Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| PCSB Bank | Clarinda, IA | 01-01-1866 | $318,393 | BK |
| Glenwood State Bank | Glenwood, IA | 01-01-1899 | $316,517 | BK |
| Commercial Savings Bank | Carroll, IA | 01-01-1917 | $311,820 | BK |
| Iowa State Bank and Trust Company of Fairfield, Iowa | Fairfield, IA | 05-19-1934 | $302,668 | BK |
| Pinnacle Bank | Marshalltown, IA | 05-05-1927 | $298,782 | BK |
| Pioneer Bank | Sergeant Bluff, IA | 01-01-1907 | $295,755 | BK |
| Reliance State Bank | Story City, IA | 01-28-1928 | $294,280 | BK |
| MEMBERS1ST COMMUNITY | Marshalltown, IA | 01-01-1964 | $290,968 | CU |
| First Whitney Bank and Trust | Atlantic, IA | 01-01-1907 | $290,274 | BK |
| Savings Bank | Primghar, IA | 11-15-1894 | $289,876 | BK |
| Community Bank and Trust Company | Muscatine, IA | 08-11-1980 | $289,449 | BK |
| United Community Bank | Milford, IA | 06-10-1931 | $286,978 | BK |
| The Home Trust & Savings Bank | Osage, IA | 12-01-1899 | $285,199 | BK |
| Iowa State Savings Bank | Creston, IA | 01-01-1883 | $284,272 | BK |
| Farmers Savings Bank | Colesburg, IA | 01-01-1907 | $280,749 | BK |