Banks in Butler County, Iowa
9 active bank branches operated by 5 institutions, per FDIC records.
Active branches
9
Banks present
5
Deposits (2026)
$639M
Closings since 2020
3
1 openings
Largest banks by deposits in Butler County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Iowa State Bank | $340M | 53.2% | 3 |
| Lincoln Savings Bank | $180M | 28.2% | 3 |
| Nicolet National Bank | $50M | 7.8% | 1 |
| CUSB Bank | $35M | 5.5% | 1 |
| Green Belt Bank & Trust | $35M | 5.4% | 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.