Memphis is a city in the U.S. state of Tennessee. It is the seat of Shelby County in the southwest part of the state; it is situated along the Mississippi River. With a population of 633,104 at the 2020 U.S. census, Memphis is the second-most populous city in Tennessee, after Nashville.
Memphis is the fifth-most populous city in the Southeast, the nation's 28th-largest overall, as well as the largest city bordering the Mississippi River. The Memphis metropolitan area includes West Tennessee and the greater Mid-South region, which includes portions of neighboring Arkansas, Mississippi and the Missouri Bootheel. One of the more historic and culturally significant cities of the Southern United States, Memphis has a wide variety of landscapes and distinct neighborhoods.
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.