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.
Wuyi County is under the jurisdiction of Hengshui City, Hebei Province, located in the southeast of Hebei Province, northeast of Hengshui City, Fucheng County, Jingxian County, Taocheng District and Shenzhou City to the east, Zaoqiang County to the south and Wuqiang County to the north. It is located within the radiation range of Beijing-Tianjin urban economic circle and port-adjacent economic radius, adjacent to Botou City in the northeast, 27km wide from east to west, 42.5km from north to south, with a total area of 830.1 square kilometers. Wuyi County has jurisdiction over 7 towns, 2 townships and 1 district, with a total population of 355000 (2012). It was identified as a national key county for poverty alleviation by the State Council in 1994, was listed as a key county for poverty alleviation and development by the State Council in 2001, and was named "the hometown of vegetables in Hebei" in 2002. On September 29, 2018, the people's Government of Hebei Province issued a notice formally approving Wuyi County to withdraw from poverty.