Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Sterling Federal Bank, F.S.B. | Sterling, IL | 01-01-1885 | $537,840 | BK |
| SIU | Carbondale, IL | 01-01-1938 | $527,483 | CU |
| HEARTLAND | Springfield, IL | 01-01-1946 | $523,023 | CU |
| First State Bank and Trust | Monticello, IL | 11-10-1945 | $508,239 | BK |
| Citizens Community Bank | Mascoutah, IL | 12-21-1992 | $506,768 | BK |
| First Secure Community Bank | Sugar Grove, IL | 02-07-2000 | $503,044 | BK |
| Germantown Trust & Savings Bank | Breese, IL | 02-06-1906 | $500,103 | BK |
| Solutions Bank | Forreston, IL | 01-01-1887 | $492,561 | BK |
| Pan American Bank & Trust | Melrose Park, IL | 12-22-1995 | $486,878 | BK |
| American Eagle Bank | South Elgin, IL | 10-17-2002 | $485,969 | BK |
| Devon Bank | Chicago, IL | 09-15-1945 | $485,055 | BK |
| LAND OF LINCOLN | DECATUR, IL | 01-01-1947 | $483,943 | CU |
| Petefish, Skiles & Co. | Virginia, IL | 01-01-1870 | $483,424 | BK |
| First Robinson Savings Bank, National Association | Robinson, IL | 01-01-1884 | $477,205 | BK |
| Casey State Bank | Casey, IL | 01-01-1880 | $476,625 | BK |