Every FDIC-insured bank branch in Marshall County, Iowa as of June 30, 2025. County land area: 573 square miles, 2.8 branches per 100 sq mi.
| Institution | Branches | Deposits |
|---|---|---|
| Citizens Savings Bank | 3 | $65.9M |
| First Interstate Bank | 2 | $158.7M |
| Farmers Savings Bank | 2 | $77.5M |
| United Bank & Trust Co. | 2 | $107.3M |
| Central State Bank | 1 | $348.2M |
| GNB Bank | 1 | $41.4M |
| MidWestOne Bank | 1 | $42.4M |
| Pinnacle Bank | 1 | $258.6M |
| Wells Fargo Bank, National Association | 1 | $148.8M |
| Alerus Financial, National Association | 1 | $114.9M |
| U.S. Bank National Association | 1 | $75.4M |