Banks in Poweshiek County, Iowa
10 active bank branches operated by 7 institutions, per FDIC records.
Active branches
10
Banks present
7
Deposits (2026)
$580M
Closings since 2020
0
1 openings
Largest banks by deposits in Poweshiek County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Grinnell State Bank | $139M | 24% | 1 |
| First State Bank | $138M | 23.8% | 3 |
| Lincoln Savings Bank | $83M | 14.3% | 1 |
| Wells Fargo | $69M | 11.9% | 1 |
| Fidelity Bank & Trust | $60M | 10.4% | 2 |
| Montezuma State Bank | $46M | 8% | 1 |
| First Interstate Bank | $44M | 7.6% | 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.