Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Hinsdale Bank & Trust Company, National Association | Hinsdale, IL | 10-28-1993 | $5,498,540 | BK |
| Northbrook Bank and Trust Company, National Association | Northbrook, IL | 11-22-2000 | $5,194,066 | BK |
| Heartland Bank and Trust Company | Bloomington, IL | 02-22-1971 | $4,989,286 | BK |
| Barrington Bank & Trust Company, National Association | Barrington, IL | 12-19-1996 | $4,444,679 | BK |
| STATE FARM | Bloomington, IL | 01-01-1936 | $4,364,915 | CU |
| United Community Bank | Chatham, IL | 07-12-1965 | $3,644,871 | BK |
| Wheaton Bank & Trust, National Association | Wheaton, IL | 05-17-1993 | $3,621,551 | BK |
| Parkway Bank and Trust Company | Harwood Heights, IL | 01-22-1964 | $3,610,048 | BK |
| State Bank of India | Chicago, IL | 07-05-1955 | $3,571,628 | BK |
| CONSUMERS | lake Forest, IL | 01-01-1930 | $3,538,406 | CU |
| Carrollton Bank | Carrollton, IL | 01-01-1877 | $3,444,964 | BK |
| Banterra Bank | Marion, IL | 11-26-1955 | $3,095,418 | BK |
| St. Charles Bank & Trust Company, National Association | Saint Charles, IL | 09-21-1987 | $2,925,769 | BK |
| Village Bank and Trust, National Association | Arlington Heights, IL | 05-08-1995 | $2,900,827 | BK |
| Old Plank Trail Community Bank, National Association | New Lenox, IL | 03-16-2006 | $2,884,502 | BK |