Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Sauk Valley Bank & Trust Company | Sterling, IL | 07-09-1999 | $699,080 | BK |
| The Peoples State Bank of Newton, Illinois | Newton, IL | 01-01-1875 | $690,783 | BK |
| Midwest Bank | Monmouth, IL | 09-09-1870 | $681,716 | BK |
| UNIVERSITY OF ILLINOIS COMMUNITY | Champaign, IL | 01-01-1932 | $660,810 | CU |
| BankOrion | Orion, IL | 05-21-1890 | $645,887 | BK |
| MidAmerica National Bank | Canton, IL | 11-22-1933 | $637,467 | BK |
| The Fairfield National Bank | Fairfield, IL | 02-03-1903 | $634,827 | BK |
| First Neighbor Bank, National Association | Toledo, IL | 01-01-1933 | $634,571 | BK |
| Bank of Hillsboro, National Association | Hillsboro, IL | 07-02-1945 | $633,958 | BK |
| Legence Bank | Eldorado, IL | 01-01-1906 | $630,625 | BK |
| Longview Bank | Ogden, IL | 09-01-1899 | $622,423 | BK |
| Peoples Bank & Trust | Pana, IL | 05-01-1954 | $614,251 | BK |
| The Bradford National Bank of Greenville | Greenville, IL | 01-01-1867 | $608,624 | BK |
| R.I.A. | Rock Island, IL | 01-01-1935 | $607,262 | CU |
| Millennium Bank | Des Plaines, IL | 07-02-2007 | $597,423 | BK |