Collierville is a town in Shelby County, Tennessee, United States, and a suburb located in the Memphis metropolitan area. The town had a population of 43,965 at the 2010 census. Collierville is a town of large houses and considerable retail expansion. Smaller, older houses are still found in the heart of Collierville, mainly between Byhalia Road and Collierville-Arlington on the east and west and Shelton and Highway 72 on the north and south.