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Our Story

About Security First Bank

Security First Bank is a Nebraska-chartered, privately-held community bank with 25 branch locations and 12 insurance offices throughout Nebraska and southwest South Dakota. We provide community banking services from the farm and ranch towns in rural Nebraska to the hub cities of Lincoln and Rapid City. Each branch is managed locally, and our employees are part of the communities we serve. This gives us valuable, local perspective and a personal commitment to servicing your financial needs.

Security First strives to improve the lives of the families and business we serve with creative, high-quality financial services. We believe that attention to detail, flexible and innovative services and remarkable customer care are the pillars of successful community banking, and we’ve been committed to those standards since our founding.

In 1898, nine ranchers in northwestern Nebraska started Stockmens National Bank of Rushville, Nebraska. Fast-forward 125 years, Stockmens National Bank – now known as Security First Bank – has grown to encompass 25 bank branch locations, 12 insurance offices, one loan production office, and employs nearly 300 people throughout Nebraska and southwest South Dakota.

For 125 years, we’ve been “the bank” of our communities. As we celebrate and reflect on our history, we remain committed as ever to meeting the financial needs of the families and businesses we serve – now and for generations to come.

Community Involvement

Security First Bank is dedicated to fostering financial inclusivity and meeting the diverse needs of our communities.

To learn more, watch Welcome to Security First and learn our story:

Our Story


Stockmen's National Bank founded in Rushville, Nebraska


Began operating our insurance division


Acquired our Cozad, Nebraska branch


Acquired our Overton, Nebraska branch


Acquired our Martin, South Dakota branch


Acquired our Hay Springs, Sidney, Crawford, and Harrison, Nebraska branches


Began operating The Badlands Express, mobile bank branch

Acquired our Elwood, Nebraska branch


Purchased our Lincoln, Nebraska branches

Changed our name from Stockmen's National Bank to Security First Bank


Purchased our Cody, Merriman and Thedford, Nebraska branches


Opened our Rapid City, South Dakota branches


Acquired our Beatrice, Blue Springs, Cortland and Clatonia, Nebraska branches


Acquired our Valentine, Nebraska branch


Built our new Chadron, Nebraska branch


Opened our Spearfish, South Dakota loan production office


Launched our Video Teller service


Opened our new corporate headquarters building in Rapid City, South Dakota