CUSB Bank, History
The following are major historical events for CUSB Bank, including mergers and acquisitions.
| 1888-04-01 | Institution established: Original name:Cresco Union Savings Bank | |
| 1987-12-01 | Acquired Farmers State Bank (18444) in RIDGEWAY, IA | |
| 1992-02-08 | Acquired Exchange State Bank (18594) in LIME SPRINGS, IA | |
| 2005-11-08 | Changed name to C US Bank | |
| 2013-08-20 | Changed institution class to INSURED COMMERCIAL OR SAVINGS BANKS, STATE, MEMBERS FRS | |
| 2013-08-20 | Changed primary regulatory agency from FEDERAL DEPOSIT INSURANCE CORPORATION to FEDERAL RESERVE BOARD | |
| 2015-10-01 | Changed name to CUSB Bank | |
| 2022-03-18 |