Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Peoples Bank | Clive, IA | 03-17-1917 | $474,065 | BK |
| Iowa State Bank | Des Moines, IA | 04-14-1941 | $469,969 | BK |
| Iowa State Bank | Algona, IA | 01-01-1928 | $467,480 | BK |
| Rolling Hills Bank & Trust | Atlantic, IA | 07-01-1876 | $463,819 | BK |
| NSB Bank | Mason City, IA | 01-01-1933 | $462,777 | BK |
| Central State Bank | Coralville, IA | 11-12-1931 | $457,011 | BK |
| Raccoon Valley Bank | Perry, IA | 01-01-1927 | $448,959 | BK |
| Ohnward Bank & Trust | Cascade, IA | 02-28-1903 | $439,493 | BK |
| Northeast Security Bank | Sumner, IA | 01-01-1888 | $438,297 | BK |
| FreedomBank | Elkader, IA | 01-01-1903 | $437,113 | BK |
| TruBank | Indianola, IA | 01-01-1883 | $434,273 | BK |
| Security State Bank | Sutherland, IA | 01-01-1931 | $433,512 | BK |
| Home State Bank | Jefferson, IA | 01-01-1934 | $430,248 | BK |
| Maquoketa State Bank | Maquoketa, IA | 09-02-1958 | $419,980 | BK |
| The Clinton National Bank | Clinton, IA | 05-01-1865 | $419,065 | BK |