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.
Taiqian County, under the jurisdiction of Puyang City, Henan Province, is located in the northeast of Henan Province, at the junction of Henan and Shandong provinces, with a total area of 454 square kilometers. It now has jurisdiction over 6 towns, 3 townships, 372 administrative villages, 376400 people and 270000 mu of arable land. Taiqian County is an old revolutionary base, a national key county for poverty alleviation and development, and an important part of the Pufantai comprehensive experimental area for poverty alleviation and development in the Central Plains Economic Zone. In 2012, it was named "the hometown of China's down". The geographical location is special. Taiqian County is bordered by or across the river from six counties in Shandong Province (Shenxian, Yanggu, Dongping, Liangshan, Yuncheng and Juancheng). It is 40.4 km long from east to west and 15.5 km wide from north to south. It is the northeast gateway of Henan Province. Connected to the Central Plains Economic Zone in the west and the Bohai Economic Circle in the east, Henan Province is away from Tianjin Port, Qingdao Port and Lianyun.