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.
Jin'an District, a municipal district of Lu'an City, was established in September 1999. It belongs to the main urban area of Lu'an City. It is not only the political, economic and cultural center of Lu'an City, but also an important part of the national Wanjiang City Belt Industrial transfer demonstration Zone and Hefei Economic Circle. Jin'an District is located in the east of Lu'an City, the provincial capital Hefei in the east, Shou County in the north, Shucheng County in the south and Yu'an District in the west. The famous and special products of Jin'an District are mainly Liuangua tablets, Wanxi White Goose, Yipinzhai brush and so on; the scenic spots are mainly West Anhui Rift Valley, Maotanchang Old Street, Dongtian Lake and so on. As of 2011, Jin'an District covers an area of 1657 square kilometers and has jurisdiction over 5 streets, 11 towns and 6 townships with a total population of 851993. In March 2019, it was on the list of the first batch of revolutionary cultural relics protection and utilization districts and counties. April 29, 2019