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.
Zaduo County belongs to Yushu Tibetan Autonomous Prefecture of Qinghai Province, bordering Yushu and Nangqian counties in the east and southeast, Tanggula Mountain in the west, Dingqing, Baqing, Nierong, Suoxian and Anduo in Changdu and Naqu in the Tibet Autonomous region in the south and southwest, and Zhiduo County in the north. The area is 35000 square kilometers. At the end of 2014, the total population of the county was 62769, mainly Tibetans, including Han, Turkish, Hui, Mongolian and other ethnic groups. Zaduo County has Sanjiangyuan Nature Reserve, Ansai primeval forest, Zuoqing Temple and other tourist attractions. Zaduo County Postal Code: September 25, 8153992018, won the honorary title of "2018 e-commerce into rural comprehensive demonstration county" of the Ministry of Commerce.