Every FDIC-insured bank branch in Martin County, Minnesota as of June 30, 2025. County land area: 712 square miles, 2.1 branches per 100 sq mi.
| Institution | Branches | Deposits |
|---|---|---|
| Profinium, Inc. | 2 | $287.3M |
| Farmers State Bank of Trimont | 2 | $60.9M |
| Bank Midwest | 2 | $194.4M |
| Farmers and Merchants State Bank of Alpha | 1 | $40.0M |
| Welcome State Bank | 1 | $36.5M |
| Triumph State Bank | 1 | $32.9M |
| First Farmers & Merchants National Bank | 1 | $62.1M |
| Citizens Community Federal National Association | 1 | $36.9M |
| U.S. Bank National Association | 1 | $61.5M |
| Portage Bank | 1 | $54.7M |
| Citizens Bank Minnesota | 1 | $17.7M |
| State Bank of Fairmont | 1 | $127.7M |