bluff city population
Bluff City, Tennessee. This article is about the city named Bluff City. For the city nicknamed The Bluff City, see Memphis, Tennessee. Bluff City is a city in Sullivan County, Tennessee, United States. The population was 1,733 at the 2010 census. It is part of the KingsportâBristol (TN)âBristol (VA) 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.