Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| NORTH IOWA COMMUNITY | MASON CITY, IA | 01-01-1956 | $121,933 | CU |
| United Bank & Trust Co. | Marshalltown, IA | 06-21-2002 | $121,317 | BK |
| Farmers and Merchants Savings Bank | Iowa City, IA | 09-25-1901 | $121,223 | BK |
| Cedar Valley Bank & Trust | La Porte City, IA | 07-06-1906 | $120,158 | BK |
| Security State Bank | Algona, IA | 03-01-1931 | $117,852 | BK |
| First Community Bank | Newell, IA | 01-01-1912 | $115,777 | BK |
| Pocahontas State Bank | Pocahontas, IA | 07-01-1926 | $114,674 | BK |
| Twin Cedars Bank | Bussey, IA | 03-27-1931 | $113,293 | BK |
| RIVER VALLEY | AMES, IA | 01-01-1961 | $112,155 | CU |
| Maynard Savings Bank | Maynard, IA | 01-01-1895 | $108,496 | BK |
| FNNB Bank | Newton, IA | 03-28-1932 | $105,444 | BK |
| ADVANTAGE | Newton, IA | 01-01-1937 | $104,374 | CU |
| Community Bank of Oelwein | Oelwein, IA | 10-01-1998 | $104,373 | BK |
| Sibley State Bank | Sibley, IA | 01-01-1894 | $103,500 | BK |
| MIDLAND | URBANDALE, IA | 01-01-1933 | $99,907 | CU |