Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Blackhawk Bank & Trust | Milan, IL | 06-28-1961 | $1,845,682 | BK |
| Crystal Lake Bank and Trust Company, National Association | Crystal Lake, IL | 12-19-1997 | $1,774,025 | BK |
| CNB Bank and Trust, N.A. | Carlinville, IL | 01-01-1888 | $1,755,097 | BK |
| SCOTT | Edwardsville, IL | 01-01-1943 | $1,745,005 | CU |
| American Commercial Bank & Trust, National Association | Ottawa, IL | 06-01-1865 | $1,717,868 | BK |
| Bank of Springfield | Springfield, IL | 10-29-1965 | $1,708,754 | BK |
| Providence Bank & Trust | South Holland, IL | 09-20-2004 | $1,636,633 | BK |
| First State Bank | Mendota, IL | 07-06-1940 | $1,537,157 | BK |
| GREAT LAKES | BANNOCKBURN, IL | 01-01-1938 | $1,485,586 | CU |
| Evergreen Bank Group | Oak Brook, IL | 10-05-1999 | $1,448,528 | BK |
| Amalgamated Bank of Chicago | Chicago, IL | 06-30-1922 | $1,427,519 | BK |
| BankFinancial, National Association | Olympia Fields, IL | 01-01-1924 | $1,426,058 | BK |
| Central Bank Illinois | Geneseo, IL | 02-01-1907 | $1,412,356 | BK |
| Dieterich Bank | Effingham, IL | 01-01-1909 | $1,358,488 | BK |
| CREDIT UNION 1 | Rantoul, IL | 01-01-1958 | $1,226,789 | CU |