Memphis is a city in the southwestern corner of the U.S. state of Tennessee, and the county seat of Shelby County. The city is located on the 4th Chickasaw Bluff, south of the confluence of the Wolf and Mississippi rivers.Memphis had a population of 655,155 in 2012, making it the largest city in the state of Tennessee, the largest city on the Mississippi River, the third largest in the Southeastern United States, and the 20th largest in the United States. The greater Memphis metropolitan area, including adjacent counties in Mississippi and Arkansas, had a 2010 population of 1,316,100. This makes Memphis the second-largest metropolitan area in Tennessee, surpassed only by metropolitan Nashville. Memphis is the youngest of Tennessee's major cities. A resident of Memphis is referred to as a Memphian, and the Memphis region is known, particularly to media outlets, as "Memphis & the Mid-South".