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Our Mission, Vision, & Values

We believe EVERYTHING MATTERS — your plans, dreams, and all the little steps in between.

We believe what was worth doing well yesterday is still worth doing well today. People change and banking changes, but our time-tested principles remain.

We believe integrity, honor, open-mindedness, efficiency, good humor, respect, duty, and human connection matter in life — and in banking.

We believe doing what’s right is the only way to take care of customers, empower businesses, help farms grow, inspire our community, and accomplish the remarkable.

Our History

Security National Bank was chartered in 1884 in Sioux City, Iowa, founded on the time-tested principles of integrity, honor, open-mindedness, efficiency, good humor, respect, duty, and human connection.

These principles served as guideposts that enabled SNB to withstand the economic panic of the late 1800s, the Great Depression, two World Wars, and the farm crisis; and emerge as the region’s most established and trustworthy locally owned bank, with more than $1 billion in assets.

Today, Security National Bank is located wherever you need us most — including the palm of your hand, thanks to online and mobile banking. We also have physical branches located across Sioux City, Sioux Falls and rural Siouxland in Akron, Lawton, Mapleton, Moville and Climbing Hill.

Our Promise

To do what’s right, because it matters.

To help you achieve your financial goals, because they matter.

To be your trustworthy financial partner, because you matter.

Our values represent the core of our beliefs in terms of how we want to operate.

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