Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Green Belt Bank & Trust | Iowa Falls, IA | 07-31-1986 | $740,169 | BK |
| Manufacturers Bank & Trust Company | Forest City, IA | 09-01-1945 | $738,507 | BK |
| First Bank | Waverly, IA | 01-01-1864 | $729,538 | BK |
| CORDA | Cedar Rapids, IA | 01-01-1935 | $726,262 | CU |
| GREATER IOWA | Ames, IA | 01-01-1932 | $691,505 | CU |
| Marion County State Bank | Pella, IA | 09-21-1935 | $648,460 | BK |
| Clear Lake Bank and Trust Company | Clear Lake, IA | 01-01-1934 | $636,139 | BK |
| Midstates Bank, National Association | Council Bluffs, IA | 01-01-1913 | $631,093 | BK |
| GNB Bank | Grundy Center, IA | 03-16-1934 | $630,720 | BK |
| Farmers Trust and Savings Bank | Spencer, IA | 04-07-1916 | $630,357 | BK |
| First State Bank | Webster City, IA | 10-15-1935 | $626,692 | BK |
| Community Savings Bank | Edgewood, IA | 01-10-1910 | $618,449 | BK |
| South Story Bank & Trust | Slater, IA | 09-01-1954 | $610,652 | BK |
| Liberty National Bank | Sioux City, IA | 03-17-2003 | $602,611 | BK |
| Citizens State Bank | Monticello, IA | 03-11-1931 | $596,307 | BK |