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 | $1,876,318 | BK |
| Blackhawk Bank & Trust | Milan, IL | 06-28-1961 | $1,866,322 | BK |
| American Commercial Bank & Trust, National Association | Ottawa, IL | 06-01-1865 | $1,848,303 | BK |
| SCOTT | Edwardsville, IL | 01-01-1943 | $1,804,116 | CU |
| Bank of Springfield | Springfield, IL | 10-29-1965 | $1,801,516 | BK |
| CNB Bank and Trust, N.A. | Carlinville, IL | 01-01-1888 | $1,791,832 | BK |
| Foresight Bank | Winnebago, IL | 01-06-1907 | $1,596,500 | BK |
| First State Bank | Mendota, IL | 07-06-1940 | $1,560,484 | BK |
| Providence Bank & Trust | South Holland, IL | 09-20-2004 | $1,543,920 | BK |
| GREAT LAKES | BANNOCKBURN, IL | 01-01-1938 | $1,460,935 | CU |
| BankFinancial, National Association | Olympia Fields, IL | 01-01-1924 | $1,422,665 | BK |
| Dieterich Bank | Effingham, IL | 01-01-1909 | $1,402,240 | BK |
| Central Bank Illinois | Geneseo, IL | 02-01-1907 | $1,381,291 | BK |
| Amalgamated Bank of Chicago | Chicago, IL | 06-30-1922 | $1,258,293 | BK |
| CREDIT UNION 1 | Rantoul, IL | 01-01-1958 | $1,226,789 | CU |