Stop by. Call us. Email us. We are here to answer.


3350 Salt Creek Lane, Suite 100 
Arlington Heights, IL 60005

Phone/ Fax:

Phone: 847-342-9300 
Outside Chicagoland: 800-662-2772
Fax: 847-342-0740

MCU's ABA Number (Routing): 271986801

Email Us:

Members:  Please go to MCU Online Banking, log in, and use the secure "contact us" feature under the "MCU Services" tab. That way all your important account information is held securely behind our firewall, and you are not at risk of people stealing your personal information.

Not a member yet?:  If you are not a member and have questions about MCU, contact us using our secure email form.