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.
Longchang is a county-level city hosted by Neijiang City in Sichuan Province, which is located in the southeast of Sichuan Province and the southern end of Neijiang City. The ground span ranges from 105 degrees 02 to 105 degrees 26 degrees east longitude and from 29 degrees 11 to 29 degrees 32 degrees north latitude. It is adjacent to Rongchang District of Chongqing City in the east, Lu County of Luzhou City in the south, Fushun County of Zigong City and Daan District of Zigong City in the west, Dongxing District in the north, 210 kilometers away from Chengdu and 138 kilometers away from Chongqing. Longchang covers an area of 794.41 square kilometers; it has jurisdiction over 2 streets and 13 towns; it has a total population of 778000 in 2015; in 2015, Longchang achieved a GDP of 23.3 billion yuan and a per capita GDP of 36096 yuan. Belongs to the subtropical humid monsoon climate, the annual average temperature is 17.7 ℃, the frost-free period is 324 days, and the annual rainfall is 10%.