State Bank
| Status: | Inactive as of 11/21/1980 |
| Merger - Without Assistance | |
| Successor Bank: | F&M Bank-Iowa Central |
| Headquarters: | State Bank Main Street Gladbrook, IA 50635 |
| Established: | 07/26/1900 |
| FDIC Insurance: | 01/01/1934 |
| FDIC Cert: | #8084 |
| Charter Class: | Commercial bank, state charter and Fed member, supervised by the Federal Reserve (FRB) |
History
| 1900-07-26 | Institution established: Original name:State Bank | |
| 1980-11-21 | Merged into and subsequently operated as part of Security Savings Bank (10904) in MARSHALLTOWN, IA | |
| 1986-07-16 | Changed name to Security Bank (10904) | |
| 1986-07-24 | Acquired (4492) | |
| 1987-02-07 | Acquired Hawkeye Bank & Trust, Eldora, Iowa (21270) in ELDORA, IA | |
| 1998-06-30 | Changed name to F&M Bank-Iowa Central (10904) | |
| 1999-09-01 | Acquired F&M Bank-Iowa Story County (26238) in STORY CITY, IA | |
| 1999-09-01 | Acquired F&M Bank-Iowa South Central (9303) in GRINNELL, IA | |
| 2010-04-23 | Merged into and subsequently operated as part of Great Western Bank (15289) in WATERTOWN, SD | |
| 2010-06-04 | Acquired TierOne Bank (29341) in LINCOLN, NE as part of a government assisted transaction. | |
| 2012-06-22 | Acquired First Federal Savings Bank of Iowa (30742) in FORT DODGE, IA | |
| 2016-05-16 | Acquired Home Federal Bank (28092) in SIOUX FALLS, SD | |
| 2017-07-05 | Moved bank headquarters from WATERTOWN, SD to SIOUX FALLS, SD |