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.
Shawan District, which belongs to Leshan City, Sichuan Province, is located in the lower reaches of the Dadu River, the transitional zone between Daxiaoliangshan and Sichuan Basin, between latitude 29 °11 "18" ~ 29 °31 "30" north, longitude 103 °25 °13 "~ 103 °44 °10" east, central district of Leshan City in the north, Muchuan County and Ebian Yi Autonomous County in the south, Wutongqiao District and Jianwei County in the east, and Emeishan City in the west. It covers an area of 610.89 square kilometers and has a registered population of 182300. Under the jurisdiction of 8 towns, 5 townships, 1 street, 127 villages and 21 communities, the district government is located at 95 Desheng Avenue, Shawan Town. Shawan District was called "Nanling" in ancient times, because the Southern Song Dynasty poet Fan Chengda commented that "Nanling" is located in "Lingshan Xiushui, Shaan Bay Ring". In the first year of Tianbao (AD 742), Tongshan Town was set up in Tongjiezi.