Contact Us

contact phone

Phone 713-778-6300 (Main)    Fax 713-778-6320

  • 8 a.m. to 4 p.m. CDT (M,T,Th,F)
  • 9 a.m. to 4 p.m. CDT (Wednesday)
  • Closed on Saturdays, Sundays, and Federal Holidays
  • Using your touch tone phone you can get account information and perform transactions 24/7 using the Voice Response, simply call 713-778-6350


ATM/Debit Card:   (800) 528-2273
Credit Cards:   (800) 820-8450

Debit Card & ATM Activation, please call 1-866-619-0245

Debit Card & ATM Pin Change, please call 1-877-267-6914


contact email

Methods for Sharing Confidential Information. Confidential information may be securely sent or discussed through the following MCU systems:

Secure Email is accessed through MCU Online. You must be enrolled in MCU Online to use Secure Email.

Encrypted Email – If a MCU representative sends you an encrypted email, you will be  asked to login and create a password before you can even view the email.  You may reply to that email and your message will also be encrypted when it is sent back to MCU.




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