Banks in Monroe County, Illinois
20 active bank branches operated by 10 institutions, per FDIC records.
Active branches
20
Banks present
10
Deposits (2026)
$1.2B
Closings since 2020
1
2 openings
Largest banks by deposits in Monroe County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| First National Bank of Waterloo | $368M | 30.8% | 4 |
| State Bank | $217M | 18.1% | 4 |
| Regions Bank | $160M | 13.4% | 1 |
| FCB Banks | $94M | 7.9% | 1 |
| Midland States Bank | $91M | 7.6% | 3 |
| Dieterich Bank | $89M | 7.5% | 3 |
| Associated Bank | $78M | 6.5% | 1 |
| Commerce Bank | $58M | 4.9% | 1 |
| Bank of Belleville | $29M | 2.4% | 1 |
| The Central Trust Bank | $11M | 1% | 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.