Every FDIC-insured bank branch in Sullivan County, Tennessee as of June 30, 2025. County land area: 414 square miles, 8.2 branches per 100 sq mi.
| Institution | Branches | Deposits |
|---|---|---|
| Bank of Tennessee | 6 | $594.5M |
| Citizens Bank | 5 | $252.1M |
| First Horizon Bank | 5 | $510.0M |
| Regions Bank | 4 | $325.8M |
| The First Bank and Trust Company | 4 | $257.1M |
| Truist Bank | 3 | $226.3M |
| Renasant Bank | 1 | $48.7M |
| FSNB, National Association | 1 | $1.1M |
| Commercial Bank | 1 | $25.4M |
| HomeTrust Bank | 1 | $42.2M |
| First Community Bank of East Tennessee | 1 | $17.6M |
| New Peoples Bank, Inc. | 1 | $25.1M |
| Powell Valley National Bank | 1 | $59.8M |