Banks in Polk County, Iowa
134 active bank branches operated by 39 institutions, per FDIC records.
Active branches
134
Banks present
39
Deposits (2025)
$29.8B
Closings since 2020
28
18 openings
Largest banks by deposits in Polk County (2025)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Principal Bank | $8.4B | 28.1% | 1 |
| Bankers Trust Company | $4.4B | 14.8% | 12 |
| Wells Fargo | $3.2B | 10.9% | 11 |
| U.S. Bank | $3.2B | 10.8% | 12 |
| West Bank | $2.5B | 8.4% | 6 |
| Bank of America | $2.4B | 7.9% | 4 |
| Community State Bank | $1.3B | 4.2% | 9 |
| First Interstate Bank | $549M | 1.8% | 5 |
| Iowa State Bank | $378M | 1.3% | 5 |
| Northwest Bank | $367M | 1.2% | 3 |
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.