
Celebrating 125 Years
For 125 years, we’ve been “the bank” of our communities.

Mortgage Special
Save on your home loan with a FREE* Appraisal!

Green Checking Special
Earn up to 2.89% APY on your Green Checking account.

Video Teller
Connect with a banker using live video technology at a Security First ATM!

Our Most Flexible CD
Our Flex CD allows you to make additional deposits, withdraw funds, and increase your rate one time during the term. Click Learn More for complete account details.
Security First Bank: Banking with you in mind
At Security First Bank, it’s all about you! We make banking easier than ever with our complete approach to customer service. 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. We offer personal and business banking, savings, loans, home mortgage, and full insurance services. Whether you have small or large-scale needs, we’re here to serve you.
Community News


Managing Spending and Debit During The Holidays
October 20th, 2023
Head Into Shopping Season Ready to Manage Spending and Debt Retailers once again have begun their bid for consumers’ attention with big sales early in…


Gage County Branches Voted Favorite Bank
July 12th, 2023
Our Gage County locations and staff in southwest Nebraska were recently voted by Beatrice Daily Sun readers as Gage County’s Favorite: Bank Place to get…


Rapid City Branches Receive Granite Award
July 12th, 2023
Security First Bank in Rapid City is honored to have been selected as the 2023 Elevate Rapid City’s Granite Award recipient at the 2nd annual…