Founded in 1941, GCS Federal Credit Union has always focused on our members. Over the past 70 years, we’ve grown from a single office in Granite City to a full service financial institution serving Madison and most of St. Clair counties in Illinois.

GCS accepts membership from anyone who lives, works, worships, or attends school in Madison or most of St. Clair counties.

GCS is big enough to offer convenience, but small enough to offer customized financial services to meet your ever-changing needs. We are not pushy and profit driven – we look out for your best interests. It’s what makes banking with a credit union so satisfying.

GCS – we’re here when you’re ready!