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


2401 Plum Grove Rd., Suite 100 
Palatine, IL 60067

Phone/ Fax:

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

24-hour Phone Banking

847-342-9300 ext. 1
Outside Illinois: 800-662-2772, ext. 1

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.