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 | $678,516 | BK |
| LINN AREA | Cedar Rapids, IA | 01-01-1935 | $667,233 | CU |
| Marion County State Bank | Pella, IA | 09-21-1935 | $666,542 | BK |
| Midstates Bank, National Association | Council Bluffs, IA | 01-01-1913 | $652,522 | BK |
| GNB Bank | Grundy Center, IA | 03-16-1934 | $650,960 | BK |
| GREATER IOWA | Ames, IA | 01-01-1932 | $644,335 | CU |
| First State Bank | Webster City, IA | 10-15-1935 | $621,452 | BK |
| Premier Bank | Rock Valley, IA | 02-25-1997 | $608,281 | BK |
| Liberty National Bank | Sioux City, IA | 03-17-2003 | $606,494 | BK |
| Farmers Trust and Savings Bank | Spencer, IA | 04-07-1916 | $598,001 | BK |
| Farmers & Merchants Savings Bank | Manchester, IA | 07-20-1925 | $597,080 | BK |
| Community Savings Bank | Edgewood, IA | 01-10-1910 | $590,627 | BK |
| First Security Bank and Trust Company | Charles City, IA | 07-14-1903 | $580,453 | BK |
| Clear Lake Bank and Trust Company | Clear Lake, IA | 01-01-1934 | $576,990 | BK |
| Washington State Bank | Washington, IA | 04-18-1932 | $563,315 | BK |