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.
Mianxian, a county under the jurisdiction of Hanzhong City, Shaanxi Province, is located in the south of Shaanxi Province, the western end of Hanzhong Basin, Qinling Mountains in the north, Nanyuan Ba Mountain, Juchuan, Shaanxi and Ganzhong. The county has jurisdiction over 19 towns and 242administrative villages, with an area of 2406 square kilometers and a total population of 428100 (2014). Mianxian County is rich in resources, unique biological resources, warm and humid climate, the largest tributary of the Yangtze River runs through the whole territory, the basin beads in the territory, and the forest coverage rate reaches 58%. Mianxian County, with large reserves and high grade of mineral resources, is located in the "Mianluoning" Golden Triangle and is praised as the "Ural" of Asia by geologist Li Siguang. It is an important metallurgical and chemical industry base in Hanzhong City, Shaanxi Province. September 25, 2018, won the honor of "2018 e-commerce into the rural comprehensive demonstration county" of the Ministry of Commerce.