 administrative villages and 1429 village groups, with a total population of 229752, most of whom are Han nationality, accounting for 96.7%. Ethnic minorities are Hui, Tibetan, Manchu, Miao, Mongolian and so on, accounting for 3.3%. In 2012, Lingtai County realized the regional gross domestic product (G