Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Security Trust & Savings Bank | Storm Lake, IA | 01-01-1908 | $271,261 | BK |
| MEMBERS1ST COMMUNITY | Marshalltown, IA | 01-01-1964 | $271,103 | CU |
| Success Bank | Bloomfield, IA | 01-01-1900 | $270,479 | BK |
| Iowa State Savings Bank | Creston, IA | 01-01-1883 | $270,270 | BK |
| Iowa State Bank and Trust Company of Fairfield, Iowa | Fairfield, IA | 05-19-1934 | $269,395 | BK |
| United Community Bank | Milford, IA | 06-10-1931 | $269,069 | BK |
| Pioneer Bank | Sergeant Bluff, IA | 01-01-1907 | $263,425 | BK |
| Freedom Financial Bank | West Des Moines, IA | 02-22-1999 | $262,329 | BK |
| Cherokee State Bank | Cherokee, IA | 10-08-1888 | $260,666 | BK |
| Farmers and Merchants State Bank | Winterset, IA | 08-11-1938 | $259,697 | BK |
| THE FAMILY | Davenport, IA | 01-01-1935 | $257,885 | CU |
| Fairfax State Savings Bank | Fairfax, IA | 10-20-1924 | $257,377 | BK |
| Heartland Bank | Somers, IA | 01-01-1901 | $253,057 | BK |
| DeWitt Bank & Trust Co. | Dewitt, IA | 06-15-1933 | $252,905 | BK |
| State Savings Bank | West Des Moines, IA | 07-04-1894 | $252,663 | BK |