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.
Pengyang County, which belongs to Guyuan City, Ningxia Hui Autonomous region, is located in the southern edge of Ningxia Hui Autonomous region, the eastern foot of Liupan Mountain, between East longitude 106 °32 & #39;-106 °58 & #39;, North latitude 35 °4l & #39;-36 °17 & #39;. Yuanzhou District, Guyuan City, Ningxia in the west, Zhenyuan County, Qingyang City, Gansu Province in the east, south and north, Kongtong District, Pingliang City, Qingyang City, Huanxian County and other cities and counties. With an area of 2528.65 square kilometers, it has jurisdiction over 4 towns, 8 townships and 156 administrative villages, with a total registered population of 251300, of which the rural population is 190000, accounting for 75.59%; the Hui nationality is 77300, accounting for 30.74%, and the population density is 99.21 people per square kilometer.