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.
Wuerhe District, which belongs to Karamay City, Xinjiang Uygur Autonomous region, is located in the northwest of Xinjiang, on the northwest edge of Junggar Basin, bordered by Buxel Mongolia Autonomous County in the northeast, Toli County in the west, and Baiyan Beach in the southwest. Wuerhe District, with a total area of 2229.13 square kilometers, has jurisdiction over 2 townships (streets) and the district government is stationed on Willow Street. Wuerhe District has Xinjiang Oilfield Company Baikouquan Oil production Plant, Fengcheng Oilfield Operation area, Xinjiang Construction Corps Seventh Division 137 Regiment and other enterprises. In 2013, Wuerhe District achieved a GDP of 9.94 billion yuan.