• Bank Name:Great Western Bank
  • Bank Class:Federal Reserve Non-Member Bank
  • Member FDIC:Certificate #15289
  • Routing Number:N/A
  • locations:171 Branches in 9 states
  • Web Address:
Headquarters:225 S. Main Ave., Sioux Falls, South Dakota 57104


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Great Western Bank was founded in August 1935 and is based in Sioux Falls, South Dakota. The bank operates as a subsidiary of Great Western Bancorp, Inc.. According to the FDIC and based on the institution's charter type, Great Western Bank is classified as a commercial bank, state charter and Fed nonmember, supervised by the FDIC. Great Western Bank is a FDIC-insured bank with certificate number of 15289. The Fed RSSD ID of Great Western Bank is 131650.

Great Western Bank currently operates with 171 branches located in 9 states. The bank has most branches in Nebraska, Iowa, South Dakota, Colorado and Arizona. As of today, Great Western Bank is the 49th largest bank in US by branch count. Great Western Bank is the 3rd largest bank in Nebraska with 48 branches; 3rd in Iowa with 46 branches, 2nd in South Dakota with 38 branches, 19th in Colorado with 20 branches and 18th in Arizona with 8 branches.

Bank routing number is a 9 digit code which is necessary to process Fedwire funds transfers, process direct deposits, bill payments, and other such automated transfers. We currently do not have a routing number for Great Western Bank in our database.

The full address of bank headquarters is 225 S. Main Ave., Sioux Falls, sd 57104. You can visit the official website of the bank at for more information and online banking service if available. For a list of all Great Western Bank branches and detailed branch information like hours of operation, phone number and address; please refine your search by selecting a state from the map or list below.


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

Aug 05, 1935Institution established: Original name: Farmers and Merchants Bank of Watertown

Mar 07, 1967Changed name to Farmers and Merchants Bank and Trust of Watertown

Dec 19, 1978Acquired First Security Bank (6073) in Morristown, SD

Jun 03, 1996Acquired American Federal Bank, A Federal Savings Bank (29242) in Madison, SD

Jun 03, 1996Changed name to F&m Bank

View 17 More Events in Banks History …


Judith Elizabeth Smith · 1 March 2017
Branch review: Sidney Branch

I do not have a e-mail account. Bring back the original sign in.... Read more

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3.0 / 5
  • Rating 3.00/

Bank rating displayed here is the average value for all Great Western Bank branches. A total of 2 customers had cast their vote for 171 branches and in average, Great Western Bank got a score of 3.0 out of 5 stars. The bank has 1 reviews or customer complaints filed.

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No branches were closed in the last 6 months...


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