about us

Sentinel Federal Credit Union has been guarding and protecting the financial well being of our members since 1955. Our mission is to maintain integrity and protect the financial future of our member owners.

Additional Information

Routing Number:

Sentinel FCU Routing Number: 291479291

Rapid City Telco FCU Routing Number: 291479673
Existing Telco member numbers will continue to use the Telco routing number until Dec. 5, 2015.