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.
Yining County, which belongs to Yili Kazakh Autonomous Prefecture of Xinjiang Uygur Autonomous region, is located in the west of Xinjiang Uygur Autonomous region, the western part of Tianshan Mountain and the middle of Yili River Valley. The geographical coordinates are 81 °13 °40 "- 82 °42" 20 "east longitude and 43 °35" 10 "- 44 °29" 30 "north latitude. The county has the longest east-west distance of 116km and the widest north-south distance of 95 km, with a total area of 6152.55 square kilometers. by the end of 2017, Yining County has jurisdiction over 8 towns and 10 townships, as well as 3 farm-level units with a total population of 430690. Yining County, formerly known as Ningyuan County, was founded in the 14th year of Guang Xu in the Qing Dynasty (1888). It got its name from the county governance of Ningyuan. In 1913, it was changed to Yining County and got its name from the first words Yili and Ningyuan.