• Bank Name:Teton Banks
  • Bank Class:Federal Reserve Non-Member Bank
  • Member FDIC:Certificate #364 - Inactive
  • Web Address:tetonbanks.com
Headquarters:321 Central Avenue, Fairfield, Montana 59436
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Teton Banks was established in January 1909 and headquartered in Fairfield, Montana. The bank operated as a subsidiary of Inter-Mountain Bancorp., Inc.. Teton Banks was classified as a commercial bank, state charter and Fed nonmember, supervised by the FDIC. Teton Banks is no longer doing business under that name. To view branches, routing numbers, phone numbers and business hours; you can check First Security Bank page.

Below is a list of some important events in banks history, including mergers and acquisitions.


01/01/1909 -Institution established: Original name: The Citizen's State Bank of Choteau

11/30/1937 -Changed primary regulatory agency from Federal Deposit Insurance Corporation to Federal Reserve Board

11/30/1937 -Changed institution class to Insured Commercial Or Savings Banks, State, Members FRS

02/20/2010 -Acquired The First National Bank of Fairfield (2173) in Fairfield, MT

02/20/2010 -Moved bank headquarters from Choteau, MT to Fairfield, MT

03/31/2011 -Changed name to Teton Banks

08/27/2015 -Changed primary regulatory agency from Federal Reserve Board to Federal Deposit Insurance Corporation

08/27/2015 -Changed institution class to Insured Commercial Banks, State, Not Members Of The FRS

10/29/2016 -Merged into and subsequently operated as part of First Security Bank (1520) in Bozeman, MT


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118 Branches
75 Branches
33 Branches
12 Branches
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