Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Peoples National Bank , N.A. | Mount Vernon, IL | 03-01-1909 | $1,997,437 | BK |
| Signature Bank | Rosemont, IL | 08-04-2006 | $1,993,505 | BK |
| Blackhawk Bank & Trust | Milan, IL | 06-28-1961 | $1,908,431 | BK |
| Bank of Springfield | Springfield, IL | 10-29-1965 | $1,904,880 | BK |
| SCOTT | Edwardsville, IL | 01-01-1943 | $1,809,941 | CU |
| Foresight Bank | Winnebago, IL | 01-06-1907 | $1,662,075 | BK |
| First State Bank | Mendota, IL | 07-06-1940 | $1,592,935 | BK |
| Providence Bank & Trust | South Holland, IL | 09-20-2004 | $1,572,778 | BK |
| Dieterich Bank | Effingham, IL | 01-01-1909 | $1,568,158 | BK |
| Amalgamated Bank of Chicago | Chicago, IL | 06-30-1922 | $1,468,427 | BK |
| Central Bank Illinois | Geneseo, IL | 02-01-1907 | $1,423,224 | BK |
| GREAT LAKES | BANNOCKBURN, IL | 01-01-1938 | $1,406,288 | CU |
| First Bankers Trust Company, National Association | Quincy, IL | 10-23-1946 | $1,230,620 | BK |
| CREDIT UNION 1 | Rantoul, IL | 01-01-1958 | $1,226,789 | CU |
| Bank of Pontiac | Pontiac, IL | 09-06-1947 | $1,171,422 | BK |