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.
Zhengning County, which belongs to Qingyang City, Gansu Province, is located in the southeast of Qingyang City, Gansu Province, at the west foot of Ziwuling, east and Huangling County of Shaanxi Province, bounded by Ziwuling County in the east, Xunyi County in Shaanxi Province in the south, Bin County in Shaanxi Province in the southwest, Jinghe County in Shaanxi Province in the west and Ning County in Gansu Province in the north, with geographical coordinates of 35 °14 °40 "- 35 °36 °18" N and 107 °56 °20 "- 108 °38 °08" E The county covers an area of 1330.9648 square kilometers. Zhengning County has jurisdiction over 4 towns and 6 townships (at the end of 2011), with 7 communities, 94 villages and 677 village groups, with a total population of 239600 (2012). In 2012, Zhengning County achieved a gross domestic product (GDP) of 2.134 billion yuan, compared with 201.