Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| The Peoples State Bank of Newton, Illinois | Newton, IL | 01-01-1875 | $670,702 | BK |
| Midwest Bank | Monmouth, IL | 09-09-1870 | $669,723 | BK |
| Sauk Valley Bank & Trust Company | Sterling, IL | 07-09-1999 | $655,728 | BK |
| Legence Bank | Eldorado, IL | 01-01-1906 | $654,567 | BK |
| UNIVERSITY OF ILLINOIS COMMUNITY | Champaign, IL | 01-01-1932 | $649,803 | CU |
| The Fairfield National Bank | Fairfield, IL | 02-03-1903 | $647,968 | BK |
| The First National Bank of Carmi | Carmi, IL | 12-20-1893 | $640,933 | BK |
| BankOrion | Orion, IL | 05-21-1890 | $640,548 | BK |
| The Bradford National Bank of Greenville | Greenville, IL | 01-01-1867 | $622,419 | BK |
| MidAmerica National Bank | Canton, IL | 11-22-1933 | $613,061 | BK |
| R.I.A. | Rock Island, IL | 01-01-1935 | $611,318 | CU |
| First Neighbor Bank, National Association | Toledo, IL | 01-01-1933 | $593,288 | BK |
| Longview Bank | Ogden, IL | 09-01-1899 | $587,523 | BK |
| Washington Savings Bank | Effingham, IL | 01-01-1883 | $586,519 | BK |
| FNBC Bank & Trust | La Grange, IL | 08-17-1908 | $582,404 | BK |