Elliston is a census-designated place in Montgomery County, Virginia, United States. It lies between the city of Roanoke and the town of Christiansburg in the southwestern part of the state. The population as of the 2010 Census was 902. It is home to a small fire department, an elementary school, two gas stations, a train stop, and several churches. Most of its residents commute to larger towns. A set of railroad tracks separates the northwestern part of the town from the rest.