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.
Burjin County, which belongs to Altay, is located in the north of Xinjiang Uygur Autonomous region, at the southwest foot of Altai Mountains, along the northern edge of Junggar Basin, bordering Kazakhstan, Russia and Mongolia in the north and northeast. It is one of the two counties bordering Russia in western China (the other is Habahe County). The national boundary is 218 kilometers long and there are many rivers in the country. it is a necessary place for import and export of the two border trade ports in northwest Xinjiang. An ideal port on the border with Russia is of great development value. it is the only nearest channel to open economic and trade exchanges between Northwest China and Russia, and the largest tributary of the Ertix River, the only Arctic water system in China. It is adjacent to Mongolia in the northeast, Altay to the east, Habahe County to the west, Jimunai County and Fuhai County to the south. At the end of 2011, the total population of Burjin County