About Blountville, Tennessee
Blountville is an unincorporated town and census-designated place (CDP) in Sullivan County, Tennessee, United States. The population was 3,074 at the 2010 census. It is the county seat of Sullivan County and is the only Tennessee county seat not to be an incorporated city or town.Blountville is part of the Kingsport?Bristol (TN)?Bristol (VA) Metropolitan Statistical Area, which is a component of the Johnson City?Kingsport?Bristol, TN-VA Combined Statistical Area ? commonly known as the "Tri-Cities" region.