Security Bank

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your dependable partner

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work with the best

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banking on the bright side

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here for good

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Special CD Rates

Reap the Savings

friendly greetings. familiar faces.

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better every day

enhanced online banking

Built around small towns and good people.

Security Bank was established in 1932 in rural South Dakota and has been building strong client relationships ever since. Through advanced banking technology and commitment to superior customer service, we are growing into new markets and providing new opportunities for the people who live there.

Today, we are proudly moving forward as Security Bank, with a progressive new brand and an even greater mission to make a difference in the communities we serve.

secure online banking

Welcome to our new .BANK domain! We made the move from .COM to .BANK for an even more secure banking experience. The .BANK domain is exclusive only to banks, providing an enhanced level of security against imposter sites, giving you – our valued customers – peace of mind.

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Enhanced Online Banking Experience

find a banker

Our knowledgeable bankers are always available to guide you on your journey toward financial success. Whatever your questions, our doors are open. Stop by or contact one of our locations.

We make it happen.

We have been around since 1932, always with our eyes on the future. Our visionary leadership team is dedicated to providing our communities with the most advanced technology, products and services in order to keep you connected and thriving. You can enjoy mobile banking, online access, less paperwork, faster response times and the knowledge that a great team is on your side, no matter what you need or when you need it.

We've grown a lot over the past 90 years, but relationships and community support will always be the theme of our story.

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John Baumiller, the President of Security Bank, standing in office with arms crossed

from a customer

“You just feel like it’s all family. They care about making things right for you, and that’s what I really appreciate."

Justin Storm, business banking customer