Sullivan County
Communities
Cities
- Bluff City
- Bristol
- Johnson City (mostly in Washington County and a small portion in Carter County)
- Kingsport (partial)
Census-designated places
- Bloomingdale
- Blountville (county seat)
- Colonial Heights
- Spurgeon (partial)
- Walnut Hill
Unincorporated communities
- Arcadia
- Buffalo
- Morrison City
- Piney Flats
- Sullivan Gardens
- Hickory Tree
- Holston Valley
- Vinegar Hill
