Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| First National Bank & Trust Company | Clinton, IL | 06-01-1872 | $408,457 | BK |
| Community Savings Bank | Chicago, IL | 01-01-1925 | $408,191 | BK |
| IAA | Bloomington, IL | 01-01-1951 | $400,953 | CU |
| First Secure Bank and Trust Co. | Palos Hills, IL | 10-21-1977 | $397,643 | BK |
| The First National Bank of Allendale | Allendale, IL | 01-01-1906 | $396,939 | BK |
| Grand Ridge National Bank | Wheaton, IL | 04-06-1903 | $396,124 | BK |
| STREATOR ONIZED | Streator, IL | 01-01-1940 | $395,720 | CU |
| Union National Bank and Trust Company of Elgin | Elgin, IL | 05-21-1904 | $389,324 | BK |
| ABRI | Romeoville, IL | 01-01-1949 | $387,322 | CU |
| First Trust Bank of Illinois | Kankakee, IL | 07-30-1998 | $386,534 | BK |
| PARTNERSHIP FINANCIAL | MORTON GROVE, IL | 01-01-1958 | $383,668 | CU |
| Bank of O'Fallon | O'Fallon, IL | 03-28-1960 | $374,915 | BK |
| Community State Bank | Galva, IL | 11-24-1980 | $367,974 | BK |
| Farmers State Bank of Alto Pass, Ill. | Alto Pass, IL | 01-01-1910 | $366,448 | BK |
| Byron Bank | Byron, IL | 07-01-1932 | $363,477 | BK |