Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Liberty Bank for Savings | Chicago, IL | 01-01-1898 | $868,650 | BK |
| Resource Bank, National Association | Dekalb, IL | 10-01-1901 | $868,634 | BK |
| ANDIGO | SCHAUMBURG, IL | 01-01-1939 | $867,839 | CU |
| Millennium Bank | Des Plaines, IL | 07-02-2007 | $844,463 | BK |
| Prairie State Bank and Trust | Springfield, IL | 11-04-1988 | $840,081 | BK |
| CIBM Bank | Champaign, IL | 01-01-1921 | $819,740 | BK |
| Sauk Valley Bank & Trust Company | Sterling, IL | 07-09-1999 | $790,755 | BK |
| First Savings Bank of Hegewisch | Chicago, IL | 01-01-1914 | $787,046 | BK |
| Home State Bank, National Association | Crystal Lake, IL | 01-01-1915 | $775,950 | BK |
| Itasca Bank & Trust Co. | Itasca, IL | 01-24-1948 | $770,773 | BK |
| UNIVERSITY OF ILLINOIS COMMUNITY | Champaign, IL | 01-01-1932 | $765,468 | CU |
| R.I.A. | Rock Island, IL | 01-01-1935 | $749,123 | CU |
| The Peoples State Bank of Newton, Illinois | Newton, IL | 01-01-1875 | $736,713 | BK |
| Midwest Bank | Monmouth, IL | 09-09-1870 | $736,415 | BK |
| First Neighbor Bank, National Association | Toledo, IL | 01-01-1933 | $736,010 | BK |