Banks in Rock Island County, Illinois
45 active bank branches operated by 16 institutions, per FDIC records.
Active branches
45
Banks present
16
Deposits (2026)
$2.9B
Closings since 2020
6
1 openings
Largest banks by deposits in Rock Island County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Blackhawk Bank & Trust | $1.2B | 40.3% | 12 |
| TBK BANK | $235M | 8% | 7 |
| Quad City Bank and Trust Company | $193M | 6.6% | 1 |
| CBI Bank & Trust | $185M | 6.3% | 2 |
| Old National Bank | $181M | 6.2% | 2 |
| Wells Fargo | $172M | 5.8% | 2 |
| American Bank and Trust Company | $172M | 5.8% | 4 |
| Chase Bank | $164M | 5.6% | 1 |
| U.S. Bank | $133M | 4.5% | 3 |
| BankOrion | $100M | 3.4% | 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.