Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| The Clinton National Bank | Clinton, IA | 05-01-1865 | $411,123 | BK |
| The Libertyville Savings Bank | Fairfield, IA | 09-16-1901 | $383,258 | BK |
| Premier Bank | Dubuque, IA | 10-13-1998 | $375,866 | BK |
| Iowa State Bank | Clarksville, IA | 01-01-1918 | $371,240 | BK |
| First Iowa State Bank | Albia, IA | 05-12-1930 | $370,580 | BK |
| Earlham Savings Bank | West Des Moines, IA | 01-01-1931 | $361,019 | BK |
| First State Bank | Lynnville, IA | 01-01-1912 | $358,629 | BK |
| Kerndt Brothers Savings Bank | Lansing, IA | 01-14-1908 | $355,158 | BK |
| Hardin County Savings Bank | Eldora, IA | 01-01-1868 | $349,147 | BK |
| Farmers Trust and Savings Bank | Buffalo Center, IA | 01-01-1914 | $344,501 | BK |
| PREMIER | Des Moines, IA | 01-01-1933 | $329,152 | CU |
| American State Bank | Osceola, IA | 04-23-1987 | $326,613 | BK |
| Community State Bank | Spencer, IA | 01-01-1914 | $325,564 | BK |
| New Albin Savings Bank | New Albin, IA | 01-01-1898 | $324,811 | BK |
| PCSB Bank | Clarinda, IA | 01-01-1866 | $324,811 | BK |