The American Bank & Trust of Wessington Springs, Miller, Wolsey, Alpena, Mellette, Huron, and De Smet was originally the Bank of Alpena and was started in 1886 when H. S. Royer operated a bank from behind a curtain in the back of his drug store.
In 1986, the First Bank Branch in Wessington Springs was purchased and added to the operation. In 1993 Farmers State Bank in Mellette was purchased and became the fourth location of American State Bank. A new bank building was erected across the street from the old building in Mellette and opened for business in April 1998.
The Hand County State Bank of Miller was purchased and added to the operation June 1, 2000. Construction of a new bank building in Wessington Springs was completed in 2000. A new branch was opened in Huron April 1, 2002 and the bank's name was changed to American Bank & Trust.
In July 2006 American Bank & Trust opened their 7th branch location at the Huron Wal-Mart. An expansion project to the Huron Branch was also underway in 2006 and was completed in May 2007. At this time American Trust Insurance was opened in the existing bank building and the bank was moved into the new addition.
In October 2011 Peoples State Bank in De Smet merges with American Bank & Trust, becoming the 8th location. American Bank & Trust currently has 90 employees in 8 branch locations in 7 communities including Wessington Springs, Alpena, Mellette, Miller, Wolsey, Huron and De Smet with assets of over $350 million.
Alpena
805 Main Street
PO Box 69
Alpena, SD 57312
De Smet
212 Calumet Avenue SE
PO Box 150
De Smet, SD 57231
Huron Wal-Mart
2791 Dakota Avenue S
Huron, SD 57350
Mellette
4 Main Street
P.O. Box 197
Mellette, SD 57461
Huron
1820 Dakota Avenue S
PO Box 838
Huron, SD 57350
Miller
131 N Broadway
PO Box 317
Miller, SD 57362
Wessington Springs
120 E Main Street
PO Box 469
Wessington Springs, SD 57382
Wolsey
265 Commercial Avenue S.W.
PO Box 250
Wolsey, SD 57384
