Arlington is a town in the U.S. state of Tennessee. It is one of the seven municipalities in Shelby County. The town was officially incorporated as Haysville in 1878 and again as Arlington in 1900. The population was 2,569 at the 2000 census, 11,517 at the 2010 census, and 14,549 at the 2020 Census. From 2010 until 2020 the town's population grew by 26.33%.