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.
Jishishan Baoan Dongxiang Salar Autonomous County, which belongs to Linxia Hui Autonomous Prefecture of Gansu Province, is the only multi-ethnic autonomous county in Gansu Province. it is located in the southwest of Gansu Province, at the eastern foot of Xiaojishi Mountain in the northwest corner of Linxia Prefecture, between longitude 120 °41 east and latitude 35 °34, bordering Linxia County in the southeast, Xunhua Salar Autonomous County in Qinghai Province in the west, and Minhe County in Qinghai Province in the north. The northeast and Yongjing County are bounded by the Yellow River, with a width of about 33 kilometers from north to south and 37 kilometers from east to west, with a total area of 909.97 square kilometers. As of 2011, Jishishan Baoan Dongxiang Salar Autonomous County has jurisdiction over 4 towns, 13 townships, 145 administrative villages, 6 communities and 1296 village groups, with a total population of 25. 5%.