Banks in Mahaska County, Iowa
8 active bank branches operated by 7 institutions, per FDIC records.
Active branches
8
Banks present
7
Deposits (2025)
$353M
Closings since 2020
2
1 openings
Largest banks by deposits in Mahaska County (2025)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Bank Iowa | $154M | 43.8% | 2 |
| TruBank | $72M | 20.3% | 1 |
| Great Southern Bank | $36M | 10.2% | 1 |
| Twin Cedars Bank | $34M | 9.8% | 1 |
| Leighton State Bank | $29M | 8.3% | 1 |
| First State Bank | $27M | 7.7% | 1 |
| Nicolet National Bank | $0K | 0% | 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.