Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| First Bankers Trust Company, National Association | Quincy, IL | 10-23-1946 | $1,185,642 | BK |
| Amalgamated Bank of Chicago | Chicago, IL | 06-30-1922 | $1,167,140 | BK |
| Bank of Pontiac | Pontiac, IL | 09-06-1947 | $1,144,182 | BK |
| American Community Bank & Trust | Woodstock, IL | 03-13-2000 | $1,110,463 | BK |
| VIBRANT | Moline, IL | 01-01-1935 | $1,073,836 | CU |
| First Southern Bank | Marion, IL | 12-15-1937 | $1,069,907 | BK |
| International Bank of Chicago | Chicago, IL | 10-26-1992 | $1,038,571 | BK |
| ABBOTT LABORATORIES | Gurnee, IL | 01-01-0000 | $1,034,585 | CU |
| SELFRELIANCE | Chicago, IL | 01-01-1951 | $1,019,514 | CU |
| Cornerstone National Bank & Trust Company | Palatine, IL | 10-16-2000 | $1,004,100 | BK |
| 1ST MIDAMERICA | Bethalto, IL | 01-01-1934 | $987,547 | CU |
| Belmont Bank & Trust Company | Chicago, IL | 06-14-2006 | $937,435 | BK |
| First National Bank of Waterloo | Waterloo, IL | 06-12-1912 | $922,782 | BK |
| Iroquois Federal Savings and Loan Association | Watseka, IL | 01-01-1883 | $893,425 | BK |
| Servbank,sb | Oswego, IL | 01-03-1994 | $880,079 | BK |