Reminder: DO NOT give out your OnLine Banking credentials or debit card information.
Contact Us
How can we help you?
Our staff is committed to serving our members each and every day. We are focused on the impact we can have on our member's lives - whether that is an everyday question or planning for a new financial milestone. Our goal is to be in the moment when we communicate with our members, always be learning about their financial needs, and strive to deliver awesome every time. We're here to help so please don't hesitate to contact us!
Lost or stolen card? Call 1.800.472.3272
If you experience suspicious or fraudulent activity, contact us: 1-800-645-4728.
"I've been with GSCU for a few years now, I really enjoy the customer service and the immediate response and assistance whenever I need something."
Member Testimonial
Contact Options
Need to send personal account information, such as your Member Number or Social Security Number? Please be sure to utilize our Secure Message Center.
Call Us
Main Office
Available 24 hours a day
Toll-Free: 1-800-645-GSCU (4728)
Local: (603) 668-2221
Fax: (603) 965-1082
ATM/Visa® Check Card
After hours support
Card Processing Center - Report your card lost or stolen
Toll-Free: 1-800-472-3272
Retirement & Investment Services
Representative John Castelot
Toll Free: 1-800-279-8083
Snail Mail
Granite State Credit Union
P.O. Box 6420
Manchester, NH 03108-6420