Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| GREENSTATE | North Liberty, IA | 01-01-1938 | $11,351,187 | CU |
| Principal Bank | Des Moines, IA | 02-12-1998 | $8,207,762 | BK |
| VERIDIAN | WATERLOO, IA | 01-01-1934 | $7,448,974 | CU |
| Bankers Trust Company | Des Moines, IA | 06-01-1917 | $6,598,911 | BK |
| MidWestOne Bank | Iowa City, IA | 10-15-1934 | $6,423,445 | BK |
| Hills Bank and Trust Company | Hills, IA | 01-01-1904 | $4,340,318 | BK |
| West Bank | West Des Moines, IA | 01-01-1893 | $3,824,435 | BK |
| DUPACO COMMUNITY | Dubuque, IA | 01-01-1948 | $3,266,842 | CU |
| Northwest Bank | Spencer, IA | 12-30-1988 | $2,609,983 | BK |
| Cedar Rapids Bank and Trust Company | Cedar Rapids, IA | 09-14-2001 | $2,504,868 | BK |
| Quad City Bank and Trust Company | Bettendorf, IA | 01-07-1994 | $2,430,238 | BK |
| United Bank of Iowa | Ida Grove, IA | 02-04-1932 | $2,420,570 | BK |
| Central Bank | Storm Lake, IA | 01-01-1879 | $2,135,960 | BK |
| Luana Savings Bank | Luana, IA | 08-01-1908 | $2,081,734 | BK |
| Bank Iowa | West Des Moines, IA | 03-07-1923 | $2,073,309 | BK |