Sentinel Federal CU
Apply for Credit Union Membership

Welcome to Online Banking!

Enjoy the benefits of ownership! You are eligible for membership if you live, work, worship, or go to school in, or are a business or other legal entity located in the following South Dakota counties: Pennington, Lawrence, Meade, Custer, Lyman, Todd, Tripp, Gregory and Mellette. We'd also like to remind you that your family members are eligible to join. This includes your spouse, child, sibling, parent, grandparent, grandchild, stepparents, stepchildren, stepsiblings, and adoptive relationships. Just complete a membership application online. The application will be submitted directly to the credit union's computer system for prompt consideration.

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