Banks in St. Charles County, Missouri
109 active bank branches operated by 35 institutions, per FDIC records.
Active branches
109
Banks present
35
Deposits (2026)
$10.0B
Closings since 2020
20
11 openings
Largest banks by deposits in St. Charles County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| U.S. Bank | $1.7B | 17.5% | 10 |
| Commerce Bank | $1.1B | 11.3% | 6 |
| Bank of America | $1.1B | 10.9% | 5 |
| Midland States Bank | $559M | 5.6% | 2 |
| Regions Bank | $555M | 5.6% | 10 |
| Enterprise Bank & Trust | $478M | 4.8% | 1 |
| Carrollton Bank | $379M | 3.8% | 1 |
| First State Bank of St. Charles, Missouri | $373M | 3.7% | 5 |
| PNC Bank | $303M | 3% | 4 |
| The Central Trust Bank | $281M | 2.8% | 6 |
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.