Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| GREENSTATE | North Liberty, IA | 01-01-1938 | $11,161,269 | CU |
| Principal Bank | Des Moines, IA | 02-12-1998 | $9,333,205 | BK |
| VERIDIAN | Waterloo, IA | 01-01-1934 | $8,607,532 | CU |
| Bankers Trust Company | Des Moines, IA | 06-01-1917 | $7,487,308 | BK |
| MidWestOne Bank | Iowa City, IA | 10-15-1934 | $6,254,039 | BK |
| Hills Bank and Trust Company | Hills, IA | 01-01-1904 | $4,647,826 | BK |
| West Bank | West Des Moines, IA | 01-01-1893 | $4,141,577 | BK |
| DUPACO COMMUNITY | Dubuque, IA | 01-01-1948 | $3,594,087 | CU |
| Northwest Bank | Spencer, IA | 12-30-1988 | $2,952,557 | BK |
| Cedar Rapids Bank and Trust Company | Cedar Rapids, IA | 09-14-2001 | $2,870,944 | BK |
| Quad City Bank and Trust Company | Bettendorf, IA | 01-07-1994 | $2,691,426 | BK |
| Fidelity Bank & Trust | Dubuque, IA | 04-20-1910 | $2,520,177 | BK |
| United Bank of Iowa | Ida Grove, IA | 02-04-1932 | $2,480,897 | BK |
| Bank Iowa | West Des Moines, IA | 03-07-1923 | $2,415,388 | BK |
| Central Bank | Storm Lake, IA | 01-01-1879 | $2,260,937 | BK |