Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| The Federal Savings Bank | Chicago, IL | 07-03-2000 | $1,184,665 | BK |
| First Bankers Trust Company, National Association | Quincy, IL | 10-23-1946 | $1,148,004 | BK |
| SELFRELIANCE | Chicago, IL | 01-01-1951 | $1,112,509 | CU |
| VIBRANT | Moline, IL | 01-01-1935 | $1,050,233 | CU |
| First Southern Bank | Marion, IL | 12-15-1937 | $1,018,270 | BK |
| Bank of Pontiac | Pontiac, IL | 09-06-1947 | $1,014,640 | BK |
| ABBOTT LABORATORIES | Gurnee, IL | 01-01-0000 | $1,000,838 | CU |
| 1ST MIDAMERICA | Bethalto, IL | 01-01-1934 | $964,491 | CU |
| Cornerstone National Bank & Trust Company | Palatine, IL | 10-16-2000 | $958,275 | BK |
| American Community Bank & Trust | Woodstock, IL | 03-13-2000 | $952,226 | BK |
| First National Bank of Waterloo | Waterloo, IL | 06-12-1912 | $939,373 | BK |
| International Bank of Chicago | Chicago, IL | 10-26-1992 | $939,301 | BK |
| Belmont Bank & Trust Company | Chicago, IL | 06-14-2006 | $912,757 | BK |
| Iroquois Federal Savings and Loan Association | Watseka, IL | 01-01-1883 | $910,846 | BK |
| CIBM Bank | Champaign, IL | 01-01-1921 | $890,895 | BK |