Erwin is a town in and the county seat of Unicoi County, Tennessee, United States. The population was 6,097 at the 2010 census. It is part of the Johnson City 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.
Zip Codes in Erwin, TN that we also serve: 37650