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Our lobbies in Rapid City, Box Elder, Custer and Winner are temporarily closed to walk-in traffic as an added precaution due to COVID-19. Our drive-up locations are open and our other branch locations are open for normal business.

We encourage you to take advantage of our remote services, including our Mobile Banking App and our Online Banking. With our Mobile App you can remotely deposit checks, transfer funds, apply for a loan, pay bills, make loan payments and more.

Download our app on the App Store and on Google Play. Simply login using your Online Banking username and password.

Call Center Available
Our Call Center Representatives are available Monday through Friday from 7:30 a.m. to 5:30 p.m. (MT). Please give us a call at 605-923-1405. You may experience longer wait times, due to the increase in calls. We appreciate your patience as we work to serve you as quickly as possible.

CO-OP ATMS & Shared Branches Available
We are part of the CO-OP ATM and Shared Branch network. To find the nearest ATM or Shared Branch visit www.allco-op.org or call 1-888-SITE-CO-OP.

Remember, your funds are safe, and we want to keep you and our employees safe. That is our top priority and we thank you for your patience as we navigate this current situation. We will continue to keep you updated with any changes.

We appreciate your valuable membership.

Other News & Updates

Check out other recent Credit Union and Financial News & Updates.

What Our Members Say About Us

Joshua K.

Member

“Been a loyal member for years! Keep your account positive and make your payments. If life happens keep them updated, as they have ways of working with you. I am glad they are a part of my financial family.”

Bret R

Member

“I have been using Sentinel for almost 30 years, and my family has been just as long! I purposely make the extra drive to the Radar Hill Branch with Nate working there! Not only has he always been on the ball of my personal account, but my business account! He has resolved issues with other banks in a timely manner when he didn’t have to! Every time I go on he always has a smiling face and is easy to work with.”

Chris P

Member

“If you’re in the Rapid City area and you’re looking to drop the elbow off the top rope, Macho Man style, then look to Sentinel Federal Credit Union! Their customer service is off the hook and when you call you never get a robot or an automated answering machine! I don’t think I’ll trust another big bank with my money for as long as I live! By the way, I don’t even live in South Dakota!”

Joe M

Member

“We have several credit unions that got lost in the mix during a move–our bad. However, out of all of those credit unions, SFCU went OUT OF THEIR WAY to ensure we knew our account was dormant and helped us through the process of getting the account back on track. They also refunded every fee taken for dormant status. After losing more money than I’d like to admit from other institutions, I cannot tell you how much I appreciate the customer service of Sentinel FCU.”