Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Iroquois Federal Savings and Loan Association | Watseka, IL | 01-01-1883 | $879,141 | BK |
| NUMARK | Joliet, IL | 01-01-1954 | $877,505 | CU |
| ANDIGO | SCHAUMBURG, IL | 01-01-1939 | $867,839 | CU |
| Liberty Bank for Savings | Chicago, IL | 01-01-1898 | $857,235 | BK |
| CIBM Bank | Champaign, IL | 01-01-1921 | $843,905 | BK |
| CORPORATE AMERICA FAMILY | Elgin, IL | 01-01-1976 | $836,547 | CU |
| Resource Bank, National Association | Dekalb, IL | 10-01-1901 | $811,622 | BK |
| First Savings Bank of Hegewisch | Chicago, IL | 01-01-1914 | $810,368 | BK |
| Fortress Bank | Peoria, IL | 01-04-1904 | $804,785 | BK |
| Prairie State Bank and Trust | Springfield, IL | 11-04-1988 | $794,693 | BK |
| Itasca Bank & Trust Co. | Itasca, IL | 01-24-1948 | $761,462 | BK |
| Hickory Point Bank and Trust | Decatur, IL | 06-04-1979 | $751,281 | BK |
| Home State Bank, National Association | Crystal Lake, IL | 01-01-1915 | $746,847 | BK |
| Millennium Bank | Des Plaines, IL | 07-02-2007 | $735,761 | BK |
| Prospect Bank | Paris, IL | 03-23-1873 | $720,811 | BK |