Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Farmers & Merchants Savings Bank | Manchester, IA | 07-20-1925 | $593,773 | BK |
| Washington State Bank | Washington, IA | 04-18-1932 | $588,904 | BK |
| Peoples Savings Bank | Indianola, IA | 11-20-1998 | $575,849 | BK |
| ASCENTRA | Bettendorf, IA | 01-01-1950 | $575,183 | CU |
| Central State Bank | State Center, IA | 01-01-1902 | $568,581 | BK |
| First Security Bank and Trust Company | Charles City, IA | 07-14-1903 | $558,087 | BK |
| American Bank, National Association | Le Mars, IA | 01-01-1887 | $554,123 | BK |
| Connection Bank | Fort Madison, IA | 07-01-1854 | $540,109 | BK |
| The Shelby County State Bank | Harlan, IA | 08-02-1909 | $529,831 | BK |
| Iowa Trust & Savings Bank | Emmetsburg, IA | 07-01-1929 | $523,441 | BK |
| South Ottumwa Savings Bank | Ottumwa, IA | 01-01-1903 | $518,942 | BK |
| Grinnell State Bank | Grinnell, IA | 10-25-1925 | $500,279 | BK |
| Peoples Bank | Clive, IA | 03-17-1917 | $493,898 | BK |
| Midwest Heritage Bank, FSB | West Des Moines, IA | 04-01-1930 | $491,648 | BK |
| TruBank | Indianola, IA | 01-01-1883 | $483,620 | BK |