515 S Minnesota Avenue
Sioux Falls, SD 57104
Phone: 605-361-1010
Fax: 605-361-5109
3310 W 49th St
Sioux Falls, SD 57106
Phone: 605-334-2400
Fax: 605-334-3427
549 Broadway
Centerville, SD 57014
Phone: 605-563-2207
Fax: 605-563-2437

Welcome to ONE AMERICAN BANK of Centerville & Sioux Falls.

Please contact us for all your banking needs or any questions.

Internet Banking   Personal Banking
Business and Agricultural Banking   Rates
ATM/Debit Cards
  Visa Credit Cards
Mobile Banking    

Important Information

Mobile Banking
Manage Your Accounts

Sign up today!

You can check balances, transfer funds with the Bank, view transactions, find ATM locations and view account alerts. (For your convenience, Mobile Banking uses the same User ID and Password as Internet Banking).

Learn how to enroll today
Frequently Asked Questions

Talk to a Bank Representative Today!


e-Statements are now available at ONE AMERICAN BANK. Learn how to simplify your life and reduce paper to save on the environment by clicking here for easy sign up instructions. Or if you like please call one of our associates at any branch location to assist you.

Sioux Falls 605-361-1010 (Minnesota Ave.)
Sioux Falls 605-334-2400 (49th St.)
Centerville 605-563-2207




As most have heard about the Target breach, ONE AMERICAN BANK requests you monitor your accounts closely on Internet Banking if you have shopped at any Target stores between November 27, 2013 and December 15, 2013 & used your credit or debit card(s). Please alert us of any unauthorized transactions. Again, please do not hesitate to contact us if you have any questions or concerns at 605-361-1010.

Here is a link provided by Target on some measures you can take to make sure your information is protected.


Pierre, SD: Attorney General Marty Jackley is warning South Dakota consumers to be cautious of robocalls targeting cell phone users with a scam that implies that their debit cards have been comprised. The automated phone message prompts the consumer to press a number one to unlock the card. Once the number one is pressed the consumer is connected to a live person who the requests the debit card number, current address and confirmation of recent transactions. The scam artist then asks for a PIN number in order to reset the card. Consumers should refrain from giving out any personal information and to hang up without pressing any numbers.

If you believe you are a victim of this scam or need any additional information contact the South Dakota Consumer Protection Division at 1-800-300-1986 or Anyone who has given out personal financial information should contact their financial institution immediately.