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.
Naxi District, which belongs to Luzhou City, Sichuan Province, is located in the south of Sichuan Basin, south of the Yangtze River, on both sides of the lower reaches of the Yongning River, between longitude 105 °09 to 105 °37 east, latitude 28 °02 to 14 "to 28 °26 to 53", Hejiang County to the east, Xuyong County to the south, Jiangan County, Yibin City to the west, and Jiangyang District to the north. Naxi District covers an area of 1150.6 square kilometers and has jurisdiction over 12 towns and 3 streets; the total population is 470647 (2016). In 2016, the region's gross domestic product (GDP) reached 13.53385 billion yuan, and the per capita disposable income of urban residents reached 29818 yuan. The topography of Naxi is high in the south and low in the north, with both Pingba, hills and low mountains, with an elevation of 230 to 963.2 meters above sea level, belonging to subtropical humidity.