Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| PCSB Bank | Clarinda, IA | 01-01-1866 | $324,166 | BK |
| Community State Bank | Spencer, IA | 01-01-1914 | $323,705 | BK |
| Commercial Savings Bank | Carroll, IA | 01-01-1917 | $321,210 | BK |
| Pinnacle Bank | Marshalltown, IA | 05-05-1927 | $303,870 | BK |
| Reliance State Bank | Story City, IA | 01-28-1928 | $299,119 | BK |
| Community Bank and Trust Company | Muscatine, IA | 08-11-1980 | $295,417 | BK |
| MEMBERS1ST COMMUNITY | Marshalltown, IA | 01-01-1964 | $291,705 | CU |
| First Whitney Bank and Trust | Atlantic, IA | 01-01-1907 | $291,357 | BK |
| The Home Trust & Savings Bank | Osage, IA | 12-01-1899 | $291,179 | BK |
| Savings Bank | Primghar, IA | 11-15-1894 | $288,808 | BK |
| Pioneer Bank | Sergeant Bluff, IA | 01-01-1907 | $286,825 | BK |
| Iowa State Savings Bank | Creston, IA | 01-01-1883 | $285,802 | BK |
| Crawford County Trust and Savings Bank | Denison, IA | 03-15-1927 | $283,656 | BK |
| First Trust and Savings Bank | Wheatland, IA | 01-01-1905 | $282,387 | BK |
| Security Trust & Savings Bank | Storm Lake, IA | 01-01-1908 | $282,022 | BK |