Scam Alert! We've been notified by our members that imposters are spoofing our phone number and are asking for personal information. As a reminder, we will NEVER call asking you to disclose confidential information. Please send us a secure message via Digital Banking if you have any questions.
We apologize for the long hold times. You may access your account balance(s), transfer funds, and make payments via Digital Banking and the Firstmark App. You can also leave us a call back number to avoid the wait or send us a secure message via Digital Banking. We appreciate your patience, and as always, thank you for your membership.
Local: (210) 442-0100
Toll Free: (800) 683-1211
Mon – Fri: 8:00 am – 6:00 pm
Sat: 9:00 am – 4:00 pm
Local: (210) 442-0199
Mon – Fri: 8:00 am – 6:00 pm
Sat: 9:00 am – 4:00 pm
Local: (210) 366-2255
Toll Free: (888) 683-1211
Support: (888) 918-7313
Fraud Department: (800) 235-7728
Credit Card: (866) 820-3034
Debit Card: (866) 820-0995
We have 12 convenient locations in San Antonio, La Vernia, and New Braunfels, Texas. Book an appointment to avoid a wait!
Mon – Fri: 9:00 am – 5:30 pm
Sat: 9:00 am – 1:00 pm*
Sun: Closed
We have convenient locations spread across San Antonio, and in the surrounding areas of La Vernia, and New Braunfels, Texas.
Here is a list of services that are available inside our lobbies:
To get started, follow the steps below:
The free Firstmark Credit Union App allows members to securely view account balances, deposit checks, transfer funds, and more.
Corporate Office
2023 Gold Canyon Dr.
San Antonio, TX 78232
General Mail
P.O. Box 701650
San Antonio, TX 78270-1650
Secure Messaging
Log in to Digital Banking to send a secure message.
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To make this process as quick as possible, please have the following ready for yourself and any joint account holders on the account, including beneficiaries:
Choose one of the following:
Needed Items
To make this process as quick as possible, please have the following ready for yourself and any joint account holders on the account, including beneficiary’s: