Ardmore is a town in Limestone County, Alabama, United States, and is included in the Huntsville-Decatur Metro Area. It is home to the Saturn 1B Rocket, at the Alabama Welcome Center, just south of the Tennessee border, on Interstate 65. As of the 2010 census, the population of the town is 1,194. According to the 2005 U.S. Census estimates, the town had a population of 1,106. It borders its sister city of Ardmore, Tennessee.