Banks in Sac County, Iowa
13 active bank branches operated by 10 institutions, per FDIC records.
Active branches
13
Banks present
10
Deposits (2026)
$551M
Closings since 2020
3
3 openings
Largest banks by deposits in Sac County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Iowa State Bank | $187M | 34% | 3 |
| United Bank of Iowa | $97M | 17.5% | 2 |
| Bank Midwest | $57M | 10.4% | 1 |
| Iowa Trust & Savings Bank | $47M | 8.5% | 1 |
| State Bank of Schaller | $35M | 6.3% | 1 |
| Westside State Bank | $32M | 5.8% | 1 |
| Farmers State Bank | $31M | 5.7% | 1 |
| The Citizens First National Bank of Storm Lake | $27M | 4.8% | 1 |
| First State Bank | $24M | 4.3% | 1 |
| The Shelby County State Bank | $14M | 2.6% | 1 |
Deposit location reflects the office to which deposits are reported and may not represent the residence of depositors.
Cities and towns
Transcribed from FDIC BankFind Suite active-location records and the annual Summary of Deposits. County assignment follows the FDIC branch record.