Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Decorah Bank & Trust Company | Decorah, IA | 06-10-1935 | $709,474 | BK |
| CORDA | Cedar Rapids, IA | 01-01-1935 | $686,676 | CU |
| Premier Bank | Rock Valley, IA | 02-25-1997 | $681,799 | BK |
| GREATER IOWA | Ames, IA | 01-01-1932 | $653,708 | CU |
| Marion County State Bank | Pella, IA | 09-21-1935 | $652,856 | BK |
| Midstates Bank, National Association | Council Bluffs, IA | 01-01-1913 | $634,585 | BK |
| GNB Bank | Grundy Center, IA | 03-16-1934 | $629,255 | BK |
| Farmers Trust and Savings Bank | Spencer, IA | 04-07-1916 | $622,293 | BK |
| Liberty National Bank | Sioux City, IA | 03-17-2003 | $614,488 | BK |
| Community Savings Bank | Edgewood, IA | 01-10-1910 | $609,792 | BK |
| Farmers & Merchants Savings Bank | Manchester, IA | 07-20-1925 | $603,804 | BK |
| Clear Lake Bank and Trust Company | Clear Lake, IA | 01-01-1934 | $600,626 | BK |
| First State Bank | Webster City, IA | 10-15-1935 | $590,630 | BK |
| Washington State Bank | Washington, IA | 04-18-1932 | $576,639 | BK |
| South Story Bank & Trust | Slater, IA | 09-01-1954 | $574,716 | BK |