Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| UNIVERSITY OF ILLINOIS COMMUNITY | Champaign, IL | 01-01-1932 | $713,595 | CU |
| Albany Bank and Trust Company National Association | Chicago, IL | 06-27-1953 | $705,645 | BK |
| Time Bank | Park Ridge, IL | 07-03-1995 | $703,979 | BK |
| The Peoples State Bank of Newton, Illinois | Newton, IL | 01-01-1875 | $701,746 | BK |
| Sauk Valley Bank & Trust Company | Sterling, IL | 07-09-1999 | $696,479 | BK |
| Midwest Bank | Monmouth, IL | 09-09-1870 | $673,740 | BK |
| First Neighbor Bank, National Association | Toledo, IL | 01-01-1933 | $664,344 | BK |
| Legence Bank | Eldorado, IL | 01-01-1906 | $662,789 | BK |
| BankOrion | Orion, IL | 05-21-1890 | $660,522 | BK |
| The Fairfield National Bank | Fairfield, IL | 02-03-1903 | $649,554 | BK |
| Bank of Hillsboro, National Association | Hillsboro, IL | 07-02-1945 | $646,213 | BK |
| R.I.A. | Rock Island, IL | 01-01-1935 | $642,382 | CU |
| The Bradford National Bank of Greenville | Greenville, IL | 01-01-1867 | $637,931 | BK |
| Longview Bank | Ogden, IL | 09-01-1899 | $633,013 | BK |
| MidAmerica National Bank | Canton, IL | 11-22-1933 | $630,204 | BK |