We welcome your comments and questions, so please feel free to contact us.
- Debit Card changes coming soon. Get details on the opt-in notification.
- Need to reactivate your online banking account?
- Forgot your online banking password?
- Need to order checks?
- Send us a message
Telephone Numbers (Mon. – Fri. 9 am – 5 pm MT)
Main Phone: 605-923-1405
Toll-Free: 888-923-1400
Main Fax: 605-923-3960
Overseas DSN: 675-6303
To Report Lost or Stolen Cards (Mon. – Fri. 9 am – 5 pm MT)
Main Phone: 605-923-1405
Toll-Free: 888-923-1400
To Report Lost or Stolen Cards (After Business Hours)
800-472-3272 (ATM Cards)
800-682-6075 (Debit Cards)
800-543-5073 (Credit Cards)
Routing Number: 291479291
Mailing Address
Sentinel Federal Credit Union
PO Box 700
Box Elder, SD 57719
Email Us: Send us a message
