Contact Us

Mailing Address:


Fort Sill Federal Credit Union

PO Box 1527
Lawton, OK 73502-1527

 Branch and ATM Locations

Routing Number: 303184856

Telephone Numbers:


FSFCU Contact Number



Toll Free: 1-800-654-9885

Live Chat:  Do you want to connect with us FAST?  Hang up the phone and log in to Online Banking to initiate a chat session and connect directly to our Contact Center. If you have a question about a transaction in your history, setting up payees on Bill Pay, or anything dealing with your accounts you can get quick and convenient service using Live Chat!


Korea, Germany, Afghanistan, Iraq, and Kuwait



STAR Automated Teller



STAR (Local)



Contact Center Hours

Monday - Friday

7 AM - 7 PM


8:30 AM - 1 PM


Fax Numbers:


Fort Sill Branch Fax



East Branch Fax



West Branch Fax



South Branch Fax



Welcome Center Fax



Contact Center Fax



Lost or Stolen Debit / Credit Card:


Credit Cards Call


1-800-472-3272 option 2

Debit Cards Call


1-800-472-3272 option 2

Fraud Detection Center (Debit and Credit Cards)


If notified by the Fraud Detection Center, their phone number is 800-262-2024.


Email Us:


Send Us a Message

Email our Web Department

Secure Messaging: Are you already a member and enrolled Online Banking? If so, log in to Online Banking and visit your Messaging Center. You are able to communicate directly with us, via encrypted messages, making sure everything we discuss is safe and confidential.

Supervisory Committee

If you still have questions or concerns after addressing them through the credit union management structure, please mail them to:

Fort Sill Federal Credit Union
Supervisory Committee
PO Box 3672
Lawton, OK 73502-3672


Need to Update Your Contact Info With Us?

If you are an Online Banking user, you can update your contact information online. Sign in to Online Banking and select Settings from the top of the page. Under the Profile section you will see and option to change your address.

If you are not an Online Banking user you can enroll here or contact us directly at 1-580-353-2124 or toll free at 1-800-654-9885.


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