where is roan tn
For the nearby mountain, see Roan Mountain (Roan Highlands). For the nearby state park, see Roan Mountain State Park. Roan Mountain is a census-designated place (CDP) in Carter County, Tennessee, United States. The population was 1,360 at the 2010 census. It is part of the Johnson City Metropolitan Statistical Area, which is a component of the Johnson CityâKingsportâBristol, TN-VA Combined Statistical Area â commonly known as the Tri-Cities region.