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.
Gujiao City is a county-level city hosted by Taiyuan City, Shanxi Province, located in the northwest of Taiyuan City, Shanxi Province. It is not only the national coking coal production base, but also the transportation hub and commodity distribution center at the eastern foot of Luliang Mountain, connecting the provincial capital Taiyuan and the modern industrial and mining cities in the northwest of Shanxi Province. Gujiao City is located between latitude 37 °40 "6" to 38 °8 "N, longitude 111 °43" 8 "to 112 °21 °5" east, 50 km from east to west and 53 km from north to south. It is located in the west of Taiyuan Basin, the east wing of Guandi Mountain, the main peak of Luliang Mountains, the southern end of Yunzhong Mountain, Wanbailin District of Taiyuan City in the east, Loufan County in the west, Jiaocheng County and Qingxu County in the south, Yangqu County and Jingle County in the north, and Jingle County in the north, with a land area of 1542.59 square kilometers. As of 2018, Gujiao had jurisdiction over 4 streets, 3 towns and 7