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.
Nanxi District, which belongs to Yibin City, Sichuan Province, is one of the municipal districts of Yibin City, located in the south of Sichuan Province, between longitude 104 °4332 "- 105 °5332" east and latitude 28 °41 "46"-29 °3 "52" north, covering an area of 704 square kilometers. Belongs to the subtropical humid monsoon climate, mild climate, abundant rainfall, suitable light, suitable for crop growth. By the end of 2018, Nanxi District has jurisdiction over 2 streets and 8 towns, and the district government is stationed in Nanxi Street. By the end of 2018, Nanxi District had a registered population of 430000. Emperor Wu of the Han Dynasty opened "Southwest Yi" in the sixth year of Jianyuan (135 BC) and set up a county. This county is located from Yudao County to Nanqi County. On March 17, 2011, Nanxi County was abolished and Nanxi District of Yibin City was established. Within the territory