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.
Chengxi District, which belongs to Xining City, Qinghai Province, is located in the central and western part of Xining City, relying on the Nanchuan River to the east, facing the Xishui River to the north, and bordering Yuanzhong County and Chengnan New area to the southwest, with a total area of 82.4 square kilometers, six streets and one town, with a total population of 252700 (2014). There are 33 ethnic groups, including Han, Hui, Tibetan, Tu and Mongolian. In 2014, the gross domestic product (GDP) of Chengxi District reached 20.28 billion yuan. In the west of the city, there are Nanlianghutai ruins Park, Fahu Temple, Qinghai Provincial Museum, Xining Square, Xining people's Park and other scenic spots.