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.
Hami, one of the four prefecture-level cities in Xinjiang Uygur Autonomous region, is based in Yizhou District. Located in the east of Xinjiang, it is the main road from Xinjiang to the mainland of China. It has been the throat of the Silk Road since ancient times. It is known as "Western region flap throat, Chinese Arch Guard" and "Xinjiang Portal". It is adjacent to Jiuquan City, Gansu Province in the east, Bayinguoleng Mongolia Autonomous Prefecture in the south, Turpan City and Changji Hui Autonomous Prefecture in the west, and Mongolia in the north. Laoyemiao Port is one of the important open ports for the development of border trade between Xinjiang and Mongolia. As of 2016, Hami has a vast territory, a small population (619700) and a relatively high level of urbanization, with jurisdiction over Yizhou District, Balikun Kazakh Autonomous County and Yiwu County. In 2013, Hami achieved a gross domestic product of 334.